JP2822967B2 - Simple map making device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simplified map creating apparatus, and more particularly to a simplified map creating method for creating a simplified map based on map information.

[0002]

2. Description of the Related Art Conventionally, in this kind of schematic map creation method, a schematic map is manually created while confirming a target position or a distance or a direction to a building on a map, or a creator himself thinks. While making a schematic map.

There is also a method of taking in a map including a target position or building with a scanner, or searching a database for map information including the target position or building.

Further, by inputting an address of a target position or a building, map creation information is searched based on the address, and an address place, a road and a landmark adjacent to the road are selected from the map creation information. There is also a method of creating a schematic map from the selected information. This method is disclosed in
This is described in detail in Japanese Patent Publication No. 2993.

[0005]

In the above-described conventional map creation method, a map is created manually while confirming the distance, direction, and the like to an object on the map, or while the creator himself considers it. Since a rough map is created, it takes time to create the rough map, and the map becomes inaccurate.

Further, in the case of a method of taking in a map including an object with a scanner or a method of retrieving map information including an object from a database, it is difficult to understand a point on a route to the object, resulting in a huge amount of data. I will.

Further, in the case of a method of recording map landmark information in a database and automatically creating a schematic map based on the map information, a special database for recording the map landmark information is required. A schematic map cannot be automatically created for an area where no information is stored.

Accordingly, an object of the present invention is to solve the above-described problems and to easily create an accurate schematic map in which points on a route to an object can be easily understood without requiring a huge amount of data. It is an object of the present invention to provide a simple map creation device capable of performing the above.

[0009]

A first simplified map creating apparatus according to the present invention creates a simplified map including at least specific information indicating specific roads and buildings based on input map information. A map reading means for reading the map information as image information, a display means for displaying a map image read by the map reading means, and an externally input based on the map image displayed on the display means. Match detecting means for detecting a match between the specified information and the specific information, and character information addition for adding character information inputted from the outside to the specified information for which the match with the specific information is detected by the match detecting means Means, means for displaying the designated information to which the character information has been added by the character information adding means on the display means, and wherein the character information has been added by the character information adding means. And an output means for outputting a constant information to the outside.

[0010] A second simplified map creation device according to the present invention is:
In the above configuration, when the specific information corresponding to the periphery of the coordinate value around each of the coordinate values constituting the trajectory information is a predetermined value set in advance, the coincidence detecting unit is configured to perform the identification information and the specific It is configured to detect a match with the information.

[0011] A third simplified map creation device according to the present invention comprises:
A simplified map creation device for creating a schematic map including at least specific information indicating specific roads and buildings based on input map information, comprising: a map reading means for reading the map information as image information; and a map reading means. Display means for displaying a map image read by the map reading means, vector conversion means for converting the specific information of the map image read by the map reading means into a vector value, and the map image displayed on the display means. Vector extracting means for extracting a vector value of designated information input from outside, and detecting coincidence between the vector value of the specific information converted by the vector converting means and the designated information extracted by the vector extracting means Match detection means, and a character for adding character information input from the outside to the specified information for which a match with the vector value of the specific information is detected by the match detection means Information adding means, means for displaying the specified information to which the character information has been added by the character information adding means on the display means, and the specified information to which the character information has been added by the character information adding means is externally provided. Output means for outputting.

[0012] A fourth simplified map creation device according to the present invention comprises:
A simplified map creation device for creating a schematic map including at least specific information indicating specific roads and buildings based on input map information, comprising: a map reading means for reading the map information as image information; and a map reading means. Display means for displaying a map image read by the map reading means, vector conversion means for converting the specific information of the map image read by the map reading means into a vector value, and the map image displayed on the display means. Vector extracting means for extracting a vector value of designated information input from outside, and detecting coincidence between the vector value of the specific information converted by the vector converting means and the designated information extracted by the vector extracting means Coincidence detection means, and linearization means for converting the designated information, in which the coincidence with the vector value of the specific information is detected by the coincidence detection means, into a line segment approximating a straight line, A character information adding unit that adds character information input from the outside to the line segment converted by the linearizing unit; and the line segment to which the character information is added by the character information adding unit is displayed on the display unit. Means for outputting the line segment to which the character information has been added by the character information adding means.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the operation of the present invention will be described below.

The input map information is read as image information by a map reading means and displayed on a display means. Based on the displayed map image, road information and the like of a map image among trajectories inputted from outside by a coordinate input means are provided. The character information input from the outside is added by the character input means to the locus detected by the match information detecting means.

[0015] Thus, it is possible to easily create a schematic map simply by tracing the path that the creator himself wants to show without using a special database or the like. In this case, since only the roads serving as points can be designated, it is possible to create a map that is easier to see than putting all the maps.

The coincidence information detecting means detects the coincidence between the vector value converted by the raster / vector converting means based on the input map and the vector value extracted by the vector extracting means from the locus from outside. .

Thus, by comparing the direction component of the vector with the noise that appears at random, the detection error can be reduced as compared with the method of comparing the coordinate values. Also, an accurate schematic map can be created.

Further, an approximate straightening process is performed by the straightening means on the locus for which the match is detected by the matching information detecting means.
This allows you to create an easy-to-read schematic map,
It is possible to reduce the data amount of the created schematic map.

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of one embodiment of the present invention. In the figure, a simple map creation device according to one embodiment of the present invention includes a map reading means 1, a coordinate input means 2, a locus extraction means 3, a coincidence information detecting means 4, a character input means 5, a display means 6, , Output means 7.

The map reading means 1 comprises a scanner (not shown) for taking in a map as an image or a search means (not shown) for searching for a designated map image from a map information database (not shown). The map image is sent to the coincidence information detection means 4.

The coordinate input means 2 is composed of a coordinate value input device such as a mouse (not shown), a pen and a tablet (not shown), and sends out the input coordinates and locus to the locus extracting means 3. The trajectory extraction means 3 extracts the coordinates and trajectory input from the coordinate input means 2 as trajectory information, and sends the trajectory information to the coincidence information detection means 4.

The coincidence information detecting means 4 compares the map image sent from the map reading means 1 with the coordinates and trajectories sent from the trajectory extracting means 3 and sets the coordinates and trajectories within a predetermined range from the coordinates and trajectories. It detects whether there is a road or a building.

The character input means 5 adds character information such as a place name and a building name to the trajectory information detected by the coincidence information detecting means 4 and sends the trajectory information to the display means 6 and the output means 7.

The display means 6 displays the map image sent from the map reading means 1 and the trajectory information sent from the character input means 5 on a display (not shown) or the like. The output unit 7 outputs the locus information sent from the character input unit 5 to a file (not shown), a printer (not shown), or the like.

FIG. 2 is a flowchart showing the operation of one embodiment of the present invention. With reference to FIGS. 1 and 2, a schematic map creation process according to an embodiment of the present invention will be described.

First, the map reading means 1 sends the map image read from the map to the display means 6, displays it on the display means 6, and sends the map image to the coincidence information detecting means 4 (step S1 in FIG. 2). .

The creator himself wants to show on the map image displayed on the display means 6 by tracing the tablet with a pen using the coordinate input means 2 based on the map image displayed on the display means 6. Roads, stations, and the like are input as necessary trajectories (step S2 in FIG. 2).

The trajectory extracting means 3 selects and extracts a trajectory from the information input from the coordinate input means 2 (step S3 in FIG. 2), and sends the trajectory to the coincidence information detecting means 4.
At this time, the coincidence information detecting means 4 checks the locus at regular intervals, and stores the coordinate values.

The coincidence information detecting means 4 compares the map image sent from the map reading means 1 with the trajectory sent from the trajectory extracting means 3 for each section, and within a predetermined range from the trajectory. It is detected whether there is a road or a building (step S4 in FIG. 2).

As a result of the comparison, if the distance between the trajectory and the road or building in the map image is within the threshold value, the coincidence information detecting means 4 determines that the same trajectory as the map information is drawn. Then, the coordinate values (extraction points) of the locus are stored (step S5 in FIG. 2).

If the result of the comparison shows that the distance between the trajectory and the road or building in the map image exceeds the threshold value, the incorrect trajectory is drawn. Is determined, and the trajectory is discarded (step S6 in FIG. 2).

By repeating this process until one screen is completed (steps S4 to S7 in FIG. 2), a schematic map path is created. By adding character information such as a place name to the path of the simplified map by the character input means 5 (step S8 in FIG. 2), the simplified map is completed.

FIG. 3 is a view showing a map image read by the map reading means 1 of FIG. 1, and FIG. 4 is a view showing a locus inputted on the map image by the coordinate input means 2 of FIG. FIG. 5 is a diagram showing the trajectory extracted by the trajectory extraction means 3 of FIG.

FIG. 6 is a diagram showing a map image used for comparison with a locus in the coincidence information detecting means 4 of FIG. 1, and FIG. 7 is a diagram showing a coincidence detecting process by the coincidence information detecting means 4 of FIG. 8 is a diagram showing a locus stored in the coincidence information detecting means 4 of FIG. 1, and FIG. 9 is a diagram showing a schematic map to which character information is added by the character input means 5 of FIG.

When the map image read by the map reading means 1 is a map as shown in FIG.
When the creator himself traces the tablet with the pen in the coordinate input means 2 and inputs the desired trajectory, such as a road, a station, or the like, an image as shown in FIG. 4 is obtained.

In this case, the user designates a station, a track, a road, and the like which are to be finally left on the schematic map. The trajectory extracting means 3 matches the traced trajectory with the coordinates on the map and extracts the coordinates, resulting in a trajectory as shown in FIG.

The coincidence information detecting means 4 compares the locus from the locus extracting means 3 with the map image from the map reading means 1,
Coordinates are extracted at regular intervals from the road information and the trajectory, respectively, and it is detected whether or not a point (coordinate) indicating a road exists within a certain distance from the point of the trajectory of interest.

For example, if the point of the road information 20 exists in the coincidence detection range 23 centered on the point of the first trajectory 21,
The coincidence information detecting means 4 determines the point of the first trajectory 21 as the road information 2
It is determined that they match 0, and the point (coordinate) is recorded.

If the point of the road information 20 does not exist in the coincidence detection range 23 centered on the point of the second trajectory 22, like the second trajectory 22, the coincidence information detecting means 4
It is determined that the point of the locus 22 does not match the road information 20, and that point (coordinate) is deleted (see FIG. 7).

The coincidence information detecting means 4 executes the above-described processing for all points extracted from the first and second trajectories 21 and 22 at a constant interval, and obtains a trajectory obtained by connecting the recorded points in order. Get.

When this process is performed on the locus shown in FIG. 5 and the map image shown in FIG. 6, a route as shown in FIG. 8 is obtained. The character input means 5 adds character information input by the creator to this path, that is, names as place names and landmarks on the schematic map, and a schematic map as shown in FIG. 9 is completed.

FIG. 10 is a block diagram showing the configuration of another embodiment of the present invention. In the figure, a simplified map creating apparatus according to another embodiment of the present invention is the same as that of the embodiment shown in FIG. 1 except that a vector extracting means 8, a raster / vector converting means 9 and a coincidence information detecting means 10 are provided. The configuration is the same as that of the simple map creation device, and the same components are denoted by the same reference numerals. The operation of these same components is the same as the operation of the embodiment of the present invention.

The vector extracting means 8 converts the coordinate values input from the coordinate input means 2 into vector values and sends them to the coincidence information detecting means 10. Based on the map image input from the map reading means 1 and the coordinate values input from the coordinate input means 2, the raster / vector converting means 9 converts a line segment (road) passing through coordinates within a predetermined range of the input coordinate values. And the outline of a building such as a track, a station, etc.) are extracted, the line segment is converted into a vector value, and transmitted to the coincidence information detecting means 10.

The coincidence information detecting means 10 includes the vector extracting means 8
Vector value of trajectory information from raster and raster / vector conversion means 9
Is compared with vector values of road information and the like, and those whose vector values match within a predetermined range are detected.

FIG. 11 is a flowchart showing the operation of another embodiment of the present invention. A schematic map creation process according to another embodiment of the present invention will be described with reference to FIGS.

First, the map reading means 1 sends the map image read from the map to the display means 6, displays it on the display means 6, and converts the map image into the raster / vector conversion means 9
(Step S11 in FIG. 11).

The creator wants to show himself on the map image displayed on the display means 6 by tracing the tablet with a pen using the coordinate input means 2 based on the map image displayed on the display means 6. Roads, stations, and the like are input as necessary trajectories (step S12 in FIG. 11).

The vector extracting means 8 selects a locus from the information input from the coordinate input means 2 and extracts it as a vector value (step S13 in FIG. 11), and sends the vector value to the coincidence information detecting means 10. The input of the trajectory to the tablet can be stored as a vector value by checking the coordinates for each fixed section, and the trajectory can be extracted by extracting the vector value.

At this time, based on the map image input from the map reading means 1 and the coordinate values input from the coordinate input means 2, the raster / vector conversion means 9 passes the coordinates within a predetermined range of the input coordinate values. A line segment (outline of a building such as a road, a track, or a station) to be extracted is extracted (step S14 in FIG. 11), and the line segment is converted into a vector value and transmitted to the coincidence information detecting means 10 (step S15 in FIG. 11). .

The coincidence information detecting means 10 compares the vector value of the road information sent from the raster / vector converting means 9 with the vector value of the locus sent from the vector extracting means 8 for each section (FIG. 11). In step S16, it is determined whether or not the trajectory input by tracing the tablet with the pen matches the information on the roads and buildings input on the map.

The coincidence information detecting means 10 obtains the result of this comparison,
If the trajectory and the direction component of each vector of the contour of a road or a building in the map image and the distance between the vectors are within the respective threshold values, it is determined that the same trajectory as the map information is drawn, and the trajectory is determined. Is stored (step S17 in FIG. 11).

As a result of the comparison, the coincidence information detecting means 10 has found that the directional components of the trajectories and the outlines of roads and buildings in the map image and the distances between the vectors exceed the respective threshold values. Then, it is determined that an incorrect trajectory is drawn, and the trajectory is discarded (step S1 in FIG. 11).
8).

By repeating this process until one screen is completed (steps S16 to S19 in FIG. 11), a schematic map path is created. Character information such as a place name is added to the path of this simplified map by the character input means 5 (FIG. 11).
Step S20), the schematic map is completed.

FIG. 12 is a diagram showing a match detection process by the match information detecting means 10 of FIG. 10, FIG. 13 is a diagram showing vector values extracted by the match information detecting means 10 of FIG. 10, and FIG. FIG. 11 is a diagram illustrating a trajectory in which a match is detected by the match information detecting unit 10 of FIG. 10.

In FIG. 12, line segments a to d indicate trajectories input by tracing the map, line segments a and b are trajectories drawn by tracing roads, and line segments c and d are other than roads. The trajectory drawn to the location is shown.

In FIG. 13, vectors A to D correspond to line segments a to d in FIG. 12, respectively, and vectors E to G correspond to roads in FIG. The coincidence information detecting means 11 compares these vectors A to D and vectors EG to determine whether or not the trajectory correctly traces the road.

The vector A has the same directional component as the vector F, but is displaced. However, since the range of deviation between the vector A and the vector F is within the threshold value α, the coincidence information detecting means 11
Is determined to match.

The position of the vector B is almost the same as that of the vector G, but the direction component is different. However, since the error of the directional component of each of the vector B and the vector G is within the threshold value β, the coincidence information detection unit 11 determines that the vector B and the vector G are coincident.

On the other hand, since the error between the direction component of the vector C and the direction component of the vector E is equal to or larger than the threshold value β, the coincidence information detecting means 11 determines that the vector C and the vector E do not match. I do.

The vector D is the vector E of the road in the section.
~ G and the threshold values β,
Since there is more than α, the coincidence information detecting means 11 determines that the vector D does not coincide with all the vectors EG.

Vectors A to D by match information detecting means 11
In the comparison between the vector and the vectors EG, it is determined that only the vectors A and B match, so only the trajectories of the line segments a and b are extracted and sent to the character input means 5 (see FIG. 14). .

FIG. 15 is a block diagram showing the configuration of another embodiment of the present invention. In the figure, a simplified map creating apparatus according to another embodiment of the present invention has the same configuration as the simplified map creating apparatus according to another embodiment of the present invention shown in FIG. The same components are denoted by the same reference numerals. The operations of the same components are the same as those of the other embodiments of the present invention.

The linearizing means 11 processes the trajectory corresponding to the vector value based on the vector value detected by the coincidence information detecting means 10 so as to approximate a straight line, and converts the trajectory approximated to the straight line into a character. Send it to input means 5.

FIG. 16 is a flowchart showing the operation of another embodiment of the present invention. A schematic map creation process according to another embodiment of the present invention will be described with reference to FIGS.

First, the map reading means 1 sends the map image read from the map to the display means 6 and displays the map image on the display means 6, and converts the map image into the raster / vector conversion means 9
(Step S21 in FIG. 16).

The creator wants to show himself on the map image displayed on the display means 6 by tracing the tablet with a pen using the coordinate input means 2 based on the map image displayed on the display means 6. Roads, stations, and the like are input as necessary trajectories (step S22 in FIG. 16).

The vector extracting means 8 selects a locus from the information input from the coordinate input means 2 and extracts it as a vector value (step S23 in FIG. 16), and sends out the vector value to the coincidence information detecting means 10. The input of the trajectory to the tablet can be stored as a vector value by checking the coordinates for each fixed section, and the trajectory can be extracted by extracting the vector value.

At this time, based on the map image input from the map reading means 1 and the input coordinate values input from the coordinate input means 2, the raster / vector conversion means 9 passes through coordinates within a predetermined range of the coordinate values. A line segment to be extracted (outline of a building such as a road, a track, and a station) is extracted (step S24 in FIG. 16), and the line segment is converted into a vector value and transmitted to the coincidence information detecting means 10 (step S25 in FIG. 16). .

The coincidence information detecting means 10 compares the vector value of the road information sent from the raster / vector converting means 9 with the vector value of the locus sent from the vector extracting means 8 for each section (FIG. 16). In step S26, it is determined whether or not the trajectory input by tracing the tablet with the pen matches the information on the roads and buildings input on the map.

The result of the comparison is as follows:
If the trajectory and the direction component of each vector of the contour of a road or a building in the map image and the distance between the vectors are within the respective threshold values, it is determined that the same trajectory as the map information is drawn, and the trajectory is determined. Is saved (step S27 in FIG. 16).

As a result of the comparison, the coincidence information detecting means 10 has found that the directional components of the trajectories and the outlines of roads and buildings in the map image and the distances between the vectors exceed the respective threshold values. Then, it is determined that an incorrect trajectory is drawn, and the trajectory is discarded (step S2 in FIG. 16).
8).

By repeating this process until one screen is completed (steps S26 to S29 in FIG. 16), a schematic map path is created. The straightening means 11 performs a straightening process on the path of the rough map and sends it to the character input means 5 (step S30 in FIG. 16), and the character information such as a place name is written on the approximate straightened road of the map. By adding the information by the input means 5 (step S31 in FIG. 16), the schematic map is completed.

FIG. 17 is a flowchart showing the processing operation of the linearizing means 11 of FIG. These FIGS. 15 and 1
The processing operation of the linearization means 11 will be described using FIG.

The linearizing means 11 compares vector values of trajectories adjacent to each other in the trajectory recorded as a part which coincides with the map information by the coincidence information detecting means 10. It is determined whether the difference is within the threshold value γ (step S4 in FIG. 17).
1).

If the difference between the directional components of the vectors falls within the threshold value γ, the linearizing means 11 takes the sum of the two vectors and replaces them with one vector (step S in FIG. 17).
42). When the difference between the directional components of the vectors does not fall within the threshold value γ, the linearization unit 11 does not perform any processing on the two vectors as they are.

The linearizing means 11 repeats this processing until one screen is completed (steps S41 to S41 in FIG. 17).
S43), a schematic map path is created.

FIGS. 18 and 19 show the linearizing means 1 of FIG.
FIG. 20 is a diagram showing a straightening process by No. 1 and FIG. 20 is a diagram showing a route of a schematic map which has been approximated by the straightening means 11 in FIG.

FIG. 18 shows an example in which one vector is replaced with another vector, and the vectors are combined into one vector. In this case, since the difference between the directional components falls within the threshold value γ by the comparison between the vectors, the vector is replaced with the vector obtained by adding the vectors.

Next, the vector is compared with the vector, and it is determined whether or not the difference between the directional components falls within the threshold value γ. As a result, if the difference between the directional components falls within the threshold value γ, the vector is replaced with the vector obtained by adding the vector.

FIG. 19 shows an example in which the vector cannot be replaced with a single vector. When the vector is compared with the vector, the difference between the directional components exceeds the threshold value γ. The vector is treated as another vector, and the vector is compared with the vector.

For example, if it is assumed that the locus as shown in FIG. 8 is stored in the coincidence information detecting means 10, the above processing is performed, so that the approximate information drawn with a line segment approximating a straight line as shown in FIG. You can get the map route.

As described above, the input map information is read as image information by the map reading means 1 and displayed on the display means 6, and based on the displayed map image, the locus of the locus inputted from outside by the coordinate input means 2 is displayed. By adding character information input from the outside to the trajectory detected by the coincidence information detecting means 4 by the coincidence information detecting means 4, the coincidence with the road information of the map image is added without using a special database or the like. A sketch map can be easily created simply by tracing the road that the creator himself wants to show. In that case, since only the roads serving as points can be designated, a map that is easier to read than that in which all maps are placed can be created.

The matching information detecting means determines whether the vector value converted by the raster / vector converting means 9 based on the input map and the vector value extracted by the vector extracting means 8 from the external trajectory are detected. By performing in step 10, by comparing the direction component of the vector with the noise that appears at random, the detection error can be reduced as compared with the method of comparing the coordinate values. Also, an accurate schematic map can be created.

Further, by performing approximate linearization processing on the trajectory for which the coincidence is detected by the coincidence information detection means 10 by the linearization means 11, an easy-to-view schematic map can be created. Data volume can be reduced.

[0085]

As described above, according to the simplified map making apparatus of the present invention, the inputted map information is read and displayed as image information, and the designated information inputted from outside based on the displayed map image. When at least a match with the specific information indicating a specific road and building is detected, the specified information is displayed with character information input from the outside added to it, and output to the outside. There is an effect that it is possible to easily create an accurate schematic map in which the points on the route to the object are easy to understand without the need.

According to another simplified map creating apparatus of the present invention, input map information is read and displayed as image information, and extracted from designated information input from outside based on the displayed map image. When a match between the vector value and the vector value of the specific information indicating at least the specific road and building converted from the map image is detected, the designated information is added with the character information input from the outside and displayed. The advantage of this is that it is possible to easily create an accurate schematic map in which the points on the route to the object can be easily understood without requiring a huge amount of data.

Further, according to another simplified map creation device of the present invention, the input map information is read and displayed as image information, and extracted from the designated information input from the outside based on the displayed map image. When a match between the vector value and the vector value of the specific information indicating at least the specific road and building converted from the map image is detected, the designated information is converted into a line segment that approximates a straight line, and the line segment is externally converted to the line segment. By adding and displaying the input text information and outputting it to the outside, it is easy to create a simple and accurate outline map that makes it easy to understand the points of the route to the target without requiring a huge amount of data There is an effect that can be.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of one embodiment of the present invention.

FIG. 3 is a view showing a map image read by a map reading means of FIG. 1;

FIG. 4 is a diagram showing a trajectory input on a map image by the coordinate input unit of FIG. 1;

FIG. 5 is a diagram showing a trajectory extracted by the trajectory extraction means of FIG. 1;

FIG. 6 is a diagram showing a map image used for comparison with a trajectory in the coincidence information detection means in FIG. 1;

FIG. 7 is a diagram showing a match detection process by the match information detection means of FIG. 1;

FIG. 8 is a diagram showing a trajectory stored in the coincidence information detecting means of FIG. 1;

FIG. 9 is a diagram showing a schematic map to which character information is added by the character input means of FIG. 1;

FIG. 10 is a block diagram showing a configuration of another embodiment of the present invention.

FIG. 11 is a flowchart showing the operation of another embodiment of the present invention.

FIG. 12 is a diagram showing a match detection process by the match information detection means of FIG. 10;

FIG. 13 is a diagram showing vector values extracted by the coincidence information detecting means in FIG. 10;

FIG. 14 is a diagram illustrating a trajectory in which a match is detected by the match information detecting means in FIG. 10;

FIG. 15 is a block diagram showing a configuration of another embodiment of the present invention.

FIG. 16 is a flowchart showing the operation of another embodiment of the present invention.

FIG. 17 is a flowchart showing a processing operation of the straightening means of FIG. 15;

FIG. 18 is a diagram showing a straightening process by the straightening means of FIG. 15;

FIG. 19 is a diagram showing a straightening process by the straightening means of FIG. 15;

FIG. 20 is a diagram showing a route of a schematic map which has been approximated by the straightening means in FIG. 15;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Map reading means 2 Coordinate input means 3 Locus extraction means 4,10 Matching information detection means 5 Character input means 6 Display means 7 Input means 8 Vector extraction means 9 Raster / vector conversion means 11 Linearization means

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G06T 1/00-11/80 G09B 29/00 G06F 17/50

Claims (7)

(57) [Claims] 1. A simple map creation device for creating a schematic map including at least specific information indicating a specific road and a building based on input map information, comprising: a map reading means for reading the map information as image information; Display means for displaying a map image read by the map reading means; and coincidence detecting means for detecting coincidence between specified information inputted from outside and the specific information based on the map image displayed on the display means. Character information adding means for adding character information input from the outside to the designated information for which a match with the specific information is detected by the match detecting means; and the character information is added by the character information adding means. Means for displaying the specified information on the display means, and output means for outputting the specified information to which the character information has been added by the character information adding means to the outside. Simple map making device. 2. The simple map creation device according to claim 1, wherein the designation information is trajectory information input along with the specific information displayed on the display unit. 3. The method according to claim 2, wherein the coincidence detecting means is configured to determine the specified information and the specified information when the specified information corresponding to the periphery of the coordinate values centering on each of the coordinate values constituting the trajectory information is a preset predetermined value. 3. The simple map creation device according to claim 2, wherein a match with the information is detected. 4. A simple map creation device for creating a schematic map including at least specific information indicating specific roads and buildings based on input map information, comprising: a map reading means for reading the map information as image information; Display means for displaying a map image read by the map reading means; vector conversion means for converting the specific information of the map image read by the map reading means into a vector value; and A vector extracting unit that extracts a vector value of designated information input from the outside based on a map image; and a vector value of the specific information converted by the vector converting unit and the designated information extracted by the vector extracting unit. Match detection means for detecting a match between the specified information and the specified information detected by the match detection means to match the vector value of the specific information. Character information adding means to be added, means for displaying the designation information to which the character information has been added by the character information adding means on the display means, and the designation information to which the character information has been added by the character information adding means And an output unit for outputting a map to the outside. 5. The simple map creating device according to claim 4, wherein the designation information is trajectory information input along with the specific information displayed on the display unit. 6. A simple map creation device for creating a schematic map including at least specific information indicating specific roads and buildings based on input map information, comprising: a map reading means for reading the map information as image information; Display means for displaying a map image read by the map reading means; vector conversion means for converting the specific information of the map image read by the map reading means into a vector value; and A vector extracting unit that extracts a vector value of designated information input from the outside based on a map image; and a vector value of the specific information converted by the vector converting unit and the designated information extracted by the vector extracting unit. Match detecting means for detecting a match between the specified information and a vector segment of the specific information detected by the match detecting means. Linearizing means, character information adding means for adding character information input from the outside to the line segment converted by the linearizing means, and the line segment to which the character information has been added by the character information adding means. A simple map creation device, comprising: means for displaying on the display means; and output means for outputting the line segment to which the character information has been added by the character information addition means to the outside. 7. The simple map creation device according to claim 6, wherein the designation information is trajectory information input along with the specific information displayed on the display unit.