JPH10326169A - Information processing apparatus, display control method, and recording medium recording display control program - Google Patents

Abstract

(57) [Abstract] [Problem] To change the display size of image data according to the resolution of a display screen and display the image data in a size that can be recognized by a user. The system recognizes the resolution of a display screen of a display device and, when data is acquired from a server, recognizes the resolution of image data present in the data. Based on the resolution of this display screen and the resolution of the image data,
The resolution of the image data is converted into a size corresponding to the resolution of the display screen, and the converted image data is displayed on the display device 16.
Is displayed on the display screen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing apparatus such as a personal computer, and more particularly to an information processing apparatus, display control method, and display control method suitable for displaying low-resolution data on a high-resolution display device. The present invention relates to a recording medium on which a display control program is recorded.

[0002]

2. Description of the Related Art Conventionally, WWW (world wide)
In the web) browser, data is expanded at a specified size of 1: 1. Therefore, for example, 640 × 480
Dot VGA (video graphics ar
ray) size is 1600 × 12
In a high-resolution display device of 00 dots, about 4
It will be displayed in about one-half. This is due to the higher resolution dot pitch being narrower than the lower resolution. That is, a display screen of 1600 × 1200 dots has a resolution that is about 2.5 times that of a display screen of 640 × 480 dots.

As described above, in the WWW browser, when the environment used by the receiver and the environment used by the transmitting side are the same (when the screen resolution and the screen display color are the same), the user can see what looks good. it can. However, when data created by a device with a low resolution is displayed using a display device with a high resolution, the size is displayed at a quarter size on a high-definition screen with twice the resolution. For this reason, image data such as a map well represented on the WWW cannot be recognized at all.

[0004]

As described above, conventionally, when low-resolution data is displayed on a high-resolution display device, the display area becomes very small. In the WWW data, information such as a map is often created as image data, so that it is often impossible to recognize what is written at the time of display.

[0005] In the future, it is expected that many high-resolution machines and low-resolution machines will coexist, and such a problem tends to become more serious. The present invention has been made in view of the above points, and has an information processing apparatus, a display control method, and an information processing apparatus that can change a display size of image data according to a resolution of a display screen and display the image data in a size recognizable by a user. It is an object to provide a recording medium on which a display control program is recorded.

[0006]

[Means for Solving the Problems]

(1) An information processing apparatus according to the present invention includes: first resolution recognizing means for recognizing a resolution of a display screen; image detecting means for detecting image data from data to be displayed; Second resolution recognizing means for recognizing the resolution of the image data; and a resolution of the image data recognized by the second resolution recognizing means and a resolution of the display screen recognized by the first resolution recognizing means. Magnification calculating means for calculating a display magnification for the image data based on the image data; resolution converting means for converting the resolution of the image data based on the display magnification obtained by the magnification calculating means; Display means for displaying the image data on the display screen (claim 1).

According to such a configuration, when displaying the image data, the display magnification for the image data is obtained based on the resolution of the image data and the resolution of the display screen, and the resolution of the image data is determined by the display magnification. Is converted. By such resolution conversion, for example, even low-resolution image data is displayed in a size corresponding to the display screen.

Further, in the configuration of the above (1), there is provided a size designating means for designating a display size, and the magnification calculating means is configured to display the image data on the basis of the display size designated by the size designating means. A magnification is obtained (claim 2).

According to such a configuration, the user can arbitrarily specify a magnification, for example, an actual size (actual magnification), a magnification based on the width of the display screen, and a magnification based on the height. it can.

In the configuration (1), when a plurality of image data exist in the display target data,
Image position recognizing means for recognizing the position information, and a display for obtaining a sum in the width direction and a maximum value in the height direction of each of the image data as a display size based on the position information recognized by the image position recognizing means. A size calculating unit, wherein the magnification calculating unit obtains a display magnification for each of the image data based on the display size obtained by the display size calculating unit (claim 3).

According to such a configuration, even when a plurality of image data are present on the same line, the respective image data are displayed so as to fit within the display screen at a magnification in consideration of their arrangement. be able to.

(2) An information processing apparatus according to the present invention provides a data request unit for requesting data to be displayed from a server computer, and receives display target data requested by the data request unit from the server computer. A data receiving unit, and a first unit for recognizing the resolution of the display screen
Resolution recognition means, image detection means for detecting image data from display target data received by the data reception means, and second resolution recognition means for recognizing the resolution of the image data detected by the image detection means When,
Magnification calculation means for calculating a display magnification for the image data based on the resolution of the image data recognized by the second resolution recognition means and the resolution of the display screen recognized by the first resolution recognition means; Resolution conversion means for converting the resolution of the image data based on the display magnification obtained by the magnification calculation means, and display means for displaying the image data converted by the resolution conversion means on the display screen. (Chart 4).

According to such a configuration, when displaying the image data obtained from the server computer, the display magnification for the image data is obtained based on the resolution of the image data and the resolution of the display screen. The resolution of the image data is converted. By such resolution conversion, for example, even low-resolution image data is displayed in a size corresponding to the display screen.

In the configuration of the above (2), there is provided a size designating means for designating a display size, and the magnification calculating means is configured to display the image data on the basis of the display size designated by the size designating means. The magnification is obtained (claim 5).

According to this configuration, the user can arbitrarily specify the magnification, for example, the actual size (actual magnification), the magnification based on the width of the display screen, and the magnification based on the height. it can.

In the configuration (2), when a plurality of image data exist in the display target data,
An image position recognizing means for recognizing the position information, and a sum value in a width direction and a maximum value in a height direction of each of the image data are set as display sizes based on the position information recognized by the image position recognizing means. And a display size calculating means for obtaining the display magnification for each of the image data based on the display size obtained by the display size calculating means. .

According to such a configuration, even when a plurality of image data are present on the same line, the respective image data are displayed at a magnification in consideration of their arrangement so as to fit within the display screen. be able to.

In the configuration (2), when the image data is linked to other data, coordinate information indicating a clickable area in the image data and link management means for managing the link destination are provided. With the resolution conversion of the image data by the resolution conversion means, coordinate correction means for correcting the coordinate information managed by the link management means, based on the coordinate information corrected by the coordinate correction means, And link data requesting means for detecting the presence of an event in the clickable area and requesting data of a link destination.

According to such a configuration, when the image data is linked to other data, the coordinate information indicating the clickable area is corrected with the resolution conversion of the image data. Thereby, based on the coordinate information after the correction, it is possible to detect that there is an event in the clickable area and request the data of the link destination.

In the configuration of (2), the storage means for storing the image data converted by the resolution conversion means, and the storage means, when the image data is requested again as display target data, Image search means for searching the image data, the display means,
The image data searched by the image search means is displayed (claim 8).

According to such a configuration, the image data after the resolution conversion is stored in a storage means such as a magnetic disk device, so that when the same image data is requested again, the image data is transmitted from the server computer. Even if the data is not obtained, it can be obtained directly from the storage means. In this case, since the storage means stores the image data after the resolution conversion, it is not necessary to perform the resolution conversion.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram illustrating a configuration of an information processing apparatus according to an embodiment of the present invention. 10 in the figure
Is an information processing apparatus according to the present invention, and includes a workstation, a personal computer, a portable information device, and the like on which a general WWW browser or the like is mounted. Further, the present apparatus is realized by a computer which reads a program recorded on a recording medium such as a magnetic disk and the operation of which is controlled by the program.

As shown in FIG. 1, the information processing apparatus 10
CPU 11, RAM 12, ROM 13, I / O controller 14, storage device 15, display device 16, VRAM1
7, pointing device 18, LAN device 19
Is configured.

The CPU 11 controls the entire apparatus, and executes various processes by activating a program according to an input instruction. Here, the data display processing shown in FIGS. 10 to 16 is executed.

A RAM (volatile memory) 12 is used as a temporary storage area for program data. The RAM 12 is provided with an area for temporarily expanding data to be displayed on the display device 16 and an area for storing various tables required for display processing.

The ROM 13 stores various program data, font data, dictionary data, and the like. I / O
The controller 14 controls various I / O devices.

The storage device 15 is a large-capacity external storage device such as a magnetic disk device, and serves as a temporary storage location for data read from the server 21 or the like. The storage device 15 is also used as a cache memory when the network 20 is connected.

The display device 16 is, for example, a CRT (Cathode
It comprises a Ray Tube) and an LCD (Liquid Crystal Display), and displays data transferred from the server 21 and the like. A VRAM 17 is connected to the display device 16. The VRAM 17 is a memory for expanding data to be displayed on the display device 16.

The pointing device 18 is composed of, for example, a mouse, a tablet, or the like, and is used for inputting data and giving instructions. The LAN device 19 connects with another information processing device on the network 20. Specifically, it is a modem, a LAN card, or the like.

The network 20 physically connects the information processing apparatuses. The server 21 is configured by a device having the same form as the information processing apparatus 10, is physically coupled to the network 20, and transfers data in response to a request from the information processing apparatus 10 as a client. I do.

The RAM 12 includes a display table 31, an image size table 32, an image magnification parameter 33, a user-specified size table 34, and a line information management table 35 as various tables necessary for the data display processing of the present invention. Is provided. A clickable management table 36 described later is also provided in the RAM 12.

FIG. 2 shows a display table 3 in the embodiment.
1 is a diagram showing a configuration of FIG. The display table 31 is a table for managing the resolution of the present apparatus, and
6 is composed of the resolution (display size) of the display screen and an address indicating the storage location of the image size table 32. If no image data exists in the display target data, "NULL" is entered in this address.

The resolution indicates the fineness of the display, and is indicated by the number of dots in the width direction and the height direction of one screen. This resolution differs depending on the model. For example, VGA
Has a resolution of 640 × 480 dots.

FIG. 3 is a diagram showing the structure of the image size table 32 in the embodiment. Image size table 3
Reference numeral 2 denotes a table for managing the resolution of each image data, which is composed of an image file name, a resolution (display size) of the image data, and a pointer to a magnification parameter table 33.

When a plurality of image data exist on the same line, the line No. Is also included in the image size table 32. FIG. 4 is a diagram showing a configuration of the image magnification parameter table 33 in the embodiment.
The magnification parameter table 33 is a table for managing a display magnification for each image data, and includes a magnification in a height direction and a magnification in a width direction.

FIG. 5 is a diagram showing the configuration of the user-specified size table 34 in the embodiment. The user-specified size table 34 is a table for managing the display size specified by the user, and is composed of specified sizes indicated by 0, 1, and 2. The designated size 0 indicates the actual size (actual size). The designated size 1 indicates a magnification based on the width of the display screen, and the designated size 2 indicates a magnification based on the height of the display screen.

FIG. 6 is a diagram showing the configuration of the row information management table 35 in the embodiment. Row information management table 3
Reference numeral 5 denotes a table for managing image data of the same line when a plurality of image data exist, and is a sum of the line number added to the image size table 32 and the width direction of each image data on the same line. And the MAX value in the height direction.

FIG. 7 is a view showing a display example of WWW in the embodiment. In the figure, reference numeral 41 denotes a display area in which data transferred from the server 21 is displayed.

The information processing device 10 makes a data request to the server 21 on the network 20. In the WWW, data is requested using the http protocol. At this time, data requested from the information processing device 10 (client) is configured in a specific format called an HTML document.

An HTML document is composed of a format specification and text surrounded by “<” and “>” called tags. If the connection between the devices is normal, the server 21 transfers the requested data to the information processing device 10. The transferred data is text data such as characters or binary data such as images.

Here, in the present invention, low-resolution image data normally displayed as shown in FIG.
The display is performed according to the resolution of the display screen (the display size of the application). In this case, for example, as shown in FIG.
Assuming a resolution of 40 × 480 dots, 32
Image data created by an apparatus having a resolution of 0 × 240 dots will be displayed twice as large.

In the WWW, a plurality of image data may be arranged on the same line, but in such a case, it cannot be simply adjusted to the screen size.
The present invention is characterized in that resolution conversion is performed in such a case in consideration of the interval between other image data.

In the WWW, clear data (data to which a link can be allocated on image data) as shown in FIG. 9 can be displayed. When the resolution is changed, a deviation occurs in the coordinate position of the clearable data. The present invention is characterized in that such a deviation is corrected together with the resolution conversion.

To obtain data from the server 21, it is necessary to connect to the network 20 and have the server 21 transfer the data. In this case, the data transfer speed changes depending on the line speed and the degree of congestion. Therefore, in the present invention, the image data after the resolution conversion is stored in the cache memory (storage device 15),
When the same image data is needed again, the image data is directly obtained from the cache memory without passing through the network 20.

Next, before describing the operation of the present apparatus, the features of the present invention will be divided into the following items (1) to (6) to facilitate understanding. deep. (1) Display Matching to Resolution of Display Screen Here, it is assumed that data to be displayed is already stored in the storage device 15 of the information processing device 10 via, for example, a storage medium. The display table 31 provided in the RAM 12 stores the resolution of the display device 16 (usually, the size of the width and height of the display area 41 determined by the driver program or the application that connects the hardware and the application). Shall be.

The information processing device 10 temporarily stores the display target data read from the storage device 15 in the RAM 12. If image data exists in the display target data, the resolution of the image data (display size of width and height)
Read. In this case, the image data is usually added with information on the image size (the number of dots), the display color, and the color pallet. The image size is read from this information and set in the image size table 32.

Next, using the screen resolution stored in the display table 31 and the image resolution stored in the image size table 32, a display magnification for the image data is calculated. First, a magnification corresponding to the width (width) of the display screen is obtained. If the height (vertical width) of the image data exceeds the screen at this magnification, a magnification corresponding to the height (width) of the display screen is obtained. In this way, the optimum magnification is calculated, and the calculation result is stored in the magnification parameter table 33.

Based on the magnification stored in the magnification parameter table 33, the resolution of the image data is converted into a size corresponding to the resolution of the display screen. At this time, in enlarging the image data, a process of interpolating between dots of the image data with the same data is performed. The image data after the resolution conversion is developed in the VRAM 17 and displayed on the display device 16.

If there is another object (character string) in the HTML document, it is expanded and displayed, but its position needs to be changed so as not to overlap the converted image data. .

(2) Display According to User-Specified Size The screen size specified by the user is stored in the user-specified size table 34, and the resolution (size) of the image data is changed according to the specified size.

In this case, the user designates whether to display the image data to be displayed based on the width (width) or height (length) of the display screen or to display the image data in the actual size. The specified data is stored in the user-specified image size table 35.

For example, "0 = actual size", "1 = based on width", and "2 = based on height" are set. When displaying, the designated size is read from the user designated size table 34, and the resolution (size) of the image data is converted according to the designated size.

(3) Display of a Plurality of Image Data It is determined whether or not a plurality of image data exists in the received data (if the tag “img” is on the same line, a plurality of image data exist). ).

When a plurality of image data exist, their coordinate positions and sizes are determined, and the image size table 3
Register to 2. In this case, in the image size table 32, a line No. indicating that it is arranged on the same line Is stored, and this is managed in the row information management table 35.

Here, the image size for displaying a plurality of image data is calculated. Simply, it is determined whether or not the sum of the height and width of the image information 1 and the sum of the height and width of the image information 2 match the display size. Display screen size (width) =
In the case of N × (width of image information 1 + width of image information 2), each image is multiplied by N.

At the time of actual display, the size of the display screen is adjusted by using the N times. Thus, a plurality of pieces of image data can be displayed after being changed to an appropriate size according to the display device.

(4) Display of Image Data Transferred from Server to Client The information processing apparatus 10
Request for data. Data corresponding to this request is transferred from the server 21 to the information processing device 10.

When receiving the data (HTML document) from the server 21, the information processing apparatus 10 temporarily stores the data in the RAM 12. Then, the HTML document is analyzed to determine whether or not image data designated for display exists. In an HTML document, a document (file) includes a tag “img” for specifying an image, and the data specified there is an image file.

If the requested data has a designation to display image data (if the tag “img” of the HTML document is included), the resolution (size) of the image data is read. In this case, the image data usually includes
Information on the image size (number of dots), display color, and color palette is added. The image size is read from this information and set in the image size table 32.

Next, using the screen resolution stored in the display table 31 and the image resolution stored in the image size table 32, a display magnification for the image data is calculated. First, a magnification corresponding to the width (width) of the display screen is obtained. If the height (vertical width) of the image data exceeds the display screen at this magnification, a magnification corresponding to the height (width) of the display screen is obtained. In this way, the optimum magnification is calculated, and the calculation result is stored in the magnification parameter table 33.

Based on the magnification stored in the magnification parameter table 33, the resolution of the image data is converted into a size corresponding to the resolution of the display screen. At this time, in enlarging the image data, a process of interpolating between dots of the image data with the same data is performed. The image data after the resolution conversion is developed in the VRAM 17 and displayed on the display device 16.

If another object (character string) exists in the HTML document, the object is expanded and displayed, but its position needs to be changed so as not to overlap with the converted image data. .

(5) Display of Clickable Data In an HTML document, when data is linked, a tag name “AREA SHAPE” is used. HTML whether or not this tag is used
Determine when a document is read.

Normally, the image data has the origin (0, 0) at the upper left as shown in FIG. As a designation method, as shown in FIG. 9B, <AREA SHAPE = “RECT” COORDS =
X1, Y1, X2, Y2 "HREF =" test. ht
A description such as "ml"> is used.

In this example, a square (SHAPE = “R”) defined by coordinates (X1, Y1) and coordinates (X2, Y2)
When the user clicks the range of “ECT”) with the pointing device 18, an HTML document having a file name “test.html” is acquired from the server. In addition to RECT (square), CIRCLE
(Circle) and SHAPE (polygon).

At the time of display, a clickable management table 36 as shown in FIG. The clickable management table 36 stores the HAPE of the clickable area, its coordinate value, and information indicating the link destination.

When an event of coordinate data is generated by the operation of the pointing device 18 such as a mouse or a pen by the user, it is determined whether or not the event exists in the coordinates managed by the clickable management table 36. . If the event exists in the coordinates,
A request is made to the server 21 for the linked file.

Here, when the resolution (display size) of the image data is changed on the client side, the above-described coordinate position of the clearable data is shifted. Therefore, the clickable coordinate values in the clickable management table 36 are corrected based on the magnification stored in the magnification parameter table 33. For example, if the image data is enlarged twice, the coordinate value (X
The information of (1, Y1) is (2 × X1, 2 × Y1).

(6) Display Utilizing Cache Function The storage device 15 is used as a cache memory. That is, after displaying the image data based on the magnification stored in the magnification parameter table 33, the image data is stored in the storage device 15 in the size at that time. Then, when displaying the same image data again, the same image data is read not from the server 21 but from the storage device 15.

Next, the operation of this embodiment will be described with reference to FIGS. FIG. 10 to FIG. 16 are flowcharts for explaining the operation of the data display processing in the embodiment. Here, the description will be made on the assumption that the information processing apparatus 10 is a client and the information processing apparatus 10 acquires data from the server 21 on the network 20 and displays the data. The numbers (1-6) in parentheses in the figure correspond to the numbers of the above items.

The information processing apparatus 10 connects to the server 21 and requests data (HTML document) (step S11). When the connection with the server 21 is successful (Yes in step S12), the server 21 transfers the data to the network 20, and the information processing apparatus 10 receives the data by the LAN device 19 (step S13). The information processing device 10 temporarily stores the received data in the RAM 12 (Step S14).

Here, the display device 16 is stored in the RAM 12 in advance.
A display table 31 storing the resolution (display size) of the display screen is provided. When the information processing apparatus 10 receives data, the CPU 11 in the information processing apparatus 10 reads the screen resolution (display) from the display table 31. The size is read (step S15).

When data is received, the CPU 11
Determines whether or not image data exists in the received data.
The determination is made based on the tag of the TML document (step S1).
6). If image data exists (step S16
Yes), the CPU 11 determines whether the image data has a clickable designation (linked data) (step S17). As a result, when there is no clickable designation (No in step S17), the CPU 11 executes the following process A.

That is, the CPU 11 detects the resolution (display size) of the image data in the received data, and
It is stored in the image size table 32 on the AM 12 (step S18).

Here, when a plurality of image data do not exist on the same line (No in step S19), and when the user does not specify the magnification (N in step S20).
o) First, the CPU 11 refers to the display table 31 and the image size table 32 to
The magnification in the width direction and the height direction for the image data is determined in accordance with the width (width) of the display screen (step S2).
1).

When the height direction of the display screen is over at this magnification (No in step S22), the width direction and the height of the image data are adjusted according to the height (vertical width) of the display screen. The magnification in the direction is obtained (step S23).

As described above, when an optimum magnification (width and height) that fits on the display screen of the display device 16 is obtained, the CP
U11 stores the magnification in the magnification parameter table 33 on the RAM 12 (step S24).

In this case, when the width of the screen resolution is GW, the height is GH, the width of the image resolution is iW, and the height is iH, the magnifications NW and NH in the width direction and the height direction with respect to the image data are as follows. It is represented by the following equation.

NW = GW / iW NH = GH / iH In order to match the width (width) of the display screen, the value of the magnification NW is set in the magnification parameter table 33. In order to match the height (vertical width) of the display screen, the value of the magnification NH is set in the magnification parameter table 33.

On the other hand, when the user specifies the magnification (Yes in step S20), the CPU 11
The size specified by the user is confirmed with reference to the user-specified size table 34 on the AM 12, and the magnification for the image data is obtained according to the specified size (step S25).

For example, when “0” is stored in the user-specified size table 34 as the specified size, the size is set to the actual size (actual size). Also, as the specified size, "1"
Is stored in the user-specified size table 34, a magnification (NW) based on the width of the display screen is obtained,
When “2” is stored in the user-specified size table 34, a magnification (NH) based on the height of the display screen is obtained.

When the magnification (width and height) according to the user-specified size is obtained in this way, the CPU 11 stores the magnification in the magnification parameter table 33 on the RAM 12 (step S24).

Next, the CPU 11 converts the resolution (display size) of the image data with the magnification stored in the magnification parameter table 33 (step S26), and develops the converted image data in the VRAM 17 (step S26).
27). When converting low-resolution image data to high-resolution, the image data is enlarged to fit the display screen. At this time, the same data is used to interpolate dots between image data dots. Must be performed.

If data (character data or the like) other than image data is included in the received data, the data is also developed in the VRAM 17 (step S27). In addition,
In the case where the image data and other data overlap due to the resolution conversion of the image data, it is necessary to take measures such as changing the display position of the other data so as not to overlap the image data.

As described above, when the data to be displayed is VR
When developed on the AM 17, the CPU 11
7 is displayed on the display screen of the display device 16 (step S29). In this case, since the image data has been converted to a size corresponding to the resolution of the display screen, even if the image data created by the server 21 has a low resolution, for example, the image data can be displayed large.

After the display, the CPU 11 stores the data displayed on the display device 16 in the cache area of the storage device 15 and prepares for the next display (step S30). If a plurality of pieces of image data exist on the same line in step S19, the CPU 11 stores the line number in the image size table 32. Is set (step S31), the same line No. is set. And the sum of the widths of the respective image data is obtained (step S32), and the height MAX of each image data is obtained (step S33). When the sum of the width and the height MAX of each image data is obtained in this way, the CPU 11 stores the value in the information management table 35 (step S34).

For example, two images 1 (width W1 and height H1)
) And image 2 (width W2, height H2) are on the same line, and if H1> H2, "W1 + W2" is set as the width information in the row information management table 35, and the height information is set as the height information. "H2" will be set.

The CPU 11 determines the line information management table 3
The magnification (width, height) for each image data is obtained based on the width and height information stored in step 5 (step S3).
5). That is, an optimum magnification (width, height) for each image data to fit on the display screen is obtained.

Thereafter, the value of this magnification is stored in the magnification parameter table 33 (step S24), and by executing the processing of steps S26 to S30, each image data is converted by the magnification stored in the magnification parameter table 33. And displays the image data after the display.
No. 5 in the cache area to prepare for the next display.

If no image data is present in the received data in step S16, the process jumps to step S28, and data other than the image data is transferred to the VRA.
After the data has been expanded to M17, the data is displayed (step S29) and stored in the cache area for the next display (step S30).

If the image data has a clickable designation (linked data) in step S17, the CPU 11 first executes the processing A (step S36) and then stores the image data in the RAM 12. A clickable management table 36 is created.
The clickable management table 36 stores the SHAPE of the clickable portion, its coordinate value, and information on the link destination.

Here, the CPU 11 corrects the coordinate values in the clickable management table 36 based on the magnification stored in the magnification parameter table 33 (step S3).
8). This is because if the resolution (display size) of the image data is changed on the client side, the coordinate position of the clearable data will be shifted. Therefore, the clickable coordinate values in the clickable management table 36 are corrected based on the magnification stored in the magnification parameter table 33.

For example, if the image data is
When the image is enlarged twice, the information of the coordinate values (X1, Y1) of the clickable area in the image data is (2 ×
X1, X2 * Y1).

When the image data is displayed at the magnification stored in the magnification parameter table 33 and there is an event by the pointing device 18, the CP
U11 reads the event (coordinate position) (step S39) and determines whether or not it is in the clickable area based on the coordinate value (corrected value after correction) stored in the clickable management table 36 (step S39). S4
0).

As a result, if it is within the clickable area (Yes in step S40), the CPU 11 reads the link destination from the clickable management table 36 (step S41) and requests the server 21 for the data of the link destination. (Step S42).

When displaying the same data, the CPU
No. 11 determines whether the data exists in the cache area of the RAM 12 (step S43). As a result, if it exists in the cache area (Y in step S43)
es) After reading the data directly from the cache area without going through the server 21 (step S44), the CPU 11 expands the data in the VRAM 17 (step S45) and displays it on the display screen of the display device 16. (Step S46). In this case, since the image data is stored in the cache area with the resolution converted, it is not necessary to perform the resolution conversion again.

In the above embodiment, it is assumed that low-resolution image data is displayed on a high-resolution display device. However, the reverse is true, that is, high-resolution image data is displayed on a low-resolution display device. In this case, the image data can be reduced at a magnification that does not protrude from the display screen. In this case, it is necessary to perform a process such as thinning out the number of dots of the image data at the time of reduction.

Further, the method described in the above-described embodiment includes programs that can be executed by a computer, such as a magnetic disk (floppy disk, hard disk, etc.), an optical disk (CD-ROM,
It is also possible to write the data on a recording medium such as a DVD or a semiconductor memory and apply it to various devices, or to transmit it via a communication medium and apply it to various devices. A computer that realizes the present apparatus reads the program recorded on the recording medium, and executes the above-described processing by controlling the operation of the program.

[0099]

As described above, in the WWW browser, consistency between devices is not ensured between the information provider and the information receiver. In particular, in an HTML document that uses a lot of image data, the appearance and appearance may be poor depending on the receiving device, and the environment for reading the document may not be provided. These causes are because the resolution (the number of dots forming the image) is fixed in the image data and is irrelevant to the device that displays them. For this reason, when high-resolution image data is displayed on a low-resolution device, there is a problem that the image data protrudes from the display screen, and in the opposite case, the image data is displayed extremely small.

In the present invention, since the display size of the image data is changed according to the resolution of the display screen, for example, even low-resolution image data can be displayed in a size corresponding to the display screen. Thus, even when a fine image such as a map is sent, the contents can be recognized.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an information processing apparatus according to an embodiment of the present invention.

FIG. 2 is an exemplary view showing the configuration of a display table in the embodiment.

FIG. 3 is an exemplary view showing the configuration of an image size table in the embodiment.

FIG. 4 is a diagram showing a configuration of an image magnification parameter table in the embodiment.

FIG. 5 is an exemplary view showing the configuration of a user-specified size table according to the embodiment;

FIG. 6 is an exemplary view showing the configuration of a row information management table in the embodiment.

FIG. 7 is an exemplary view showing a display example of WWW in the embodiment.

FIG. 8 is an exemplary view for explaining resolution conversion in the embodiment.

FIG. 9 is an exemplary view for explaining clickable data in the embodiment.

FIG. 10 is an exemplary flowchart for explaining the operation of data display processing in the embodiment.

FIG. 11 is an exemplary flowchart for explaining the operation of data display processing in the embodiment.

FIG. 12 is an exemplary flowchart for explaining the operation of data display processing in the embodiment.

FIG. 13 is an exemplary flowchart for explaining the operation of data display processing in the embodiment.

FIG. 14 is an exemplary flowchart for explaining the operation of data display processing in the embodiment.

FIG. 15 is an exemplary flowchart for explaining the operation of data display processing in the embodiment.

FIG. 16 is an exemplary flowchart for explaining the operation of data display processing in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Information processing apparatus 11 ... CPU 12 ... RAM 13 ... ROM 14 ... I / O controller 15 ... Storage device 16 ... Display device 17 ... VRAM 18 ... Pointing device 19 ... LAN device 20 ... Network 21 ... Server 31 ... Display table 32 ... Image size table 33 ... Magnification parameter table 34 ... User-specified size table 35 ... Line information management table 36 ... Clickable management table 41 ... Display area

Claims (18)

[Claims] A first resolution recognizing means for recognizing a resolution of a display screen; an image detecting means for detecting image data from data to be displayed; and a resolution of the image data detected by the image detecting means. Second resolution recognizing means for recognizing the image data based on the resolution of the image data recognized by the second resolution recognizing means and the resolution of the display screen recognized by the first resolution recognizing means. Magnification calculating means for calculating a display magnification; resolution converting means for converting the resolution of the image data based on the display magnification obtained by the magnification calculating means; displaying the image data converted by the resolution converting means on the display An information processing apparatus comprising: display means for displaying on a screen. 2. The image processing apparatus according to claim 1, further comprising a size designating unit for designating a display size, wherein the magnification calculating unit determines a display magnification for the image data based on the display size designated by the size designating unit. The information processing device according to claim 1. 3. When there are a plurality of image data in the display target data, an image position recognizing means for recognizing position information of the plurality of image data, and based on the position information recognized by the image position recognizing means. Display size calculating means for obtaining the sum of each image data in the width direction and the highest value in the height direction as the display size, wherein the magnification calculating means is based on the display size obtained by the display size calculating means. 2. The information processing apparatus according to claim 1, wherein a display magnification for each of the image data is obtained. 4. A data requesting means for requesting data to be displayed from a server computer, a data receiving means for receiving display target data requested by the data requesting means from the server computer, and a resolution of a display screen First resolution recognizing means for recognizing image data, image detecting means for detecting image data from display target data received by the data receiving means, and a second recognizing means for recognizing the resolution of the image data detected by the image detecting means. And a display magnification for the image data based on the resolution of the image data recognized by the second resolution recognition means and the resolution of the display screen recognized by the first resolution recognition means. A magnification calculating means to be obtained; and a display magnification obtained by the magnification calculating means. An information processing apparatus, comprising: resolution conversion means for converting the resolution of the image data; and display means for displaying the image data converted by the resolution conversion means on the display screen. 5. The image processing apparatus according to claim 1, further comprising a size designation unit for designating a display size, wherein the magnification calculation unit calculates a display magnification for the image data based on the display size designated by the size designation unit. The information processing device according to claim 4. 6. When there are a plurality of image data in the display target data, an image position recognizing means for recognizing the position information of the plurality of image data, and based on the position information recognized by the image position recognizing means. Display size calculating means for obtaining a sum value in the width direction and a maximum value in the height direction of each image data as a display size, wherein the magnification calculating means calculates the display size obtained by the display size calculating means. 5. The information processing apparatus according to claim 4, wherein a display magnification for each of the image data is obtained based on the image data. 7. When the image data is linked to other data, coordinate information indicating a clickable area in the image data and link management means for managing a link destination thereof; A coordinate correcting means for correcting the coordinate information managed by the link managing means in accordance with the resolution conversion of the data, and an event in the clickable area is generated based on the coordinate information corrected by the coordinate correcting means. 5. The information processing apparatus according to claim 4, further comprising: a link data requesting unit that detects the occurrence of the request and requests a link destination data. 8. A storage means for storing the image data converted by the resolution conversion means, and an image search for searching the image data from the storage means when the image data is requested again as display target data. The information processing apparatus according to claim 4, further comprising: means for displaying the image data retrieved by the image retrieval means. 9. Recognizing the resolution of a display screen, detecting image data from data to be displayed, recognizing the resolution of the image data, and recognizing the image based on the resolution of the image data and the resolution of the display screen. A display control method comprising: obtaining a display magnification for data; converting a resolution of the image data based on the display magnification; and displaying the converted image data on the display screen. 10. The display control method according to claim 9, wherein a display magnification for the image data is obtained based on the designated display size by designating the display size. 11. When a plurality of image data are present in the display target data, position information of the plurality of image data is recognized, and a sum and a height in a width direction of each of the image data are recognized based on the recognized position information. 10. The display control method according to claim 9, wherein a maximum value in the vertical direction is obtained as a display size, and a display magnification for each of the image data is obtained based on the display size. 12. Requesting data to be displayed from a server computer, receiving the requested display data from the server computer, recognizing a resolution of a display screen, and Detecting image data, recognizing the detected resolution of the image data, obtaining a display magnification for the image data based on the resolution of the image data and the resolution of the display screen, and obtaining the image based on the display magnification. A display control method comprising: converting data resolution; and displaying the converted image data on the display screen. 13. The display control method according to claim 12, wherein a display magnification for the image data is obtained based on the designated display size by designating the display size. 14. When a plurality of image data are present in the display target data, their position information is recognized, and based on the recognized position information, a value of the sum of the image data in the width direction is obtained. 13. The display control method according to claim 12, wherein a maximum value in the height direction is obtained as a display size, and a display magnification for each of the image data is obtained based on the display size. 15. When the image data is linked to other data, coordinate information indicating a clickable area in the image data and its link destination are managed, and the coordinate information is associated with the resolution conversion of the image data. 13. The display control method according to claim 12, wherein information is corrected, an event is detected in the clickable area based on the corrected coordinate information, and data of a link destination is requested. . 16. The image data converted by the resolution conversion means is stored in a cache memory, and when the image data is requested again as display target data, the image data is searched from the cache memory; 13. The display control method according to claim 12, wherein the searched image data is displayed. 17. A recording medium recording a display control program for displaying data on a display device, comprising: a step of recognizing a resolution of a display screen; a step of detecting image data from data to be displayed; A step of recognizing the resolution of the image data; a step of obtaining a display magnification for the image data based on the resolution of the image data and the resolution of the display screen; and converting the resolution of the image data based on the display magnification. And causing the computer to execute a procedure of causing the computer to execute the procedure of displaying the converted image data on the display screen. 18. A recording medium storing a display control program for displaying data on a display device, comprising: a procedure for requesting data to be displayed from a server computer; A procedure for receiving from the server computer, a procedure for recognizing a resolution of a display screen, a procedure for detecting image data from the received display target data, and a procedure for recognizing the resolution of the detected image data; A procedure for obtaining a display magnification for the image data based on the resolution of the image data and the resolution of the display screen; a procedure for converting the resolution of the image data based on the display magnification; and the converted image data And causing the computer to execute the steps of displaying on the display screen. A computer readable recording medium.