CN117453708A - Bidirectional linkage inter-conversion method for GIS (geographic information system) graph and CAD (computer aided design) graph - Google Patents
Bidirectional linkage inter-conversion method for GIS (geographic information system) graph and CAD (computer aided design) graph Download PDFInfo
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Abstract
The application discloses a bidirectional linkage interconversion method of GIS graphics and CAD graphics, and relates to the technical field of computer science and geographic information systems. The method comprises the steps of firstly combining a reflection mechanism with a factory design mode to form a factory design mode, then respectively packaging each pair of identical graphic operations in a GIS design scene and a CAD design scene into a unified product class based on the factory design mode, finally determining the corresponding product class according to the first graphic operation when the first graphic operation is found to newly occur in the first design scene, then calling a second graphic construction function of the product class by using a calling function in the reflection mechanism, and combining the first graphic operation result data obtained based on the first graphic operation to construct and obtain second graphic operation result data so as to reflect the data and the operation in the first design scene into the second design scene and realize unified linkage operation and linkage operation result data.
Description
Technical Field
The invention belongs to the technical field of geographic information systems and computer aided design, and particularly relates to a bidirectional linkage mutual conversion method of GIS graphics and CAD graphics.
Background
Geographic information systems (GIS, geographic Information System or Geo-Information system) and computer aided design (CAD, computer Aided Design) are software tools widely used in different fields, where GIS is commonly used for mapping, geospatial data management and analysis, and CAD is commonly used for design, drawing and engineering planning. In many applications, it is desirable to correlate GIS graphics with CAD graphics to ensure consistency and accuracy of data. Traditionally, such linkage requires manual operation, which is prone to data inconsistency.
At present, although some software can realize unidirectional conversion from GIS graphics to CAD graphics, few tools are available for realizing bidirectional conversion (namely, editing CAD graphics in CAD software, reflecting the change result to associated GIS data, and updating the change result to associated CAD data when editing GIS graphics in GIS software). This bi-directional switching linkage is very important for users who need to switch frequently between GIS and CAD platforms, and can improve the working efficiency and reduce the risk of inconsistent data.
Disclosure of Invention
The invention aims to provide a bidirectional linkage and mutual conversion method of GIS graphics and CAD graphics, which is used for solving the problems that the working efficiency of a user is low and the data on two sides are inconsistent because the bidirectional linkage and mutual conversion of the GIS graphics and the CAD graphics cannot be realized in the existing software.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in a first aspect, a bidirectional linkage and mutual transformation method for a GIS graph and a CAD graph is provided, which includes:
establishing linkage of a GIS platform and a CAD platform: combining a reflection mechanism and a factory design mode to form a factory-like design mode, wherein the factory-like design mode is used for associating GIS graphic operation with CAD graphic operation;
based on the class factory design mode, respectively packaging each pair of identical graphic operations in a GIS design scene and a CAD design scene into a unified product class so as to correlate the GIS design scene and the CAD design scene;
when a first graphic operation is found to newly occur in a first design scene, determining a corresponding product class according to the first graphic operation, then calling a second graphic construction function of the product class by using a calling function in the reflection mechanism, and combining first graphic operation result data obtained based on the first graphic operation, constructing and obtaining second graphic operation result data so as to reflect data and operations in the first design scene into the second design scene, and realizing unified linkage operation and linkage operation result data, wherein the first design scene and the second design scene are mutually the GIS design scene and the CAD design scene, the first graphic operation is the CAD graphic operation when the first design scene is the GIS design scene, the second graphic construction function is the CAD graphic construction function when the first design scene is the GIS design scene, and the first graphic operation result data and the CAD graphic operation result data are the CAD graphic operation when the first design scene is the GIS design scene.
Based on the above summary of the invention, a new scheme for realizing bidirectional linkage and mutual conversion of GIS graphics and CAD graphics based on a reflection mechanism and a factory design mode is provided, namely, linkage of a GIS platform and a CAD platform is established firstly: combining a reflection mechanism and a factory design mode to form a factory-like design mode, then respectively packaging each pair of identical graphic operations in a GIS design scene and a CAD design scene into a unified product class based on the factory-like design mode so as to correlate the GIS design scene and the CAD design scene, finally determining the corresponding product class according to the first graphic operation when finding that the first graphic operation newly occurs in the first design scene, then calling a second graphic construction function of the product class by using a calling function in the reflection mechanism, and combining the first graphic operation result data obtained based on the first graphic operation to construct and obtain second graphic operation result data so as to reflect the data and the operation in the first design scene into the second design scene and realize unified linkage operation and linkage operation result data.
In one possible design, the class factory design schema is also used to create a static object, where the static object is used to obtain information related to the GIS graphic operation or the CAD graphic operation via the reflection mechanism.
In one possible design, the related information includes a program set, a module, a type, a field, an attribute, a manner, and/or an event.
In one possible design, associating GIS graphic operations with CAD graphic operations includes: and placing all the product classes in a class library, wherein each product class of all the product classes is respectively associated with a pair of GIS graphic operations and CAD graphic operations and corresponds to a static mode for acquiring operation types so as to enable the class factory design mode to call and acquire all supported operation combination strings.
In one possible design, the GIS graphic operation or the CAD graphic operation includes a graphic addition operation, a graphic modification operation, a graphic deletion operation, a graphic drag operation, a graphic ranking operation, and/or a graphic annotation operation.
In one possible design, the class factory design mode maps the operation combination into a product class through a hash table, wherein a key name in the hash table is an operation type name, and a key value in the hash table is a product class corresponding to the key name.
In one possible design, the first graphical operation includes a transmission line path simulation operation and/or a transmission line tower placement simulation operation.
In one possible design, when the first graphic operation includes a transmission line path simulation operation, reflecting data and operations in the first design scene into a second design scene, and implementing unified linkage operation and linkage operation result data, including:
drawing a power transmission line path diagram on a two-dimensional GIS platform in a GIS design scene and recording section coordinates of a place where a power transmission line path passes;
generating products according to the section coordinates, and sending the information of the section coordinates to a CAD platform in a CAD design scene through a reflection mechanism;
and drawing a section diagram of the transmission line path on the CAD platform according to the information of the section coordinates.
In one possible design, when the first graphic operation includes a transmission line tower arrangement simulation operation, reflecting data and operations in the first design scene into a second design scene, and implementing unified linkage operation and linkage operation result data, including:
simulating transmission line tower arrangement on the basis of a two-dimensional plane section diagram in a CAD platform, simulating transmission line tower arrangement on the basis of a path diagram linked in a GIS platform, and ensuring synchronous linkage of tower operation, wherein the tower operation comprises tower deleting operation, tower moving operation and/or tower lifting operation.
In one possible design, the CAD platform is a CAD software tool developed a second time using a teicha.
The beneficial effect of above-mentioned scheme:
the invention creatively provides a new scheme for realizing bidirectional linkage and mutual conversion of GIS graphics and CAD graphics based on a reflection mechanism and a factory design mode, namely, linkage of a GIS platform and a CAD platform is established firstly: combining a reflection mechanism and a factory design mode to form a factory-like design mode, then respectively packaging each pair of identical graphic operations in a GIS design scene and a CAD design scene into a unified product class based on the factory-like design mode so as to correlate the GIS design scene and the CAD design scene, finally determining the corresponding product class according to the first graphic operation when finding that the first graphic operation newly occurs in the first design scene, then calling a second graphic construction function of the product class by using a calling function in the reflection mechanism, and combining the first graphic operation result data obtained based on the first graphic operation to construct and obtain second graphic operation result data so as to reflect the data and the operation in the first design scene into the second design scene and realize unified linkage operation and linkage operation result data.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a bidirectional linkage inter-conversion method of a GIS graphic and a CAD graphic provided in an embodiment of the present application.
Fig. 2 is an exemplary diagram of an effect of bidirectional linkage and mutual conversion between a GIS graphic and a CAD graphic provided in an embodiment of the present application, where (a) in fig. 2 shows the GIS graphic and (b) in fig. 2 shows the CAD graphic.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present invention, but is not intended to limit the present invention.
It should be understood that although the terms first and second, etc. may be used herein to describe various objects, these objects should not be limited by these terms. These terms are only used to distinguish one object from another. For example, a first object may be referred to as a second object, and similarly a second object may be referred to as a first object, without departing from the scope of example embodiments of the invention.
It should be understood that for the term "and/or" that may appear herein, it is merely one association relationship that describes an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: three cases of A alone, B alone or both A and B exist; as another example, A, B and/or C, can represent the presence of any one of A, B and C or any combination thereof; for the term "/and" that may appear herein, which is descriptive of another associative object relationship, it means that there may be two relationships, e.g., a/and B, it may be expressed that: the two cases of A and B exist independently or simultaneously; in addition, for the character "/" that may appear herein, it is generally indicated that the context associated object is an "or" relationship.
Examples
As shown in fig. 1, the bidirectional linkage and mutual conversion method of the GIS graphic and the CAD graphic provided in the first aspect of the present embodiment may include, but is not limited to, the following steps S1 to S3.
S1, linkage of a GIS platform and a CAD platform is established: and combining the reflection mechanism and the factory design mode to form a factory-like design mode, wherein the factory-like design mode is used for associating GIS graphic operation with CAD graphic operation.
In step S1, the reflection mechanism is a common technique in the prior art, and it means that, when the program runs, the information of the class can be obtained and the method and the attribute of the class can be dynamically used, so that the reflection provides a programming way, and the programmer can obtain the relevant information of the component parts during the running period of the program. Specifically, the class factory design mode is further used for creating a static object, wherein the static object is used for acquiring relevant information of the GIS graphic operation or the CAD graphic operation through the reflection mechanism. In detail, the related information includes, but is not limited to, information including program sets, modules, types, fields, attributes, manners and/or events, etc., and the foregoing information concepts are some basic overviews in programming, and can be understood as follows: assuming that an engineering (system) is composed of a plurality of projects, a program set is the personnel and equipment in the project, a module is the engineering part, the manufacturing cost part, the comprehensive part and the like, the types are workers, technicians and personnel, the fields and attributes are the names and skin colors of the personnel, and the methods and events are how the personnel walk and are attacked.
In the step S1, the factory design mode is a design mode for creating objects, which creates objects through a common interface or base class without exposing specific implementation of the objects, so that repetition of codes can be reduced and the system can be made more flexible and expandable. The main purpose of the factory design mode is to separate the creation and use of objects, thereby reducing the degree of coupling, and it can hide the specific implementation details of the objects, making the code easier to understand and maintain. Thus, after associating the GIS graphic operation with the CAD graphic operation, the CAD platform may return the object to the GIS platform in a base class type manner and mask the creation details of the object. Specifically, the plant design mode may be, but not limited to, any one of a simple plant (i.e., one plant object is used to produce any product in the same hierarchical structure, without supporting expansion of added products), a plant method (i.e., a plurality of plant objects are used to produce corresponding fixed products in the same hierarchical structure, with support of expansion of added products) design mode, and an abstract plant (i.e., a plurality of plant objects are used to produce all products of different product families, without support of expansion of added products, with support of added product families) design mode.
In the step S1, the GIS graphic operation is specifically associated with the CAD graphic operation, including but not limited to: and placing all the product classes in a class library, wherein each product class of all the product classes is respectively associated with a pair of GIS graphic operations and CAD graphic operations and corresponds to a static mode for acquiring operation types so as to enable the class factory design mode to call and acquire all supported operation combination strings. In detail, the GIS graphic operation or the CAD graphic operation includes, but is not limited to, a graphic addition operation, a graphic modification operation, a graphic deletion operation, a graphic drag operation, a graphic ranking operation, and/or a graphic annotation operation, etc.
In step S1, specifically, the class factory design mode maps the operation combination into a product class through a hash table, where a key name in the hash table is an operation type name, and a key value in the hash table is a product class corresponding to the key name. When the object is initialized, the object type name can be used for searching and calling a static mode in the class library to obtain a key value sequence of the operation combination, then the operation combination is mapped into a product class, and a calling function in the reflection mechanism is used for calling a construction function of the product class to construct and return to a final product.
In the step S1, the GIS software platform may specifically be a THGIS software tool of the geographic information system of fig. hange, and the CAD software platform may specifically be a CAD software tool obtained by using teicha. In addition, the CAD platform can be adapted to different CAD SDKs (Software Development Kit, software development kits) so that CAD SDKs of different manufacturers can be used, and further when other functional modules use CAD functions, a universal interface can be directly called to realize CAD related functions; and the specific establishment process of the linkage is completed by manual establishment of a programmer.
S2, based on the class factory design mode, packaging each pair of identical graphic operations in a GIS design scene and a CAD design scene into a unified product class respectively so as to correlate the GIS design scene and the CAD design scene.
In the step S2, the pairs of identical graphic operations may include, but are not limited to: a graphics addition operation in a GIS design scene and a graphics addition operation in the CAD design scene, a graphics modification operation in a GIS design scene and a graphics modification operation in the CAD design scene, a graphics deletion operation in a GIS design scene and a graphics deletion operation in the CAD design scene, a graphics drag operation in a GIS design scene and a graphics drag operation in the CAD design scene, a graphics ranking operation in a GIS design scene and a graphics ranking operation in the CAD design scene and/or a graphics annotation operation in a GIS design scene and a graphics annotation operation in the CAD design scene, and so on. Each product class packaged for each pair of identical graphics operations is placed in the class library and corresponds to the static manner in which the operation type is obtained. In addition, the specific packaging process of the product class is completed by manual packaging by a programmer.
S3, when a first graphic operation is found to newly occur in a first design scene, determining a corresponding product class according to the first graphic operation, then calling a second graphic construction function of the product class by using a calling function in the reflection mechanism, and combining first graphic operation result data obtained through the first graphic operation to construct second graphic operation result data so as to reflect data and operations in the first design scene into the second design scene, and achieve unified linkage operation and linkage operation result data, wherein the first design scene and the second design scene are mutually the GIS design scene and the CAD design scene, the first graphic operation is the GIS graphic operation when the first design scene is the GIS design scene, the first graphic construction function is the CAD graphic operation when the first design scene is the CAD design scene, the second graphic construction function is the CAD graphic construction function when the first design scene is the GIS design scene, and the first graphic operation result data and the GIS operation result data are the CAD graphic operation result graph when the first design scene is the GIS design scene.
In the step S3, since the graphic operation and the product class have a correspondence relationship at the time of packaging, the corresponding product class can be determined according to the first graphic operation. Specifically, the first graphic operation includes, but is not limited to, a transmission line path simulation operation and/or a transmission line tower arrangement simulation operation, etc. In detail, when the first graphic operation includes a transmission line path simulation operation, data and operations in the first design scene are reflected to a second design scene, and unified linkage operation and linkage operation result data are realized, including but not limited to: drawing a power transmission line path diagram on a two-dimensional GIS platform in a GIS design scene and recording section coordinates of a place where a power transmission line path passes; generating products according to the section coordinates, and sending the information of the section coordinates to a CAD platform in a CAD design scene through a reflection mechanism; and drawing a section diagram of the transmission line path on the CAD platform according to the information of the section coordinates. In detail, when the first graphic operation includes a transmission line tower arrangement simulation operation, data and operations in the first design scene are reflected to a second design scene, and unified linkage operation and linkage operation result data are realized, including but not limited to: simulating transmission line tower arrangement on the basis of a two-dimensional plane section view in a CAD platform, and simulating transmission line tower arrangement on the basis of a path view linked in a GIS platform, so as to ensure synchronous linkage of tower operations, wherein the tower operations comprise, but are not limited to, tower deleting operation, tower moving operation, tower lifting operation and/or the like. As shown in fig. 2, the bidirectional linkage inter-conversion effect of the simulated operation of all devices (such as wire lines, towers, cable wells, transformers, etc.) and lines in the power grid design is illustrated, wherein (a) in fig. 2 illustrates a GIS graph obtained by performing the simulated operation based on a GIS design scene, and (b) in fig. 2 illustrates a CAD graph obtained by performing the linkage inter-conversion based on a CAD design scene.
Based on the bidirectional linkage and mutual conversion method of the GIS graph and the CAD graph described in the steps S1 to S3, a new scheme for realizing bidirectional linkage and mutual conversion of the GIS graph and the CAD graph based on a reflection mechanism and a factory design mode is provided, namely, linkage of a GIS platform and a CAD platform is established firstly: combining a reflection mechanism and a factory design mode to form a factory-like design mode, then respectively packaging each pair of identical graphic operations in a GIS design scene and a CAD design scene into a unified product class based on the factory-like design mode so as to correlate the GIS design scene and the CAD design scene, finally determining the corresponding product class according to the first graphic operation when finding that the first graphic operation newly occurs in the first design scene, then calling a second graphic construction function of the product class by using a calling function in the reflection mechanism, and combining the first graphic operation result data obtained based on the first graphic operation to construct and obtain second graphic operation result data so as to reflect the data and the operation in the first design scene into the second design scene and realize unified linkage operation and linkage operation result data.
Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A bidirectional linkage and mutual conversion method of GIS graphics and CAD graphics is characterized by comprising the following steps:
establishing linkage of a GIS platform and a CAD platform: combining a reflection mechanism and a factory design mode to form a factory-like design mode, wherein the factory-like design mode is used for associating GIS graphic operation with CAD graphic operation;
based on the class factory design mode, respectively packaging each pair of identical graphic operations in a GIS design scene and a CAD design scene into a unified product class so as to correlate the GIS design scene and the CAD design scene;
when a first graphic operation is found to newly occur in a first design scene, determining a corresponding product class according to the first graphic operation, then calling a second graphic construction function of the product class by using a calling function in the reflection mechanism, and combining first graphic operation result data obtained based on the first graphic operation, constructing and obtaining second graphic operation result data so as to reflect data and operations in the first design scene into the second design scene, and realizing unified linkage operation and linkage operation result data, wherein the first design scene and the second design scene are mutually the GIS design scene and the CAD design scene, the first graphic operation is the CAD graphic operation when the first design scene is the GIS design scene, the second graphic construction function is the CAD graphic construction function when the first design scene is the GIS design scene, and the first graphic operation result data and the CAD graphic operation result data are the CAD graphic operation when the first design scene is the GIS design scene.
2. The method of claim 1, wherein the class factory design model is further used to create a static object, wherein the static object is used to obtain information about the GIS graphic operation or the CAD graphic operation through the reflection mechanism.
3. The method of claim 2, wherein the related information includes a set of programs, a module, a type, a field, an attribute, a mode, and/or an event.
4. The bi-directional linkage inter-transfer method of claim 1, wherein associating GIS graphic operations with CAD graphic operations comprises: and placing all the product classes in a class library, wherein each product class of all the product classes is respectively associated with a pair of GIS graphic operations and CAD graphic operations and corresponds to a static mode for acquiring operation types so as to enable the class factory design mode to call and acquire all supported operation combination strings.
5. The method of claim 1, wherein the GIS graphics operation or the CAD graphics operation comprises a graphics add operation, a graphics modify operation, a graphics delete operation, a graphics drag operation, a graphics rank operation, and/or a graphics annotation operation.
6. The method according to claim 1, wherein the class factory design pattern maps the operation combination into a product class through a hash table, wherein a key name in the hash table is an operation type name, and a key value in the hash table is a product class corresponding to the key name.
7. The method of two-way linkage inter-rotation of claim 1, wherein the first graphical operation comprises a transmission line path simulation operation and/or a transmission line tower placement simulation operation.
8. The method of claim 7, wherein when the first graphic operation includes a transmission line path simulation operation, reflecting data and operations in the first design scene into a second design scene, and implementing unified linkage operation and linkage operation result data, comprising:
drawing a power transmission line path diagram on a two-dimensional GIS platform in a GIS design scene and recording section coordinates of a place where a power transmission line path passes;
generating products according to the section coordinates, and sending the information of the section coordinates to a CAD platform in a CAD design scene through a reflection mechanism;
and drawing a section diagram of the transmission line path on the CAD platform according to the information of the section coordinates.
9. The method of claim 7, wherein when the first graphic operation includes a transmission line tower arrangement simulation operation, reflecting data and operations in the first design scene into a second design scene, and implementing unified linkage operation and linkage operation result data, comprising:
simulating transmission line tower arrangement on the basis of a two-dimensional plane section diagram in a CAD platform, simulating transmission line tower arrangement on the basis of a path diagram linked in a GIS platform, and ensuring synchronous linkage of tower operation, wherein the tower operation comprises tower deleting operation, tower moving operation and/or tower lifting operation.
10. The method of two-way coordinated inter-rotation of claim 1, wherein the CAD platform is a CAD software tool developed secondarily using teicha.
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| CN202311788207.5A CN117453708A (en) | 2023-12-25 | 2023-12-25 | Bidirectional linkage inter-conversion method for GIS (geographic information system) graph and CAD (computer aided design) graph |
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| CN202311788207.5A CN117453708A (en) | 2023-12-25 | 2023-12-25 | Bidirectional linkage inter-conversion method for GIS (geographic information system) graph and CAD (computer aided design) graph |
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| CN103718155A (en) * | 2011-08-11 | 2014-04-09 | 微软公司 | Runtime system |
| CN104391991A (en) * | 2014-12-15 | 2015-03-04 | 重庆市勘测院 | Method for converting AutoCAD data into GIS spatial data |
| CN105608714A (en) * | 2015-09-23 | 2016-05-25 | 湖北省基础地理信息中心 | Framing image generation method based on CAD and GIS cooperation and system thereof |
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