JP2001092352A - Geographic information system and program storage medium therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a geographic information system in which simple orthogonal codinate values which are rounded off with a prescribed unit length and have a 2-byte area and cut-off values are stored in a storage part 2 and which changes over the information processing to an information processing in which highly accurate orthogonal cordinate values are used when a high-precision information processing is required. SOLUTION: This geographic information system is provided with the storage part 2 having a map file 9 and an attribute file 10, a control part 1 having an information control part 6, a display control part 7 and a file management part 5, a display part 3 and an input part 4 and is a system in which the control part 1 reads out the map information and attribute information selected by the input part 4 from the storage part 2 and displays them with the display part 3. Moreover, stored cordinate values to the map file 9 are the simple orthogonal cordinate values which are rounded off in a 2-byte area unit and values which are cut off at the time of obtaining the simple orthogonal cordinate values are stored in the attribute file 10 and a highly accurate cordinate value calculating part 8 is provided in the control part 1 and when the system performs an appointed information processing, the part 8 calculates the highly accurate orthogonal cordinate values from the simple orthogonal cordinate values and the cut-off values and performs the information processing by using the calculated highly accurate orthogonal cordinate values and performs the information processing by using the simple orthogonal cordinate values at the time of performing the information processing other than this information processing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a geographic information system and a program recording medium therefor, and more particularly to a method for performing predetermined data processing, for example, when editing a map.
Performs data processing using simplified coordinate values rounded in byte area units and truncated values corresponding to the simplified coordinate values, and only performs simple data processing when performing other data processing, such as map display and map search. TECHNICAL FIELD The present invention relates to a geographic information system for performing data processing using a program and a program recording medium therefor.

[0002]

2. Description of the Related Art Generally, a geographic information system includes a storage unit having a map file and an attribute file, a control unit having an information control unit, a display control unit and a file management unit, and a display unit for displaying a map area. , A manually operable input unit.

[0003] A map file represents the shape of various features on a map by using rectangular coordinate values of a plurality of points, and stores map information of various places formed by combining various features represented by the rectangular coordinate values of a plurality of points. The stored attribute file stores attribute information corresponding to the map information. The information control unit functions to control the display control unit and the file management unit, etc., the display control unit functions to convert the supplied various information into display information suitable for display, and the file management unit It functions to input and output information to and from the storage unit. Then, when the map area to be displayed on the display unit is selected by the operation of the input unit, the information control unit reads out the selected area map information and the attribute information corresponding to the selected map area from the storage unit, and reads out the information. The selected area map information and the attribute information are supplied to the display unit, and the selected map area is displayed on the display screen of the display unit.

In a known geographical information system, when various features are represented by a plurality of rectangular coordinate values, four points are required.
One using high-precision rectangular coordinate values expressed in byte area,
Some use simple rectangular coordinate values expressed in a 2-byte area.

FIG. 5 is an explanatory diagram showing a relationship between a high-precision rectangular coordinate value represented by a 4-byte area and a simple rectangular coordinate value represented by a 2-byte area in a known geographic information system.

In FIG. 5, P is one rectangular coordinate value representing the shape of a feature, O is the origin of high-precision rectangular coordinates represented in a 4-byte area, and O 'is simple rectangular coordinates represented in a 2-byte area. Is the origin.

As shown in FIG. 5, a high-precision rectangular coordinate represented by a 4-byte area sets a wide range on a map to one rectangular coordinate. , A high-precision rectangular coordinate value P (x, y) is formed by the length x in the X-axis direction and the length y in the Y-axis direction. On the other hand, simple rectangular coordinates represented by a 2-byte area are obtained by setting a narrow range on a map, for example, a large number of mesh portions rounded in units of 10 cm, to one rectangular coordinate.
The lower left vertex of each mesh portion is defined as an origin O ′, and a simple rectangular coordinate value P (a, b) is defined by a length a in the X-axis direction from the origin O ′ to the rectangular coordinate value P and a length b in the Y-axis direction. ) Is formed.

In this case, in the geographic information system in which the rectangular coordinate value P is represented by the high-precision rectangular coordinate value P (x, y), when the unit of the length on the map is selected to be mm, the high-precision rectangular coordinate The value P (x, y) needs to be represented in a 4-byte area. On the other hand, the rectangular coordinate value P is the simple rectangular coordinate value P
In the geographic information system represented by (a, b), a wide range on a map is divided into a large number of mesh portions, one vertex of each of the divided mesh portions is set as an origin O ', and relative coordinates with respect to the origin O' Since the value may be obtained, even when the unit of the length on the map is selected to be mm, it is sufficient to represent the simple rectangular coordinate value P (a, b) in a 2-byte area.

In the geographic information system in which the rectangular coordinate values P are represented by the high-precision rectangular coordinate values P (x, y), the high-precision rectangular coordinate values P ( x, y) is stored. On the other hand, the geographic information system in which the rectangular coordinate values P are represented by the simplified rectangular coordinate values P (a, b) is stored in a map file in the storage unit. The coordinate value P (a, b) is stored.

[0010]

The known geographical information system in which the rectangular coordinate value P is represented by a high-precision rectangular coordinate value P (x, y) is a method for converting the shape of various features into a plurality of high-precision rectangular coordinate values. Although it has the advantage of being able to accurately represent the shape of large-scale features when expressing it in coordinate values, it can also reasonably and relatively accurately represent the shape of small-scale features. , Each high-precision rectangular coordinate value P (x, y) is represented by a 4-byte area,
The storage capacity of the map file storing y) is inevitably increased, and as a result, the manufacturing cost of the geographic information system increases and the overall structure of the geographic information system increases.

The rectangular coordinate value P is a high-precision rectangular coordinate value P
The known geographic information system represented by (x, y)
As long as the selected map area is displayed on the display unit or the search for the map area is performed, it is possible to sufficiently recognize the shapes of various features without displaying the shapes so accurately. Therefore, each high-precision rectangular coordinate value P (x, y) is set to 4
There is no necessity to represent the coordinates in a byte area, and it is sufficient to use the known geographic information system in which the rectangular coordinate values P described later are represented by simple rectangular coordinate values P (a, b).

On the other hand, the rectangular coordinate value P is
The known geographic information system represented by (a, b)
Since each simple rectangular coordinate value P (a, b) is represented by a 2-byte area, the storage capacity of the map file storing each simple rectangular coordinate value P (a, b) can be reduced, Although the production cost of the information system is suppressed from increasing, and the overall structure of the geographic information system is not increased, each simple rectangular coordinate value P (a, b) is expressed in mm.
When expressed in units, only a map area of about 65 m square can be represented, so if a wide area is to be expressed in mm units, the wide area is divided by a map area of about 65 m square, and many maps are created. It is necessary to provide an area, and as a result, when displaying the selected map area or searching for the map area, when displaying the map area or obtaining the search result of the map area Requires many information processing steps, and thus takes a lot of time.

The present invention has been made in view of such a technical background, and an object of the present invention is to provide a simple rectangular coordinate system in which a simple rectangular coordinate value of a 2-byte area rounded by a predetermined unit length and a value truncated at that time are converted to a simple rectangular coordinate system. It is an object of the present invention to provide a geographic information system which stores information as attribute data of values in a storage unit and switches to information processing using high-precision orthogonal coordinate values only when high-precision information processing is required, and a program medium for the system.

[0014]

In order to achieve the above object, a geographic information system according to the present invention represents various features on a map by using coordinate values of a plurality of points, and is formed by combining various features. A storage unit having a map file storing map information of each place, an attribute file storing attribute data, an information control unit for overall control, a display control unit for converting various kinds of information into display information, and a storage unit. A control unit having a file management unit for inputting and outputting, a display unit for displaying display information, and an input unit for selecting a map area by manual operation, wherein the control unit performs selection corresponding to the map area selected by the input unit. The area map information and its attribute information are read from the storage unit, and the read selected area map information and the attribute information are supplied to the display unit for display. Each coordinate value stored in the map file is 2 bytes. The simplified coordinate values are rounded in area units, and the values truncated when obtaining the simplified coordinate values are stored in the attribute file as attribute data of each simplified coordinate value, and a high-precision coordinate value calculation unit is provided in the control unit. When performing the determined information processing, the high-precision coordinate value calculation unit calculates the high-precision coordinate values from the simplified coordinate values and the corresponding truncated values, performs information processing using the calculated high-precision coordinate values, When the control unit performs other information processing, the first unit that performs information processing using simple coordinate values without operating the high-precision coordinate value calculation unit
Is provided.

[0015] In order to achieve the above object, a program recording medium according to the present invention has recorded thereon a program for controlling the operation of a control unit for realizing the geographic information system of the first configuration. The operation of storing each coordinate point representing various features in a map file as a simple coordinate value rounded in 2-byte area units, and using the value truncated when obtaining the simple coordinate value as attribute data of each simple coordinate value; Operation to store the attribute information together with the attribute information in the attribute file, operation to determine whether the information processing selected by the input unit is the predetermined information processing, high-precision coordinates when it is determined to be the predetermined information processing A first operation for driving the value calculation unit to a driving state,
A second operation of reading a corresponding simple coordinate value, attribute information, and attribute data from the storage unit, a third operation of calculating a high-precision coordinate value by the high-precision coordinate value calculation unit from the read simple coordinate value and the attribute data, A fourth operation for performing the information processing determined using the high-precision coordinate values is executed, and when it is determined that the information processing is not the predetermined information processing, the high-precision coordinate value calculation unit is set to the non-drive state. There is provided a second configuration for executing the operation 5, the sixth operation of reading the simple coordinate values and the attribute information from the storage unit, and the seventh operation of performing information processing using the read simple coordinate values.

According to the first and second configurations,
A plurality of coordinate values representing the shapes of various features stored in the map file are defined as simple rectangular coordinate values represented by a 2-byte area rounded to a predetermined unit length, and are rounded off when rounded to a predetermined unit length. The attribute values are stored in the attribute file as attribute data of the simplified rectangular coordinate values, and the geographic information system performs normal map processing, such as display of a map area or search of a map area, for predetermined information processing. When performing information processing that does not apply, the information processing is performed using simple rectangular coordinate values represented by a 2-byte area stored in a map file, while the geographic information system performs high-precision map processing,
For example, when performing predetermined information processing such as editing of a map area, the simple rectangular coordinate values stored in the map file and the attribute data corresponding to the simple rectangular coordinate values stored in the attribute file are read out, and high precision Since the high-precision rectangular coordinate values are calculated from the simplified rectangular coordinate values read out from the rectangular coordinate values and the attribute data, and information processing is performed using the calculated high-precision rectangular coordinate values, the storage capacity of the map file is small. Thus, the storage unit can be made compact, and high-precision information processing can be selectively performed as needed.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of a geographic information system according to the present invention.

In FIG. 1, 1 is a control unit, 2 is a storage unit,
3 is a display unit, 4 is an input unit, 5 is a file management unit, 6 is an information control unit, 7 is a display control unit, 8 is a high-precision coordinate value calculation unit,
9 is a map file and 10 is an attribute file. In this case, the control unit 1 includes a file management unit 5, an information control unit 6, a display control unit 7, and a high-precision coordinate value calculation unit 8, and a storage unit 2
Has a map file 9 and an attribute file 10.

The file management unit 5 is connected to the storage unit 2 and to the information control unit 6. Under the control of the information control unit 6, the file management unit 5 receives information from the storage unit 2 when connected to the storage unit 2. Reading or writing information to the storage unit 2. The information control unit 6 is connected to the input unit 4, and controls the file management unit 5, the display control unit 7, and the high-precision coordinate value calculation unit 8 according to a built-in program. Display control unit 7
Is connected to the display unit 3 and to the information control unit 6, and under the control of the information control unit 6, converts various information supplied from the information control unit 6 into display information suitable for display. The high-precision coordinate value calculation unit 8 is connected to the information control unit 6, and when performing information processing requiring high-precision rectangular coordinate values under the control of the information control unit 6, calculates the high-precision rectangular coordinate values.

Here, the map file 9 is a file in which the shapes of various features are each represented by a plurality of rectangular coordinate values, and map information of various places based on combinations of various features is stored in the form of a database. Each rectangular coordinate value is stored as a simple rectangular coordinate value rounded in units of 2 bytes. The attribute file 10 stores, in the map file 9, the rectangular coordinate values of various features as simple rectangular coordinate values rounded in units of 2 bytes, the values truncated when obtaining the respective simple rectangular coordinate values. This is a file stored as attribute data of the simplified rectangular coordinate values.

The display unit 3 is a general-purpose color display such as a color liquid crystal display device or a color cathode ray tube, and displays a color image according to the display information supplied from the display control unit 7. The input unit 4 is a general-purpose device that can be manually operated, such as a mouse.

The high-precision coordinate value calculating section 8 is newly adopted in the present invention. When the information control section 6 performs information processing requiring high-precision rectangular coordinate values, Reads the simple rectangular coordinate values from the map file 9 through the file management unit 5 and
From 0, the attribute data corresponding to the simple rectangular coordinate values is read, and the read simple rectangular coordinate values and attribute data are received through the file management unit 5 and then supplied to the high-precision coordinate value calculation unit 8, where the high-precision coordinate value calculation unit 8 Calculates the corresponding high-precision rectangular coordinate values from the simple rectangular coordinate values and the attribute data. The calculated high-precision rectangular coordinate values are sent back to the information control unit 6, and the information control unit 6 performs information processing using the high-precision rectangular coordinate values.

FIGS. 2A and 2B show map files 9 used in the geographic information system shown in FIG.
FIGS. 4A and 4B are explanatory diagrams showing an example of each format of an attribute file 10, wherein FIG. 5A shows the format of a map file 9 and FIG.

As shown in FIG. 2A, the map file 9 is a file in which first to N-th (plural) feature storage data are stored in different data areas. The number of features stored, N in this example, is stored,
The first area stored data is in the next area, the second area stored data is in the next area,..., And the Nth area is stored in the last area.
Are stored respectively. And
The first feature storage data includes a feature identification key column, a feature component number column, a first feature component (X coordinate) column, and a first feature component (Y coordinate) column. The second feature point (X
The (coordinate) column, the second feature point (Y coordinate) column, and the like are provided by the number of feature points. Second feature storage data, ...
,..., The N-th feature storage data also include the same columns as the first feature storage data, although not shown in FIG.

As shown in FIG. 2B, the attribute file 10 is a file in which first to Nth (plural) attribute data are stored in different data areas, and stored in the first area. The number of attribute data items, N in this example, is stored, the first attribute data is stored in the next area, the second attribute data is stored in the next area,..., And the Nth attribute is stored in the last area. Data is stored. The first attribute data includes a feature identification key column, a feature component number column, a truncated value column for the first feature component (X coordinate), and a truncated value column for the first feature component (Y coordinate). In addition, the number of the second feature component (X coordinate) cutoff value columns, the second feature component point (Y coordinate) cutoff value columns, and the like are provided as many as the number of feature component points. The second attribute data,...,..., The Nth attribute data are also shown in FIG.
Although it is not shown in the figure, it has the same columns as the first attribute data.

FIG. 4 is an explanatory diagram showing the correspondence between the simple rectangular coordinate values stored in the map file 9 and the truncated values stored in the attribute file 10.

As shown in FIG. 4, a certain feature represented by a key A has four high-precision rectangular coordinate points P1 (P1x, P1y) and P2 (P2x, P2).
y), P3 (P3x, P3y), P4 (P4x, P4
y), the map file 9 includes simple rectangular coordinate points P1x ′, P1y ′, P
2x ', P2y', P3x ', P3y', P4x ', P
4y ′ are stored, and the attribute file 10 stores {P1x, {P1x,
P1y, △ P2x, △ P2y, △ P3x, △ P3y, △
P4x and $ P4y are stored respectively.

In the example shown in FIG. 4, if the unit of the rounding length is set to 100 mm (10 cm), P1x = P1x ′ × 100 + △ P1x, P1y = P1y ′ × 100 + △ P1y, P2x = P2x ′ × 100 + ΔP2x, P2y = P2y ′ × 100 + ΔP2y, P3x = P3x ′ × 100 + ΔP3x, P3y = P3y ′ × 100 + ΔP3y, P4x = P4x ′ × 100 + ΔP4x, P4y = P4y ′ × 100 + ΔP4y expressed.

Next, FIG. 3 is a flow chart showing the operation process when information processing is performed in the geographic information system shown in FIG.

Here, the operation of the geographic information system according to this embodiment will be described with reference to the flowchart shown in FIG.

First, in step S1, when the user operates the input unit 4 to generate map area selection information, the information control unit 6 transmits the map area selection information to the storage unit 2 through the file management unit 5 based on the map area selection information. , The simple orthogonal coordinate values corresponding to the shape of the target feature and its attribute data are read.

Next, in step S2, the information control section 6 supplies the read simple rectangular coordinate values to the display control section 7. The display control unit 7 converts the supplied simple rectangular coordinate values into display information suitable for display, and converts this display information to the display unit 3.
And displays it on the display screen as the shape of a feature.

Next, in step S3, the information control section 6 determines whether or not the operation of the input section 4 has newly generated map area selection information for enlarging / reducing / scrolling the map area. And new map area expansion and
If it is determined that the map area selection information for reducing / scrolling has occurred (Y), the process proceeds to the next step S4, while the map area selection information for newly expanding / reducing / scrolling the map area has occurred. When it is determined that there is no such information (N), the process proceeds to another step S5.

Subsequently, in step S4, with the generation of new map area selection information for enlarging, reducing, and scrolling the map area, the information control unit 6 responds to the enlargement, reduction, and scrolling of the map area. The simple rectangular coordinate values and the attribute data are read from the storage unit 2 through the file management unit 5, and the read simple rectangular coordinate values and the attribute data are supplied to the display unit 3 through the display control unit 7, and are enlarged and displayed on the display screen of the display unit 3. Display the reduced / scrolled map area. After performing this display, the process returns to step S2, and again
The operation after step S2 is repeatedly executed.

In step S5, the information control unit 6 determines whether or not the operation of the input unit 4 generates map area selection information for searching a new map area. When it is determined that map area selection information for searching a new map area has been generated (Y), the process proceeds to the next step S6. On the other hand, no map area selection information for searching for a new map area is generated. If it is determined that map area selection information for editing a new map area has been generated (N), another step S
Move to 8.

Next, in step S6, with the generation of map area selection information for searching for a new map area, the information control unit 6 sets the simple orthogonal coordinate values and attribute data necessary for the map area search processing. Reads from the storage unit 2 through the file management unit 5 and supplies the read simple rectangular coordinate values and attribute data to the display unit 3 through the display control unit 7;
A required map area is searched on the display screen of the display unit 3 based on the display contents.

Next, in step S7, the information control section 6 displays the result of the search for the required map area on the display screen of the display section 3. After performing this display, the process returns to step S2, and the operation after step S2 is repeatedly executed.

On the other hand, in step S8, the information control section 6 selects a feature to be edited (edit target feature) based on the occurrence of map area selection information for editing a new map area. I do.

Next, in step S 9, the information control unit 6 passes, through the file management unit 5, the simplified rectangular coordinate values related to the feature to be edited and the attribute data which is a value truncated when obtaining the simplified rectangular coordinate values. Read from the storage unit 2.

Next, in step S10, the information control section 6 supplies the read simple rectangular coordinate values and their attribute data to the high-precision coordinate value calculating section 8, and converts the simple rectangular coordinate values and their attribute data into a 4-byte area. Calculate the high-precision rectangular coordinate values represented. The calculated high-precision rectangular coordinate values are sent back to the information control unit 6.

Subsequently, in step S11, the information control unit 6 executes information processing for editing the edit target feature using the high-precision rectangular coordinate values supplied from the high-precision coordinate value calculation unit 8.

In step S12, when the information control unit 6 obtains the editing result for the editing target feature,
In order to store the edited result in the map file 9 and the attribute file 10, a new simple rectangular coordinate value represented by a 2-byte area and a value truncated when a new simple rectangular coordinate value is obtained are created. Map file 9 for new simplified rectangular coordinates
And the truncated value is stored in the attribute file 10.
After the simplified rectangular coordinate values and the truncated values are stored, the process returns to step S2, and the operations after step S2 are repeatedly executed.

In this case, the flowchart shown in FIG. 3 is usually performed by using an operation program stored in a recording medium such as a CD-ROM.

In the above embodiment, the simple rectangular coordinate value rounded in units of 2 bytes is described as an example in which the value is rounded in units of 10 cm. The unit of the length is not limited to 10 cm, and any other length unit may be used as long as it is represented by a 2-byte area.

In the above embodiment, the case where the determined information processing edits the map area is described as an example. However, the determined information processing according to the present invention is performed when the map area is edited. The present invention is not limited to this, and other information processing may be used as long as information processing using high-precision rectangular coordinate values is required.

[0047]

As described above, according to the present invention, when the geographic information system performs information processing that does not correspond to predetermined information processing such as normal map processing, for example, display of a map area or search of a map area. Performs the information processing using simple rectangular coordinate values represented by a 2-byte area stored in a map file, while the geographic information system determines a high-precision map processing, such as editing of a map area. When performing information processing, read the simple rectangular coordinate values stored in the map file and the attribute data corresponding to the simple rectangular coordinate values stored in the attribute file, and read the simple rectangular coordinate values read out with high-precision rectangular coordinate values. And the attribute data to calculate high-precision rectangular coordinate values, and perform information processing using the calculated high-precision rectangular coordinate values. Part compactness with attained, and the effect of it is possible to perform selective accurate information as needed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a geographic information system according to the present invention.

FIG. 2 is an explanatory diagram showing an example of each format of a map file and an attribute file used in the geographic information system shown in FIG.

FIG. 3 is a flowchart showing an operation process when information processing is performed in the geographic information system shown in FIG. 1;

FIG. 4 is an explanatory diagram showing a correspondence relationship between simplified rectangular coordinate values stored in a map file and truncated values stored in an attribute file.

FIG. 5 is an explanatory diagram illustrating a relationship between a high-precision rectangular coordinate value represented by a 4-byte area and a simple rectangular coordinate value represented by a 2-byte area in a known geographic information system.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 control unit 2 storage unit 3 display unit 4 input unit 5 file management unit 6 information control unit 7 display control unit 8 high-precision coordinate value calculation unit 9 map file 10 attribute file

Claims (3)

[Claims] 1. A map file in which various features on a map are represented by coordinate values of a plurality of points, and a map file storing map information of various places formed by combining the various features, and an attribute file storing attribute data are provided. A storage unit, an information control unit for overall control, a display control unit for converting various information into display information, a control unit having a file management unit for inputting and outputting information to and from the storage unit, and displaying the display information A display unit, and an input unit for selecting a map region by manual operation, the control unit reads selected area map information and attribute information corresponding to the map region selected by the input unit from the storage unit,
In the geographic information system for supplying the read selected area map information and the attribute information to the display unit and displaying the selected area map information and the attribute information, each coordinate value stored in the map file is a simple coordinate value rounded in units of 2 bytes, and The value truncated when obtaining the coordinate value is stored in the attribute file as attribute data of each simple coordinate value, and a high-precision coordinate value calculation unit is provided in the control unit, and the control unit performs predetermined information processing. The high-precision coordinate value calculation unit calculates high-precision coordinate values from the simplified coordinate values and the corresponding truncated values, performs information processing using the calculated high-precision coordinate values, and the control unit Wherein the information processing using the simple coordinate values is performed without operating the high-precision coordinate value calculating unit. 2. The geographic information system according to claim 1, wherein the determined information processing is information processing for editing for dividing or combining a feature. 3. A program recording medium on which a program for controlling the operation of the control unit for realizing the geographic information system according to claim 1 is recorded, wherein the program includes coordinates representing various types of features. An operation of storing a point in a map file as a simple coordinate value obtained by rounding a point in units of 2 bytes, storing a value truncated when obtaining the simple coordinate value as attribute data of each simple coordinate value, and storing the attribute data together with attribute information in an attribute file. Operation, an operation for determining whether or not the information processing selected by the input unit is determined information processing, and when determining that the determined information processing is the determined information processing, the high-precision coordinate value calculating unit is set to the driving state. A second operation of reading out the corresponding simple coordinate value, the attribute information and the attribute data from the storage unit, and a high-precision operation based on the read simple coordinate value and the attribute data. A third operation of calculating a high-precision coordinate value by a degree coordinate value calculation unit, a fourth operation of performing the predetermined information processing using the high-precision coordinate value, and executing the predetermined information. A fifth operation of setting the high-precision coordinate value calculation unit to a non-driving state when it is determined that the processing is not processing;
A program recording medium for executing a sixth operation of reading the simple coordinate values and the attribute information from the storage unit, and a seventh operation of performing information processing using the read simple coordinate values.