JPH0648497B2 - Pattern control device - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a pattern control device for controlling a line type pattern, a plane drawing pattern pattern, etc. in the case of line drawing in the field of graphic processing.

[Background of the Invention]

In a graphic processing apparatus that generates various graphics in a frame memory for display or printing, it is necessary to be able to select a line type such as a solid line or a broken line and a pattern for a filling process. FIG. 1 shows a general graphic processing device, including a graphic control device 10 and a frame memory 1.
1, a pattern memory 12, and a pattern control device 13. The figure controller 10 sends a command to the pattern controller 13 to sequentially generate figures on the frame memory 11 while referring to the patterns stored in the pattern memory 12.

Conventionally, those that store line type patterns and pattern patterns are
Since the control is easy, a unit whose size is fixed to the unit of the power of 2 has been used. That is, for example, in the case of handling 8-bit line type information, the line type information can be easily obtained by counting with a 3-bit counter and selecting 1 bit from the position designated by the counter. Also in the case of a two-dimensional pattern, the vertical and horizontal sizes are similarly set to 2 n.
A method of fixing to the power unit has been used.

Such a method has a drawback in that it cannot handle a line type or a pattern having an arbitrary size as a basic unit.

[Object of the Invention]

An object of the present invention is to provide a pattern control device capable of handling a line-type pattern or a basic unit of a pattern pattern of any size.

[Outline of Invention]

The feature of the present invention is that the memory for storing the pattern, the register for storing the reference position of the pattern, the arithmetic unit for updating the value, the register for storing the reference range of the pattern, and the reference position of the pattern are within the limited range. The purpose of this is to provide a comparator for detecting whether or not the pattern can be repeatedly referred to within a limited range.

Example of Invention

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 shows an embodiment of the present invention, which includes a pattern register 20, a pit selection circuit 21, and a pattern pointer 2.
2, a counter 23, a pattern size register 24, and a coincidence detector 25. The pattern register 20 stores line type pattern information. The pattern pointer 22 indicates the reference position of the pattern, and a count signal is sent to the counter 23 and incremented by 1 each time the pattern is referenced. On the other hand, the output of the pattern pointer 22 and the value preset in the pattern size register 24 are determined by the coincidence detector 2
5, the reset signal is generated for the pattern pointer when the two match. The bit selection circuit 21 sequentially outputs line type patterns as the pattern pointer 22 advances. The output pattern information is referred to when a figure is generated and is used as 0.1 information as it is, or is converted into color information to generate a figure with a predetermined pattern on the frame memory.

FIG. 3 shows an example of the operation in the embodiment of FIG. The 8-bit pattern register 10 has "1110".
The pattern "0 ..." Is stored and "4" is set in the pattern size register 24. In this case,
The information of bit0 to bit4 of the pattern register 20 is repeatedly referred to and output.

As described above, according to this embodiment, it is possible to define a line type pattern having an arbitrary bit length.

FIG. 4 shows another embodiment of the present invention. Zoom X control unit 4
0, coordinate X control unit 41, zoom Y control unit 42, coordinate Y control unit 43, bit selection circuit 44, and pattern memory 45. In this embodiment, two-dimensional pattern information can be controlled, and the same coordinate value can be repeatedly referred independently in the X and Y directions. Further, the moving direction of the coordinate point can be both up and down independently of X and Y. The zoom X control unit 40 includes a ZPX (zoom point X) register 401, a counter 402, a ZSX (zoom start X) register 403,
It comprises a ZEX (zoom end X) register 404, a coincidence detection unit 405, and multiplexers 406, 407, 408. When the count signal in the X direction is input, the counter 4
In 02, the contents of the ZPX register are updated (+1 in the increment mode, -1 in the decrement mode). In the increment mode, the multiplexer 406 is the ZEX register and the multiplexer 407 is the ZEX register.
The SX register is selected. The opposite is true for decrement mode. The coincidence detector 405 compares the ZPX register with the output of the multiplexer 406 and outputs a coincidence signal. This match signal is sent to the multiplexer 40
At 8, the output of the multiplexer 407 is selected. In other cases, the output of the counter 402 is selected. The coincidence signal also serves as a count signal for the coordinate X control unit 41. That is, to summarize the operation of the zoom X control unit 40, in the increment mode, the ZPX register is incremented by +1 to match the ZEX register.
SX will be loaded. In the decrement mode, conversely, the value of the ZPX register matches the value of the ZSX register and then the value of the ZEX register is loaded. The coordinate X control unit 41, the zoom Y control unit 42, and the coordinate Y control unit 43 also perform the same content operation as the zoom X control unit 40. Therefore, the content of PX (point X) is updated by receiving the count signal from the zoom X control unit 40, and S
Repeatedly count within the range of X (start X) and EX (end X). ZPY (zoom point Y) is Z
SY (zoom start Y) and ZEY (zoom end Y)
Within the range of, PY (point Y) is SY (start Y)
And EY (end Y) are counted respectively. The contents of PY are read as corresponding 1-word data as an address of the pattern memory 45, and the bit selection circuit 4
The information of the bit position for which PX is designated in 4 is output as pattern information.

FIG. 5 shows an operation example of the embodiment shown in FIG.
(a) shows an example of line drawing, and (b) of the same figure shows an example of surface drawing. In the example of the figure, the pattern output is shown by being developed into two kinds of color information. In the case of line drawing, the bit number of the word specified by PY in the pattern memory is SX.
Information within the range of EX is referred to as line type information. In the case of surface drawing, the area surrounded by SX, SY, and EX, EY is referred to as a pattern pattern.

As described above, according to this embodiment, in any of the line drawing and the surface drawing, an arbitrary size portion at an arbitrary position of the pattern memory can be used as the line type pattern or the pattern pattern, and the X direction and the Y direction. The number of repetitions of the same coordinate point reference can be set independently. Therefore, a plurality of various patterns can be efficiently stored in the pattern memory. Further, in the present embodiment, since the pattern point can be both incremented and decremented, it is possible to move in correspondence with any movement of the drawing point. Therefore, no discontinuity occurs in the development of the pattern even in the case of a complicated filling process.

〔The invention's effect〕

According to the present invention, there is an effect that a line type pattern or a pattern pattern having an arbitrary size can be handled.

[Brief description of drawings]

FIG. 1 is a block diagram of the graphic processing apparatus, FIG. 2 is a block diagram of one embodiment of the present invention, FIG. 3 is an operation explanatory diagram of one embodiment of FIG. 2, and FIG. 4 is another of the present invention. Block diagram of the embodiment,
FIG. 5 is an explanatory diagram of the operation of FIG. 24: pattern size register, 25: coincidence detector.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hisashi Kajiwara 3-2-1, Sachimachi, Hitachi City, Ibaraki Prefecture Hitachi Engineering Co., Ltd. (56) Reference JP-A-58-146961 (JP, A) Kai 56-143484 (JP, A) JP-A-57-11383 (JP, A)

Claims (9)

[Claims] 1. A pattern control device for reading pattern information and generating graphic information according to the content of the pattern information, for storing the pattern information, and for reading the pattern information from the storage means. Pattern size setting means for storing a value indicating the end position of the pattern, pointer means for outputting position information for reading the pattern information from the storage means within the range set by the pattern size setting means, and the pointer means. Counter means for updating the position information indicated by, and detection means for setting the position information of the pointer means to a predetermined value if the position information indicated by the pointer means matches the value indicating the end position. A pattern for reading the pattern information from the storage means based on the position information indicated by the pointer means. Pattern control apparatus characterized by comprising an information reading means. 2. A pattern control device for reading pattern information and generating graphic information according to the content of the pattern information, wherein: storage means for storing the pattern information; and reading the pattern information from the storage means. Pattern size setting means for storing a value indicating a start position and a value indicating an end position, and pointer means for outputting position information for reading the pattern information from the storage means within the range set by the pattern size setting means. And counter means for updating the position information indicated by the pointer means, and if the position information indicated by the pointer means matches the value indicating the end position in the increment mode, the position information of the pointer means Set to the value that indicates the start position, and in decrement mode, match the value that indicates the above start position. For example, it comprises a detection means for setting the position information of the pointer means to a value indicating the end position, and a pattern information reading means for reading the pattern information from the storage means based on the position information indicated by the pointer means. A pattern control device characterized by the above. 3. A storage means having a plurality of pattern information consisting of a plurality of bits, and a value storing a value indicating a first start position and a value indicating a first end position for reading the pattern information from the storage means. A first pattern size setting means, a first pointer means for outputting first position information for reading the pattern information from the storage means within a range set by the first pattern size setting means, and The first counter means for updating the first position information indicated by the first pointer means and the first position information indicated by the first pointer means are the first end position in the increment mode. Position information of the first pointer means is set to a value indicating the first start position, and in the decrement mode, the position information is matched with the value indicating the first start position. If there is a match, the position information of the first pointer means is set to a value indicating the first end position, and the first position information output by the first pointer means is read. Second pattern size setting means for storing a value indicating a second start position and a value indicating a second end position for reading the predetermined pattern information from the issued pattern information; and the second pattern size setting. A second pointer means for outputting the second position information for reading the pattern information from the storage means within the range set by the means, and the second position information indicated by the second pointer means. If the second counter information to be updated and the second position information indicated by the second pointer means match the value indicating the second end position in the increment mode, the second pointer The position information of the inter-means is set to a value indicating the second start position, and in decrement mode, if the position information of the second pointer means coincides with the value indicating the second start position, the position information of the second pointer means is changed to the second end Second storage means for setting a value indicating a position, the first position information indicated by the first pointer means and the second position information indicated by the second pointer means. And a pattern information reading means for reading the pattern information from the means. 4. The storage device according to claim 3, wherein the value indicating the first start position, the value indicating the first end position, and the first position information are stored in the storage means. Position information based on the address of the pattern information, the value indicating the second start position, the value indicating the second end position, and the second position information are position information based on the bit position of the pattern information. The pattern control device according to claim 1. 5. A pattern control device for reading pattern information and generating graphic information according to the content of the pattern information, wherein a memory means for storing the pattern information and the pattern information read from the memory means are enlarged. And a first pattern size setting means for storing an initial value and a final value indicating a magnification, and magnification information in a range indicated by the initial value and the final value set by the first pattern size setting means. First to do
Pointer means, the first counter means for updating the magnification information indicated by the first pointer means, and the magnification information indicated by the first pointer means are the first pattern size in the increment mode. When it coincides with the final value set by the setting means, a coincidence output signal is output, the magnification information of the first pointer means is set to the initial value, and the decrement mode is set by the first pattern size setting means. When it coincides with the above-mentioned initial value, a coincidence signal is output, and first detection means for setting the magnification information of the first pointer means to the final value, and reading for reading the pattern information from the storage means. Second pattern size setting means for storing a value indicating a start position and a value indicating a read end position, and the second pattern size setting means Second pointer means for outputting position information for reading the pattern information from the storage means within the range set by the stage, and the second pointer means indicated by the coincidence signal from the first detection means. Position information of the second pointer means if the position information indicated by the second counter means for updating the present position information and the second pointer means coincides with the value indicating the end position in the increment mode. To a value indicating the start position, and second detection means for setting the position information of the second pointer means to a value indicating the end position if the value indicates the start position in the decrement mode. Pattern information reading means for reading the pattern information from the storage means based on the position information indicated by the second pointer means. Pattern control apparatus according to claim and. 6. The value according to claim 5, wherein the value indicating the read start position, the value indicating the read end position, and the read position information are the addresses of the pattern information held in the storage means. A pattern control device characterized in that the position information is based on the position information. 7. The pattern according to claim 5 or 6, wherein the value indicating the read start position, the value indicating the read end position and the read position information are held in the storage means. A pattern control device, which is position information based on a bit position of information. 8. A storage means having a plurality of pattern information consisting of a plurality of bits, and a first initial value and a first final value indicating a first magnification for enlarging the pattern information read from the storage means. And a first pattern size setting means for outputting first magnification information within a range indicated by the first initial value and the first final value set by the first pattern size setting means. In the increment mode, the pointer means, the first counter means for updating the first magnification information indicated by the first pointer means, and the first magnification information indicated by the first pointer means When it matches the first final value, a first match output signal is output, the first magnification information is set to the first initial value, and when it matches the first initial value in the decrement mode, 1 match First detection means for outputting an output signal and setting the first magnification information to the first final value; a value indicating a first start position for reading the pattern information from the storage means; Second pattern size setting means for storing a value indicating the end position of 1, and first position information for reading the pattern information from the storage means within the range set by the second pattern size setting means. And second counter means for updating the first position information indicated by the second pointer means by a coincidence signal from the first detecting means, and the second pointer means for outputting If the first position information indicated by the pointer means coincides with the value indicating the first end position in the increment mode, the first position information is set to the value indicating the first start position, Decrime In the input mode, if the first position information matches the value indicating the first start position, the first position information is set to a value indicating the first end position and output by the second pointer means. A third pattern size setting for storing a second initial value and a second final value indicating a magnification for reading out and enlarging predetermined pattern information from the pattern information read out according to the above-described first position information. Means, a third pointer means for outputting second magnification information within a range indicated by the second initial value and the second final value set by the third pattern size setting means, and the third The third counter means for updating the second magnification information indicated by the pointer means and the second magnification information indicated by the third pointer means match the second final value in the increment mode. Then , A second match output signal is output, the second magnification information is set to the second initial value, and in the decrement mode, when the second match value is matched with the second initial value, a second match signal is output, A third detection means for setting the second magnification information to the second final value, and a predetermined pattern from the pattern information read by the first position information output by the second pointer means. A fourth pattern size setting means for storing a value indicating a second start position and a value indicating a second end position for reading information; and within the range set by the fourth pattern size setting means. Second pointer means for outputting second position information for reading the pattern information from the storage means, and fourth counter means for updating the second position information indicated by the fourth pointer means, The above If the second position information indicated by the pointer means of No. 4 coincides with the value indicating the second end position in the increment mode, the second position information is set to the value indicating the second start position. However, in the decrement mode, if it coincides with the value indicating the second start position, the fourth detection means for setting the value indicating the second end position and the first pointer indicated by the second pointer means. Pattern information reading means for reading the pattern information from the storage means on the basis of the position information of the above and the second position information indicated by the fourth pointer means. 9. The storage device according to claim 8, wherein the value indicating the first start position, the value indicating the first end position, and the first position information are held in the storage means. Position information based on the address of the pattern information, the value indicating the second start position, the value indicating the second end position, and the second position information are position information based on the bit position of the pattern information. The pattern control device according to claim 1.