JPS6162177A - System for searching vicinal map in map search device - Google Patents

Abstract

PURPOSE:To improve the operability of system and to reduce errors in the designation of position and to enable the searching with high accuracy by displaying automatically a vicinal map only by the manipulation of a joystick. CONSTITUTION:Means for deciding the starting of a discriminator 101 detect irrespective of the presence or absence of a pointer. When the displacement of pointer is stopped, a signal is sent for specifying the starting of discrimination operation of a discriminator 102 for positioning a vicinal map. When the pointer is stopped at the peripheral portion of a now-displaying map, a discriminator decides a vinical map number to be displayed subsequently based on a vicinal relation control table to sent it to a controller 103. A direction indicator 104 sends the positional coordinates of pointer in interlocking with the joystick to a controller 103. A map input means 106 reads the map information by the map number sent from the controller 103 to sent to a controller 105. A map display means 107 displays successively the pointer by the map information from the controller 105 and the data of coordinates from a controller 103.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic map search device, and more particularly to a search method for continuously displaying maps adjacent to the currently displayed map.

[Prior art]

In general, map search devices controlled by a microcomputer! The map is recorded in an external storage device as image information (binary data) of a certain size.

It is well known to use a device for checking the contents of a map by displaying it on a display device as necessary. In addition, in map search devices, due to the size constraints of the map display screen of 9 display devices, there is a function that divides a continuous map into a certain size and holds it, and continuously displays adjacent maps necessary for displaying one. is necessary.

Conventionally, as a method of specifying the adjacent position of an adjacent map and the timing of displaying the adjacent map, a method using manual keys from a keyboard has been used. .

[Problem that the invention seeks to solve]

However, the method of specifying the adjacent position and the display timing of the adjacent map using a single key is prone to key input errors, and when the adjacent relationship is complex, it is difficult to manually enter the adjacent position accurately. There was a limit to that.

The present invention aims to provide an adjacent map search method that eliminates the above-mentioned drawbacks.

[Means for solving problems]

The present invention enables an operator to visually grasp a pointer that continuously moves on a map displayed on a display device by linking a joystick and a pointer as a position indicator, and allows an operator to visually grasp a pointer that continuously moves on a map displayed on a display device. When you move the pointer to a map adjacent to a map and stop moving the pointer, automatically determine and display the adjacent map.
It is a thing that is called. .

For this reason, in the present invention, there is provided a means for detecting whether or not a pointer has moved, and a means for detecting whether or not a pointer has moved. The present invention is characterized by comprising means for determining an adjacent map to be displayed.

By the way, in a map search device, by moving the lever of the joystick, it is possible to easily move the pointer on the displayed map to a predetermined position depending on the direction and direction of the lever. Also, the position of the pointer (
When the coordinates) match the display conditions (described later) of the adjacent map, the @contact map can be displayed on the display device and the position of the pointer can be reset to the newly displayed map.

The present invention is thus an adjacent map search method that can automatically display adjacent maps simply by operating the joystick. Therefore, operability is greatly improved, errors in two-position designation are reduced, and highly accurate and rapid searches can be performed.

〔Example〕

The present invention will be explained in detail below.

FIG. 1 shows in a block diagram the functions of a computer that implements the control method according to the present invention, including a discrimination start determining means 100 that determines the timing to start discriminating adjacent maps, and a discrimination start determining means 100 for determining the timing to start discriminating adjacent maps. It is characterized by having an adjacent map position determining means 101 for determining the position. 103 is a control unit, and 104 is a direction indicating means.

105 is a controller, and 106 is a map input means.

107 is a map display means.

Each part has the following functions.

Discrimination start determining means 101...Detects whether or not the pointer has moved, and when the pointer comes to a halt, adjacent map position determining means 1010 outputs a signal specifying the start of the discriminating operation.

Adjacent map position determination means 102: When the pointer is stopped at a position around the currently displayed map.

Based on the adjacency position determination table and adjacency relationship control table described later, 1
Next, the adjacent map number to be displayed is determined and sent to the control unit 103.

Direction indicating means 104: Sends the position coordinates of the joystick and the linked end pointer to the control unit 103.

Map input means 106 reads the map number and map information sent from the control unit 103 via the controller 105 and sends it to the controller 105.

Map display means 107...Displays map information sent through the controller 1'05. In addition, the control unit 1
03 A pointer is displayed based on the coordinate data sent via the controller 105.

By the way, it is generally difficult to uniquely define the adjacency relationships of maps handled by map search devices, but for the sake of convenience, we will use the adjacency relationships shown in Figure 2 and the adjacent map search procedure shown in Figure 3. I'll explain that.

It is easy to move the pointer to any location on the screen of the display device by specifying the coordinates (inclination and direction of the joystick lever). By making the coordinates where the pointer is displayed and the coordinates of the image memory where the map information (image data) is developed in a 1=1 correspondence, it is possible to know where the pointer is located on the displayed map. It is.

FIG. 4 shows the relationship between the map and coordinates on the image memory.

Here, the shaded portions correspond to divided maps and represent maps developed on the image memory. The left corner of the map corresponds to the origin of the coordinates, and certain areas at the four corners are set to facilitate designation of adjacent maps (upper left, upper right, lower left, lower right). Note that the size of this fixed area is arbitrary.

If the amount of change in the movement destination coordinates (X, y) of the pointer p input from the joystick is O, the joystick operation is in a stopped state, so the position of the adjacent map is determined. If the amount of change is not O, the pointer is moving, so adjacent positions are not determined.

The position of the adjacent map is determined based on the coordinates of the pointer p and on the basis of the adjacent position determination table in Table 1.

After the adjacent position is determined, the map number to be displayed is determined based on the currently displayed map number (reference map number) and the adjacent position based on the adjacent relationship control table (Table 2).

Display on a display device.

After displaying the adjacent margin map, the pointer is automatically moved and displayed at the boundary point with the map before being displayed. for example,
In FIG. 4, if 4 inks are (,"n j )'2) and an adjacent map search operation occurs.

Move the pointer to (o y y2). Also p (X
l x 3'n), move to (0,0).

With the above operations, it is possible to search for adjacent maps using the joystick and the pointer.

The present invention can also be applied to cases where the adjacency relationship is arbitrary.

For example, in densely populated residential areas and mountainous areas, map information may be stored in a storage device at a different scale. How are maps of different scales adjacent to each other?

This is shown in the example of FIG. Map numbers 23 and 24 in the figure are adjacent, but the actual map sizes are the same and the scales are different.

When each map is displayed on a display device, map No. 23 will enlarge a smaller area compared to map No. 24.

As mentioned above, even maps with complex adjacency relationships can be dealt with by increasing the necessary number of adjacent position items in the adjacency control table and by making the conditions in the adjacency determination table more detailed, and this is highly effective. [Effects of the Invention] As explained above, according to the present invention, adjacent maps can be automatically determined and displayed according to the operator's operations, so the operability is greatly improved and it is easier to specify the location. It is possible to perform a highly accurate and quick search without any mistakes.

[Brief explanation of drawings]

FIG. 1 shows the functions that realize the control method according to the present invention. FIG. 2 is a diagram showing an example of a simple adjacency relationship between divided maps. FIG. 3 is a 70-ch yard map showing the search procedure for adjacent maps. FIG. 4 is a diagram showing the relationship between the map and coordinates on the image memory. FIG. 5 is a diagram showing an example of a complicated adjacency relationship between divided maps.
105 is a controller T106 is a map input means; 107
Figure 3 shows the map display means shown in Figure 1.

Claims (1)

[Claims] 1. In a computer-controlled map search device, means for interlocking a joystick and a pointer displayed on a display device to detect whether or not the pointer has moved, and for predetermining a map that is currently displayed while the pointer is in a stopped state. and means for determining an adjacent map to be displayed next based on the pointer position when the pointer is at a peripheral position, thereby making it possible to continuously display maps adjacent to the currently displayed map just by operating the joystick. This is an adjacent map search method that is characterized by the following.