CN113178007A - Urban operation simulation and overall planning system - Google Patents
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Abstract
The invention relates to the technical field of urban planning, in particular to an urban operation simulation and overall planning system, which comprises: the development planning module is used for planning and designing a development scheme of urban construction; the operation simulation module is used for deducing the development scheme based on the simulation model to obtain the operation effect of the development scheme in urban operation; the modeling rendering module is used for constructing a three-dimensional city virtual scene according to a development scheme, and performing regional seamless rendering according to a preset angle to generate a multi-angle three-dimensional map; cutting the three-dimensional map to obtain a cut map; performing data coding and organization management on the cut map according to angles, so that map transformation is performed on the three-dimensional map at a plurality of angles to obtain a rendering effect; and the scheme evaluation module is used for evaluating the development scheme according to the operation effect and the rendering result. The invention can transform the three-dimensional map at a plurality of angles, and solves the technical problem that the city can not be observed from a plurality of directions in the prior art.
Description
Technical Field
The invention relates to the technical field of urban planning, in particular to an urban operation simulation and overall planning system.
Background
In recent years, three-dimensional simulation cities become an important means for showing self-style of each big city, city information is observed through a plurality of visual angles, a map with three-dimensional and vivid colors is shown in the public, and the map showing mode of the three-dimensional simulation cities gradually replaces a fixed pattern which is simple in mode and insufficient in three-dimensional and visual information description in a two-dimensional map. The city simulation mainly adopts a database technology, a geographic information system technology and a virtual reality technology to carry out three-dimensional digital measurement on the existing terrain and ground features of the city, obtains three-dimensional structure information and texture information, expresses the three-dimensional structure information and the texture information through a three-dimensional visualization technology to form a virtual landscape model, and provides the virtual landscape model for a city planning and design department to carry out computer-aided city planning and design.
The city simulation only carries out three-dimensional modeling on the city, and the decision support provided for city planning and design departments is limited, so that the accurate management cannot be effectively supported. In contrast, chinese patent CN107977766A discloses a system for city operation simulation and overall planning, which includes: the urban operation simulation subsystem is used for deducing the effect of the scheme in urban operation based on the simulation model; the urban development planning subsystem is used for planning and designing an urban construction development scheme; the city major event assistant decision subsystem is used for city event decision and plan evaluation; and the urban sustainable development evaluation subsystem is used for evaluating the indexes of urban sustainable development.
In the technical scheme, the effect of the scheme in city operation is deduced based on the simulation model, the planning and designing city construction scheme is selected, and simultaneously, the advanced simulation analysis is carried out on important events which may occur in the future, so that a city manager can be helped to realize the fine management of the city. However, three-dimensional simulations show data from a single angle and cannot view a city from multiple perspectives.
Disclosure of Invention
The invention provides a city operation simulation and overall planning system, which solves the technical problem that the city cannot be observed from multiple directions in the prior art.
The basic scheme provided by the invention is as follows: a city operation simulation and overall planning system comprises:
the development planning module is used for planning and designing a development scheme of urban construction;
the operation simulation module is used for deducing the development scheme based on the simulation model to obtain the operation effect of the development scheme in urban operation;
the modeling rendering module is used for constructing a three-dimensional city virtual scene according to a development scheme, and performing regional seamless rendering on the three-dimensional city virtual scene according to a preset angle to generate a multi-angle three-dimensional map; cutting the three-dimensional map to obtain a cut map; performing data coding and organization management on the cut map according to angles, so that map transformation is performed on the three-dimensional map at a plurality of angles to obtain a rendering effect;
and the scheme evaluation module is used for evaluating the development scheme according to the operation effect and the rendering result.
The working principle and the advantages of the invention are as follows: constructing a three-dimensional city virtual scene according to a development scheme, performing regional seamless rendering according to a preset angle to generate a multi-angle three-dimensional map, cutting the three-dimensional map to obtain a cut map, and performing data coding and organization management on the cut map according to angles to enable the three-dimensional map to perform map transformation at multiple angles; by the mode, multi-angle browsing of the three-dimensional map can be realized, meanwhile, the three-dimensional map can be quickly loaded and displayed, and the browsing speed is improved; meanwhile, the effect of the development scheme in city operation is deduced based on the simulation model, and the development scheme is comprehensively evaluated according to the operation effect and the rendering result, so that a city manager can conveniently realize refined management on the city.
The invention carries out data coding and organization management on the cut map according to the angles, so that the three-dimensional map carries out map transformation at a plurality of angles, and the technical problem that the city can not be observed from a plurality of directions in the prior art is solved.
Further, the modeling rendering module comprises a transformation unit for acquiring a two-dimensional map, collecting control points on the three-dimensional map at each angle, and recording corresponding two-dimensional geographic coordinates of the control points on the two-dimensional map; and according to the coordinate corresponding relation of the control points, obtaining the two-dimensional geographic coordinates of the transformation reference points on the three-dimensional map by adopting a conversion formula from the three-dimensional coordinates to the two-dimensional coordinates, and converting the two-dimensional geographic coordinates of the transformation reference points into the three-dimensional geographic coordinates of the specified angle.
Has the advantages that: according to the coordinate corresponding relation of the control points, the two-dimensional geographic coordinate of the transformation reference point on the three-dimensional map is obtained by adopting a conversion calculation formula from the three-dimensional coordinate to the two-dimensional coordinate, the two-dimensional geographic coordinate of the transformation reference point is converted into the three-dimensional geographic coordinate of the specified angle, and the three-dimensional map can be conveniently and quickly converted from one angle to another angle.
Further, the modeling rendering module comprises a generating unit, and the generating unit is used for importing three-dimensional model data according to a development scheme, constructing a three-dimensional city virtual scene, and performing regional seamless rendering on the three-dimensional scene according to a preset angle to generate a multi-angle three-dimensional map.
Has the advantages that: and importing three-dimensional model data according to a development scheme, constructing a three-dimensional city virtual scene, and having high accuracy and being convenient for performing regional seamless rendering on the three-dimensional scene according to a preset angle.
Further, the modeling rendering module comprises a cutting unit for performing picture cutting on the three-dimensional map and obtaining a preset number of map tiles.
Has the advantages that: the three-dimensional map is subjected to picture cutting to obtain a preset number of map tiles, and the number and size of the map tiles, namely the number and size of the cut map, can be controlled in advance.
Furthermore, the modeling rendering module comprises a coding unit for performing data coding on the map tiles according to angles, the coding sequence of each layer of map tiles is the same, the map tiles at the lower left corner are used as starting tiles, the map tiles at the lower bottom row are coded in the sequence from left to right, and then the map tiles at the upper row are coded from left to right until the whole layer of map tiles are all coded.
Has the advantages that: the map tiles at the lower left corner are used as starting tiles, the map tiles in the row at the bottom are coded in the sequence from left to right, and then the map tiles in the row above are coded from left to right.
Further, the modeling rendering module includes an organization unit for storing map tiles, all map tiles in each row are stored in a first folder, all first folders are stored in a second folder, all second folders form a set of map data files, and each angle corresponds to a set of map data files.
Has the advantages that: the storage mode is distinct in level and beneficial to improving the rendering effect.
Furthermore, the modeling rendering module comprises a display unit for displaying rendering effects in an all-around manner by adopting a dynamic interaction technology.
Has the advantages that: therefore, future cities can be observed in an all-around manner, and the real object scene can be visually displayed on the premise of considering both acceptable rendering errors and good rendering effect.
Drawings
Fig. 1 is a block diagram of a system structure of an embodiment of the system for city operation simulation and overall planning.
Detailed Description
The following is further detailed by the specific embodiments:
example 1
An embodiment is substantially as shown in figure 1, comprising:
the development planning module is used for planning and designing a development scheme of urban construction;
the operation simulation module is used for deducing the development scheme based on the simulation model to obtain the operation effect of the development scheme in urban operation;
the modeling rendering module is used for constructing a three-dimensional city virtual scene according to a development scheme, and performing regional seamless rendering on the three-dimensional city virtual scene according to a preset angle to generate a multi-angle three-dimensional map; cutting the three-dimensional map to obtain a cut map; performing data coding and organization management on the cut map according to angles, so that map transformation is performed on the three-dimensional map at a plurality of angles to obtain a rendering effect;
and the scheme evaluation module is used for evaluating the development scheme according to the operation effect and the rendering result.
In this embodiment, the development planning module, the operation simulation module, the modeling rendering module, and the plan evaluation module are all integrated on a server, and the functions thereof are realized by software/programs/codes/computer instructions.
The specific implementation process is as follows:
and S1, the development planning module plans and designs a development scheme of the urban construction, for example, the urban planning module is constructed based on a geographic information system and two-dimensional and three-dimensional modeling simulation, and the urban planning module is constructed based on AutoCAD to realize the modeling design of terrain, earthwork, roads, plots and pipelines, so as to obtain the development scheme.
And S2, the operation simulation module deduces a development scheme based on the simulation model to obtain the operation effect of the development scheme in urban operation. For example, in the present embodiment, the operation simulation module is divided into a data layer, a service layer and an application layer; the data layer is mainly a three-dimensional model database, a simulation model database, a space object attribute database and/or a basic geographic information database, and is a data basis of the whole system; the service layer provides space data service of two-dimensional/three-dimensional data fusion, and data are issued in a service mode, so that data security protection is improved; the application layer provides three-dimensional scene display and model establishment for each function of the system, displays urban data by applying GIS, and performs simulation operation to obtain an operation effect; the data layer provides data for various service operations of the service layer, and various services of the service layer are combined to form various applications of the application layer.
S3, the modeling rendering module constructs a three-dimensional city virtual scene according to the development scheme, and performs regional seamless rendering on the three-dimensional city virtual scene according to a preset angle to generate a multi-angle three-dimensional map; cutting the three-dimensional map to obtain a cut map; and carrying out data coding and organization management on the cut map according to angles, so that the three-dimensional map is subjected to map transformation at a plurality of angles to obtain a rendering effect. In this embodiment, the modeling rendering module includes a generating unit, a cutting unit, a coding unit, an organizing unit and a transforming unit, and the specific process is as follows:
firstly, a generating unit imports three-dimensional model data according to a development scheme, constructs a three-dimensional city virtual scene, and carries out regional seamless rendering on the three-dimensional scene according to a preset angle to generate a multi-angle three-dimensional map;
then, the cutting unit cuts the pictures of the three-dimensional map to obtain a preset number of map tiles, so that the map tiles can be controlled in advance, namely the number and the size of the cut map;
then, the coding unit carries out data coding on the map tiles according to angles, the coding sequence of each layer of map tiles is the same, the map tiles at the lower left corner are used as starting tiles, a row of map tiles at the bottom are coded in a left-to-right sequence, and then a row of map tiles at the top are coded from left to right until all the map tiles at the whole layer are coded, so that the coding mode is quick and accurate and is not easy to omit and make mistakes;
then, the organization unit stores the map tiles, all the map tiles in each row are stored in a first folder, all the first folders are stored in a second folder, all the second folders form a set of map data files, and each angle corresponds to one set of map data files, so that the storage level is clear, and the rendering effect can be improved;
finally, the transformation unit acquires a two-dimensional map, collects control points on the three-dimensional map at each angle, and records corresponding two-dimensional geographic coordinates of the control points on the two-dimensional map; and according to the coordinate corresponding relation of the control points, a conversion formula from the three-dimensional coordinate to the two-dimensional coordinate is adopted to obtain the two-dimensional geographic coordinate of the conversion reference point on the three-dimensional map, and the two-dimensional geographic coordinate of the conversion reference point is converted into the three-dimensional geographic coordinate of the specified angle, so that the three-dimensional map can be conveniently and quickly converted from one angle to another angle to obtain the rendering effect.
And S4, evaluating the development scheme by the scheme evaluation module according to the operation effect and the rendering result, for example, calculating a sustainable development index according to the operation effect and the rendering result by adopting a preset algorithm, and judging whether the sustainable development index meets the requirement.
Example 2
The difference with embodiment 1 is that the modeling rendering module includes a display unit, and the dynamic interaction technology is adopted to perform all-around display on the rendering effect, so that future cities can be subjected to all-around observation in the presence, and the real object scene is visually displayed on the premise of considering acceptable rendering errors and good rendering effect.
Example 3
The difference from embodiment 2 is only that the structure of the three-dimensional map is restored. In the embodiment, the posture information of the pictures of residential houses, commercial buildings and the like, for example, the information of various postures taken by the pictures, is acquired in advance according to the development scheme of urban construction; the specific process is as follows: firstly, sparsely reconstructing the attitude information of the pictures to obtain sparse point cloud and the attitude information of the pictures; then, storing the posture information of the picture, and rebuilding a three-dimensional map; then, acquiring each picture snapshot based on the posture information of the pictures, and forming a picture pair set, namely, constructing a camera position in the reestablished three-dimensional map by using the posture information of the sparsely reconstructed pictures, acquiring snapshots under the same posture through the camera, wherein each picture and the corresponding snapshot form a picture pair; finally, the straight line contour in the picture is identified, namely, in each picture pair, the straight line contour in the picture is identified, the straight line identified in the picture is mapped into the three-dimensional map through the snapshot, and the structure of the three-dimensional map is repaired by using the constraint of the straight line. Through the mode, the rendering effect can be effectively improved, the inaccuracy of the linear structure in the rendering process is avoided, and the structural experience feeling of the rendered three-dimensional map is improved on the whole.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. A city operation simulation and overall planning system is characterized by comprising:
the development planning module is used for planning and designing a development scheme of urban construction;
the operation simulation module is used for deducing the development scheme based on the simulation model to obtain the operation effect of the development scheme in urban operation;
the modeling rendering module is used for constructing a three-dimensional city virtual scene according to a development scheme, and performing regional seamless rendering on the three-dimensional city virtual scene according to a preset angle to generate a multi-angle three-dimensional map; cutting the three-dimensional map to obtain a cut map; performing data coding and organization management on the cut map according to angles, so that map transformation is performed on the three-dimensional map at a plurality of angles to obtain a rendering effect;
and the scheme evaluation module is used for evaluating the development scheme according to the operation effect and the rendering result.
2. The city operation simulation and orchestration planning system of claim 1, wherein the modeling rendering module comprises a transformation unit to obtain a two-dimensional map, collect control points on the three-dimensional map at each angle, and record corresponding two-dimensional geographic coordinates of the control points on the two-dimensional map; and according to the coordinate corresponding relation of the control points, obtaining the two-dimensional geographic coordinates of the transformation reference points on the three-dimensional map by adopting a conversion formula from the three-dimensional coordinates to the two-dimensional coordinates, and converting the two-dimensional geographic coordinates of the transformation reference points into the three-dimensional geographic coordinates of the specified angle.
3. The city operation simulation and overall planning system of claim 2, wherein the modeling rendering module includes a generating unit, which is configured to import three-dimensional model data according to a development scheme, construct a three-dimensional city virtual scene, and perform regional seamless rendering on the three-dimensional scene according to a preset angle to generate a multi-angle three-dimensional map.
4. The city operation simulation and orchestration planning system of claim 3, wherein the modeling rendering module comprises a cutting unit configured to cut a three-dimensional map into a picture and obtain a preset number of map tiles.
5. The city operation simulation and orchestration planning system of claim 4, wherein the modeling rendering module comprises a coding unit configured to encode map tiles in angle, the map tiles of each layer are encoded in the same order, a lower left map tile is used as a start tile, a lower most row of map tiles is encoded in a left-to-right order, and a previous row of map tiles is encoded from left to right until the entire layer of map tiles is encoded.
6. The city operation simulation and orchestration planning system of claim 5, wherein the modeling rendering module comprises an organization unit to store map tiles, all map tiles in each row being stored in a first folder, all first folders being stored in second folders, all second folders constituting a set of map data files, one set for each angle.
7. The city operation simulation and orchestration planning system of claim 6, wherein the modeling rendering module comprises a presentation unit for performing an all-around presentation of rendering effects using a dynamic interaction technique.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872492A (en) * | 2010-06-09 | 2010-10-27 | 中国科学院深圳先进技术研究院 | Multi-angle map implementation method of three-dimensional simulation city |
| CN107977766A (en) * | 2017-10-09 | 2018-05-01 | 中国电子科技集团公司第二十八研究所 | A kind of city operations emulation and overall planning system |
| CN112530005A (en) * | 2020-12-11 | 2021-03-19 | 埃洛克航空科技（北京）有限公司 | Three-dimensional model linear structure recognition and automatic restoration method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872492A (en) * | 2010-06-09 | 2010-10-27 | 中国科学院深圳先进技术研究院 | Multi-angle map implementation method of three-dimensional simulation city |
| CN107977766A (en) * | 2017-10-09 | 2018-05-01 | 中国电子科技集团公司第二十八研究所 | A kind of city operations emulation and overall planning system |
| CN112530005A (en) * | 2020-12-11 | 2021-03-19 | 埃洛克航空科技（北京）有限公司 | Three-dimensional model linear structure recognition and automatic restoration method |
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Application publication date: 20210727 |