CN111324682A - Method and device for loading CAD (computer-aided design) data without geographic coordinate information based on GMap (Gaussian mixture map) - Google Patents
Method and device for loading CAD (computer-aided design) data without geographic coordinate information based on GMap (Gaussian mixture map) Download PDFInfo
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Abstract
The application relates to a method and a device for loading CAD data without geographic coordinate information based on GMap, computer equipment and a medium, wherein the method comprises the following steps: acquiring CAD data without geographic information; selecting an arbitrary coordinate point A in the coordinate range of the world map; selecting any point B on the CAD data; translating the CAD data to translate the point B to a coordinate point A; setting a coordinate A point of the CAD data as a reference point for displaying coordinate information of the CAD data; obtaining new CAD data with coordinate information; map data is loaded using GMap. The invention can load any CAD data without geographic coordinate information by the coded map related software product without modifying codes, and has simple realization and high reliability.
Description
Technical Field
The application relates to the technical field of map data processing, in particular to a method and a device for loading CAD data without geographic coordinate information based on GMap, computer equipment and a readable storage medium.
Background
Net is a next map control, which can load maps of various companies based on Http protocol, such as Google, Bing, ArcGIS, the main principle is to obtain corresponding sliced maps (Tiled maps) by parsing URLs of map services of various companies and inputting corresponding parameters.
When the GMap loads map data, an implementation of loading a geographical map is used, which requires that the map data must contain geographical coordinate information (such as a coordinate system, a projection, etc.). But some projects need to present some CAD data privatized, such as factory floor plans, campus floor plans, etc. However, map data loaded by the GMap in the prior art are some non-geographic map data, and the data do not contain or cannot be added with some real geographic position identifications manually, i.e. the GMap-based loading of CAD data without geographic coordinate information cannot be realized in the prior art, so that the map data is inconvenient for users to use.
Therefore, the prior art is in need of improvement.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a method and a device for loading CAD data without geographic coordinate information based on GMap, computer equipment and a readable storage medium.
The technical scheme of the invention is as follows:
a method for loading CAD data without geographic coordinate information based on GMap, wherein the method comprises the following steps:
acquiring CAD data without geographic information;
selecting an arbitrary coordinate point A in the coordinate range of the world map;
selecting any point B on the CAD data;
translating the CAD data to translate the point B to a coordinate point A; setting a coordinate A point of the CAD data as a reference point for displaying coordinate information of the CAD data; obtaining new CAD data with coordinate information;
map data is loaded using GMap.
The method for loading CAD data without geographic coordinate information based on GMap comprises the following steps of:
and setting a real geographic coordinate point as a reference point of the CAD data, and displaying the CAD data in the world map range.
The method for loading CAD data without geographic coordinate information based on GMap comprises the following steps of:
and acquiring CAD data without geographic coordinate information.
The method for loading CAD data without geographic coordinate information based on GMap, wherein the step of selecting any coordinate point A in the coordinate range of the world map comprises the following steps:
and selecting an arbitrary coordinate point A in the coordinate range of the world map.
The method for loading the CAD data without the geographic coordinate information based on the GMap comprises the steps of translating the CAD data to enable a point B to translate to a point A of a coordinate; setting a coordinate A point of the CAD data as a reference point for displaying coordinate information of the CAD data; the step of obtaining new CAD data with coordinate information comprises:
the method comprises the steps that the CAD data without geographic coordinates are translated and registered according to a coordinate point A, the set point A is used as a reference point of the map data, and the original map data without geographic coordinate information is used for displaying coordinate information by the CAD data by using the coordinate point A as the coordinate information of the reference point;
new CAD data with coordinate information is obtained.
The method for loading CAD data without geographic coordinate information based on GMap comprises the following steps of:
loading the CAD map data in the existing map software product by using GMap;
and setting the point A as the center point of the map.
A GMap-based loading geographic coordinate information-free CAD data device, wherein the device comprises:
the acquisition module is used for acquiring CAD data without geographic information;
the first seat selection module is used for selecting any coordinate point A in the coordinate range of the world map;
the second seat selection module is used for selecting any point B on the CAD data;
the translation overlapping module is used for translating the CAD data to enable the point B to translate to the point A of the coordinate; setting a coordinate A point of the CAD data as a reference point for displaying coordinate information of the CAD data; obtaining new CAD data with coordinate information;
and the loading module is used for loading the map data by using the GMap.
The device for loading CAD data without geographic coordinate information based on GMap further comprises:
and the setting module is used for setting a real geographic coordinate point as a reference point of the CAD data, so that the CAD data is displayed in the world map range.
A computer device comprising a memory storing a computer program and a processor, wherein the processor when executing the computer program implements any of the steps of the GMap-based loading CAD data without geographic coordinate information method.
A computer readable storage medium having a computer program stored thereon, wherein the computer program when executed by a processor implements any of the steps of the GMap-based loading geographic coordinate information-free CAD data method.
Compared with the prior art, the embodiment of the invention has the following advantages:
the method and the device for loading the CAD data without the geographic coordinate information based on the GMap, the computer equipment and the readable storage medium are provided. Any CAD data without geographic coordinate information can be loaded by the coded map related software product without modifying codes. The principle is as follows: and setting a real geographic coordinate point as a reference point of the CAD data, namely, displaying the CAD data in the world map range. In the coordinate range of the world map, a coordinate point a is selected. And translating and registering the CAD data without the geographic coordinates according to the coordinate point A, namely setting the point A as a reference point of the map data, wherein the original map data without the geographic coordinate information has the coordinate information with the point A as the reference point. And then the map data is loaded in the existing map software product. The invention can load any CAD data without geographic coordinate information by the coded map related software product without modifying codes, and has simple realization and high reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for loading CAD data without geographic coordinate information based on GMap in embodiment 1 of the present invention.
Fig. 2 is a schematic flowchart of a method for loading CAD data without geographic coordinate information based on GMap in embodiment 2 of the present invention.
Fig. 3 is a schematic structural diagram of a CAD data device without geographic coordinate information loaded based on GMap in an embodiment of the present invention.
Fig. 4 is an internal structural diagram of a computer device in an embodiment of the present invention.
Fig. 5 is an exemplary structural diagram of translation and registration performed by a method for loading CAD data without geographic coordinate information based on GMap in embodiment 1 of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The inventor has found that, in the prior art, when the GMap loads map data, an implementation manner of loading a geographic map is used, which requires that the map data must include geographic coordinate information (such as a coordinate system, a projection, etc.). But some projects need to present some CAD data privatized, such as factory floor plans, campus floor plans, etc. However, map data loaded by the GMap in the prior art are non-geographic map data, and the data do not contain or cannot be added with identifiers of real geographic positions manually, namely, CAD data without geographic coordinate information based on GMap loading cannot be loaded in the prior art, so that the technical problem of inconvenience for users to use is solved.
In order to solve the above problem, in the embodiment of the present invention, a real geographic coordinate point is set as a reference point of the CAD data, that is, the CAD data is displayed in the world map. In the coordinate range of the world map, a coordinate point a is selected. And translating and registering the CAD data without the geographic coordinates according to the coordinate point A, namely setting the point A as a reference point of the map data, wherein the original map data without the geographic coordinate information has the coordinate information with the point A as the reference point. And then the map data is loaded in the existing map software product. The invention can load any CAD data without geographic coordinate information by the coded map related software product without modifying codes, and has simple realization and high reliability.
Various non-limiting embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 shows a method for loading CAD data without geographic coordinate information based on GMap according to an embodiment of the present invention, where the method includes the following steps:
step S1, obtaining CAD data without geographic information;
in the embodiment of the invention, CAD data without geographic information needs to be acquired;
in the embodiment of the present invention, before the step of obtaining the CAD data without geographic information, the method includes:
and setting a real geographic coordinate point as a reference point of the CAD data, and displaying the CAD data in the world map range. CAD data without geographic coordinate information is then obtained.
S2, selecting an arbitrary coordinate point A in the coordinate range of the world map;
in an embodiment of the present invention, the step of selecting an arbitrary coordinate point a in a coordinate range of a world map includes:
and selecting an arbitrary coordinate point A in the coordinate range of the world map. The CAD data is set with the coordinate point A as a reference point.
Step S3, selecting any point B on the CAD data;
then, any point B on the CAD data is selected.
Step S4, translating the CAD data to translate the point B to the point A of the coordinate; setting a coordinate A point of the CAD data as a reference point for displaying coordinate information of the CAD data; obtaining new CAD data with coordinate information;
in the invention, the CAD data is translated to translate the point B to the point A of the coordinate; setting a coordinate A point of the CAD data as a reference point for displaying coordinate information of the CAD data; new CAD data with coordinate information is obtained.
For example, the CAD data without geographic coordinates are translated and registered according to a coordinate point A, and the set point A is used as a reference point of the map data, so that the original map data without geographic coordinate information uses the coordinate information of the point A as the reference point, and is used for displaying the coordinate information of the CAD data; new CAD data with coordinate information is then obtained.
Wherein, the translation and registration are performed as shown in fig. 5:
for the existing CAD data with the length of the east-west running direction being 10km, the CAD coordinates of the point B are (10000), and the CAD coordinates of the point C are (20000,10000). The coordinates of the point A selected on the geographic map are (0,0), the geographic coordinates of the point B in the CAD data are set as the coordinates of the point A, namely the geographic coordinates of the point B are (0,0), 360/40075016.68557849 degrees which correspond to one meter can be calculated according to the arbitrary circumference 40075016.68557849 meters of the earth, 0.000008983152841195214 degrees can be calculated, and the geographic coordinates of the point C can be calculated as (0.08983152841195214, 0)
Principle of registration translation:
respectively solving difference values of the X coordinate and the Y coordinate of the point B according to the coordinate of the point A, and then offsetting all groups of coordinate points of the original CAD data by using the difference values
According to the translation invariance of the vector, for the vector in the same coordinate system, the magnitude of the vector is the straight-line distance between the starting point and the end point, and when the vector is moved (regardless of the movement), the length of the vector is unchanged (although the coordinates of the starting point and the end point are changed), so that the magnitude of the vector never changes along with the movement.
Step S5, load map data using GMap.
In the invention, the CAD map data is loaded in the existing map software product by using GMap; and setting the point A as the center point of the map.
In another embodiment, as shown in fig. 2, this embodiment 2 provides a method for loading CAD data without geographic coordinate information based on GMap. As shown in fig. 2, the method for loading CAD data without geographic coordinate information based on GMap in embodiment 2 specifically includes the following steps:
and step 17, ending.
The invention provides a method for loading CAD data without geographic coordinate information based on GMap, which can load any CAD data without geographic coordinate information without modifying codes of coded map related software products, and has the advantages of simple implementation and high reliability.
In one embodiment, the present invention provides a GMap-based loading CAD data device without geographic coordinate information, as shown in fig. 3, the device comprising:
an obtaining module 41, configured to obtain CAD data without geographic information;
the first seat selection module 42 is used for selecting an arbitrary coordinate point A in the coordinate range of the world map;
a second seat selection module 43, configured to select any point B on the CAD data;
the translation and superposition module 44 is used for translating the CAD data to translate the point B to the point A of the coordinate; setting a coordinate A point of the CAD data as a reference point for displaying coordinate information of the CAD data; obtaining new CAD data with coordinate information;
and a loading module 45, configured to load the map data using the GMap.
The device for loading CAD data without geographic coordinate information based on GMap further comprises:
the setting module is used for setting a real geographic coordinate point as a reference point of the CAD data, so that the CAD data is displayed in the world map range; as described above.
In one embodiment, the present invention provides a computer device, which may be a terminal, having an internal structure as shown in fig. 4. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a method of generating a natural language model. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the illustration in fig. 4 is merely a block diagram of a portion of the structure associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
The embodiment of the invention provides computer equipment, which comprises a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to realize the following steps:
acquiring CAD data without geographic information;
selecting an arbitrary coordinate point A in the coordinate range of the world map;
selecting any point B on the CAD data;
translating the CAD data to translate the point B to a coordinate point A; setting a coordinate A point of the CAD data as a reference point for displaying coordinate information of the CAD data; obtaining new CAD data with coordinate information;
map data is loaded using GMap.
Wherein the step of obtaining the CAD data without geographic information comprises:
and setting a real geographic coordinate point as a reference point of the CAD data, and displaying the CAD data in the world map range.
The method for loading CAD data without geographic coordinate information based on GMap comprises the following steps of:
and acquiring CAD data without geographic coordinate information.
Wherein the step of selecting an arbitrary coordinate point a within the coordinate range of the world map includes:
and selecting an arbitrary coordinate point A in the coordinate range of the world map.
The method for loading the CAD data without the geographic coordinate information based on the GMap comprises the steps of translating the CAD data to enable a point B to translate to a point A of a coordinate; setting a coordinate A point of the CAD data as a reference point for displaying coordinate information of the CAD data; the step of obtaining new CAD data with coordinate information comprises:
the method comprises the steps that the CAD data without geographic coordinates are translated and registered according to a coordinate point A, the set point A is used as a reference point of the map data, and the original map data without geographic coordinate information is used for displaying coordinate information by the CAD data by using the coordinate point A as the coordinate information of the reference point;
new CAD data with coordinate information is obtained.
Wherein the step of loading map data using the GMap comprises:
loading the CAD map data in the existing map software product by using GMap;
setting the point A as a map center point; as described above.
In summary, compared with the prior art, the embodiment of the invention has the following advantages:
the method and the device for loading the CAD data without the geographic coordinate information based on the GMap, the computer equipment and the readable storage medium are provided. Any CAD data without geographic coordinate information can be loaded by the coded map related software product without modifying codes. The principle is as follows: and setting a real geographic coordinate point as a reference point of the CAD data, namely, displaying the CAD data in the world map range. In the coordinate range of the world map, a coordinate point a is selected. And translating and registering the CAD data without the geographic coordinates according to the coordinate point A, namely setting the point A as a reference point of the map data, wherein the original map data without the geographic coordinate information has the coordinate information with the point A as the reference point. And then the map data is loaded in the existing map software product. The invention can load any CAD data without geographic coordinate information by the coded map related software product without modifying codes, and has simple realization and high reliability.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for loading CAD data without geographic coordinate information based on GMap is characterized by comprising the following steps:
acquiring CAD data without geographic information;
selecting an arbitrary coordinate point A in the coordinate range of the world map;
selecting any point B on the CAD data;
translating the CAD data to translate the point B to a coordinate point A; setting a coordinate A point of the CAD data as a reference point for displaying coordinate information of the CAD data; obtaining new CAD data with coordinate information;
map data is loaded using GMap.
2. The method for loading geographic coordinate information-free CAD data based on GMap of claim 1, wherein the step of obtaining the geographic information-free CAD data is preceded by:
and setting a real geographic coordinate point as a reference point of the CAD data, and displaying the CAD data in the world map range.
3. The method for loading geographic coordinate information-free CAD data based on GMap of claim 1, wherein the step of obtaining the geographic information-free CAD data comprises:
and acquiring CAD data without geographic coordinate information.
4. The GMap-based loading geographic coordinate information-free CAD data method according to claim 1, wherein said step of selecting an arbitrary coordinate point A in the coordinate range of the world map comprises:
and selecting an arbitrary coordinate point A in the coordinate range of the world map.
5. The GMap-based CAD data method for loading geographic coordinate information free (I) according to claim 1, wherein said translating CAD data causes point B to translate to point A; setting a coordinate A point of the CAD data as a reference point for displaying coordinate information of the CAD data; the step of obtaining new CAD data with coordinate information comprises:
the method comprises the steps that the CAD data without geographic coordinates are translated and registered according to a coordinate point A, the set point A is used as a reference point of the map data, and the original map data without geographic coordinate information is used for displaying coordinate information by the CAD data by using the coordinate point A as the coordinate information of the reference point;
new CAD data with coordinate information is obtained.
6. The method for loading CAD data without geographic coordinate information based on GMap according to claim 1, wherein the step of loading map data using GMap comprises:
loading the CAD map data in the existing map software product by using GMap;
and setting the point A as the center point of the map.
7. A GMap-based loading CAD data device without geographic coordinate information, the device comprising:
the acquisition module is used for acquiring CAD data without geographic information;
the first seat selection module is used for selecting any coordinate point A in the coordinate range of the world map;
the second seat selection module is used for selecting any point B on the CAD data;
the translation overlapping module is used for translating the CAD data to enable the point B to translate to the point A of the coordinate; setting a coordinate A point of the CAD data as a reference point for displaying coordinate information of the CAD data; obtaining new CAD data with coordinate information;
and the loading module is used for loading the map data by using the GMap.
8. The GMap-based loading CAD data device without geographic coordinate information according to claim 7, further comprising:
and the setting module is used for setting a real geographic coordinate point as a reference point of the CAD data, so that the CAD data is displayed in the world map range.
9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor when executing the computer program performs the steps of the method for GMap-based loading of CAD data without geographical coordinate information of any of claims 1 to 6.
10. A computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the steps of the GMap-based loading geographic coordinate information-free CAD data method of any of claims 1 to 6.
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Cited By (1)
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| CN111309841A (en) * | 2020-02-20 | 2020-06-19 | 深圳震有科技股份有限公司 | Method and device for translational correction processing of CAD (computer-aided design) data in geographic coordinate system |
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2020
- 2020-02-06 CN CN202010081926.3A patent/CN111324682A/en active Pending
Non-Patent Citations (1)
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| 赵旭珍;李纯乾;: "CAD文件转入GIS中投影坐标设置方法", 水土保持应用技术 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111309841A (en) * | 2020-02-20 | 2020-06-19 | 深圳震有科技股份有限公司 | Method and device for translational correction processing of CAD (computer-aided design) data in geographic coordinate system |
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