JPH09212657A - Drawing display processor - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To easily and surely display target information by unifying the display forms. SOLUTION: The display order is set in advance for each type of basic graphic elements forming a drawing, for example, "line", "symbol", "character". Then, when displaying this drawing, after displaying all the basic graphic elements of which the type is "line", all the basic graphic elements of which the type is "symbol" Finally, the basic graphic element whose basic graphic element type is "character" is displayed. Thereby, for example, the same two figures composed of "symbol" and "line" are registered in the order of "symbol" and "line",
On the other hand, even if the "symbol" and "line" are registered in this order, all figures are displayed in the order of "line" and "symbol". For example, in one figure, the "line" overwrites the "symbol". On the other hand, the "symbol" is not overwritten with the "line".

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facility information management system or the like for managing various facilities arranged in a two-dimensional space by utilizing a CAD drawing or a map. The present invention relates to improvement of a drawing display processing device that performs display processing on a display device such as.

[0002]

2. Description of the Related Art Using CAD drawings, maps, etc.,
As a facility information management system for managing various facilities arranged in a two-dimensional space, for example, in the water treatment field,
There is a system for the purpose of maintaining and managing these distribution pipes and water supply facilities, which are arranged according to the land use situation, on a map. Further, for example, in the field of electric power, there is a system or the like for the purpose of maintenance management or monitoring / control of distribution lines, electric poles, electric equipment, etc. on a map in accordance with the actual laying situation.

In these systems, management information of water pipes, water facilities, distribution lines, utility poles, etc., such as lines including broken lines, preset symbols, characters,
Alternatively, it is displayed by combining graphic elements such as surfaces including polygonal surfaces.

[0004]

However, in the above-mentioned conventional drawing display processing apparatus, the first problem is as follows.
The management information is managed for each graphic element such as a line, a symbol, a character, and a surface that compose the management information, and these graphic elements are sequentially displayed on the display screen in the order of creation. As shown in FIG. 16, when the graphic elements are created in the order of the symbol s51, the polygonal line s52, and the symbol s53, the graphic elements are overlaid and displayed in this order. Therefore, the polygonal line s52 is displayed above the symbol s51, and the polygonal line s52 is displayed below the symbol s53.
Will be displayed, and the display relationship between the symbol s51 or s53 and the polygonal line s52 will be changed to the symbols s51 and s53.
And will be different. That is, there is a problem that the display form of the portion in which each graphic element is displayed in a superimposed manner is not constant even when the same graphic element is displayed in a superimposed manner.

A second problem is that, for example, when displaying management information on a wide range of maps, the number of graphic elements that make up the management information is enormous. The graphic element corresponding to the range actually displayed on the display device is searched and displayed. Therefore, as the size of the original drawing, in this case the map, increases, the amount of graphic elements also increases, and accordingly, the processing time until the necessary graphic elements are searched for and displayed increases, and the processing time becomes longer. is there.

A third problem is that, for example, when a display device is enlarged and displayed from a state where it is displayed at normal magnification, it is assumed that the display size of characters or symbols is constant regardless of the display magnification. For example, as shown in FIG. 17, when the distance between the character and the symbol before the enlarged display is “I”, when the enlarged display is performed, the distance between the character and the symbol is increased according to the display magnification. If they are displayed far apart and are enlarged by a factor of 2,
The distance between them becomes "2 · I". Therefore, for example, when the name of a symbol is displayed in characters, it is difficult to identify which symbol the character represents.

Similarly, for example, as shown in FIG. 18, when a plurality of symbols, in this case, "○" are combined to mean one facility, etc., the plurality of symbols are separated when enlarged and displayed. Since the symbols are displayed, they are regarded as independent symbols, and there is a problem that the operator cannot recognize that they are one piece of equipment.

Further, as a fourth problem, in a power facility management system for managing distribution lines, electric poles, electric equipment, etc., for example, when only electric poles are displayed, or when only distribution lines are displayed, etc. A layer is formed for each purpose, such as a layer displaying a utility pole, a layer displaying a distribution line, and the like, and the layers are changed and displayed so that only the utility pole or only the distribution line is displayed. . However, if characters or the like that identify them are displayed on the utility pole or distribution line, it is not possible to delete only some of the graphic elements in the same layer, such as deleting only the characters. There is a problem that it is not easy to use.

Therefore, the present invention has been made by paying attention to the above-mentioned unsolved problems of the related art, and improves the processing efficiency of the drawing display processing, and unifies the display form of the target information easily and surely. It is an object of the present invention to provide a drawing display processing device capable of displaying on the screen.

[0010]

In order to achieve the above object, a drawing display processing apparatus according to claim 1 of the present invention displays a plurality of basic graphic elements for each basic graphic element and displays a predetermined drawing. In a drawing display processing device for displaying on a screen, a display order setting means for setting a display order for each type of the basic graphic element, and displaying the basic graphic element based on the display order set by the display order setting means. And a display control unit for controlling the display.

Therefore, for basic graphic elements forming a certain drawing, if the display order is set in advance for each type of basic graphic elements, the basic graphic elements are displayed in this display order. Even when a plurality of basic graphic elements are superimposed and displayed to form a graphic, these basic graphic elements are always displayed in a predetermined order. A drawing display processing device according to claim 2 of the present invention is the drawing display processing device, wherein a plurality of basic graphic elements are displayed for each basic graphic element, and a predetermined drawing is displayed on a screen. The graphic element is characterized in that it is managed for each basic graphic element included in each area of the drawing divided into predetermined areas.

Therefore, for example, when the display target area is specified, the basic graphic element included in the display target area is specified by specifying the area corresponding to the display target area. A drawing display processing device according to claim 3 of the present invention is a drawing display processing device that displays a plurality of basic graphic elements for each basic graphic element and displays a predetermined drawing on a screen. It is characterized in that the display position of the basic graphic element is managed by using a reference point on the drawing and relative position information on the screen from the display position of the reference point on the screen.

Therefore, the display position of the specific basic graphic element is specified by the relative position information on the screen from the display position on the screen when the reference point on the drawing is displayed on the screen. For example, even when the display magnification is changed, the relative positional relationship between the display position of the specific basic graphic element and the display position of the reference point remains unchanged, and the relative positional relationship between the reference point and the specific basic graphic element is , It becomes constant regardless of the display magnification.

Further, in the drawing display processing device according to claim 4 of the present invention, a plurality of basic graphic elements are displayed for each basic graphic element, and a predetermined drawing is displayed on the screen. A grouping value specifying each group formed by grouping the basic graphic elements constituting the drawing in a predetermined combination, a mask value added to each basic graphic element, the grouping value and the Based on a function value with the mask value, it is determined whether or not the basic graphic element having the mask value belongs to the set specified by the grouping value, and the basic graphic element is displayed only when it is determined that the basic graphic element belongs. Display determining means.

For example, in a drawing formed of multiple layers, basic graphic elements belonging to the same layer are grouped in a predetermined combination, for example, basic graphic elements to be displayed at the same time, and each group is specified. Set the value. Further, a mask value is set for each basic graphic element. At this time, the grouping value and the mask value are, when a predetermined function value is obtained based on these values, based on this function value, a basic graphic element corresponding to the group specified by the grouping value, Set the value so that it can be classified as a non-applicable basic figure element. As a result, by specifying a grouping value that specifies each group, the grouping value is specified based on the function value obtained from each mask value and grouping value for the basic graphic elements belonging to the same layer. It is determined whether or not the basic graphic element corresponds to the set, and only the basic graphic element that is determined to be applicable is displayed, and the basic graphic element in the same layer corresponds to the specified set. Only basic graphic elements are displayed.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. FIG. 1 is an external view showing an example of a power facility management system to which the drawing display processing device according to the first embodiment of the present invention is applied. In this power facility management system,
Management information such as the distribution status of distribution lines or utility poles, electrical equipment, etc. is displayed on the map in a superimposed manner in accordance with the actual arrangement position of these distribution lines.

In the figure, reference numeral 1 denotes a display device such as a CRT display for displaying graphic elements (basic graphic elements) such as lines and symbols on a map in an overlapping manner to display the arrangement status of distribution lines, electric poles, electric equipment, etc. Reference numeral 2 is a mouse for performing screen operations or input / output operations, and 3 is a display processing device including a microcomputer for operating the display device 1 and the mouse 2.

As shown in FIG. 2, the display processing device 3 includes, for example, a map information storage unit 1 for storing display information of a map representing an area to be managed in the power facility management system.
1, an element information storage unit 12 that stores display information of graphic elements such as the type of graphic element and the display position of the graphic element on the map, and display order information storage that stores the display order for each type of the graphic element. Part (display order setting means) 13 and a graphic display processing part (display control means) for forming image information by reading out predetermined information from various information held in these storage parts 11 to 13. ) 14 and.

As the graphic element, for example, as shown in FIG. 3, a character consisting of a character string such as "ABCD", an arbitrarily set symbol, a line including a broken line, a surface such as a polygonal surface,
Etc. Then, the character, for example, the center coordinates are set as a base point, by specifying the display position coordinates and the character code of the base point with respect to the map,
The character specified by the character code centering on the base point is displayed at the position on the map corresponding to the designated display position coordinates. Similarly, for example, the center coordinate of the symbol is set as the base point, and the display position coordinate of the base point with respect to the map and the symbol code are specified, so that the symbol is displayed at the position on the map corresponding to the designated display position coordinate. , The symbol specified by the symbol code is displayed centering on the base point. This symbol code is set in advance, and the symbol code and the shape information of the symbol corresponding thereto are associated in advance and stored in a predetermined area.

Further, the line is identified by the display position coordinates of the end points at both ends of the line segment with respect to the map, and the line type information indicating the type of line connecting these end points such as arcs and straight lines. A line segment connecting the two points specified by the position on the map corresponding to the display position coordinates with the line type specified by the line type information is displayed. Further, for a surface such as a polygonal surface, display position coordinates of the end points of a plurality of line segments forming the polygonal surface with respect to the map and line type information such as a curve or a straight line connecting the end points are specified. Furthermore, by specifying a specified pattern such as texture or hatching that specifies how to fill the inside of the area formed by these line segments, a line between the points specified at the position corresponding to the display position coordinates can be drawn. A closed area composed of line segments connected by the line type specified by the seed information is displayed, and the inside of the closed area is filled and displayed by the method specified by the designated pattern.

In the element information storage unit 12, types of graphic elements such as characters, symbols, lines, etc., which represent management information such as arrangement status of distribution lines or electric poles, electric equipment, etc., and display of the graphic elements on the map. Preliminarily associated with position information,
It is stored as a graphic data group. That is, when the graphic element is a character, the display position coordinates and the character code of the base point with respect to the map are stored,
When the graphic element is a symbol, the type of the graphic element, the display position coordinates of the base point on the map, and the symbol code are stored. When the graphic element is a line, the type of the graphic element, the display position coordinates of the end points of the line segment with respect to the map, and the line type information are stored. In the case of a polygonal surface,
The type of graphic element, the display position coordinates of the end points of the line segment with respect to the map, the line type information, and the designated pattern are stored. The graphic element display information for each graphic element is stored in the element information storage unit 12 in the order in which the graphic elements are set.

In the display order information storage unit 13, the display order for each type of the graphic element is preset and stored. For example, the display order is the first "line", the next "symbol", The third is set as "character", and finally "face". The graphic display processing unit 14 reads out map information for displaying a map corresponding to a designated area from the map information storage unit 11 and displays it on the display device 1 in accordance with the operation of the mouse 2 by the operator. Further, the management information corresponding to the area displayed on the display device 1 is superimposed and displayed on the corresponding position on the map displayed on the display device 1. For example, first, based on the graphic display order information stored in advance in the display order information storage unit 13, the graphic elements stored in the element information storage unit 12 are searched in the order in which they are stored. That is, the graphic element corresponding to the type of graphic element set first in the graphic display order information is detected from the element information storage unit 12. Then, in the order of detection, predetermined graphic elements are displayed at positions corresponding to the display position coordinates designated based on the graphic element display information of the graphic elements. Then, after displaying all the graphic elements corresponding to the first graphic element type, the graphic elements corresponding to the graphic element type whose display order is set to the second are sequentially read and displayed. Thereafter, similar processing is performed to display all the graphic elements forming the management information corresponding to the area of the map being displayed.

Next, the operation of the first embodiment will be described with reference to FIG. Now, it is assumed that a map of the area on the display device 1 is displayed, and management information such as distribution lines and electric equipment is displayed on the map. As the graphic elements that make up the management information, there are three types of characters, symbols and lines.
It is assumed that the type has been set. Graphic display processing unit 14
First, of the graphic elements stored in the element information storage unit 12, a graphic element that constitutes management information corresponding to the area displayed on the display device 1 is specified as the graphic data group MD to be displayed.

Next, referring to the display order search storage unit 13, the graphic display order information DD is read. In this case, the display order is, for example, “line”, “symbol”,
It is assumed that they are set in the order of "character". Next, in the figure display processing unit 14, the figure data group MD including the figure elements D _{1 to} D _n identified as the figure data group to be displayed.
Referring to the figure display order information DD, first, the figure elements having the type of figure element set to "line" are searched in the order in which they are stored.

In the case of FIG. 4, since the graphic element D3 is a "line", the graphic element display information of the graphic element D3 is read out and a line designated between two points on the map corresponding to the designated end point position coordinates is read. Tie with seeds. Then, in the same manner, a graphic element whose type is “line” is searched and displayed. Then, when the display process is performed on the graphic element Dn of the "graphical line" which is the last graphic element in the graphic data group MD to be displayed, the display order is the second in the graphic display order information DD. The set "symbol" is processed in the same manner as above. That is, the graphic data group MD is sequentially searched from the beginning, and the graphic element display information of the graphic element whose type of graphic element is set to "symbol" is read. Then, the symbol specified by the symbol code designated by the graphic element display information, for example, the graphic element D2 is displayed so that its base point is at the position corresponding to the display position coordinates.

After all the graphic elements having the graphic element type set to "symbol" are displayed, the above-mentioned "character" having the third display order in the graphic display order information DD is described above. Search as well. Then, based on the graphic element display information, the character specified by the specified character code is displayed such that its base point is at the position corresponding to the specified display position coordinates.

Then, when all the graphic data groups MD are searched for those whose graphic elements are "characters", it is assumed that all the predetermined graphic elements have been displayed, and the processing ends. As a result, the display device 1 first displays the graphic data group MD.
Among these graphic elements, "line" is displayed, then "symbol" is displayed, and then "character" is displayed. Therefore, for example, even when the "line" and the "symbol" are displayed in an overlapping manner as shown in FIG. 16, for example, the "symbol" is always displayed on the upper side. As shown in the figure, the graphic formed by combining the same graphic elements such as the graphic in which the "symbol" is overwritten by the "line" and the graphic in which the "line" is overwritten by the "symbol" are different display modes. It is not displayed and can always be displayed in a constant display form.

Further, when the "character" or the like is superimposed and displayed thereon, the character may not be read, but the graphic display order information DD is displayed so that the character is displayed last.
By setting, it is possible to reliably display the character information for display. Further, regardless of the registration order of the graphic elements in the element information storage section 12, the graphic elements are displayed in the order specified by the graphic display order information DD set in the display order information storage section 13. It is not necessary to register the element in the element information storage unit 12, and the processing efficiency can be improved.

In the first embodiment, the case where the display order is set for all types of graphic elements has been described. However, for example, only the relationship between "lines" and "symbols", etc. It may be set only for the graphic elements to be displayed in a superimposed manner, and can be arbitrarily set as necessary. It is also possible to set the display order for each graphic element, for example.

In the first embodiment, for example, the case where the display order is set in units of lines, symbols, or characters as the type of graphic element has been described. It is also possible to set the display order for each type of line or each type of symbol. Further, in the first embodiment, the case where the figure display order information DD is fixed has been described, but the present invention is not limited to this. For example, the figure display order information DD is set in advance for each display drawing, and the display is performed. It is also possible to display based on the corresponding figure display order information DD according to the drawing.

Next, a second embodiment of the present invention will be described. The drawing display processing device according to the second embodiment has the same configuration as the drawing display processing device according to the first embodiment shown in FIGS. It is the same except that the method of searching the graphic element from the data group MD is different.

The graphic display processing unit 14 in the second embodiment reads out predetermined map information from the map information storage unit 11 and displays it on the display device 1 as in the first embodiment. Of the graphic elements stored in the element information storage unit 12, the graphic elements specified as the display target graphic data group MD are searched in the order in which they are stored, and the type of the graphic element is calculated from the graphic element display information of the graphic element. To detect. Then, the storage position information that specifies the storage position in the element information storage unit 12 in which this graphic element is stored is detected. Then, an index ID for each type of graphic element representing the storage location of the graphic element display information of each graphic element is formed in a predetermined storage area such as a memory, and the detected storage position information is sequentially provided from the beginning of this index. Are sequentially stored, and indexes are similarly created for all the graphic elements of the graphic data group MD.

Next, the index I for each graphic element in the order specified by the graphic display order information DD in the display order information storage unit 13.
See D. That is, the index ID of the graphic element set first in the display order is first referred to, and the position of the element information storage unit 12 specified by the storage position information is specified in the order stored in this index ID. The stored graphic element display information is read and displayed on the display device 1 in the same manner as in the first embodiment. Then, when all the graphic elements are displayed for this index ID, the index ID corresponding to the graphic element whose display order is set to the second is referred to, and the graphic elements are searched in the same manner as described above. Is displayed. Then, when the display processing is completed for all index IDs, the processing is terminated assuming that all predetermined graphic elements are displayed.

Next, the operation of the second embodiment will be described with reference to FIG.
Will be explained. For example, assuming that a map of a certain area is displayed on the display device 1 and the graphic elements forming the management information are displayed on the display device 1 as in the first embodiment, the graphic display processing unit 14 , Element information storage unit 1
Of the graphic elements stored in 2, the graphic elements forming the management information corresponding to the area displayed on the display device 1 are specified as the graphic data group MD to be displayed.

Next, referring to the graphic data group MD, for example, the graphic elements of the graphic data group MD are searched in the order in which the graphic element display information is stored, and the type of the graphic element is detected. For example, in the case of FIG. 5, since the graphic element D ₁ of “character” is initially stored, the position in the element information storage unit 12 where the graphic element D ₁ is stored is used as the storage position information and “character” is stored. The index ID ₁ of "is stored in order from the beginning. Next, the second figure data group MD, because graphical element D ₂ of the "symbol" is stored, the graphic element in the order from the head of the index ID ₂ of "symbol" D ₂
The storage position information for specifying the storage destination in the element information storage unit 12 is stored. Similarly, if the next graphic element D ₃ is, for example, a “line”, the storage position information of the graphic element D ₃ is “line”.
The index ID ₃ is stored in order from the beginning. Then, if the next graphical element, for example, "symbol", and stores the index ID ₂ of the storage location information of the graphic element "symbol", the next storage location information of the graphic element D _2. Then, similarly, all the graphic elements D _{1 to} D _n of the graphic data group MD are registered in the index ID.

When all the graphic elements have been registered in the index ID, next, the graphic display order information DD stored in the display order information storage unit 13 is referred to,
Index I of the "line" whose display order is set to 1
See D ₁ . Then, in the order registered in the index ID ₁ , the graphic element display information stored in the position of the element information storage unit 12 specified by the storage position information is read out, and based on this graphic element display information, the first The display is the same as in the above embodiment. Then, the graphic element display information stored in the corresponding position of the element information storage unit 12 specified by all the storage position information registered in the "line" index ID ₁ is read out, and based on this graphic element display information Display a predetermined graphic element on. Next, referring to the index ID ₂ of the “symbol” set as the second display order in the graphic display order information DD, the index ID is similarly set.
_The graphic element display information stored in the position of the element information storage section 12 specified by the storage position information is read in the order registered in ₂ , and a predetermined graphic element is displayed based on this graphic element display information. . Then, next, the graphic element designated in the same manner is displayed by referring to the index ID ₃ of the "character" designated by the graphic display order information DD so as to be displayed third.

Therefore, the graphic display processing unit 14 searches the graphic data group MD in the element information storage unit 12 for
The index element need only be read once when the index is created, and thereafter, the graphic element display information need only be read from the position of the element information storage unit 12 corresponding to the storage position information specified by each index. Therefore, in the first embodiment, since the graphic data group MD is searched for each type of graphic element, the graphic data group MD is searched as many times as the number of types of graphic elements. However, in the second embodiment, since the search for the graphic data group MD only needs to be performed once, the search time can be further shortened, and the processing time required for displaying the management information can be further shortened. Therefore, the speed can be increased.

Therefore, it is possible to obtain the same effects as those of the first embodiment, shorten the processing time, and perform the quick display processing. In the above-described second embodiment, for example, the case where the display order is set in units of lines, symbols, or characters as the type of graphic element has been described. It is also possible to set the display order for each type of symbol,
In this case, if the index is created for each unit in which the display order is set, the speed can be further increased.

Next, a third embodiment of the present invention will be described. The drawing display processing device according to the third embodiment is the same as the drawing display processing device according to the first embodiment, in which each graphic element is managed for each predetermined group. 12 is the same as that of the above-described first embodiment except that the management method of the graphic element display information and the processing procedure in the graphic display processing unit 14 are different, and the device configuration is similar to that of the above-described first embodiment. is there.

The element information storage unit 12 in the third embodiment manages the graphic element display information by classifying it into predetermined areas. That is, for example, as shown in FIG.
When a drawing M larger than the displayable area of the display device 1 is to be displayed, the drawing M is divided in advance into each arbitrarily set range. In this case, for example, 5 × 5 = 25
It is divided into areas m _{11 to} m ₅₅ . Then, all the graphic elements forming the drawing M are classified, for example, into each area including the base point or end point position coordinates set in advance for each graphic element. Then, for each area, area files F _{11 to} F ₅₅ including graphic element display information of graphic elements included in this area are created and stored in the element information storage unit 12.

The figure display processing unit 14 specifies the area to be displayed on the display device 1 in the drawing M, and, for example, in FIG. 6, when the area AA is specified to be displayed, the area A is displayed.
An area that is partially included in the area AA is detected from the position information of A. In this case, the area m _MN (M = 2-4, N = 2-
4). Next, the area file corresponding to the detected area stored in the element information storage unit 12 is referred to, and the graphic element display information stored therein is referred to, for example, based on the display position coordinates or the end point position coordinates of the base point. The graphic element included in the area AA is specified.

Then, as in the first embodiment,
Based on the preset graphic display order information DD, the graphic elements identified as the graphic elements included in the area AA are displayed in the designated order. Further, for example, when the operator operates the mouse 2 to indicate the position (P) at which the management information is to be displayed on the map displayed on the display device 1, the graphic display processing unit 14 The area corresponding to the specified position on the map is specified, and only the graphic element of the area file corresponding to the specified area is displayed similarly to the above.

Therefore, since each graphic element is managed for each preset area, it is not necessary to search for all graphic elements to be displayed when the management information is displayed, and it is possible to specify Since it is only necessary to search for the graphic element in the area file corresponding to the specified area, the search time can be greatly reduced. Therefore, even if the drawing to be displayed is large and only a part of the area is displayed on the display device 1 such as a map, and the number of graphic elements is enormous, the desired management information can be obtained. Can be displayed quickly, and the display processing efficiency can be improved.

In the third embodiment, the case where the present invention is applied to the first embodiment has been described, but it is also possible to apply the present invention to the second embodiment. The processing efficiency can be improved. Next, a fourth embodiment of the present invention will be described. The drawing display processing device according to the fourth embodiment is the drawing display processing device according to the first embodiment, wherein the display position between the specific graphic elements displayed on the display device 1 is related to the display magnification. The first embodiment except that the graphic element display information of the graphic element stored in the element information storage unit 12 and the processing procedure in the graphic display processing unit 14 are different from each other. Is similar to
The device configuration is similar to that of the first embodiment.

In the graphic element display information of the graphic element in the fourth embodiment, as shown in FIG.
₁ and a character d ₂ for specifying this symbol d ₁ are displayed, or, as shown in FIG. 8, six symbols d _{21 to} d ₂₆ have a predetermined meaning, for example, an electric figure. When displaying a figure or the like representing the equipment, the display position of each of the graphic elements whose display positional relationship is limited regardless of the display magnification on the display device 1 is used as a reference of the display positional relationship of the graphic element. It is managed by the following preset virtual base point coordinates (reference point) and on-screen relative coordinates (relative position information) which are relative positions on the screen with respect to the display position when the virtual base point coordinates are displayed on the display device 1. ing.

For example, in the case of the graphic element element information of the graphic elements forming the management information shown in FIGS. 7 and 8, for example, as shown in FIG. 9, the management information of FIG. , Graphic element display information D _{11 to} D ₁₃ of the graphic element of the line segment d3 is stored. And the symbol d
_{The one} graphic element display information D ₁₁ is formed from the type (symbol) of the graphic element, the symbol code that specifies this symbol, and the display position coordinates of the base point of this graphic element with respect to the map. Also, the graphic element display information D _{13 of} the line segment d ₃
Is formed from the type (line) of the graphic element, the display position coordinates of the end points of this line, and the line type.

Then, the graphic element display information D _{12 of} the character d ₂
Is the position of the reference position with respect to the map in which the relative positional relationship between the type (character) of the graphic element, the character code identifying this character, and the character d ₂ on the display device 1 is constant regardless of the display magnification. It is composed of virtual base point coordinates that are coordinates and on-screen relative coordinates that relatively represent the display position of the character d ₂ with respect to the display position of the virtual base point coordinates when displayed on the display device 1.

In the case of FIG. 7, since it is desired to maintain a constant display positional relationship between the character d ₂ and the symbol d ₁ irrespective of the display magnification of the display device 1, the virtual base point coordinates are, for example, the base point of the symbol d ₁ . The display position coordinates on the map are set. Further, as the relative coordinates on the screen, the relative positional relationship of the display position of the character d ₂ with respect to the display position of the symbol d ₁ on the display screen of the display device 1 is, for example, that of the character d ₂ based on the virtual base point coordinates. It is set by the coordinates (X _S1 , Y _S1 ) representing the relative position of the base point.

As for the management information of FIG. 8, graphic element display information of symbols d _{21 to} d ₂₆ and line segments d _{31 to} d ₄₀ is stored as graphic elements. And the symbol d ₂₁ ~
The graphic element display information of d ₂₆ , like the graphic element display information D ₂₁ , is based on the type (symbol) of the graphic element, the symbol code specifying this symbol, the virtual base point coordinates, and the relative coordinates on the screen. It is formed. And
In this case, the display position relationship on the display device 1 of symbol d ₂₁ to d _26, because I want to be constant regardless of the display magnification, virtual origin coordinates of the symbol d ₂₁ to d ₂₆ are all set to the same position For example, the display position coordinates on the map of the center position Q of the graphic formed by the symbols d _{21 to} d ₂₆ are set as virtual base point coordinates. Then, with respect to the center position Q on the display screen, respectively set the relative positional relationship between the display position of the symbol d ₂₁ to d ₂₆ as a screen on the relative coordinates.

The end point is the symbol d._{twenty one}~ D₂₆Connected to
Line segment d₃₂~ D₃₅, D₃₇~ D ₃₉Graphic element display information
Information is graphic element display information D_{twenty two}As shown in
Type (line), line type, and line as the display position coordinates of the end point
The central coordinates of the symbol to which the minutes are connected, in this case
Coordinates of the display position on the display device 1 of the base point of the symbol
Symbol link information specifying the other end of the other end,
And the display position coordinates with respect to the map.

As the symbol link information, for example, in the case of the line segment d ₃₂ , the display position coordinate on the map is set as the display position coordinate at one end, and the line position is set as the display position coordinate at the other end. Since the other end of the minute d ₃₂ is connected to the symbol d ₂₁ , the base point of the symbol d ₂₂ on the display device 1 when the symbol d ₂₂ is displayed on the display device 1 based on the graphic element display information D ₂₁ . Set the symbol link information to set the position coordinates.

The end point is the symbol d._{twenty one}~ D₂₆Connect to
Line segment d not₃₁, D₃₅, D₃₆, D₄₀about,
Similar to the first embodiment, the graphic element display information D_{twenty three}
As shown in, type of graphic element (line), line type and its
It is formed from the display position coordinates of the end points. On the other hand, the fourth fruit
The graphic display processing unit 14 in the embodiment is configured to perform the above-mentioned first realization.
It is stored in the display order information storage unit 13 in the same manner as the embodiment.
According to the displayed graphic display order information DD, the graphic element display information is displayed.
Read the information. And first, the graphic element is a "line"
Read the graphic element display information. And the line segment d₃₁,
d₃₅, D₃₆, D₄₀Is specified in the graphic element display information.
Displayed in the same way as above based on the coordinates of the displayed end points.
I do. On the other hand, the line segment for which symbol link information is set
d₃₂~ D₃₄, D₃₇~ D ₃₉For the symbol link information
Refer to the graphic element display information of the symbol specified in the information,
It is specified by the virtual base point coordinates and the relative coordinates on the screen.
Calculate the position coordinates of the base point of the symbol on the display device 1.
The calculated position coordinates of the base point and the graphic element display information of the line segment.
Two points specified by the other end display position coordinates set in the report
Connect the lines with the specified line type.

After displaying all the line segments in this way,
Next, in the display order specified by the graphic display order information DD,
Search for a graphic element that is a "symbol".
The graphic element display information of is read. And the virtual base point coordinates
From the position on the display screen corresponding to
The symbol is displayed at a position relatively displaced by the feature. I
Therefore, for example, the symbol d_{twenty three}, Line segment d₃₄And d₃₅Is
It is displayed as shown in FIG. That is, the symbol d_{twenty three}
Is the position (Xo,
From Yo), relative coordinates on the screen, for example (X_S2, Y
_S2), The symbol d_{twenty three}The base point of is located
Is displayed and the line segment d₃₅Is the end point of the graphic element display information
It is displayed at the position on the display screen that corresponds to the display position coordinates,
Line segment d ₃₄Is the display image corresponding to the display position coordinates at one end
Line segment d displayed at the position on the surface ₃₅, And the other end is
Mbole d_{twenty three}It is displayed to be connected to the base point of.

After displaying all the symbols in the same manner, the graphic element display information is read out by finally searching for the graphic element "character". Then, similarly to the above, the virtual base point coordinates, in this case, the symbol d ₁
From the display position of the base point of, relative coordinates (X _S1 ,
The character string specified by the character code is displayed at a position shifted by Y _S1 ). Therefore, for example, in the case of the management information in FIG. 7, as shown in FIG. 11, the character string “# 123” is located at a position displaced from the base point of the symbol d _{1 by} the relative coordinates (X _S1 , Y _S1 ) on the screen. Will be displayed.

From this state, for example, in FIG.
Mbole d₁Change the display magnification to 2 times centering on the base point of
It shall be assumed. By this, the line segment d_ThreeIs the symbol d
₁The coordinates of the base point of the
The position coordinates of the end points of the
Are connected by a line, the symbol d₁Centered on the base point of
The left and right line segments are doubled and displayed. Soshi
The letter d_TwoIs a symbol whose virtual origin coordinates are
d ₁Is set as the base point of the
Since it is displayed at a position shifted by relative coordinates, the display magnification
As before, change the symbol d₁Scree from the base point of
It is displayed at a position shifted by the relative coordinates.

Further, for example, as shown in FIG. 12, assuming that the management information of FIG. 8 is changed to a display magnification of 2 with the virtual base point coordinate Q as the center, line segments d ₃₁ , d ₃₅ ,
d ₃₆ and d ₄₀ are 2 respectively from the display position of the virtual base point coordinate Q.
It is displayed as a line segment twice as long as the end point at a position twice as far away. Then, each of the symbols d _{21 to} d ₂₆ has a virtual base point coordinate Q.
Is displayed at a position shifted by a predetermined relative coordinate from the screen. Thus, the symbol of the pre-scaling d ₂₁ to d ₂₆
If the shift in the Y direction between the center point of each symbol, which is the base point of the symbol, and the virtual base point coordinates Q of these symbols is a, the shift between the virtual base point coordinate Q after the magnification change and the base points of the symbols d _{21 to} d ₂₆ will also be. Similarly, it becomes a. Similarly, the symbols d ₂₁ , d ₂₃ ,
The deviations of the base points of d ₂₄ and d _{26 from} the virtual viewpoint coordinates Q in the X direction are also the same before and after the magnification is changed. Therefore, the relative positional relationship between these symbols d _{21 to} d ₂₆ is that the display magnification is changed. It will be the same before and after.

The line segments d _{32 to} d ₃₄ and d _{37 to} d ₃₉ connected to these symbols d _{21 to} d ₂₆ respectively correspond to the positions corresponding to the base points of the connected symbols and the line segments to be connected. It is displayed at the position connecting the. Therefore, the display magnification is 2
If you change the magnification, because the relative positional relationship of the symbol d ₂₁ to d ₂₆ is displayed on the constant, so the symbol d ₂₁ to d ₂₆ Gahito unity, for example, even when the representative of the power facilities, conventional By changing the magnification,
The relative distances between the symbols are displayed apart from each other, which makes it difficult to understand that these symbols represent a specific meaning, and it is possible to reliably convey the management information represented by the symbols to the operator.

Further, even when the symbol is displayed in a positional relationship different from the relative positional relationship according to the actual display magnification, the line segment connected to this symbol is connected to the symbol for display. Therefore, it is not difficult to recognize the connection relationship between the symbol and the line segment. Further, even if a drawing in which a symbol is attached to the symbol is displayed twice, the symbol and the character are always displayed at a constant distance as shown in FIG. 11. By separating the display positions of the symbol and the character, the symbol targeted by the character can be easily recognized.

Since the display position is determined based on the virtual base point coordinates and the relative coordinates on the screen which are the deviations from the virtual base point coordinates on the display screen, the display magnification is, for example, 3 times or 5 times. Even when the magnification is changed to 10 times, 10 times, etc., it is possible to always display in a fixed relative positional relationship regardless of the magnification. Further, since the virtual base point coordinates and the relative coordinates on the screen can be set arbitrarily, for example, in FIG. 7, the virtual base point coordinates of the character d ₂ are changed to the end point coordinates of the line segment d ₃ , and the relative coordinates on the screen are changed. By changing the coordinates to the relative coordinates from the end point coordinates, it is possible to easily display the relative positional relationship between the end point coordinates of the line segment d ₃ and the character d ₂ as a constant regardless of the display magnification. .

In the fourth embodiment, for example,
For example, line segment d₃₄Is the symbol d perpendicular to the X axis_{twenty three}Connect with
Line segment d₃₄The diagonal
I explained about the case of displaying it for the purpose of
For example, line segment d₃₅Set the display position coordinates of the end point connected to
Bol d_{twenty three}Link to the X coordinate of the display position on the display screen of
And then the line segment d₃₅Line segment d₃₄Table of endpoints connected with
Set the position coordinates to the symbol d _{twenty three}Display position on the display screen
Set the end point coordinates to link to the Y coordinate of
By the line segment d₃₄Symbol d at right angles to the X axis_{twenty three}
It is also possible to connect and display with
Instead, it can be set arbitrarily.

In addition, in the fourth embodiment, the case where it is applied to the first embodiment has been described, but it is also possible to apply it to the second embodiment, whereby the processing is performed. The efficiency can be further improved. Next, a fifth embodiment of the present invention will be described. The drawing display processing device according to the fifth embodiment is the same as the drawing display processing device according to the first embodiment shown in FIG. 1 except that the processing by the graphic display processing device 3 is different. It is similar to the form.

FIG. 13 shows a schematic configuration of the display processing device 3 in the fifth embodiment, and stores map information for displaying, for example, a map as in the first embodiment. The map information storage unit 21, the element information storage unit 22 in which the graphic element display information of each graphic element is stored, as in the first embodiment, and the mask information storage unit in which the display mask information is stored. 23 and the graphic element display information in the map information storage unit 21 and the element information storage unit 22 according to the operation of the mouse 2 by the operator, for example, and a predetermined drawing is displayed based on the display mask information in the mask information storage unit 23. It is composed of a graphic display processing unit 24 for displaying on the device 1.

Then, in the element information storage section 22, for example, predetermined graphic element display information such as types of graphic elements, display position coordinates and the like are stored as in the first embodiment, and the graphic elements are displayed. A mask value is set for each type of element. For example, as shown in FIG. 14, "character", "symbol", and "line" are set as the graphic element, and "x1" is set for the graphic element of "character" as the mask value.
0 "(x represents hexadecimal number) is set, and" symbol "
"X04" for the graphic element of, and "x04" for the graphic element of "line"
ff ”is set.

Then, the graphic display processing section 24 manages the map information and the management information as display information of different layers. Then, according to the designation of the layer display by the mouse 2, the display information corresponding to the designated layer is read and displayed. Further, when displaying the management information, for the graphic elements in the same layer, only the graphic elements corresponding to the combination specified by the operation of the mouse 2 or the like based on the preset combination of the graphic elements to be superimposed and displayed. Is displayed.

This combination of graphic elements is arbitrarily set, for example, according to the management information to be displayed. For example, all graphic elements in the first combination, and "symbol" and "line" graphics in the second combination. In the element, the third combination, it is set to display graphic elements of "character" and "line". Then, a display mask value (grouping value) is set in advance for each of these combinations, for example, "xff" is set as the display mask value of the first combination, and a display mask value of the second combination is set. Is set as "x04", and the display mask value of the third combination is set as "x10".

When the operator designates these combinations by operating the mouse 2 or the like, the logical product of the display mask value corresponding to the designated combination and the mask value set in the graphic element display information for each graphic element is obtained. (AND) is calculated and the graphic element whose logical product is "x00" is detected. Then, only the detected graphic elements are sequentially displayed.

Next, the operation of the fifth embodiment will be described based on the flowchart of FIG. 15 showing the processing procedure in the graphic display processing section 24. For example, it is assumed that the map information is displayed on layer 1 and the management information is displayed on layer 2. When the operator operates the mouse 2 to specify that layer 1 and layer 2 are to be displayed, and for example, to specify the first combination as a combination for displaying management information, that is, to display all graphic elements, the graphic The display processing unit 24 reads out predetermined map information from the map information storage unit 21 and displays it as the layer 1 on the display device 1. For layer 2, the display mask information stored in the display mask information storage unit 23 is referred to, and the display mask value corresponding to the designated first combination is specified. In this case, it is set as "xff" (step S1).

Then, for the graphic elements belonging to layer 2, for example, the mask values are read out from the respective graphic element display information in the order in which they are stored (step S2). Then, the logical product of the read mask value and the display mask value is calculated (step S3, display determining means). Then, when the logical product is not "x00" (step S4), the graphic element display information of the graphic element is read out and a predetermined graphic is displayed on the display device 1 based on this information (step S5). Then, it is determined whether or not all graphic elements belonging to layer 2 have been processed (step S6), and the processing ends when all graphic elements have been processed.

On the other hand, if the logical product is "x00", it is assumed that the logical product is not displayed, and the next graphic element is processed. In this case, the display mask value is “xff”, and the graphic element belonging to layer 2, that is, “character”,
Since mask values “x10”, “xff”, and “x04” are set in the graphic elements of “line” and “symbol”, the logical products thereof are not all “x00”. Therefore, as shown in the case where the display mask value = xff in FIG. 14, all graphic elements are displayed.

At this time, for example, when the operator selects the second combination, the display mask value corresponding to the second combination is "x04". Therefore, when the mask value is "x10", The logical value becomes "x00".
Therefore, among the graphic elements of layer 2, the graphic elements of "character" are not displayed, and only the graphic elements of "symbol" and "line" are displayed (when the display mask value = x04 in FIG. 14).

Further, for example, when the third combination is selected, the display mask value corresponding to the third combination is "x10". Therefore, when the mask value is "x04", the logical value is "x04". x00 ". Therefore, layer 2
Of the graphic elements of, the graphic element of "symbol" having the mask value set as "x04" is not displayed, and only the graphic elements of "character" and "line" are displayed (display mask value = x10 in FIG. 14). in the case of).

Therefore, for example, it is specified that layer 1 and layer 2 are to be displayed in a superimposed manner, and then the first combination is selected so that the management information consisting of all graphic elements is displayed in a superimposed manner on the map. , By designating the combination according to the combination of the graphic elements to be displayed, only the designated graphic elements are displayed. For example, by combining the graphic elements in advance according to the purpose of use, it is easy. It is possible to display the graphic elements in a desired combination, and for example, it is possible to easily display an arbitrary drawing such as a drawing in which only characters are deleted from all management information, or a drawing in which only symbols are deleted.

Further, based on the logical product of the mask value set in each graphic element display information and the display mask value, it is determined whether to display, that is, whether to belong to the group specified by the display mask value. Therefore, the determination can be made in a short time and the processing efficiency can be improved. Also,
When changing the grouping, the combination of graphic elements can be easily changed by changing the mask value.

Since only arbitrary information can be displayed in the same layer, selection of a layer,
By changing the combination of graphic elements in the same layer, graphic display can be performed in various combinations. In the fifth embodiment, the mask value is set for each of “symbol”, “line” and “character”, but it can be set arbitrarily according to the purpose of use. For example, if different mask values are set for each type of symbol or line or for each character content, only lines of the same type or only symbols of the same type are displayed, or characters of the same meaning are displayed. Only the information can be displayed, and it can be used more effectively.

Further, in the fifth embodiment, the case where three combinations of graphic elements are formed has been described, but the present invention is not limited to this, and it is possible to arbitrarily set, for example, only “character”, Alternatively, it is possible to set a combination in which only “symbols” are displayed. Further, in the fifth embodiment, the case where the drawings formed of the multilayer layers are applied has been described, but the present invention is not limited to this, and it is also possible to apply to the drawings formed of only one layer.

In the fifth embodiment, the mask value and the display mask value are set to "x10", "x04", "xf".
Although the case of setting as “f” has been described, the setting is not limited to this, and it is possible to set arbitrarily. In short, only the logical product of the mask value of the graphic element not displayed and the display mask value is “x00”. The mask value and the display mask value can be arbitrarily set as long as they are 16
It is possible to set not only the value of the base number but also the value of the base number, for example. Similarly, not only when the logical product becomes “x00”, but a predetermined value that can be taken only by the logical product of the mask value of the graphic element not displayed and the display mask value can be arbitrarily set. Not limited to the logical product, if the function value determined by the function of the mask value of the graphic element and the display mask value is a predetermined value that can be taken only when the graphic element is not displayed, It can be set arbitrarily. Further, regardless of the case where only the graphic element whose function value between the mask value and the display mask value does not reach the predetermined value is displayed, the graphic in which the function value between the mask value and the display mask value becomes the predetermined value It is also possible to display only the element. In short, if the function value determined by the function of the mask value of the graphic element and the display mask value can be classified into two groups of the graphic element to be displayed and the graphic element not to be displayed, the mask value, the display mask value and the function are arbitrary. Can be set to.

In the first to fifth embodiments described above, the case where the drawing display processing device is applied to the power facility management system has been described, but the present invention is not limited to this, and the water supply facility management system or the CAD system. The drawings and the like can be arbitrarily applied.

[0078]

As described above, the drawing display processing apparatus according to the first aspect displays the basic graphic elements in the order set by the display order setting means. If the display order is set, multiple basic graphic elements of different types are overlaid to form a graphic, and a graphic formed of the same basic graphic element can be changed in the registration order of the graphic elements. Even in the case of registration, it is possible to display the graphic in which the basic graphic elements are superimposed and displayed in a fixed order regardless of the registration order of the basic graphic elements.

Further, the drawing display processing apparatus according to the second aspect manages the basic graphic elements forming the drawing for each basic graphic element included in each area of the drawing divided into predetermined areas. Therefore, since it is sufficient to search for the basic graphic element included in the area corresponding to the display target area, it is possible to shorten the search time for the basic graphic element and improve the processing efficiency of the drawing display processing.

Further, the drawing display processing apparatus according to claim 3 sets the display position of the specific basic graphic element on the screen from the preset reference point on the drawing and the display position of this reference point on the screen. Since it was managed with relative position information of
Regardless of the display magnification, the relative positional relationship of the basic graphic element with respect to the reference point on the display screen can be made constant.
Further, the drawing display processing apparatus according to claim 4 classifies the basic graphic elements forming a predetermined drawing into, for example, each type of basic graphic element in advance, and sets a grouping value for specifying each group. Also, a mask value is set for each basic graphic element, and it is determined whether or not it belongs to the specified group based on the function value of the grouping value and the mask value. Since the basic graphic elements are displayed, only the basic graphic elements of the basic graphic elements in the same layer can be displayed.

[Brief description of drawings]

FIG. 1 is an external view showing an example of a drawing display processing device according to the present invention.

FIG. 2 is a schematic configuration diagram showing an example of a display processing device according to the first embodiment.

FIG. 3 is an explanatory diagram showing an example of a graphic element.

FIG. 4 is an explanatory diagram for explaining the operation of the first embodiment.

FIG. 5 is an explanatory diagram for explaining the operation of the second embodiment.

FIG. 6 is an explanatory diagram for explaining the operation of the third embodiment.

FIG. 7 is an explanatory diagram for explaining the operation of the fourth embodiment.

FIG. 8 is an explanatory diagram for explaining the operation of the fourth embodiment.

FIG. 9 is an explanatory diagram showing an example of graphic element display information according to the fourth embodiment.

FIG. 10 is an explanatory diagram for explaining the operation of the fourth embodiment.

FIG. 11 is an explanatory diagram for explaining the operation of the fourth embodiment.

FIG. 12 is an explanatory diagram for explaining the operation of the fourth embodiment.

FIG. 13 is a schematic configuration diagram showing an example of a display processing device according to a fifth embodiment.

FIG. 14 is an explanatory diagram for explaining the operation of the fifth embodiment.

FIG. 15 is a flowchart showing an example of a processing procedure of a graphic display processing unit in the fifth embodiment.

FIG. 16 is an explanatory diagram for explaining the operation of the conventional drawing display processing device.

FIG. 17 is an explanatory diagram for explaining the operation of the conventional drawing display processing device.

FIG. 18 is an explanatory diagram for explaining the operation of the conventional drawing display processing device.

[Explanation of symbols]

 1 display device 2 mouse 3 display processing device 11,21 map information storage unit 12,22 element information storage unit 13 display order information storage unit 14,24 graphic display processing unit DD graphic display order information MD graphic data group

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Horiguchi 1st Fujimachi, Hino-shi, Tokyo Inside Fujifacom Control Co., Ltd. (72) Inventor Masaya Ito 1st Fujimachi, Hino-shi, Tokyo Inside Fujifacom Control Co., Ltd.

Claims (4)

[Claims] 1. A drawing display processing apparatus, wherein a plurality of basic graphic elements are displayed for each basic graphic element and a predetermined drawing is displayed on a screen, and a display order is set for each type of the basic graphic element. A drawing display processing apparatus comprising: a display order setting means; and a display control means for displaying the basic graphic element based on the display order set by the display order setting means. 2. A drawing display processing apparatus in which a plurality of basic graphic elements are displayed for each basic graphic element, and a predetermined drawing is displayed on a screen, wherein the basic graphic element is divided into predetermined areas. A drawing display processing device characterized in that it is managed for each basic graphic element included in each area of the drawing. 3. In a drawing display processing device, wherein a plurality of basic graphic elements are displayed for each basic graphic element and a predetermined drawing is displayed on a screen, a display position of a specific basic graphic element is displayed on the drawing. And the relative position information on the screen from the display position of the reference point on the screen are used for management. 4. A drawing display processing device, wherein a plurality of basic graphic elements are displayed for each basic graphic element and a predetermined drawing is displayed on a screen, and the basic graphic elements constituting the drawing are combined in a predetermined combination. Grouping values for identifying each group formed by grouping, a mask value added for each basic graphic element, and a mask value based on a function value of the grouping value and the mask value. Display determination means for determining whether or not the basic graphic element belongs to a group specified by the grouping value, and displaying the basic graphic element only when it is judged to belong to the group. Processing equipment.