KR101150348B1 - Manufacturing methods of digital map data conferred ufid - Google Patents

Abstract

PURPOSE: A numerical map manufacturing method is provided to integrate a space information management system, thereby providing a ubiquitous national territory information service. CONSTITUTION: A numerical map manufacturing method includes a numerical map preparation step(SA) and an integrated unique feature identifier(UFID) allocation step(SB). The integrated UFID allocation step includes a legal code assigning step(S40), a geographical feature code assigning step(S50), a serial number assigning step(S60), and an error checking value assigning step(S70). The numerical map preparation step is comprised of a data preparation step(S10), an attribute layer creation step(S20), and a digital map editing step(S30). The digital map editing step comprises a symbol registration step(S31), a road editing step(S33), and a map margin layer editing step(S39).

Description

Manufacturing method of digital topographic maps with integrated WFID that can be used for underground facility and orthodox image linked with ground control point surveying and aerial lidar survey data processing {Manufacturing methods of digital map data conferred UFID}

The present invention provides a unified UFID for the unification of the spatial information management system and the systematic and efficient management of spatial information (digital map, 3D DB, new address, semester, etc.) for the ubiquitous-based national land information service. Relates to a method for producing a digital topographic map.

UFID is a unique number assigned to distinguish features such as human resident registration number, which connects spatial information and attribute information about all the features that make up the country's national territory, that is, spatial information (ie, map leaf) It is the only identifier that matches the attribute information with figure information represented by points, lines, and planes.Since the mid 2000, the introduction of ITS, telematics, ubiquitous, etc. has been applied to various environments, Increasing importance in the field of application.

As shown in FIG. 1, the configuration of the UFID according to the prior art includes a feature management institution code of 4 digits, a leaf number of 9 digits, a feature management code of 4 digits, a value determination code user of 1 S field, and a feature serial number of 15 digits. The error confirmation field consists of 1 digit and consists of 34 digits of 6 fields.

Feature management organization code is an organization code for constructing / managing basic geographic information and assigns 4 digits in anticipation of the number of organizations not exceeding 9999. 9 digits were assigned to, and serial numbers of all the features constituting the basic geographic information were assigned, and the S field was assigned to check whether the feature was the serial number in the leaf or the unique number of the user organization. 15 digits were secured for the feature serial number assignment, and UFID was configured by assigning 1 digit error check field to check whether an error occurred when transmitting data at the last digit.

The UFID according to the prior art divides the entire spatial data into a certain unit called a map leaf, and if there is no prior knowledge of the position of the map leaf, the acquisition of location information is not smooth and the feature management, which is unnecessary information for the object in the use of spatial information, is managed. There are users of the engine code and the value determination code of the S field, and too many feature serial number digits, which causes systematic management, correction and update.

In the electronic information technology era, digital maps are mainly used as digital topography, and existing digital maps have many logical contradictions and geometric problems.

Therefore, digital maps (ie, digital topographic maps) also need to eliminate logical contradictions and geometric problems in accordance with the newly granted UFID for more systematic and efficient management. A spatial database, which is geographic information data having geometrical information and attribute information from which geometric problems are eliminated, may be utilized.

Geometry information of the spatial database is information that plots the features of real space into points, lines, and planes as shown in FIG. 2A, and attribute information is information about the properties (position coordinates, types, areas, etc.) of the features. 2b shows an example of attribute information about the building.

The figure information of the spatial database is expressed using only points, lines, and planes, and is merely a map that does not conform to the schematics and rules of the digital map.

The problem of the shape information of the spatial database, that is, the difference from the digital map, is as follows.

In the geospatial database, the points are simply represented as dots for the feature's volume or other reasons, but they must be represented as symbols or periods on the digital map, and they are not represented as dots in the geometry information but exist in the attribute information. The feature must be displayed on a digital map,

In the shape information of the spatial database, the faces should be represented by lines in the digital map, and the same type of features are overlapped in the shape information but not in the digital map.

Text information is not displayed in the shape information of the spatial database but exists in the attribute information, but the text information is displayed on the digital map.

In the geometric information of spatial database, the points, lines, and planes according to the feature are not represented. However, in the digital map, the points, lines, and planes are different in color, size, and type depending on the feature. Expressed to be distinguished.

As there are many differences between the shape information and the digital map of the spatial database as described above, when creating a digital map using the spatial database, the operator manually matches the attribute information of the spatial database and checks it according to the rules and rules of the digital map. Process edited.

Manual editing by the operator requires considerable time and effort, and many errors occur in the correction due to the complicated shape information.

Therefore, there is a strong need for a technique for quickly and accurately producing digital maps using a spatial database.

The present invention has been made in order to solve the problem of the UFID is given in the prior art as described above, the object represented in the digital topographic map for the systematic management and utilization of object-based spatial information in the national integrated digital topographic map It is an object of the present invention to provide a method for producing a digital topographic map that is assigned a more efficient integrated UFID to a feature represented by a point, a line, or a surface.

In addition, the present invention has been made in response to the problem of producing a digital map using a spatial database by hand in the prior art, and the need for an automatic production method according to the present invention, the shape information, attribute information, and seed of the spatial database data Create layer by property by using layer information of each layer of file data, create raw digital map by applying created property layer by shape information, and digitally process and edit raw digital map automatically according to diagram and rule By completing the map, it is another object to provide a method of making a digital topographic map with an integrated UFID that automatically and quickly produces a digital map.

The manufacturing method of the digital topographical map given the integrated UFID according to the present invention for achieving the above object

A digital topographic map preparation step of preparing a digital topographic map having figure information and attribute information;

The integrated UFID granting step of granting the integrated UFID to each feature of the figure using the figure information and the attribute information;

The integrated UFID grant step

A statutory code assigning step of analyzing the administrative boundary layer of the figure information and assigning a statutory code indicating a region to which the corresponding feature belongs;

A feature code granting step of assigning a feature code indicating an object type of the feature by using the attribute information;

A serial number assigning step of assigning serial numbers for distinguishing between the statutory identification code and the feature code to the same feature;

And an error checking value granting step of assigning an error checking value indicating whether there is an error by analyzing the provided statutory code, a feature code, and a serial number.

The statutory identification code constituting the integrated UFID is composed of 10 digits, the feature code is composed of 8 digits, the serial number is composed of 8 digits, and the error check value is characterized by consisting of 1 digit,

The resin tooth shape preparation step

A data preparation step of preparing a spatial database data having geometry information and attribute information, and seed file data having layer information including layer name, line type, color, and symbol for each layer according to the standard code for each feature;

A property layer generation step of generating a property layer using the figure information, property information, and layer information;

And a digital map editing step of processing and editing the raw digital map obtained by applying the attribute-specific layer to complete the digital map.

The digital map editing step

And a symbol registration step of registering a symbol at a corresponding position of the original digital map as layer information generated in the layer generation step for each property.

If the layer of the position where the symbol is to be registered is a face type, the symbol registration step

A center position calculation step of calculating a center position from vertices of the face;

An internal / external determination step of determining whether the central position exists inside or outside of the plane by calculating the number of intersection points between the first straight line passing through the plane at the calculated center position and the line segment constituting the plane;

In the internal and external determination step, when the center position is determined to be an external point, the shortest corner vertex of the plane at the shortest distance from the central location and the central location, and a second straight line passing through the center location and the shortest vertex vertex And a center position correction step of extracting an intersection point intersecting to and correcting the extracted shortest vertex and an intermediate point of the intersection point into a new center position.

The symbol may be registered at an internal center position determined in the internal / external determination step or an internal center position modified in the center position correction step.

The manufacturing method of the digital topographical map to which the integrated UFID according to the present invention having such a configuration is assigned is provided with a legal code for the location information in the integrated UFID, and the attribute information can be identified and assigned to the integrated geographical feature code. Realize unification of management system of spatial information by expressing contents of spatial information with minimum number of digits with sufficient serial number and error checking checks between data transmission, preparing spatial information system for ubiquitous based land information service and spatial information with minimum number of digits By expressing all the contents of, the efficient and systematic management, correction and update of spatial information is facilitated.

In addition, the digital map as a support diagram is automatically produced to meet the schematics and rules quickly and accurately.

1 is a configuration table of the UFID according to the prior art.
2A and 2B show examples of figure information and attribute information of a spatial database.
3 is a diagram for explaining a difference between figure information and a digital map;
Figure 4 is a procedure of the manufacturing method of the digital topographical map given the integrated UFID according to the present invention.
5 is a schematic diagram of an integrated UFID in accordance with the present invention.
6 is an exemplary diagram in which an integrated UFID according to the present invention is assigned to a digital topographical diagram.
7 shows an example of a symbol and grouping of the symbol;
8 is an example table of layer information of a seed file.
9 a and b are views for explaining a symbol registration step in a face type layer;
10 a and b are views for explaining the editing step of the road layer.
11 is a view for explaining a method of editing a tributary layer.
12 is a table of upper and lower relations for editing the administrative boundary layer.
13 is a view for explaining a step of editing a contour layer;
FIG. 14 is a comparison diagram of figure information of a spatial database and a digital map produced using the present invention; FIG.

Hereinafter, with reference to the drawings will be described in more detail with respect to the manufacturing method of the digital topographical map to which the integrated UFID according to the present invention.

As shown in FIG. 4, the method for producing a digital topographic map to which an integrated UFID is provided according to the present invention includes a digital topographic map preparation step (SA) and an integrated UFID granting step (SB).

The integrated UFID granting step (SB) comprises a statutory dynamic code granting step (S40), a feature code granting step (S50), a numbering step (S60), an error checking value granting step (S70),

The digital topographic map preparation step (SA) includes a data preparation step (S10), a layer generation step (S20) for each property, and a digital map editing step (S30), and the digital map editing step (S30) includes a symbol registration step (S31). , Road editing step S33, and contour layer editing step S39.

The unified UFID is composed of UFID by assigning serial numbers to the same objects included in the statutory boundaries in a way that can be expressed nationwide using the statutory code used by most public institutions. As can be seen, a total of 27 digits of the legal code (10 digits), the feature code (8 digits), the serial number (8 digits), and the error check number (1 digit) are written. ) Consists of the 10-digit code number of the administrative districts (city, metropolitan city, province / si-gun-gu / eup-myeon-dong-ri) of the country, and the feature code consists of 8 digits of the digital map feature standard code. It is possible to process more than 999 million identical objects within the boundary, and it is configured in such a way that the number of error checks between data transmissions can be set.

In the figure information of the digital topographic map, all features are represented by one of points (or symbols), lines, and faces.

The legal code assigning step (S40) as the integrated UFID assigning step (SB) for assigning each UFID of the features is a step of assigning a legal code indicating a region (ie, an administrative boundary) to which the feature belongs, The administrative boundary layer is analyzed from the information, and the administrative boundary code is given by extracting which administrative boundary the feature belongs to.

In the figure information of the digital topographic map, the administrative boundary is represented by the surface, and the features belonging to the same administrative boundary have the same legal code.

At this time, administrative boundaries are divided into upper administrative boundaries, cities, counties, and districts within upper administrative boundaries, middle administrative boundaries, and towns, towns, cities, and provinces within middle administrative boundaries, and lower administrative boundaries. As shown, the first two digits indicate the upper administrative boundary, the next four digits indicate the middle administrative boundary, and the next four digits indicate the lower administrative boundary.

When assigning a legal code to a feature, the feature appears as a line or face in the figure information. The legal code of a feature that spans two administrative boundaries is a problem. In this case, the line has a longer distance and the face has a larger area. It belongs to the administrative boundary of.

Feature code assignment step (S50) is a step of assigning a feature code indicating the object type of the feature, is taken from the attribute information of the digital topographical map. For reference, since the feature information of the digital topographic map basically includes the feature code, the feature code matching the feature of the figure information is analyzed and then the feature code of the attribute information is imported.

Serial number assignment step (S60) is a step of assigning a serial number for distinguishing features of the same kind within the same administrative boundary, belonging to the same administrative boundary, that is, the statutory code is the same, the same type, that is, Feature codes are distinguished from each other by assigning serial numbers sequentially to the same features.

Assignment of serial numbers may be performed by sequentially assigning serial numbers to features of the same object, going from top to left to right within the same administrative boundary, from left to top to bottom, or in a sequence close to the center of the administrative boundary, or in various other ways. You can give it.

The error checking value assigning step (S70) is a step of analyzing whether there are no errors in the legal code, the feature code, and the serial number of the previously given feature and giving an error checking value indicating the result.

Checking whether there is an error checks whether the court code, the feature code, and the serial number are 10, 8, and 8 digits, respectively, and whether there is a feature having the same UFID.

The integrated UFID for the feature for which the statutory code assignment, the feature code assignment, the serial number assignment, and the error check value assignment are completed are registered and stored in the property information so as to match the corresponding figure information of the digital topographic map.

Thus, when the figure information for a particular feature is selected in the digital topographic map, the integrated UFID for the feature of the selected figure information is displayed as shown in FIG.

The digital topographic map preparation step (SA) is a step of automatically producing a digital map as a digital topographic map without logical contradictions and geometric problems.

In the digital topographic map preparation step SA, the data preparation step S10 prepares spatial database data and seed file data.

The taxonomy of spatial databases includes traffic (22 layers), buildings (2 layers), facilities (55 layers), vegetation (4 layers), water systems (8 layers), terrain (5 layers), and boundaries ( 5 layers), composed of 104 layers in total (5 layers).

As described above, the spatial database data is divided into figure information and attribute information, and most layers are represented by figure information consisting of points, lines, and planes. However, layers such as symbols and periods are not represented by figure information, but attribute information. Is provided.

The attribute information records the unique information for each element of the figure information in the corresponding fields, and is constructed according to Article 5 of Article 22 (Structured Editing Regulations) of the National Geographic Information Institute.

When only the figure information is used, it can be expressed as one layer, but it is impossible to convert (manufacturing) into an accurate digital map that meets the schematics and rules. However, by using the attribution information together, it is possible to produce an accurate digital map.

For example, when the altitude value of the attribute information is used for the shape information of the contour file, the data is divided into main curve and valley layer and converted into an accurate digital map.

The seed file data has layer information such as layer name, line type, color, and symbol for each layer according to the standard code for each feature of the National Geographic Information Institute Article 9 (Vectorization).

For reference, the layer information of the seed file may vary slightly depending on the accumulation of the map.

As the layer information of the seed file material, it is preferable that the symbol has the same symbol name and layer name. This is because the symbols must be built in the corresponding layer so that their names (that is, the symbol name and the layer name) are the same, so that the matching can be easily, quickly and accurately.

In order to display (ie, register) the symbol correctly on the digital map, as shown in FIG. 7, it is necessary to group the various elements (points, lines, circles, arcs, etc.) to select the center point of the group. desirable. The center point of this selected symbol is located at the center of the point or line or face of the map. The left side of Fig. 7 is a grouping of symbols, and the right side shows an example of selecting a center point of the group.

The property layer generation step (S20) is a step of generating a property layer using the shape information and property information of the spatial database and the layer information of the seed file, and the generated property layer is applied to the shape information. Generate raw digital maps.

8 shows an example of a conversion code for generating a layer for each attribute.

The attribute information of the spatial database has not only information about all the points, lines, and faces represented by the figure information, but also features not represented by the figure information.

Therefore, the layer generation step for each property (S20) extracts layer information corresponding to the property information from the seed file based on the property information of the spatial database, and applies the extracted layer information to the shape information (ie, corresponding to the property information). Extract the point, line, plane or coordinates of the figure information to create a layer for each property.

When the layer information (ie, layer information for each attribute) according to the extracted attribute information is applied to the figure information, the raw digital map of the unedited state is generated.

The raw digital map is added with lines of shape information of the spatial database, lines and faces with different colors and line types, and symbols, periods, and text layers on the faces, and does not conform to the city and rules of the digital map.

The digital map editing step (S30) is a step of processing and editing the original digital map that does not meet the city and the rule in accordance with the city and the rule, so that symbols and periods are registered in the correct location.

The digital map editing step S30 includes a symbol registration step S31, a road editing step S33, a tributary and administrative boundary editing steps S35 and 37, a contour editing step S39, and the like. The predecessor of the stage is not fixed.

The symbol registration step (S31) is to register a symbol representing a paddy field, a field, a school, an athletic stadium, a national reference point, etc. on a map, and to display the symbol. Although it is simple to register a symbol at the location of a point, when registering a symbol symbolizing a feature on a line or face of figure information, information on the location where the symbol is registered does not exist in the figure information or attribute information of the spatial database. In order to register the symbol at the center point of the plane or line, the symbol registration step is required.

The feature to register the symbol is mainly a building, vegetation, water system, road center line, etc., and the registration of period or text also uses the symbol registration method.

In the symbol registration step S31, the symbol is registered in the line type layer and the face type layer corresponding to the line and the surface of the figure information generated in the layer generation step S20 for each property.

The feature of the line type layer in which the symbol (or cycle) is registered is a road center line or a river boundary line. Examples of the registered symbol (or cycle) are [road sign-road number-road name], [river name]. There may be a back.

In the linetype layer, the center point is determined as the midpoint of both ends of the linetype layer. That is, the coordinates (X, Y) of the registered center point of the symbol are X = (x1 + x2) / 2 and Y = (y1 + y2) / 2.

In this case, when the curvature of the line type layer is large and the shortest distance between the middle point of both ends and the line type layer is long, it is desirable to reduce the shortest distance by moving the center point where the symbol is registered on a straight line connecting the middle point and the shortest point. can do.

Representative features of the face type layer where a symbol is registered are paddy fields, fields, and buildings.

When the face type layer is not a simple shape such as a rectangle, it is not easy to automatically calculate and determine the center point where the symbol is registered.

The symbol registration step S31 in the plane type layer is composed of a center position calculation step S311, an internal and external determination step S313, and a center position correction step S35.

The center position calculating step S311 calculates a center position from vertices of a corresponding surface.

That is, the average value of the coordinates (x, y) of the vertices constituting the plane becomes the center position coordinates (X, Y). X = (x1 + x2 ... + xn) / n, Y = (y1 + y2 ... + yn) / n, where n represents a vertex.

The internal and external determination step (S313) is a step of determining whether the center position calculated in the center position calculation step (S311) is inside or outside of the corresponding surface.

Referring to FIG. 6A to determine whether it is present inside or outside, an intersection point 5 at which the first straight line 7 passing through the surface and the line segment 1 constituting the surface intersects at the calculated center position 3 It is determined whether the center position exists inside or outside the surface by calculating the number of.

As shown in Fig. 9A, when the center position 3 is inside the plane, there are an even number of intersections 5, and when it is outside, there are even numbers.

When it is determined in the internal and external determination step (S313) that the central position exists inside the plane, the symbol registration step is completed by registering the symbol at the important position, but when the external location is present, the central position correction step (S315) is performed. Correct the center position inside.

Referring to FIG. 9B, the center position correcting step (S315) corresponds to the shortest distance from the center position 13 and the center position when the center position 3 is determined to be an external point in the inner and outer determination step S313. The shortest corner vertex 12 of the face and the second straight line 17 passing through the center position and the shortest corner vertex extract an intersection point 15 intersecting the line segment 11 of the face, and the extracted shortest corner vertex The midpoint of (12) and the intersection point 15 is corrected to a new center position 13A. The symbol is registered at the modified center position (S317).

When the symbol or period has the same object as the surrounding information (that is, when there are several features of the same type nearby), only one representative is registered. For example, when a feature is a building, the symbol is registered on the representative of the largest area.

In principle, digital maps do not have overlapping layers. However, in the raw digital map that mimics the shape information of the spatial database, there are many overlapping layers like the shape information.

The properties of the overlapped layers are typical of roads. In addition to roads, there are tributaries, administrations, and contours (map appearances).

The road editing step S33 is a process of removing the overlapped layer and the termination layer from the planar layer of the road property.

Editing a road removes the layer at the intersection of the road and where the road ends (or begins).

Looking at the figure information (corresponding to the original digital map) on the left side of Fig. 10A, since the intersections of the roads 21 to 24 and the roads 21 to 24 are blocked by the layer 27, the blocked portion as in the digital map on the right is shown. (I.e., overlapping portion 27) is removed. This process removes all layers where the road and the road meet each other and can be said to be a simple task because it is only necessary to determine whether the layers overlap.

However, it is not easy to automatically determine the termination layer at the end or beginning of the road. In particular, automatic determination of the termination layer is difficult when the road is bent several times as shown in FIG. 10B.

The determination of whether the road is an end layer is determined through an angle calculation step S331 and an end area determination step S333. This judgment is based on the geometrical characteristics of the road.

The angle calculating step (S331) calculates the sum of the outer angles formed by the line segments on both sides adjacent to one line segment constituting the road layer,

The determining of the end region (S333) includes whether a straight line connecting the first and third vertices of the four consecutive vertices constituting the road layer and a straight line connecting the second and fourth vertices exist inside the road layer. To judge.

If the angle calculated in the angle operation step S331 is 500 degrees or more, it may correspond to a termination layer. 10B, only the line segments connecting ④ and ⑤ exceed 500 degrees (θ1 + θ2; about 540 degrees).

In the terminal region determination step (S333), the line segments of the region where the two straight lines are determined to exist inside the road layer are the targets of the terminal layer. Referring to Fig. 10B, the line segments ④ through ⑦ correspond to the line segments of the termination region.

The layer that satisfies both the angle calculation step S331 and the termination region determination step S333 is removed through the termination layer removal step S335 as the termination layer of the road.

The tributary layer of the digital map should be expressed in a linear manner rather than a plane, but the geometry information (including the original digital map of the same structure as the geometry information) of the spatial information database is constructed from the plane information. Therefore, it is not possible to edit data completely using only the figure information of the tributary system. 8 is a drawing of a tributary layer comparison between a spatial information database and a digital map.

The editing process (S35) of the figure information of the tributary system is processed in two steps. In the first step, all of the overlapping lines are deleted from the tributary shape information, and in the second step, the tributary shape information overlapping the tiller shape information is deleted. Here, since the elements of the overlapping lines are the same point, it is necessary to find the overlapping lines and delete only the target line. That is, only one overlapping element of a tributary system and a tributary system must exist, and the overlapping of the tributary system and the boundary stream must delete all overlapping lines of the tributary system based on the boundary flow.

Since the administrative boundary graphic information of the spatial information database is stored in the leaf unit, that is, the plane, it should be deleted by the administrative boundary vertical relationship. Therefore, in the editing of the administrative boundary figure information (S37), the attribute information is first classified into the digital map layer, and then the overlapped lower level figure information is deleted using the vertical relationship for each digital map layer. Fig. 12 is a table showing the order of deletion by the administrative boundary.

Because digital maps are stored in contour units (ie scales: 1 / 1,000 and 1 / 5,000), face information that overlaps the contours (outside the map) should be removed. 10 is a diagram comparing the periphery of the spatial information database and the digital map.

The surface information of the spatial database (that is, the contour layer of the digital map) superimposed on the outline corresponding to the outline of the map (that is, a virtual phantom) should be deleted based on the outline as shown in the upper right of the drawing on the right of FIG. The method (i.e., editing of the contour layer (S39)) deletes the contour layer constituting the face when the contour constituting the contour and the contour layer constituting the face are on a straight line (i.e., overlapping). At this time, the contour layer constituting the contour and the contour layer constituting the face do not perfectly match, and the contour layer within a certain distance from the contour is automatically removed in consideration of the buffer.

Fig. 14 is a comparison of figure information of a spatial database with a digital map automatically produced using the present invention.

In the above description of the present invention with reference to the accompanying drawings has been described a method of producing a digital topographical map given an integrated UFID made in a specific procedure and manner, but the present invention can be variously modified and changed by those skilled in the art, such modifications And modifications should be construed as falling within the protection scope of the present invention.

Claims (4)

A digital topographic map preparation step of preparing a digital topographic map having figure information and attribute information;
The integrated UFID granting step of granting the integrated UFID to each feature of the figure using the figure information and the attribute information;

The integrated UFID grant step
A statutory code assigning step of analyzing the administrative boundary layer of the figure information and assigning a statutory code indicating a region to which the corresponding feature belongs;
A feature code granting step of assigning a feature code indicating an object type of the feature by using the attribute information;
A serial number assigning step of assigning serial numbers for distinguishing between the statutory identification code and the feature code to the same feature;
An error check value granting step of giving an error check value indicating whether there is an error by analyzing the provided statutory code, a feature code, and a serial number;

The digital topographical preparation step
A data preparation step of preparing a spatial database data having geometry information and attribute information, and seed file data having layer information including layer name, line type, color, and symbol for each layer according to the standard code for each feature;
A property layer generation step of generating a property layer using the figure information, property information, and layer information;
And a digital map editing step of processing and editing the raw digital map obtained by applying the attribute-specific layer to complete the digital map.

The digital map editing step
A symbol registration step of registering a symbol at a corresponding position of the original digital map as layer information generated in the layer generation step for each property;
Comprising a road editing step of removing the overlapping layer of the intersection points of the roads in the plane layer of the road property constituting the raw digital map, and the termination layer of the end point of the road,

If the layer of the position where the symbol is to be registered is a face type, the symbol registration step
A center position calculation step of calculating a center position from vertices of the face;
An internal / external determination step of determining whether the central position exists inside or outside of the plane by calculating the number of intersection points between the first straight line passing through the plane at the calculated center position and the line segment constituting the plane;
In the internal and external determination step, when the center position is determined to be an external point, the shortest corner vertex of the plane at the shortest distance from the central location and the central location, and a second straight line passing through the center location and the shortest vertex vertex And a center position correction step of extracting an intersection point intersecting to and correcting the extracted shortest vertex and an intermediate point of the intersection point into a new center position.
And registering the symbol at an internal center position determined in the internal and external determination step or an internal center position modified in the center position correction step.

In the road editing step, the removal of the vertical layer of the road property is
An angle calculating step of calculating a sum of an outer angle formed by one of the line segments on both sides adjacent to each other and forming a line layer of the road property;
A terminal for judging whether the straight lines connecting the first and third vertices of the four consecutive vertices constituting the planar layer of the road property and the straight lines connecting the second and fourth vertices exist inside the planar layer of the road property Domain determination step,
A line segment whose angle calculated in the angle calculating step is equal to or greater than 500 degrees, and in which the vertical line removes the line segment of the region determined to exist in the planar layer of the road property as the terminal layer A method of producing a digital topographic map with integrated UFID that can be used to produce underground facilities and orthogonal images and ground airborne survey data processing. The method of claim 1,
Ground control point survey, characterized in that the statutory identification code constituting the integrated UFID consists of 10 digits, the feature code consists of 8 digits, the serial number consists of 8 digits, and the error confirmation value consists of 1 digit. A method of producing a digital topographic map with integrated UFID that can be used to produce underground facilities and orthoimages and to process aerial lidar survey data. delete delete

Images