CN113505185A - Three-dimensional scene rendering and displaying method for urban information model - Google Patents
Three-dimensional scene rendering and displaying method for urban information model Download PDFInfo
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Abstract
The invention discloses a three-dimensional scene rendering and displaying method of a city information model, which comprises the steps of constructing map information and geographic data information of a city area by utilizing a GIS (geographic information system) data module; the invention solves the problems that the real-scene three-dimensional model of a city cannot be expressed and realized, the detail display in the city model cannot be accurately expressed, simultaneously, the data comprises basic map information, in-store product information and the like, the information of a merchant map can only be described on the basis of characters when commodities are selected, particularly, the information is not vivid and intuitive for a user, the geographic position information of an electronic map cannot be directly acquired, and the demand degree of the user cannot be better met.
Description
Technical Field
The invention relates to the technical field of urban real-scene three-dimensional models, in particular to a three-dimensional scene rendering and displaying method of an urban information model.
Background
Digital cities represent the development direction of urban informatization, are important means for promoting the informatization of the whole country, and since the 21 st century, digital cities are rapidly developed and become one of the strategic high-technology fields with the most development potential at present.
Patent with application number CN201710128949.3 discloses a three-dimensional rendering method and system for large scenes, which adopts a dual-queue technique to control asynchronous execution between rendering threads and other threads, so as to prevent other threads from blocking the rendering threads, thereby greatly improving the operating efficiency between the processes. Dynamically loading rendering data required by three-dimensional rendering of a current scene to be rendered into a memory; determining a preset rendering acceleration rule corresponding to the current scene to be rendered, and calling a rendering thread to perform three-dimensional rendering on a plurality of objects to be rendered in the current scene to be rendered according to the preset rendering acceleration rule. And aiming at different rendering scenes, classifying and rendering in batches a plurality of objects to be rendered in the current scene to be rendered by adopting a corresponding rendering acceleration technology, so that accelerated rendering is realized, energy consumption is reduced, and user experience is improved.
However, the visual two-dimensional and three-dimensional data analysis system has many problems, which affect the use of three-dimensional city models, generally rough, and cannot express the reality three-dimensional model of the city, and also cannot accurately express the detail display in the city model, and meanwhile, the data includes basic map information, in-store product information and the like, the information of the merchant map can only be described on the basis of characters when selecting commodities, especially the information is not vivid and intuitive for users, and the geographic position information of an electronic map cannot be directly acquired, so that the demand of the users cannot be better met, therefore, the method for rendering and displaying the three-dimensional scene of the city information model is provided, and the problem is solved
Disclosure of Invention
The invention aims to provide a three-dimensional scene rendering and displaying method of a city information model, which has the advantages of accurately expressing detail display in the city model and directly acquiring geographic position information of an electronic map, and solves the problems that the real-scene three-dimensional model of a city cannot be expressed and realized, the detail display in the city model cannot be accurately expressed, data of the data comprise basic map information, in-store product information and the like, information of a merchant map can only be described on the basis of characters when a commodity is selected, particularly, the information is not vivid and visual for a user, the geographic position information of the electronic map cannot be directly acquired, and the demand degree of the user cannot be better met.
In order to achieve the purpose, the invention provides the following technical scheme: a city information model three-dimensional scene rendering and displaying method comprises the following steps:
step 1: map information and geographic data information of an urban area are constructed by utilizing a GIS data module, and the map information in the GIS data module is two-dimensional plane information;
step 2: carrying out data acquisition on the building information in the urban area by using a data acquisition module;
and step 3: building information data acquired by combining the BIM three-dimensional module is utilized to carry out three-dimensional modularization on the buildings in the urban area;
and 4, step 4: the three-dimensional model output by the BIM three-dimensional module and the map information in the GIS data model are spliced and combined through a model integration module;
and 5: extracting the characteristics of the obtained preliminary city three-dimensional model by using a characteristic extraction module, and recording greening and municipal building information;
step 6: rendering the building information and the greening information by using a rendering display module;
and 7: determining a preset rendering acceleration rule corresponding to a current scene to be rendered, and calling a rendering thread to perform three-dimensional rendering on a plurality of objects to be rendered in the current scene to be rendered according to the preset rendering acceleration rule;
and 8: when a three-dimensional electronic map display request is sent to a server end through a browser end after rendering, the server end acquires three-dimensional electronic map information of the browser end;
and step 9: loading three-dimensional electronic map data from a three-dimensional electronic map database of a server side;
step 10: and drawing the three-dimensional electronic map according to the loaded three-dimensional electronic map data, and sending the three-dimensional electronic map to a browser end for displaying.
Preferably, in step 2, the data acquisition module includes unmanned aerial vehicle mapping module, satellite positioning mapping module and the road conditions mapping car that has the camera, and the data that the data acquisition module obtained includes the space size, the side image, the top image of building, and the space size is surveyed by unmanned aerial vehicle mapping module, and the side image is shot output by unmanned aerial vehicle mapping module and road conditions mapping car jointly, and the top image is shot output by satellite positioning mapping module.
Preferably, in step 4, the GIS is a geographic information system, and is a technical system for collecting, storing, managing, calculating, analyzing, displaying and describing geographic distribution data in the whole or part of the space of the earth surface (including the atmosphere).
Preferably, in step 5, the greening information is mainly image information obtained by the data acquisition module, the image information comprises a satellite positioning and mapping module and a road condition mapping vehicle with a camera, the satellite positioning and mapping module divides the greening conditions in the urban area into regions, and the greening is determined to be tree greening, lawn greening and shrub greening by utilizing the urban conditions shot by the road condition mapping vehicle, so that different vegetation models are placed in corresponding positions, and the municipal building information comprises an electric pole, a distribution cabinet, a road being maintained and a construction site.
Preferably, in step 7, when a plurality of objects to be rendered with the same texture data and model data exist in the current scene to be rendered, the preset rendering acceleration rule is determined as an example rendering rule; dividing a plurality of objects to be rendered with the same texture data and model data into the same rendering batch; and controlling the rendering thread to simultaneously perform three-dimensional rendering on a plurality of objects to be rendered in the same rendering batch in the current scene to be rendered.
Preferably, in step 8, the simulation scene electronic map image to be displayed is drawn in a graphic display form in the request of the browser terminal, and after the server terminal receives the simulation scene electronic map request, the coordinate point of the displayed three-dimensional electronic map determines the coordinate range of the simulation scene electronic map to be displayed.
Preferably, the relative position between the coordinates of the simulation scene electronic map to be displayed and the street coordinates in the three-dimensional electronic map is judged according to the coordinate range of the simulation scene electronic map to be displayed.
Preferably, in step 9, the electronic map image database of the simulation scene at the server end loads the electronic map image of the simulation scene to be displayed in the coordinate range.
Preferably, in step 10, the image display form refers to a display form of a three-dimensional electronic map corresponding to a real map, and the three-dimensional electronic map is a simulation scene electronic map; the three-dimensional electronic map is divided into three layers: three-dimensional simulation scene images, map coordinates and electronic map images; the electronic map image is a bottom map, the map coordinates are invisible maps, and the three-dimensional simulation scene image is a top map.
Compared with the prior art, the invention has the beneficial effects that: the invention solves the problems that the real-scene three-dimensional model of a city cannot be expressed and realized, the detail display in the city model cannot be accurately expressed, simultaneously, the data comprises basic map information, in-store product information and the like, the information of a merchant map can only be described on the basis of characters when commodities are selected, particularly, the information is not vivid and intuitive for a user, the geographic position information of an electronic map cannot be directly acquired, and the demand degree of the user cannot be better met.
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FIG. 1 is a schematic view of the patent structure flow of the present invention
Detailed Description
The present invention will now be described in more detail by way of examples, which are given by way of illustration only and are not intended to limit the scope of the present invention in any way.
The invention provides a technical scheme that: a city information model three-dimensional scene rendering and displaying method comprises the following steps:
step 1: map information and geographic data information of an urban area are constructed by utilizing a GIS data module, and the map information in the GIS data module is two-dimensional plane information;
step 2: carrying out data acquisition on the building information in the urban area by using a data acquisition module;
and step 3: building information data acquired by combining the BIM three-dimensional module is utilized to carry out three-dimensional modularization on the buildings in the urban area;
and 4, step 4: the three-dimensional model output by the BIM three-dimensional module and the map information in the GIS data model are spliced and combined through a model integration module;
and 5: extracting the characteristics of the obtained preliminary city three-dimensional model by using a characteristic extraction module, and recording greening and municipal building information;
step 6: rendering the building information and the greening information by using a rendering display module;
and 7: determining a preset rendering acceleration rule corresponding to a current scene to be rendered, and calling a rendering thread to perform three-dimensional rendering on a plurality of objects to be rendered in the current scene to be rendered according to the preset rendering acceleration rule;
and 8: when a three-dimensional electronic map display request is sent to a server end through a browser end after rendering, the server end acquires three-dimensional electronic map information of the browser end;
and step 9: loading three-dimensional electronic map data from a three-dimensional electronic map database of a server side;
step 10: and drawing the three-dimensional electronic map according to the loaded three-dimensional electronic map data, and sending the three-dimensional electronic map to a browser end for displaying.
The first embodiment is as follows:
map information and geographic data information of an urban area are constructed by utilizing a GIS data module, and the map information in the GIS data module is two-dimensional plane information; carrying out data acquisition on the building information in the urban area by using a data acquisition module; building information data acquired by combining the BIM three-dimensional module is utilized to carry out three-dimensional modularization on the buildings in the urban area; the three-dimensional model output by the BIM three-dimensional module and the map information in the GIS data model are spliced and combined through a model integration module; extracting the characteristics of the obtained preliminary city three-dimensional model by using a characteristic extraction module, and recording greening and municipal building information; rendering the building information and the greening information by using a rendering display module; determining a preset rendering acceleration rule corresponding to a current scene to be rendered, and calling a rendering thread to perform three-dimensional rendering on a plurality of objects to be rendered in the current scene to be rendered according to the preset rendering acceleration rule; when a three-dimensional electronic map display request is sent to a server end through a browser end after rendering, the server end acquires three-dimensional electronic map information of the browser end; loading three-dimensional electronic map data from a three-dimensional electronic map database of a server side; and drawing the three-dimensional electronic map according to the loaded three-dimensional electronic map data, and sending the three-dimensional electronic map to a browser end for displaying.
Example two:
in the first embodiment, the following steps are added:
in step 2, the data acquisition module includes unmanned aerial vehicle mapping module, satellite positioning mapping module and the road conditions mapping car that has the camera, and the data that the data acquisition module obtained includes the space size, side image, the top image of building, and the space size is surveyed by unmanned aerial vehicle mapping module, and the side image is shot output by unmanned aerial vehicle mapping module and road conditions mapping car jointly, and the top image is shot output by satellite positioning mapping module.
Map information and geographic data information of an urban area are constructed by utilizing a GIS data module, and the map information in the GIS data module is two-dimensional plane information; carrying out data acquisition on the building information in the urban area by using a data acquisition module; building information data acquired by combining the BIM three-dimensional module is utilized to carry out three-dimensional modularization on the buildings in the urban area; the three-dimensional model output by the BIM three-dimensional module and the map information in the GIS data model are spliced and combined through a model integration module; extracting the characteristics of the obtained preliminary city three-dimensional model by using a characteristic extraction module, and recording greening and municipal building information; rendering the building information and the greening information by using a rendering display module; determining a preset rendering acceleration rule corresponding to a current scene to be rendered, and calling a rendering thread to perform three-dimensional rendering on a plurality of objects to be rendered in the current scene to be rendered according to the preset rendering acceleration rule; when a three-dimensional electronic map display request is sent to a server end through a browser end after rendering, the server end acquires three-dimensional electronic map information of the browser end; loading three-dimensional electronic map data from a three-dimensional electronic map database of a server side; and drawing the three-dimensional electronic map according to the loaded three-dimensional electronic map data, and sending the three-dimensional electronic map to a browser end for displaying.
Example three:
in the second embodiment, the following steps are added:
in step 4, the GIS is a geographic information system, and is a technical system for collecting, storing, managing, operating, analyzing, displaying and describing geographic distribution data in the whole or part of the space of the earth surface (including the atmosphere).
Map information and geographic data information of an urban area are constructed by utilizing a GIS data module, and the map information in the GIS data module is two-dimensional plane information; carrying out data acquisition on the building information in the urban area by using a data acquisition module; building information data acquired by combining the BIM three-dimensional module is utilized to carry out three-dimensional modularization on the buildings in the urban area; the three-dimensional model output by the BIM three-dimensional module and the map information in the GIS data model are spliced and combined through a model integration module; extracting the characteristics of the obtained preliminary city three-dimensional model by using a characteristic extraction module, and recording greening and municipal building information; rendering the building information and the greening information by using a rendering display module; determining a preset rendering acceleration rule corresponding to a current scene to be rendered, and calling a rendering thread to perform three-dimensional rendering on a plurality of objects to be rendered in the current scene to be rendered according to the preset rendering acceleration rule; when a three-dimensional electronic map display request is sent to a server end through a browser end after rendering, the server end acquires three-dimensional electronic map information of the browser end; loading three-dimensional electronic map data from a three-dimensional electronic map database of a server side; and drawing the three-dimensional electronic map according to the loaded three-dimensional electronic map data, and sending the three-dimensional electronic map to a browser end for displaying.
Example four:
in the third embodiment, the following steps are added:
in step 5, the greening information is mainly image information obtained by the data acquisition module, the image information comprises a satellite positioning and mapping module and a road condition mapping vehicle with a camera, the satellite positioning and mapping module divides the greening conditions in the urban area into regions, and the greening is determined to be tree greening, lawn greening and shrub greening by utilizing the urban conditions shot by the road condition mapping vehicle, so that different vegetation models are placed in corresponding positions, and the municipal building information comprises an electric pole, a distribution cabinet, a road being maintained and a construction site.
Map information and geographic data information of an urban area are constructed by utilizing a GIS data module, and the map information in the GIS data module is two-dimensional plane information; carrying out data acquisition on the building information in the urban area by using a data acquisition module; building information data acquired by combining the BIM three-dimensional module is utilized to carry out three-dimensional modularization on the buildings in the urban area; the three-dimensional model output by the BIM three-dimensional module and the map information in the GIS data model are spliced and combined through a model integration module; extracting the characteristics of the obtained preliminary city three-dimensional model by using a characteristic extraction module, and recording greening and municipal building information; rendering the building information and the greening information by using a rendering display module; determining a preset rendering acceleration rule corresponding to a current scene to be rendered, and calling a rendering thread to perform three-dimensional rendering on a plurality of objects to be rendered in the current scene to be rendered according to the preset rendering acceleration rule; when a three-dimensional electronic map display request is sent to a server end through a browser end after rendering, the server end acquires three-dimensional electronic map information of the browser end; loading three-dimensional electronic map data from a three-dimensional electronic map database of a server side; and drawing the three-dimensional electronic map according to the loaded three-dimensional electronic map data, and sending the three-dimensional electronic map to a browser end for displaying.
Example five:
in the fourth example, the following steps were added:
in step 7, when a plurality of objects to be rendered with the same texture data and model data exist in the current scene to be rendered, determining a preset rendering acceleration rule as an example rendering rule; dividing a plurality of objects to be rendered with the same texture data and model data into the same rendering batch; and controlling the rendering thread to simultaneously perform three-dimensional rendering on a plurality of objects to be rendered in the same rendering batch in the current scene to be rendered.
Map information and geographic data information of an urban area are constructed by utilizing a GIS data module, and the map information in the GIS data module is two-dimensional plane information; carrying out data acquisition on the building information in the urban area by using a data acquisition module; building information data acquired by combining the BIM three-dimensional module is utilized to carry out three-dimensional modularization on the buildings in the urban area; the three-dimensional model output by the BIM three-dimensional module and the map information in the GIS data model are spliced and combined through a model integration module; extracting the characteristics of the obtained preliminary city three-dimensional model by using a characteristic extraction module, and recording greening and municipal building information; rendering the building information and the greening information by using a rendering display module; determining a preset rendering acceleration rule corresponding to a current scene to be rendered, and calling a rendering thread to perform three-dimensional rendering on a plurality of objects to be rendered in the current scene to be rendered according to the preset rendering acceleration rule; when a three-dimensional electronic map display request is sent to a server end through a browser end after rendering, the server end acquires three-dimensional electronic map information of the browser end; loading three-dimensional electronic map data from a three-dimensional electronic map database of a server side; and drawing the three-dimensional electronic map according to the loaded three-dimensional electronic map data, and sending the three-dimensional electronic map to a browser end for displaying.
Example six:
in the fifth example, the following steps were added:
in step 8, the simulation scene electronic map image to be displayed is drawn in a graph display form in the request of the browser end, after the server end receives the simulation scene electronic map request, the coordinate point of the displayed three-dimensional electronic map determines the coordinate range of the simulation scene electronic map to be displayed, and the relative position of the simulation scene electronic map coordinate to be displayed and the street coordinate in the three-dimensional electronic map is judged according to the coordinate range of the simulation scene electronic map to be displayed.
Map information and geographic data information of an urban area are constructed by utilizing a GIS data module, and the map information in the GIS data module is two-dimensional plane information; carrying out data acquisition on the building information in the urban area by using a data acquisition module; building information data acquired by combining the BIM three-dimensional module is utilized to carry out three-dimensional modularization on the buildings in the urban area; the three-dimensional model output by the BIM three-dimensional module and the map information in the GIS data model are spliced and combined through a model integration module; extracting the characteristics of the obtained preliminary city three-dimensional model by using a characteristic extraction module, and recording greening and municipal building information; rendering the building information and the greening information by using a rendering display module; determining a preset rendering acceleration rule corresponding to a current scene to be rendered, and calling a rendering thread to perform three-dimensional rendering on a plurality of objects to be rendered in the current scene to be rendered according to the preset rendering acceleration rule; when a three-dimensional electronic map display request is sent to a server end through a browser end after rendering, the server end acquires three-dimensional electronic map information of the browser end; loading three-dimensional electronic map data from a three-dimensional electronic map database of a server side; and drawing the three-dimensional electronic map according to the loaded three-dimensional electronic map data, and sending the three-dimensional electronic map to a browser end for displaying.
Example seven:
in example six, the following steps were added:
in step 9, the electronic map image database of the simulation scene at the server end loads the electronic map image of the simulation scene to be displayed within the coordinate range.
Map information and geographic data information of an urban area are constructed by utilizing a GIS data module, and the map information in the GIS data module is two-dimensional plane information; carrying out data acquisition on the building information in the urban area by using a data acquisition module; building information data acquired by combining the BIM three-dimensional module is utilized to carry out three-dimensional modularization on the buildings in the urban area; the three-dimensional model output by the BIM three-dimensional module and the map information in the GIS data model are spliced and combined through a model integration module; extracting the characteristics of the obtained preliminary city three-dimensional model by using a characteristic extraction module, and recording greening and municipal building information; rendering the building information and the greening information by using a rendering display module; determining a preset rendering acceleration rule corresponding to a current scene to be rendered, and calling a rendering thread to perform three-dimensional rendering on a plurality of objects to be rendered in the current scene to be rendered according to the preset rendering acceleration rule; when a three-dimensional electronic map display request is sent to a server end through a browser end after rendering, the server end acquires three-dimensional electronic map information of the browser end; loading three-dimensional electronic map data from a three-dimensional electronic map database of a server side; and drawing the three-dimensional electronic map according to the loaded three-dimensional electronic map data, and sending the three-dimensional electronic map to a browser end for displaying.
Example eight:
in example seven, the following steps were added:
in step 10, the image display form is a display form of a three-dimensional electronic map corresponding to a real map, and the three-dimensional electronic map is a simulation scene electronic map; the three-dimensional electronic map is divided into three layers: three-dimensional simulation scene images, map coordinates and electronic map images; the electronic map image is a bottom map, the map coordinates are invisible maps, and the three-dimensional simulation scene image is a top map.
Map information and geographic data information of an urban area are constructed by utilizing a GIS data module, and the map information in the GIS data module is two-dimensional plane information; carrying out data acquisition on the building information in the urban area by using a data acquisition module; building information data acquired by combining the BIM three-dimensional module is utilized to carry out three-dimensional modularization on the buildings in the urban area; the three-dimensional model output by the BIM three-dimensional module and the map information in the GIS data model are spliced and combined through a model integration module; extracting the characteristics of the obtained preliminary city three-dimensional model by using a characteristic extraction module, and recording greening and municipal building information; rendering the building information and the greening information by using a rendering display module; determining a preset rendering acceleration rule corresponding to a current scene to be rendered, and calling a rendering thread to perform three-dimensional rendering on a plurality of objects to be rendered in the current scene to be rendered according to the preset rendering acceleration rule; when a three-dimensional electronic map display request is sent to a server end through a browser end after rendering, the server end acquires three-dimensional electronic map information of the browser end; loading three-dimensional electronic map data from a three-dimensional electronic map database of a server side; and drawing the three-dimensional electronic map according to the loaded three-dimensional electronic map data, and sending the three-dimensional electronic map to a browser end for displaying.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A three-dimensional scene rendering and displaying method of a city information model is characterized in that: the method comprises the following steps:
step 1: map information and geographic data information of an urban area are constructed by utilizing a GIS data module, and the map information in the GIS data module is two-dimensional plane information;
step 2: carrying out data acquisition on the building information in the urban area by using a data acquisition module;
and step 3: building information data acquired by combining the BIM three-dimensional module is utilized to carry out three-dimensional modularization on the buildings in the urban area;
and 4, step 4: the three-dimensional model output by the BIM three-dimensional module and the map information in the GIS data model are spliced and combined through a model integration module;
and 5: extracting the characteristics of the obtained preliminary city three-dimensional model by using a characteristic extraction module, and recording greening and municipal building information;
step 6: rendering the building information and the greening information by using a rendering display module;
and 7: determining a preset rendering acceleration rule corresponding to a current scene to be rendered, and calling a rendering thread to perform three-dimensional rendering on a plurality of objects to be rendered in the current scene to be rendered according to the preset rendering acceleration rule;
and 8: when a three-dimensional electronic map display request is sent to a server end through a browser end after rendering, the server end acquires three-dimensional electronic map information of the browser end;
and step 9: loading three-dimensional electronic map data from a three-dimensional electronic map database of a server side;
step 10: and drawing the three-dimensional electronic map according to the loaded three-dimensional electronic map data, and sending the three-dimensional electronic map to a browser end for displaying.
2. The city information model three-dimensional scene rendering and displaying method of claim 1, wherein: in step 2, the data acquisition module includes unmanned aerial vehicle mapping module, satellite positioning mapping module and the road conditions mapping car that has the camera, and the data that the data acquisition module obtained includes the space size, the side image, the top image of building, and the space size is surveyed by unmanned aerial vehicle mapping module, and the side image is shot output by unmanned aerial vehicle mapping module and road conditions mapping car jointly, and the top image is shot output by satellite positioning mapping module.
3. The city information model three-dimensional scene rendering and displaying method of claim 1, wherein: in step 4, the GIS is a geographic information system, and is a technical system for collecting, storing, managing, operating, analyzing, displaying and describing geographic distribution data in the whole or part of the space of the earth surface layer (including the atmosphere).
4. The city information model three-dimensional scene rendering and displaying method of claim 1, wherein: in step 5, the greening information is mainly image information obtained by the data acquisition module, the image information comprises a satellite positioning and mapping module and a road condition mapping vehicle with a camera, the satellite positioning and mapping module divides the greening conditions in the urban area into regions, and the greening is determined to be tree greening, lawn greening and shrub greening by utilizing the urban conditions shot by the road condition mapping vehicle, so that different vegetation models are placed in corresponding positions, and the municipal building information comprises an electric pole, a distribution cabinet, a road being maintained and a construction site.
5. The city information model three-dimensional scene rendering and displaying method of claim 1, wherein: in the step 7, when a plurality of objects to be rendered with the same texture data and model data exist in the current scene to be rendered, determining a preset rendering acceleration rule as an example rendering rule; dividing a plurality of objects to be rendered with the same texture data and model data into the same rendering batch; and controlling the rendering thread to simultaneously perform three-dimensional rendering on a plurality of objects to be rendered in the same rendering batch in the current scene to be rendered.
6. The city information model three-dimensional scene rendering and displaying method of claim 1, wherein: in step 8, the simulation scene electronic map image to be displayed is drawn in a graphic display form in the request of the browser end, and after the server end receives the simulation scene electronic map request, the coordinate point of the displayed three-dimensional electronic map determines the coordinate range of the simulation scene electronic map to be displayed.
7. The city information model three-dimensional scene rendering and displaying method of claim 6, wherein: and judging the relative position of the simulation scene electronic map coordinate to be displayed and the street coordinate in the three-dimensional electronic map according to the coordinate range of the simulation scene electronic map to be displayed.
8. The city information model three-dimensional scene rendering and displaying method of claim 1, wherein: in step 9, the simulation scene electronic map image to be displayed in the coordinate range is loaded in the simulation scene electronic map image database of the server side.
9. The city information model three-dimensional scene rendering and displaying method of claim 1, wherein: in the step 10, the image display form refers to a display form of a three-dimensional electronic map corresponding to the reality map, and the three-dimensional electronic map is a simulation scene electronic map; the three-dimensional electronic map is divided into three layers: three-dimensional simulation scene images, map coordinates and electronic map images; the electronic map image is a bottom map, the map coordinates are invisible maps, and the three-dimensional simulation scene image is a top map.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114511281A (en) * | 2022-01-11 | 2022-05-17 | 中国城市规划设计研究院 | Design scheme auxiliary examination method and system based on CIM |
| CN114820965A (en) * | 2022-04-25 | 2022-07-29 | 南京泛在地理信息产业研究院有限公司 | Real-scene three-dimensional modeling method for holographic map construction |
| CN114820965B (en) * | 2022-04-25 | 2024-05-03 | 南京泛在地理信息产业研究院有限公司 | Live-action three-dimensional modeling method for holographic map construction |
-
2021
- 2021-06-11 CN CN202110652777.6A patent/CN113505185A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114511281A (en) * | 2022-01-11 | 2022-05-17 | 中国城市规划设计研究院 | Design scheme auxiliary examination method and system based on CIM |
| CN114820965A (en) * | 2022-04-25 | 2022-07-29 | 南京泛在地理信息产业研究院有限公司 | Real-scene three-dimensional modeling method for holographic map construction |
| CN114820965B (en) * | 2022-04-25 | 2024-05-03 | 南京泛在地理信息产业研究院有限公司 | Live-action three-dimensional modeling method for holographic map construction |
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