KR100759269B1 - System for creating multipolygon using property information of numerical map the object and method therefor - Google Patents

Abstract

A system and a method for generating an MPolygon(Multi-Polygon) using property information of a digital map object are provided to generate/manage a polygon and the MPolygon without generating the new digital map object by assigning the predetermined property information to each poly-line included in the polygon. A data inputting module(10) receives a digital map made by using digital map making software from a worker. A generating module(20) generates a MPolygon object by selecting a polygon object to be generated as the polygon from the digital map and analyzing geometrical relation of the selected poly-line. A property information setting module(30) sets a value of the property information attached to the poly-line. A property information attaching module(40) attaches the property information to the poly-line. A searching/extracting module(50) searches the MPolygon from the digital map. A changing module(60) converts the MPolygon into a general poly-line by adding or removing the polygon from the MPolygon, or removing all property information of the MPolygon. A displaying module(80) displays the extracted MPolygon to an output device.

Description

System for creating multipolygon using property information of numerical map the object and method therefor}

1 is a block diagram showing a multipolygon generating system according to an embodiment of the present invention,

2A is an exemplary diagram illustrating a screen on which a generation module unit creates an MPolygon object according to an embodiment of the present invention;

2B is an exemplary view showing a screen for attaching attribution information to a polyline with an attribution information attachment module according to an embodiment of the present invention;

2C is an exemplary view showing a screen for partially registering a polygon by a partial addition module according to an embodiment of the present invention;

2d is an exemplary view showing a screen for partially deleting a polygon by a partial removal module according to an embodiment of the present invention;

Figure 2e is an exemplary view showing a screen for removing the attribute information value attached to the polyline release module according to an embodiment of the present invention,

2F is an exemplary view showing a screen in which the control module searches for, creates, and edits polygons according to an embodiment of the present invention;

3A is an overall flowchart illustrating a method of generating a multipolygon using attribute information of a digital map object according to an embodiment of the present invention;

3B is a detailed flowchart illustrating a method of assigning attribute information to a polygon or a multipolygon according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

10: data input module unit 20: generation module unit

21: object selection module 22: confirmation and analysis module

23: object generation module 30: attribute information setting module

40: attribute information attachment module portion 50: search extraction module portion

60: change module unit 61: partial additional module

62: partial removal module 63: release module

70: database module unit 80: display module unit

90: control module

The present invention relates to a multipolygon generation system, and in particular, in managing a planar object on a digital map, by assigning certain attribute information to each polyline belonging to a polygon, the digital map object does not create a new object using only the attribute information. The present invention relates to a multipolygon generating system using the attribute information of and a method thereof.

In general, in the case of representing a geometric element in a digital map, spatial data is represented by using elements of points, lines, and faces.

Specifically, in the case of expressing a surface in a digital map, various features such as road boundaries, buildings, rivers, and riverbed boundary surfaces are expressed in plane form and displayed in color and pattern. That is, in most cases, one surface object represents one feature, but two or more surface objects are required to express one feature.

Most systems that currently edit or manage digital maps represent polygonal shapes as polygon objects. If there is another surface shape inside, the surface object inside is called a hole. In addition, a plurality of polygons are formed to form an object is called a multipolygon (MultiPolygon). In this case, in the case of expressing the color of the polygon, the hole does not display the color. That is, it shows a perforated surface shape.

When performing input and editing operations for digital map (DWG file) production using the above-described method, polygons and multi-polygons may be represented only by closed-polylines connected to both ends.

At this time, the polygon object and the multipolygon object do not exist. For example, in the case of representing a polygon with one hole, another closed polyline is displayed in the region inside the closed polyline, and the multipolygon having two facets can be expressed by separating them into individual closed polylines.

However, since a single feature can be represented by multiple objects, the user can draw a lot of attention by inputting and editing a digital map, or by considering other objects involved when searching for a feature in the figure. Work efficiency is reduced.

Also, in the case of hole polygons, when the color is displayed, the whole hole is not filled, but the hole inside is not displayed but the hole is formed.

However, in the conventional hole display method, two closed polylines, that is, an outer polyline and an inner polyline are overlapped to cover an inner polyline (hole), or two polylines are selected, and thus cannot be represented as one perforated object. .

When importing or exporting data formats from other systems that support polygons or multipolygons, additional work is required to maintain the object type. In other words, when importing, there is a problem in that information of a separated object must be managed separately, and when the export is performed, the separated object must be edited as a single object again in the system of the stored file.

On the other hand, the numerical map can be checked using the Autocad system. When using a higher version of the CAD system, polygon and multipolygon objects exist. It is impossible to check, which causes compatibility problems.

And while other applications can be developed and used to create a new polygon object type, there was a problem that can not be edited and modified without having the application according to the object created by the other application stored as a file.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide property information without creating a new object by assigning certain property information to each polyline belonging to a polygon in managing a planar object on a digital map. It is intended to create and manage polygons and multipolygons using only bays.

The system of the present invention for implementing such a characteristic technical idea, in a multipolygon generation system using attribute information of a digital map object, receives a digital map produced using a digital mapping software (A) from an operator. A data input module unit 10; An object selection module 21 for selecting a polyline object on a numerical drawing, and a confirmation / analysis module 22 for analyzing a geometric relationship in consideration of whether the polyline object is closed, intersected, or present in the polyline. A generation module unit 20 including an object generation module 23 for generating a multipolygon as an MPolygon object; An attribute information setting module unit 30 for setting a value of attribute information attached to the polyline; An attribution information attachment module unit (40) for attaching the attribution information to a polyline; A search extraction module unit 50 for searching the MPolygon existing in the numerical drawing; The database module unit includes a partial addition module 61 for adding a polygon included in a specific registered MPolygon, a partial removal module 52 for deleting a polygon included in a specific registered MPolygon, and a specific registered MPolygon. A change module unit 60 including a release module 53 to remove from and remove attribute information attached to the polyline; A database module unit 70 for registering and managing MPolygon objects as a list; A display module unit 80 for displaying the MPolygon extracted through the search extraction module unit using a screen or an output device provided separately; And a control module unit 90 for controlling the components 10, 20, 30, 40, 50, 60, 70, and 80 to generate a multipolygon using attribute information of the numerical map object. It includes.

At this time, the attribute information setting module unit 30 includes a MID indicating an intrinsic value, a PID indicating a serial number of polygons belonging to the multipolygon, and an individual polyline belonging to the polygon in order to distinguish the multipolygons in the numerical drawing. And an attribute information table including a HOLE indicating whether or not the unit is a (Hole), and the attribute information attaching module 40 is configured to display attribute information according to the result when the polyline selected by the user in the numerical drawing forms a multipolygon. If the configuration and attach the attribute information to each polyline, or if the polyline selected by the user forms a polygon (polygon), the attribute information is configured to attach the attribute information to each polyline.

Preferably, the MPolygon is a polygon object when the number of polygons in the MPolygon is one, and is a multipolygon object when the number of polygons is one or more.

On the other hand, in the multi-polygon generating method using the attribute information of the digital map object, (a) the control module unit 90 receives the information of the digital map from the operator; (b) selecting, by the control module, the processed object after searching for the object to which the attribute information is attached; (c) checking, by the control module unit, attribute information values of MID, PID, and HOLE; (d) searching for a polygon in the MPolygon by using the 'PID' when the MPolygon is found among the objects stored in the database module unit 70 by using the 'MID' in the attribute information; (e) determining whether the control module unit is 'HOLE = 1' when the polygon is searched as a result of the determination of step (d); And (f) registering the processing object as a Hole object in the searched polygon by the control module unit when 'HOLE = 1' as a result of the determination of step (e); It characterized in that to perform.

Preferably before the step (a), the step of receiving the control module information of the numerical map from the operator; Characterized in further performing.

More preferably, the step (a) may include: (a-1) searching for a polygon in the MPolygon by the control module; (a-2) generating, by the control module, attribute information according to the polygon; (a-3) setting, by the control module, the attribute information value of the extracted polygon to 'MID = id, PID = count, HOLE = 0'; And (a-4) attaching the set attribute information to the boundary polyline in the MPolygon by the control module unit. It characterized in that to perform.

Also preferably, before the step (a-1), the control module unit generates a unique id value; And initializing, by the control module, 'count = 0' to process a polygon object or a multipolygon object constituting a numerical map. Characterized in further performing.

Also preferably, after the step (a-4), the control module searching for the hole polyline in the MPolygon; Generating, by the control module, attribute information according to the hole polyline; Setting, by the control module, the attribute information of the extracted hole polyline to 'MID = id, PID = count, HOLE = 1'; And attaching, by the control module unit, the set attribute information to a hole polyline in a polygon. Characterized in further performing.

Also preferably, the step (d) may include: generating, by the control module, a new MPolygon when the MPolygon is not found; It characterized in that to perform.

Also preferably, the step (d) may include: generating, by the control module, a new polygon when the polygon is not found; It characterized in that to perform.

Also preferably, the step (e) may include: registering, by the control module unit, the processing object as a boundary object in the searched polygon when 'HOLE = 0'; It characterized in that to perform.

And preferably, after step (f), (f-1) registering the new polygon with a new MPolygon by the control module; And (f-2) registering the new MPolygon by the control module to the database module. Characterized in further performing.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It should be interpreted to mean meanings and concepts. In addition, when it is determined that the detailed description of the known function and its configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, it should be noted that the detailed description is omitted.

First, the multipolygon generating system of the present invention performs a function of assigning certain attribute information to each polyline belonging to a polygon as illustrated in FIG. 1, by using a digital mapping software A from an operator. The data input module unit 10 receiving the produced digital map, and the generation module unit 20 for generating a MPolygon object by selecting a polyline object to be created as a polygon in the numerical drawing and analyzing the geometric relationship of the selected polyline. ), The attribute information setting module unit 30 for setting the value of the attribute information attached to the polyline, the attribute information attachment module unit 40 for attaching the set attribute information to the polyline, and the MPolygon present in the numerical drawing. A search extraction module unit 50 for searching, a change module unit 60 for removing or attaching attribute information attached to a polyline in a digital map, and a MPolygon object; The display module unit 80 for displaying and using the display unit or an output device provided separately so that the operator can check the database module unit 70 and the MPolygon extracted through the search extraction module unit 50. And a control module unit 90 for controlling the components 10, 20, 30, 40, 50, 60, 70, and 80 according to the procedure of the operation program so that the polygons can be searched, created, and edited on the numerical drawing. It consists of

In the present embodiment, the processing of the digital map is performed by the digital map production software A, and the description thereof will be omitted below, but the series of production methods disclosed in the present invention are part of the digital map production software A. It is desirable to understand that functionality is included. In other words, by receiving the numerical map stored in the DWG file using Autocad, it can be confirmed.

Here, the numerical mapping software A is set to AutoCAD, but the present invention is not limited thereto.

Specifically, when the generation module unit 20 selects the polyline object on the numerical drawing by using the object selection module 21, the identification / analysis module 22 closes, crosses, or polylines the polyline object. After analyzing the geometric relationship in consideration of the presence of the inside, etc., as shown in FIG. 2A through the object generation module 23 generates a multipolygon (MultiPolygon) as an MPolygon object.

For example, if the polylines are not closed or cross each other, no polygons can be formed, and the identification / analysis module 22 determines the polylines existing inside the polylines as HOLE.

For reference, a multipolygon includes a plurality of polygons to form a single object. In other words, MPolygon can manage objects more efficiently by processing polygons and multipolygons as a model. In other words, when the number of polygons in the MPolygon is one, the polygon object becomes a Polygon object, and when the number of polygons is one or more, it is preferable that the polygon is regarded as a MultiPolygon.

In addition, the attribute information setting module unit 30 configures an attribute information table including MID, PID, and HOLE to set attribute information attached to each polyline.

Specifically, MID represents an eigenvalue for distinguishing a multipolygon in a numerical drawing, PID represents a serial number of polygons belonging to a multipolygon, and HOLE represents a hole for each polyline belonging to the polygon. A value of 1 indicates that it is a Hole object, and a value of 0 means that it is a Boundary object.

In addition, the attribute information attaching module unit 40 performs a function of attaching the attribute information set to the polyline as shown in FIG. 2B.

Specifically, the attribute information (MID, PID, HOLE) described above is configured to attach attribute information to each polyline. When the polyline selected by the user in the numerical drawing forms a multipolygon, the attribute information is configured and the attribute information is attached to each polyline.

On the other hand, when the polyline selected by the user in the numerical drawing forms a polygon, as described above, the attribute information (MID, PID, HOLE) is configured to attach the attribute information to each polyline. In this case, the polyline may include a hole.

In addition, the search extraction module unit 50 searches for a polyline on a digital map, generates a multipolygon according to the digital map, extracts a polyline in the multipolygon, and registers a processing object as a boundary object when the HOLE is 0. If this is 1, the MPolygon is created, stored and managed by registering the processing object as a Hole object.

Here, the MPolygon stored in the database module unit 70 may be edited or changed and stored in another format.

In addition, the change module unit 60 converts the polygon into a closed polyline by adding, removing, or removing all attribute information of the MPolygon.

Specifically, the change module unit 60 considers the geometric relationship using the identification analysis module 22 together with the polylines belonging to the pre-registered MPolygon and the polylines selected by the user, and by the setting module unit 30 By reconfiguring the attribute information and attaching it to the polyline, a partial addition module 51 for adding a polygon to the MPolygon as shown in FIG. 2C and a part of the polygon selected by the operator from the previously registered MPolygon as shown in FIG. 2D are deleted. A partial removal module 52 and a release module 53 for removing attribute information attached to all polylines belonging to a previously registered MPolygon as shown in FIG. 2E.

In this case, the release module 53 preferably removes the previously registered MPolygon object from the database module unit 70.

As shown in FIG. 2F, the control module unit 90 includes a data input module unit 10, a generation module unit 20, an attribute information setting module unit 30, an attribute information attaching module unit 40, By controlling the search extraction module unit 50, the change module unit 60, the database module unit 70, and the display module unit 80, a multipolygon is generated using the attribute information of the numerical map object.

Hereinafter, a method of generating a multipolygon using attribute information of a digital map object through application software having the above-described configuration will be described with reference to FIGS. 3A and 3B.

First, as shown in FIG. 3A, the control module unit 90 receives a numerical drawing manufactured in another file format (SHP, NGI, etc.) from an operator (S2).

In the present embodiment, the resin map surface is set to receive from the outside, but the present invention is not limited thereto, and the operation can be performed even when only the execution screen (DWG surface) is executed.

Next, the control module unit 90 gives attribute information to the polyline (S4).

That is, referring to FIG. 3B, the S4 step of giving attribute information to the polyline is described with reference to FIG. 3B. The control module unit 90 generates a unique id value (S4a). Here, id may be understood as representing a unique value for identifying a polygon or multipolygon.

Next, the control module unit 90 initializes 'count = 0' to process the polygon object or the multipolygon object constituting the numerical map (S4b). Here, count can be understood as representing the number of polygon objects or multipolygon objects constituting the numerical map.

First, the control module unit 90 attaches the attribute information to the boundary polyline in the MPolygon (S4c).

In detail, the control module unit 90 searches for polygons in the MPolygon on the numerical map (S4c1), and generates attribute information (MID, PID, HOLE) according to the polygons (S4c2). At this time, the count is preferably set to 'count + 1'. That is, the polygon is repeatedly performed in the MPolygon.

The control module unit 90 sets the attribute information value of the extracted polygon to 'MID = id, PID = count, HOLE = 0' (S4c3), and attaches the set attribute information to the boundary polyline in the MPolygon.

Next, the control module unit 90 attaches the attribute information to the boundary polyline in the polygon (S4d).

Specifically, the control module unit 90 searches for the hole polyline in the MPolygon on the numerical map (S4d1), and then generates attribute information (MID, PID, HOLE) according to the polyline (S4d2). At this time, the hole polyline in the MPolygon is repeatedly performed.

The control module unit 90 sets the attribute information value of the extracted hole polyline to 'MID = id, PID = count, HOLE = 1' (S4d3), and attaches the set attribute information to the hole polyline in the polygon. .

Next, the control module unit 90 searches for an object having attribute information attached to the numerical drawing, and then selects the processed object (S6).

At this time, the control module unit 90 checks the attribute information (MID, PID, HOLE) attached to the processed object (S8).

The control module unit 90 determines whether the MPolygon is searched among the objects stored in the database module unit 70 using 'MID' among the attribute information (S10).

In step S10, when the MPolygon is searched, the control module unit 90 determines whether the polygon is searched for in the MPolygon by using 'PID' (S12).

In the step S12, when the polygon is searched, the control module unit 90 determines whether 'HOLE = 1' (S14).

That is, when the determination result of step S14 is 'HOLE = 1', the control module unit 90 registers the processing object as a hole object in the searched polygon (S16).

Next, the control module unit 90 registers the polygon in the MPolygon (S18).

That is, in the case of a newly created new polygon, the polygon is registered in MPolygon.

At this time, the control module unit 90 sets the unique key of the MPolygon to 'MID' (S20).

Next, the control module unit 90 registers the MPolygon in the database module unit 70 (S22). This registers the newly created MPolygon in the database module unit 70.

Finally, the control module unit 90 registers and manages a new MPolygon including a new polygon and a new polygon in the database module unit 70.

On the contrary, when the determination result of step S14 is 'HOLE = 0', the control module unit 90 registers the processing object as a boundary object in the searched polygon (S24).

If the polygon is not found in the step S12, the control module unit 90 generates a new polygon (S26).

On the other hand, in step S10, when the MPolygon is not found, the control module unit 90 generates a new MPolygon (S28).

According to the present invention, by assigning only attribute information to an object without creating a new object, there is an effect of simplifying the work procedure to create and manage polygons and multipolygons.

In addition, the files produced by the AutoCAD system or other systems that support polygons are compatible with each other, thereby increasing the efficiency of the work by simplifying the work procedure.

As described above and described with reference to a preferred embodiment for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described as described above, it is a deviation from the scope of the technical idea It will be understood by those skilled in the art that many modifications and variations can be made to the invention without departing from the scope of the invention. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (15)

In a multipolygon generation system using attribute information of a digital map object, A data input module unit 10 which receives a numerical map produced by the numerical mapping software A from a worker; A generation module unit 20 for generating a MPolygon (MultiPolygon) object by selecting a polyline object to be created as a polygon in a numerical drawing and analyzing a geometric relationship of the selected polyline; An attribute information setting module unit 30 for setting a value of attribute information attached to the polyline; An attribution information attachment module unit (40) for attaching the attribution information to a polyline; A search extraction module unit 50 for searching the MPolygon present in the numerical drawing; A change module unit 60 for converting to a general polyline by adding, removing, or removing all attribute information of the MPolygon to the MPolygon; A database module unit 70 for storing a numerical map, an MPolygon object, a polygon object, a polyline object, and attribute information values received from an operator; A display module unit 80 for displaying the MPolygon extracted through the search extraction module unit using a screen or an output device provided separately; And A control module unit 90 for controlling the components 10, 20, 30, 40, 50, 60, 70, and 80 to generate a multipolygon using attribute information of the numerical map object; Multipolygon generation system using the attribute information of the digital map object, characterized in that it comprises a. The method of claim 1, The generation module unit 20, An object selecting module 21 for selecting the polyline object on the numerical drawing; A confirmation / analysis module 22 for analyzing a geometric relationship in consideration of whether the polyline object is closed, intersected, or present in the polyline; And An object generation module 23 for generating a multipolygon as an MPolygon object; Multipolygon generation system using the attribute information of the digital map object, characterized in that it comprises a. The method of claim 1, The attribute information setting module unit 30, MID (MultiPolygonID) representing eigenvalues to distinguish MultiPolygons in numerical drawings, PID (PolygonID) representing serial numbers of polygons belonging to a multipolygon, and whether it is a hole for an individual polyline belonging to a polygon Multi-polygon generation system using the attribute information of the digital map object, characterized in that it comprises an attribute information table including a HOLE indicating. The method of claim 1, The attribute information attachment module 40, If the polyline selected in the digital drawing forms a multipolygon, the attribute information is constructed accordingly and the attribute information is attached to each polyline, or if the polyline selected by the user forms a polygon, the attribute information is And constructing and attaching attribute information to each polyline. The method of claim 1, The change module unit 60, A partial adding module 61 for adding a polygon included in a specific registered MPolygon; A partial removal module 62 for deleting a polygon included in a specific registered MPolygon; And A release module 63 for removing a specific registered MPolygon from the database module unit and for removing attribute information attached to a polyline; Multipolygon generation system using the attribute information of the digital map object, characterized in that it comprises a. The method of claim 1, The MPolygon is, When the number of polygons in the MPolygon is one, it becomes a Polygon object, and if it is one or more, it is a MultiPolygon object. In the multi-polygon generation method using the attribute information of the digital map object, (a) the control module unit 90 giving attribution information to the polyline; (b) selecting, by the control module, the processed object after searching for the object to which the attribute information is attached; (c) checking, by the control module unit, attribute information values of MID, PID, and HOLE; (d) searching for a polygon in the MPolygon by using the 'PID' when the MPolygon is found among the objects stored in the database module unit 70 by using the 'MID' in the attribute information; (e) determining whether the control module unit is 'HOLE = 1' when the polygon is searched as a result of the determination of step (d); And (f) when the determination result of step (e) indicates that 'HOLE = 1', the control module registers the processing object as a Hole object (individual polygon object belonging to the polygon) to the searched polygon; Multipolygon generation method using the attribute information of the digital map object, characterized in that for performing. The method of claim 7, wherein Before step (a), Receiving, by the control module unit, information of a numerical map from an operator; Multipolygon generation method using the attribute information of the digital map object, characterized in that for further performing. The method of claim 7, wherein Step (a) is, (a-1) searching for a polygon in the MPolygon by the control module; (a-2) generating, by the control module, attribute information according to the polygon; (a-3) setting, by the control module, the attribute information value of the extracted polygon to 'MID = id, PID = count, HOLE = 0'; And (a-4) attaching the set attribute information to the boundary polyline in the MPolygon by the control module; Multipolygon generation method using the attribute information of the digital map object, characterized in that for performing. The method of claim 9, Before step (a-1), Generating a unique id value by the control module unit; And Initializing, by the control module, 'count = 0' to process a polygon object or a multipolygon object constituting a numerical map; Multipolygon generation method using the attribute information of the digital map object, characterized in that for further performing. The method of claim 9, After the step (a-4), Searching the hole polyline in the MPolygon by the control module; Generating, by the control module, attribute information according to the hole polyline; Setting, by the control module, the attribute information of the extracted hole polyline to 'MID = id, PID = count, HOLE = 1'; And Attaching, by the control module unit, the set attribute information to a hole polyline in a polygon; Multipolygon generation method using the attribute information of the digital map object, characterized in that for further performing. According to claim 7, In step (d), Generating, by the control module, a new MPolygon when the MPolygon is not found; Multipolygon generation method using the attribute information of the digital map object, characterized in that for performing. According to claim 7, In step (d), Generating, by the control module, a new polygon when the polygon is not found; Multipolygon generation method using the attribute information of the digital map object, characterized in that for performing. The method of claim 7, wherein The step (e) is Registering 'processing object' as a boundary object in the searched polygon by the control module when 'HOLE = 0'; Multipolygon generation method using the attribute information of the digital map object, characterized in that for performing. The method of claim 7, wherein After step (f), (f-1) registering the new polygon with the new MPolygon by the control module; And (f-2) registering the new MPolygon by the control module to the database module; Multipolygon generation method using the attribute information of the digital map object, characterized in that for further performing.

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