JP6085197B2 - Portable information processing apparatus, display processing method, and display processing program - Google Patents

Description

  The present invention relates to a portable information processing device such as a tablet-type information processing device including a display screen, a display processing method for performing processing for displaying drawing data such as a design drawing on the display screen, and the display processing method thereof. The present invention relates to a display processing program to be executed by a computer.

  Conventionally, drawings printed on paper are brought into a construction site or a manufacturing site, and work is performed with reference to the drawings. In addition, when there is correction or confirmation of a drawing at the site, the user performs writing, dimension measurement, or the like on the corrected portion of the drawing. In the field, there are cases where the number of drawings to be used is enormous, or there are no desks or spaces for writing with drawings, so it is burdensome for users to work with drawings printed on paper. large.

  In view of this, attention has been paid to displaying a drawing managed by a drawing management system or the like on a portable information processing apparatus that can be easily carried. For example, drawing a drawing on a tablet-type terminal device or the like, and drawing correction points where necessary, has been attracting attention.

  In addition, in order to increase work efficiency in the field, it is desired by users that a target drawing is displayed at high speed on a display screen of a portable information processing apparatus and can be enlarged / reduced and scrolled at high speed.

  For example, in the invention described in Japanese Patent Application Laid-Open No. 2011-165173, the time for expanding vector data is acquired, and when the time is longer than a predetermined time, raster data is created in advance, and the target data is changed to vector data. An apparatus for displaying an image is disclosed.

JP 2011-165173 A

  However, when it is intended to enlarge and display a target image at an arbitrary magnification, it is necessary to convert vector data into raster data to a maximum size that can be enlarged. Otherwise, image degradation will occur when the raster data is enlarged. For example, when a straight line image is enlarged and displayed, the boundary portion does not become a straight line, and the expression becomes jagged. If vector data is converted into raster data in advance to the maximum size that can be expanded, the file size may become too large. For this reason, it may be difficult for a portable information processing apparatus having a limited memory to create, store, and display a large number of raster data corresponding to variable magnifications.

  For example, when a digital drawing is displayed on a tablet terminal that has become popular in recent years, since it can be easily enlarged and reduced by an operation with a finger, there is an increasing demand for displaying details with high definition even when enlarged. In this case, if the digital drawing is raster data, not only is the resolution limited by the resolution of the data, but the raster data must be prepared in a larger size so as to be displayed with higher resolution. And the problem of squeezing the storage area of the storage device occurs.

  On the other hand, when the digital drawing is vector data, it can be displayed in high definition according to the capability of the terminal even if it is enlarged. In general, when the amount of vector is small, it can be said that it can be displayed at high speed and it is an ideal form, but when the amount of vector is very large, it takes time to display the whole, it can not follow the scaling operation with the finger, There is a situation in which the user is stressed such as waiting until the display.

  Therefore, the present invention provides a portable information processing apparatus that can display a digital drawing composed of a large amount of vectors on a display unit with both high speed and high definition.

  The portable information processing apparatus according to the present invention includes a communication unit that receives vector data that is vector format image data from an external device, a display unit that displays an image, and the vector data based on the resolution of the vector data and the display unit. Storage means for storing raster data converted from the above, input means for inputting display magnification of an image displayed on the display means by successive operations, and a vector for generating display data to be displayed on the display means from the vector data Data display control means; raster data display control means for generating display data to be displayed on the display means from the raster data; and if the display magnification input by the input means is a predetermined magnification or less, the raster data Display data generated based on the display means, and the display magnification If the predetermined magnification is exceeded, until the display magnification is determined by the input of the input means, or until the generation of display data to be displayed on the display means from the vector data ends, the raster data Display data generated based on the display means, and the display magnification exceeds a predetermined magnification, and after the display magnification is determined by the input of the input means, or the vector data After the generation of the display data to be displayed on the display means is completed, the control means performs control for displaying the display data generated based on the vector data on the display means.

  The display processing method of the present invention is a display processing method for displaying an image on a display means, the step of receiving vector data as vector format image data from an external device by a communication means, the vector data and the display Storing the raster data converted from the vector data based on the resolution of the means in the storage means, inputting the display magnification of the image displayed on the display means by the input means by a continuous operation, and from the vector data A step of generating display data to be displayed on the display means; a step of generating display data to be displayed on the display means from the raster data; and when the display magnification input by the input means is a predetermined magnification or less. The display data generated based on the raster data is displayed in the table. When the display magnification exceeds the predetermined magnification, the display magnification is determined by the input from the input means, or the display data to be displayed on the display means is generated from the vector data. Display data generated based on the raster data is displayed on the display means until the display magnification exceeds a predetermined magnification, and the display magnification is determined by input from the input means. Or after the generation of the display data to be displayed on the display means from the vector data, the display data generated based on the vector data is displayed on the display means. It is characterized by.

  The display processing program of the present invention is a display processing program for displaying an image on a display means, wherein the wireless communication means wirelessly receives vector data which is vector format image data from an external device, and the vector data Storing raster data converted from the vector data based on the resolution of the display means in a storage means, inputting a display magnification of an image to be displayed on the display means by an input means by successive operations, and the vector Generating display data to be displayed on the display means from data; generating display data to be displayed on the display means from the raster data; and the display magnification input by the input means is a predetermined magnification or less. If generated based on the raster data Display data is displayed on the display means, and the display magnification exceeds a predetermined magnification, until the display magnification is determined by input from the input means, or from the vector data to the display means. Until the generation of display data to be displayed is completed, display data generated based on the raster data is displayed on the display means, and the display magnification exceeds a predetermined magnification, and the input of the input means After the display magnification is determined by the above, or after generation of display data to be displayed on the display unit from the vector data is completed, display data generated based on the vector data is displayed on the display unit. And causing the computer to execute the steps.

  According to the portable information processing apparatus of the present invention, even a digital drawing composed of a large number of vectors can be displayed with both high speed and high definition, and the display unit has a high definition display. Ability to display without user stress.

FIG. 1 is a diagram for explaining an outline of a system using a tablet device according to the present embodiment. FIG. 2 is a block diagram showing the configuration of the drawing management server and tablet device used in the present embodiment. FIG. 3 is a diagram for explaining the operation of the tablet device according to the present embodiment. FIG. 4 is a diagram for explaining the display of the drawing data. FIG. 5 is a diagram for explaining enlarged display of drawing data. FIG. 6 is a diagram for explaining operations and operations when enlarging drawing data. FIG. 7 is a flowchart for explaining the processing procedure of this embodiment. FIG. 8 is a flowchart illustrating a processing procedure for displaying drawing data.

  FIG. 1 is a diagram for explaining an outline of a system using a tablet device according to the present embodiment. The tablet device 1 is a portable information processing device that can be carried by a user. The tablet device 1 includes a touch panel including a display unit 11 such as a liquid crystal display device and a position input unit 12.

  The drawing management server 2 is a server for storing and managing vector format drawing data. The drawing management server 2 is connected to the tablet device 1 by a communication means 4 via a wired or wireless communication means 5.

  The tablet-type device 1 displays the drawing data managed by the drawing management server 2, so that the user can easily view, check, add and modify the drawing even at a site such as construction. Therefore, the convenience for the user is greatly improved as compared with the case where a drawing printed on paper is used.

  FIG. 2 is a block diagram showing the configuration of the drawing management server and tablet device used in the present embodiment.

  The tablet device 1 receives drawing data from the drawing management server 2. Here, the drawing management server 2 stores the drawing data to be received. The stored drawing data is vector-type vector data, or drawing data in the form of both vector-type vector data and raster-type raster data. The tablet device 1 for displaying the vector data and the raster data drawing data can transmit and receive various data to and from the drawing management server 2 via a network such as the Internet 3. Although it is connected wirelessly to improve portability, it may be temporarily transmitted and received by wire. This tablet-type device 1 is thin and relatively lightweight, and is therefore suitable for carrying. For example, it is particularly convenient for bringing it into a construction site, a civil engineering work site, a surveying site, and the like.

  The drawing management server 2 includes a control unit 21 such as a CPU, a ROM 22 of a nonvolatile memory, a RAM 23 of a random access memory, and an image data storage unit 24 for storing image data. The image data storage means 24 is composed of an HDD or the like that can read and write a large amount of data at high speed. The control means 21 is connected to the Internet 3 via the communication means 25 and can communicate with an external device.

  The control means 21 performs overall control of each part of the drawing management server 2 by executing information processing according to various programs. The ROM 22 is a read-only memory that stores various programs to be executed by the control means 21 and parameters necessary for executing the programs. The RAM 23 is a readable / writable memory that provides a working memory when the control means 21 performs a drawing management process or the like.

  The communication means 25 is a communication interface for connecting the drawing management server 2 to a network such as the Internet 3. The drawing management server 2 transmits the drawing data stored in the image data storage unit 24 to the tablet device 1 via the communication unit 25.

  The image data storage means 24 is a drawing management program for the control means 21 to perform drawing data management processing, a resolution reduction processing program for reducing the resolution of drawing data and performing gradation expression processing, and rasterizing vector type drawing data. A program for converting to drawing data of a mold, a drawing database for storing drawing data, and the like are stored.

Server-side wireless communication means 4 is connected to the Internet 3 and connected to the tablet-type device 1 by wired or wireless communication means 5 to transmit and receive various data.
The tablet device 1 includes a control unit 10, a ROM 13, a RAM 14, a display unit 11, an input unit 12, a display data storage unit 15, and a tablet-side wireless communication unit 20.

  The control means 10 executes information processing according to various programs such as a drawing display program for causing the display means 11 to display drawing data. The control means 10 comprehensively controls each part of the tablet device 1.

  The ROM 13 is a read-only memory that stores various programs to be executed by the control means 10, parameters necessary for executing the programs, and the like. The display means 11 is a display device such as a liquid crystal display, and can display drawing data such as design drawings at a predetermined scale. An input means 12 for inputting a position is provided on the surface of the display means 11. The display means 11 and the input means 12 are so-called touch panels. Display data storage means 15 for expanding the drawing data to be displayed on the display means 11 is provided.

The tablet-side communication unit 20 communicates with the server-side communication unit 4 connected to the Internet 3 to transmit / receive various data. Drawing data is received from the drawing management server 2 via this communication.
The RAM 14 is a readable / writable memory that provides a working memory when the control means 10 performs program processing.

  The input means 12 samples the coordinate value of the position where the user is touching with a finger at a predetermined sampling period, and can track the temporal change of the coordinate value in real time. Therefore, when the finger is touching and moving on the display unit 11, it can be determined that the finger is sliding on the display unit 11. Similarly, a user's pinch operation, flick operation, tap operation, and the like can be determined. Here, the pinch operation is an operation of spreading two fingers, the flick operation is an operation of flicking a finger, and the tap operation is an operation of touching with a finger for a short time.

  The ROM 13 includes a nonvolatile large-capacity storage medium such as a hard disk or an EEPROM (Electrically Erasable Programmable ROM), and stores a drawing display program for enlarging and reducing drawing data.

  The control means 10 displays the received drawing data on the display means 11 by executing this drawing display program. Further, in accordance with a user instruction from the input unit 12, the display contents of the display unit 11 are enlarged / reduced.

  The functions of the control means 10 include raster data display control means 17 for generating display data from raster data and displaying it, and vector data display control means 18 for generating and displaying display data from vector data. Is provided. Further, the magnification of the display data to be displayed is calculated in accordance with a user instruction from the input means 12, and the raster data display control means 17 and the vector data display control means 18 are instructed to enlarge and reduce, and the display switching control means. 19 includes display enlargement / reduction control means 16 for outputting a magnification. The display switching control means 19 selects either display data based on raster data or display data based on vector data according to the input magnification, and controls display.

  FIG. 3 is a diagram for explaining the operation of the tablet device according to the present embodiment. A user's finger is touched on the touch panel composed of the display unit 11 and the input unit 12, and a pinch operation is performed to spread two fingers. With this operation, a trajectory in which the finger moves in the directions of arrows 31 and 32 is input. A process for enlarging the display is performed by inputting this operation. If the distance between the two fingers is narrowed, the reduction process is performed. For example, FIG. 4 is a diagram for explaining display of drawing data. When a pinch operation is performed on the input unit 12, the rectangle 41 displayed in the display area 40 of the display unit 11 is displayed as a rectangle 42 that is doubled in size both vertically and horizontally. The whole is displayed twice. The magnification is proportional to the length of the finger trajectory of the pinch action.

  FIG. 5 is a diagram for explaining enlarged display of drawing data. FIG. 5A is a diagram before enlargement. FIG. 5B is a diagram illustrating enlargement based on raster data. FIG. 5C is a diagram for explaining enlargement based on vector data.

  For convenience of explanation, the display area 50 is a display area having a width of 16 dots vertically and horizontally. Here, a triangle 51 is displayed. A case where the area 52 is enlarged and displayed by a pinch operation will be described.

  FIG. 5A is a view before enlargement. This displays display data generated based on raster data. This is based on the assumption that the raster data has a size corresponding to the size of the display area 50, here an area of 16 dots × 16 dots in each of the vertical and horizontal directions. FIG. 5B shows a case where the area 52 is displayed over the entire area of 16 dots × 16 dots. When enlarged display is performed, 1 dot fill becomes 4 dot fill, and the dot 53 is not displayed. Therefore, the image is not smooth and the image quality is deteriorated.

  On the other hand, as shown in FIG. 5C, when enlarged based on the vector data, the portion corresponding to the dot 53 in FIG. 5B is also painted, resulting in a smooth hatched diagram, preventing deterioration in image quality. it can.

  As described above, when raster data matched with the maximum resolution of the display area is used, the image quality of the image is degraded when enlarged. In order to prevent this, raster data with a higher resolution may be used. However, increasing the resolution of raster data means that the data increases accordingly. In order to reduce the storage capacity, vector data is advantageous.

  FIG. 6 is a diagram for explaining operations and operations when enlarging drawing data. An axis 66 indicates the magnification on the display screen. The axis 67 shows the operation time.

  Vector data and raster data to be displayed are stored in the tablet device 1 in advance. The raster data is converted from the vector data to a resolution that is a predetermined multiple of the resolution that can be displayed by the display means 11, for example, twice. Therefore, even if the image is enlarged up to 2 times, a clear image can be displayed without deterioration of image quality. It is not limited to 2 times, and if there is a margin, it may be more than that depending on the capacity for storing the raster data, or less if there is no margin. The predetermined magnification is preferably 1 to 4 times, particularly about 2 times. This is because if the magnification is increased too much, the data will increase accordingly.

  At timing 60, there is no input operation, and a line 65 indicating the display magnification indicates that the display magnification is 1. From this timing 60, a process 69 for generating display data based on the raster data is performed, and a raster type display process 73 of this display data is performed.

  Next, at timing 61, touch panel input is started. The operation is an enlargement operation, and until the timing 63, an operation to widen the interval between two fingers is performed, and a signal 68 is input accordingly. A line 65 indicating the display magnification indicates that the display magnification is 1 to 3 while the input signal 68 is ON. When the enlargement starts, a process 70 for generating display data based on the raster data is performed, and a raster type display process 73 for the display data is performed.

  Display data is generated based on the raster data until the timing 62 when the magnification is doubled. While the magnification is changing, display data is generated a plurality of times according to the magnification, and display processing is performed by a raster type display processing 73. By shortening the interval of multiple generations according to this magnification, it can appear as if it is continuously expanded. Since it is displayed based on raster data, it can be performed at high speed.

  When the magnification exceeds 2, the image quality is degraded when displayed based on the raster data. However, if the display is based on the vector data, the processing time may not be in time, and there may be a problem that the enlarged display is not performed despite the operation. Therefore, a process 71 for generating display data based on the raster data according to the magnification at the timing 63 when the operation is completed is performed while the operation is continued, and a raster type display of the display data is performed. Processing 73 is performed. Further, a process 72 for generating display data from the vector data is performed, and a vector type display process 74 of the display data based on the vector data is performed. That is, the display data vector type display process 74 based on the vector data generated from the timing 64 when the process 72 for generating the display data from the vector data ends is performed, and the deteriorated image display is switched to the fine image display.

  In this way, during the enlargement operation, the image is enlarged according to the operation, and when the enlargement ratio is increased, the image is enlarged and displayed with the deterioration of the image included. An image can be displayed. The user can recognize that he / she is operating, and can visually determine how much the image is enlarged and stopped even when the image is deteriorated while viewing the enlarged display.

  In addition, when a predetermined magnification, that is, a magnification exceeding 2 times in this case, the display data is generated from the vector data between the generation of the display data from the raster data, and the display data is generated from the vector data. When completed, switch to allow display based on vector data. If processing is performed in this manner, the display based on the raster data can be switched more smoothly to the display based on the vector data.

  Further, by updating the display data generated based on the vector data displayed on the display unit 11 as raster data, for example, double raster data can be converted into triple raster data. For example, when the finger is released once, the magnification is fixed, and then the enlargement operation is performed again, the enlarged display may be performed based on the three times the raster data. In this way, the image is less deteriorated and easier to see than when it is based on a double object.

  Here, when generating display data from vector data in the interval between generating display data from raster data, display data from the vector data is displayed if the processing is in time, and if it is not in time, the generation processing is performed. You may make it cancel and display the display data from raster data. Further, the magnification may be changed while the generation process is stopped, and the generation may be started again by changing the magnification in the process of generating display data from the next vector data.

FIG. 7 is a flowchart for explaining the processing procedure of this embodiment. The control means 10 performs processing according to the program.
First, in step S1, screen information of the display unit 11 is acquired. This is screen size and resolution information stored in advance in the ROM 13.
Next, in step S2, vector data and raster data of the drawing to be displayed are acquired.

  The tablet device 1 acquires drawing data from the drawing management server 2 by communication means and temporarily stores it in the RAM 14. This drawing data is vector data. Further, the control means 10 generates raster data of a predetermined size based on the acquired vector data and screen information. For example, raster data having twice the resolution of the display unit 11 is generated. For example, in order not to make the user wait for a long display time, the low resolution raster data generated from the vector data is displayed at high speed. That is, when the display is an entire drawing display or a display with a small enlargement ratio, high definition is not required, and therefore, display may be performed with low-resolution raster data. The required resolution of the raster data is about the same as the resolution of the display means 11, for example, about 768 dots in the vertical direction and 1024 dots in the horizontal direction. However, the data is not enlarged so as not to hinder high-speed display. For example, it may be suppressed to about 1536 dots vertically and 2048 dots horizontally. However, if such raster data can be acquired from the drawing management server 2, the acquired data is temporarily stored in the RAM 14 and is not generated by the tablet device 1. For example, the screen information of the display unit 11 may be transmitted to the drawing management server 2, the desired raster data may be generated from the vector data by the drawing management server 2, and the generated raster data may be received by the tablet device 1.

  Next, in step S3, the size change information, which is information of the enlargement / reduction ratio input from the input means 11, is acquired and temporarily stored in the RAM. The display enlargement / reduction control means 16 calculates the enlargement ratio from the operation information input from the input means 12.

  Next, in step S4, display data obtained by enlarging the raster data according to the enlargement ratio of the size change information is generated. That is, the raster data display control means 17 generates display data corresponding to the display position and the enlargement ratio.

  Next, in step S5, display data is generated by enlarging the vector data in accordance with the enlargement rate of the size change information. That is, the vector data display control means 18 generates display data corresponding to the display position and the enlargement ratio. This process is performed when a predetermined magnification is exceeded and the user's operation input is completed.

Next, in step S6, display processing for displaying the display data is performed.
FIG. 8 is a flowchart illustrating a processing procedure for displaying drawing data. The control means 10 operates according to the program.

  In step S10, it is determined whether the enlargement ratio exceeds a predetermined magnification. In this example, the predetermined magnification is provided with raster data twice as high as the resolution of the display means 11, so this double is the predetermined magnification. Beyond this, the display based on the raster data may deteriorate the image quality. If it exceeds, the process proceeds to step S11, and if not, the process proceeds to step S14.

  In step S11, it is confirmed whether or not the generation of the display data generated based on the vector data and the enlargement ratio is completed. For the display data generated based on the vector data and the enlargement ratio, an operation for generating display data is started after the operation input of the input unit 12 is completed, that is, after the enlargement ratio is determined. Preferably, after the enlargement ratio is determined, display data is generated from the raster data, the generation ends, and after the display data is displayed, the display data is generated from the vector data and displayed. By doing so, although it is a deteriorated image, a once enlarged image is displayed, and instead, a high-definition image is displayed. For the user, the enlargement operation is reflected in real time, so that the operational feeling is satisfied.

  Alternatively, if the enlargement ratio exceeds a predetermined magnification in step S10, display data is generated from the raster data and the generation ends, and display data is generated from the vector data between the display times, and the generation ends. At this point, and before the operation input of the input means 12 is completed, an image generated from the vector data may be displayed. By doing so, it is possible to switch from the display of raster data to the display of vector data more smoothly.

  In step S10 and step S11, a display based on raster data or a display based on vector data is selected. That is, it corresponds to the display switching control means 19 and selects which data is to be displayed based on the enlargement ratio. If the conversion has been completed, the process proceeds to step S12. If the conversion has not been completed, the process proceeds to step S14.

In step S12, the display data generated based on the vector data is stored in the display data storage unit 15.
In step S13, the display data generated based on the vector data stored in the display data storage means 15 is displayed on the display means 11.

In step S14, the display data generated based on the raster data is stored in the display data storage unit 15.
In step S15, the display data generated based on the raster data stored in the display data storage means 15 is displayed on the display means 11.

  According to the present embodiment, high-speed display can be realized with a portable device such as a tablet-type device even in a large-sized and high-definition drawing. At that time, it is possible to prevent a situation such as degradation of visibility and lack of fine lines caused by reducing the resolution.

  The present invention can be used for portable information processing devices such as tablet information processing devices and notebook personal computers.

DESCRIPTION OF SYMBOLS 1 Tablet device 2 Drawing management server 3 Internet 10 Control means 11 Display means 12 Input means 13 ROM
14 RAM
16 Display enlargement / reduction control means 17 Raster data display control means 18 Vector data display control means 19 Display switching control means 21 Control means 22 ROM
23 RAM
24 Image data storage means

Claims (6)

Communication means for receiving vector data which is image data in vector format from an external device;
Display means for displaying an image;
Storage means for storing raster data converted from the vector data based on the resolution of the vector data and the display means;
Input means for inputting a display magnification of an image displayed on the display means by a continuous operation;
Vector data display control means for generating display data to be displayed on the display means from the vector data;
Raster data display control means for generating display data to be displayed on the display means from the raster data;
If the display magnification input by the input means is equal to or lower than a predetermined magnification, display data generated based on the raster data is displayed on the display means,
In the case where the display magnification exceeds a predetermined magnification, until the display magnification is determined by input from the input means, or until generation of display data to be displayed on the display means from the vector data is completed. Display the display data generated based on the raster data on the display means;
When the display magnification exceeds a predetermined magnification, and after the display magnification is determined by input from the input means, or after generation of display data to be displayed on the display means from the vector data is completed. Control means for controlling the display means to display display data generated based on the vector data;
A portable information processing apparatus comprising:   The portable information processing apparatus according to claim 1, wherein the display unit and the input unit are an integrated touch panel.   The portable information processing apparatus according to claim 1, wherein the predetermined magnification is 1 to 4 times.   4. The portable information processing apparatus according to claim 1, wherein display data generated based on the vector data displayed on the display unit is updated as the raster data of the storage unit. A display processing method for displaying an image on a display means,
Receiving vector data which is image data in vector format from an external device by communication means;
Storing raster data converted from the vector data based on the resolution of the vector data and the display means in a storage means;
A step of inputting a display magnification of an image displayed on the display unit by an input unit by a continuous operation;
Generating display data to be displayed on the display means from the vector data;
Generating display data to be displayed on the display means from the raster data;
If the display magnification input by the input means is equal to or lower than a predetermined magnification, display data generated based on the raster data is displayed on the display means,
In the case where the display magnification exceeds a predetermined magnification, until the display magnification is determined by input from the input means, or until generation of display data to be displayed on the display means from the vector data is completed. Display the display data generated based on the raster data on the display means;
When the display magnification exceeds a predetermined magnification, and after the display magnification is determined by input from the input means, or after generation of display data to be displayed on the display means from the vector data is completed. Displaying the display data generated based on the vector data on the display means;
A display processing method characterized by comprising: A display processing program for displaying an image on a display means,
Receiving vector data which is image data in vector format from an external device wirelessly by wireless communication means;
Storing raster data converted from the vector data based on the resolution of the vector data and the display means in a storage means;
A step of inputting a display magnification of an image displayed on the display unit by an input unit by a continuous operation;
Generating display data to be displayed on the display means from the vector data;
Generating display data to be displayed on the display means from the raster data;
If the display magnification input by the input means is equal to or lower than a predetermined magnification, display data generated based on the raster data is displayed on the display means,
In the case where the display magnification exceeds a predetermined magnification, until the display magnification is determined by input from the input means, or until generation of display data to be displayed on the display means from the vector data is completed. Display the display data generated based on the raster data on the display means;
When the display magnification exceeds a predetermined magnification, and after the display magnification is determined by input from the input means, or after generation of display data to be displayed on the display means from the vector data is completed. Displaying the display data generated based on the vector data on the display means;
A display processing program for causing a computer to execute.

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