CN115310160A - Mapping result management and sharing system and method based on AutoCAD - Google Patents

Mapping result management and sharing system and method based on AutoCAD Download PDF

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CN115310160A
CN115310160A CN202210843465.8A CN202210843465A CN115310160A CN 115310160 A CN115310160 A CN 115310160A CN 202210843465 A CN202210843465 A CN 202210843465A CN 115310160 A CN115310160 A CN 115310160A
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包华杰
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Abstract

The invention discloses a surveying and mapping result management and sharing system and method based on AutoCAD, which is characterized in that a user selects an area to be loaded with data in an AutoCAD software window, a plug-in inquires a database and returns all data in the area, the user selects the required data, then the data is downloaded through a file management server system and then automatically loaded into the AutoCAD software, and the data loading required by the user is completed. The invention does not need to consider the storage position, the coordinate system and the file format of the loaded picture data; data are uniformly stored in a file server, so that uniform management is facilitated; all the graph resources loaded by the user have records, so that data secret management is facilitated; the same set of coordinate conversion parameters are adopted in the operation units, and the conversion precision is controllable; the local cache data can be deleted at any time, so that sensitive data are prevented from being involved in secret; compared with the traditional method, the method is faster and more efficient in loading the required data.

Description

Mapping result management and sharing system and method based on AutoCAD
Technical Field
The invention relates to the technical field of surveying and mapping, in particular to a surveying and mapping result management and sharing system and method based on AutoCAD.
Background
The AutoCAD software is widely applied to the surveying and mapping industry, the surveying and mapping industry provides a large amount of basic geographic data for social development, economic planning, national resource survey, urban construction planning and other aspects, however, due to the fact that the surveying and mapping result is large in data size, frequent in application, high in confidentiality level, difficult to share and the like, confusion of surveying and mapping result management is caused, and current requirements are difficult to meet in management modes and efficiency.
Therefore, a surveying and mapping result management and sharing system and method based on AutoCAD becomes a problem to be solved urgently.
Disclosure of Invention
The invention solves the technical problem of providing a plug-in unit for rapid data loading (including vector diagram and grid diagram) of AutoCAD in a local area network and a using method thereof.
In order to solve the problems, the technical scheme provided by the invention is as follows: a surveying and mapping result management and sharing system based on AutoCAD comprises a data uploading module, a data downloading module, a data loading module and a coordinate conversion module;
the data uploading module is used for uploading vector data and raster data;
the data downloading module: according to the range framed and selected by the user in the AutoCAD window, inquiring all available data in the range from the database and displaying the available data in the list, after the user selects the required data, judging whether a local cache exists by the program, and if not, requesting to download the file server;
the data loading module: according to a file selected by a user in the data downloading module, coordinate positioning information of the file is inquired in a database, coordinate conversion is carried out according to a coordinate system selected by the user, and finally the file is loaded in AutoCAD software;
the coordinate conversion module: and calculating conversion parameters of different coordinate systems by using the known control points to realize mutual conversion among the different coordinate systems.
As an improvement, the coordinate conversion includes coordinate point conversion, autoCAD object conversion, text file conversion, and dxf file conversion.
As an improvement, the database comprises a project database, a vector database and a grid database;
the main fields of the project database include: ID of project, project name, data format, drawing proportion, coordinate system, production time, production unit and network path;
the main fields of the vector database include: ID, picture number, file path, positioning range and text content of the item;
the main fields of the grid database include: item ID, picture number, file path, location range, resolution, grid width, grid height production time, production unit.
A surveying and mapping result management and sharing method based on AutoCAD includes the following steps:
(1) Importing plug-in registration content into an operating system registry to realize the starting of the plug-in along with AutoCAD;
(2) Running the plug-in and initializing each control, calling and displaying the existing project in the database, and uploading each item of data of the new project;
(3) Respectively obtaining positioning coordinates of vector data and raster data in AutoCAD software according to a file name naming rule of basic mapping data and a positioning file of the raster data, storing the positioning coordinates, file size information and the like in a database, and uploading the files to a file server;
(4) According to the range framed and selected by the user in the AutoCAD window, inquiring all available data in the range from the database and displaying the available data in the list, after the user selects the required data, judging whether a local cache exists by the program, and if not, requesting to download the file server;
(5) And inquiring coordinate positioning information of the file in a database according to the file selected by the user, performing coordinate conversion according to a coordinate system selected by the user, and finally loading in the AutoCAD software.
As an improvement, the mapping result data acquisition coordinate positioning method comprises the following steps:
(1) Naming mode of vector diagram: the file name is a positioning coordinate of the lower left corner of the vector diagram, can be extracted from the file name, and then the coordinate range of each file vector data is calculated according to the scale R of the diagram;
(2) The calculation formula of the vector data coordinate range is as follows:
lower left corner coordinates: x is the number of Left lower part ＝x 0 y Left lower part ＝y 0
Coordinates of the upper left corner: x is the number of Upper left of ＝x Left lower part +R×0.5 y Upper left of ＝y 0
Coordinates of the upper right corner: x is the number of Upper right part ＝x Upper left of y Upper right part ＝y Upper left of +R×0.5
Lower right corner coordinates: x is a radical of a fluorine atom Lower right ＝x 0 y Lower right ＝y Upper right part
After the coordinate range is obtained, the coordinates are uniformly converted into a 1980 Xian coordinate system;
(3) The grid coordinate range obtained by the grid coordinate information file is as follows:
first row: a east to one pixel actual length
A second row: rotation of D-raster image in north direction
Third row: rotation of B raster image in east direction
Fourth row: e north direction one pixel actual length
The fifth element: east coordinate value of center of upper left pixel of C grid image
A sixth row: north coordinate value of center of upper left pixel of F grid image
Grid upper left corner coordinates:
coordinates of the upper left corner: x Upper left of ＝F Y Upper left of ＝C
Coordinates of the upper right corner: x Upper right part = dxWidth + X Upper left of Y Upper right part = AxWidth + Y Upper left of
Lower right corner coordinates: x Lower right part = D × Width + E × height + X Upper left of Y Lower right part = AxWidth + BxGao + Y Upper left of
Left lower partAngular coordinates: x Lower right = E × high + X Left side of Upper Y Lower right = bx high + Y Upper left of 。
Compared with the prior art, the invention has the advantages that:
1. the storage position, the coordinate system and the file format of the loaded surveying and mapping result do not need to be considered.
2. Data are uniformly stored in the file server, and uniform management is facilitated.
3. The graph resources loaded by the user are recorded, and data secret management is facilitated.
4. The same set of coordinate conversion parameters are adopted in the operation units, and the conversion precision is controllable.
5. The local cache data can be deleted at any time, and sensitive data are prevented from being confidential.
6. Compared with the traditional method, the method has the advantages that the data required by loading is quicker and more efficient.
Drawings
Fig. 1 is a data uploading and warehousing flow chart of the surveying and mapping result management and sharing system and method based on AutoCAD.
FIG. 2 is a flow chart of data loading to CAD of the mapping result management and sharing system and method based on AutoCAD.
FIG. 3 is a drawing resource uploading and warehousing interface drawing of the surveying and mapping result management and sharing system based on AutoCAD.
FIG. 4 is an interface diagram for displaying and checking drawings in the user frame selection range of the surveying and mapping result management and sharing system based on AutoCAD.
FIG. 5 is a dxf file conversion interface diagram of the mapping result management and sharing system based on AutoCAD.
Detailed Description
The following describes the mapping result management and sharing system and method based on AutoCAD in detail with reference to the accompanying drawings.
With reference to the accompanying drawings 1-5, the detailed implementation process of the mapping result management and sharing system based on AutoCAD is as follows:
the invention utilizes an AutoCAD secondary development interface to develop a data uploading module, a data downloading module, a data loading module, a coordinate conversion module and the like.
The data uploading module: the uploaded data includes vector data and raster data. And respectively obtaining the positioning coordinates of the vector data and the raster data in the AutoCAD software according to the file name naming rule of the basic mapping data and the positioning file of the raster data, storing the information such as the positioning coordinates and the file size into a database, and uploading the file to a file server.
A data downloading module: and inquiring all available data in the range from the database according to the range framed by the user in the AutoCAD window and displaying the available data in the list, judging whether a local cache exists by the program after the user selects the required data, and otherwise requesting to download from the file server.
A data loading module: and inquiring coordinate positioning information of the file in a database according to the file selected by the user in the data downloading module, carrying out coordinate conversion according to a coordinate system selected by the user, and finally loading in the AutoCAD software.
A coordinate conversion module: and calculating conversion parameters of different coordinate systems by using the known control points to realize the mutual conversion among the different coordinate systems, including coordinate point conversion, autoCAD object conversion, text file conversion and dxf file conversion.
The plug-in mainly comprises an EXE file and two DLL files which are respectively 'data uploading.exe', 'MyClassDll.dll' and 'MydlForCad2016.dll' files, and 'data uploading.exe' mainly completes data uploading to a file server, data warehousing and the like; the MyClassDll.dll file mainly has the functions of realizing database operation, coordinate conversion, parameter setting, single file uploading and downloading, data loading and the like; the "MydlForCad2016. Dll" file functions primarily in responding to various custom events, loading data into the CAD, CAD custom command definitions, custom menu loading, interaction with the CAD, etc.
The plug-in adopts Microsoft SQL Server database, which is mainly used for project database, vector database and grid database. The project database main fields include: item ID, item name, data format, drawing scale, coordinate system, production time, production unit, network path, etc.; the vector database main fields include: item ID, number of drawings, path of file, location range, text content, etc.; the main fields of the grid database include: item ID, picture number, file path, location range, resolution, grid width, grid height, production time, production unit, etc.
With reference to fig. 1-5, the image data management and sharing system and method based on AutoCAD of the present invention are implemented as follows:
installation of the plug-in: and importing the following contents into an operating system registry to realize the startup of the plug-in along with the CAD.
[ HKEY _ LOCAL _ MACHINE \ SOFTWARE \ Autodesk \ AutoCAD \ CAD version number \\ ACAD-F001\ Applications \ MyCadDll ]
"describe" "=" { plug-in name } ".
"load" = "{ Dll file path }".
“LOADCTRLS”＝dword：00000002
“MANAGED”＝dword：00000001。
1. The data uploading is realized specifically: after the 'data uploading' and the 'exe' program are operated, initialize is called to initialize each control in the form, getShowProjectList () is called to return the existing item in the database and is displayed in a ListBox1 in a list mode, the name of the existing item is clicked, the name details of the item can be displayed on the left side, the item can be edited by selecting an 'editing' mode, and the modified content can be stored after the editing is finished; when the 'new' mode is selected, a common default value is preset in a left detail column, the contents such as a project name, a path where uploaded data are located and the like are filled in, after 'upload start' is clicked, a GetProjectRecordsetAlr method is called to obtain a new project attribute mProjectSetAlr from a window, the integrity of the new project attribute is judged, if the integrity is correct, doFTPUploadFileAll (mProjectSetAlr) is called, and a data uploading program is started. Before uploading data, calling mGetFTPFileDirectory to create a folder on a server for storing data to be uploaded, calling getTuZilist to return a local data list to be uploaded, initializing a progress bar and the like, calling doFTPUploadFileAsync (BDFileNameListID) from BDFileNameList ID =0 to upload data to the file server, calling isfileExists to check whether the file server has a file or not when the file is uploaded, calling DoFTPDelefiexfile to delete the file when the file is in a covering state, then executing FTPUploadFileAsync asynchronous uploading data, and calling uploadFileCompleted to finish uploading the current file and then executing uploading the next file. And after all the files are uploaded, executing the SaveFileDataArr to store the project data and the data information to a network database. In the SaveFileDataArr function, the savepojectdata function holds project information, the AddDwgData function holds vector information, and the adddiffdata function holds raster information. The GetRecordAlrDwg function returns a RecordArrDwg object, and the FileNametoXY function returns the file data range according to the file name, and the principle is described as follows:
conventional naming of vector diagrams: and the north coordinate-east coordinate dwg is a file name which is a positioning coordinate of the lower left corner of the vector diagram, can be extracted from the file name, and then calculates the coordinate range of each file vector data according to the scale R of the diagram. The calculation formula is as follows:
lower left corner coordinates: x is the number of Left lower part ＝x 0 y Left lower part ＝y 0
Coordinates of the upper left corner: x is the number of Upper left of ＝x Left lower part +R×0.5 y Upper left of ＝y 0
Coordinates of the upper right corner: x is the number of Upper right part ＝x Upper left of y Upper right part ＝y Upper left of +R×0.5
Lower right corner coordinates: x is a radical of a fluorine atom Lower right ＝x 0 y Lower right ＝y Upper right part
After the coordinate range is obtained, the coordinates are uniformly converted into a 1980 Saian coordinate system.
The principle of obtaining the coordinate range through the grid coordinate information file is as follows:
grid coordinate information file:
first row: a east to one pixel actual length
A second row: rotation of D-raster image in north direction
Third row: rotation of B raster image in east direction
Fourth row: e North direction one pixel actual length (usually a negative number)
The fifth element: east coordinate value of center of upper left pixel of C grid image
A sixth row: north coordinate value of center of upper left pixel of F grid image
Grid upper left corner coordinates:
coordinates of the upper left corner: x Upper left of ＝F Y Upper left of ＝C
Coordinates of the upper right corner: x Upper right part = dxWidth + X Upper left of Y Upper right part = AxWidth + Y Upper left of
Lower right corner coordinates: x Lower right = dxwide + E × high + X Upper left of Y Lower right = AxWidth + BxGao + Y Upper left of
Lower left corner coordinates: x Lower right part = ex high + X Left side of Upper Y Lower right = bx high + Y Upper left of
2. The data loading is realized specifically: after the AutoCAD is started, two files, namely MyClassDll.dll and MydlForCad2016.dll, are automatically loaded, then a custom ShowMyMenu function is executed, a custom menu is added to an original AutoCAD menu, the menu name is a self-development program, the menu comprises a plurality of auxiliary functions, and the main functions of the plug-in are loaded data in the menu. Clicking 'load data', the program loads the LoadFileToCAD class module, and firstly executing parameter configuration, such as coordinate system and gallery selection, of the ReaderConfig when the module is loaded and closed last time in the class module. And dividing three categories, namely vector data, raster data, picture frames and the like, into lists and displays according to data types.
The point "setting" is to display a setting window, and can set search data items such as vector data, frame data, raster data, and the like, and can set a path (cache path) for storing downloaded data. And clicking 'cache sorting' in a setting window, judging the files in the cache path one by using a DateDiff function, and deleting the files with the creation date exceeding one year.
The method comprises the steps of displaying an existing data range, displaying an existing data item list window, and respectively listing according to vector item names, raster item names, unmanned plane item names, vector graph scales, raster graph resolutions, point cloud data and the like, so that searching is facilitated. After selecting the corresponding option, assigning the global variable RangeSqlstr to be the corresponding SQL query statement, returning to the LoadFileToCAD class module, triggering an InsertFWEvent event, receiving the event by LoadFileToCADForm _ InsertFWEvent, executing a ShowAllFW method, and displaying the range of the existing data in the CAD according to the RangeSqlstr query condition.
Clicking 'manual loading of a local image', calling and opening a file dialog box OpenFileDialog, returning a file path after a user selects a jpg or tif file, obtaining attributes of raster data through a GetTIFLocination Arr method, triggering an InsertImageEven event, receiving the event through mInsertDataToCAD _ InsertImageEvent, and executing the InsertImage to complete loading of the raster data.
Clicking the 'picking range', triggering a Click _ GetRerectBanchoice event, responding by a LoadFileToCADForm _ Click _ GetRerectchoice method of a loaded data module, executing the GetRerectchoice method to acquire four vertex coordinate character strings of a boxed range from a CAD window, then executing a ShowDataGridView method, in the method, converting the coordinates of the four vertices of the range into a 1980 coordinate system, then executing the GetDataTableFormCood method to respectively inquire all available data in a grid database and a vector database, and finally executing the display of SetDataGridView in a DataGridView control of a window, and waiting for a user to select. And clicking a certain behavior selection state in the list by the user, and clicking the behavior selection state again to be a deselected state. An application coordinate system of data is selected at the lower left corner of the window, and the coordinate conversion among a Beijing coordinate system in 1954, a 1980 Sian coordinate system and a 2000-year national geodetic coordinate system is supported.
Clicking ' determination ', sequentially executing a GetInpcoodrsys method to obtain an application coordinate system, a GetAllLoadtiferrList method to obtain a list of data to be downloaded, and a GetAllFileSize method to obtain the total amount of all the data to be downloaded, executing a BiginDownloadFile method to start downloading from the 1 st file, in the BiginDownloadFile method, ' mFTPDowloadFile = New file uploading and downloading ', instantiating a downloading module example, executing an FTPDowloadfile's FTPDowloadload method to submit a downloading request, executing a DownloadFileAsync method to realize asynchronous downloading of the file, calling client _ Downloadprogress during downloading, triggering a progress changed event, and continuously updating the downloading progress in a window. And after all the data are downloaded, executing an InsertImageAsyc method, and loading the data one by one in a CAD window. In the InsertImageAsyc method, different types of data adopt different loading methods, vector data performs the InsertDwgToCAD method, and triggers an insertdwgeneven event. The grid data implements the InsertImageToCAD method and triggers an InsertImageEvent event. mInsertDataToCAD _ InsertdwgEvent, mInsertDataToCAD _ InsertImageEvent in the load data module respond to the corresponding events, respectively, and execute Insertdwg and InsertImage methods, respectively. And when the application coordinate system is different from the original coordinate system of the loaded data, converting by adopting a seven-parameter method. In the Insertdwg method, parameters such as a rotation angle, a scaling ratio, a rotation center point, a rotation axis and the like of a 4 x 4 transformation matrix are calculated according to the converted coordinates; and calculating parameters such as the left lower corner coordinate of the grid, the height of the grid, the width of the grid, the rotation angle and the scaling according to the converted coordinates in the InsertImage method.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. A survey and drawing achievement management and sharing system based on AutoCAD is characterized in that: the device comprises a data uploading module, a data downloading module, a data loading module and a coordinate conversion module;
the data uploading module is used for uploading vector data and raster data;
the data downloading module: according to the range framed and selected by the user in the AutoCAD window, inquiring all available data in the range from the database and displaying the available data in the list, after the user selects the required data, judging whether a local cache exists by the program, and if not, requesting to download the file server;
the data loading module: according to a file selected by a user in the data downloading module, coordinate positioning information of the file is inquired in a database, coordinate conversion is carried out according to a coordinate system selected by the user, and finally the file is loaded in AutoCAD software;
the coordinate conversion module: and calculating conversion parameters of different coordinate systems by using the known control points to realize mutual conversion among the different coordinate systems.
2. The mapping result management and sharing system based on AutoCAD according to claim 1, characterized in that: the coordinate conversion comprises coordinate point conversion, autoCAD object conversion, text file conversion and dxf file conversion.
3. The mapping result management and sharing system based on AutoCAD according to claim 2, characterized in that: the database comprises a project database, a vector database and a grid database;
the main fields of the project database include: item ID, item name, data format, drawing proportion, coordinate system, production time, production unit and network path;
the main fields of the vector database include: ID, picture number, file path, positioning range and text content of the item;
the main fields of the grid database include: ID of project, picture number, file path, positioning range, resolution, grid width, grid height, production time and production unit.
4. A surveying and mapping result management and sharing method based on AutoCAD is characterized in that: the AutoCAD-based survey result management and sharing system as recited in any of claims 1-3, wherein the survey result management and sharing method comprises the following steps:
(1) Importing plug-in registration content into an operating system registry to realize the starting of the plug-in along with AutoCAD;
(2) Running the plug-in and initializing each control, calling and displaying the existing project in the database, and uploading each item of data of the new project;
(3) Respectively obtaining vector data and positioning coordinates of the raster data in the AutoCAD software according to a file name naming rule of basic mapping data and a positioning file of the raster data, storing the positioning coordinates and file size information into a database, and uploading the files to a file server;
(4) According to the range framed and selected by the user in the AutoCAD window, inquiring all available data in the range from the database and displaying the available data in the list, after the user selects the required data, judging whether a local cache exists by the program, and if not, requesting to download the file server;
(5) And inquiring coordinate positioning information of the file in a database according to the file selected by the user, performing coordinate conversion according to a coordinate system selected by the user, and finally loading in the AutoCAD software.
5. The mapping result management and sharing method based on AutoCAD according to claim 4, characterized in that: the coordinate positioning method for obtaining the mapping result data comprises the following steps:
(1) Naming mode of vector diagram: the file name is a positioning coordinate of the lower left corner of the vector diagram, can be extracted from the file name, and then the coordinate range of each file vector data is calculated according to the scale R of the diagram;
(2) The calculation formula of the coordinate range of the vector data is as follows:
lower left corner coordinates: x is the number of Left lower part ＝x 0 y Left lower part ＝y 0
Coordinates of the upper left corner: x is the number of Upper left of ＝x Left lower part +R×0.5 y Upper left of ＝y 0
Coordinates of the upper right corner: x is the number of Upper right part ＝x Upper left of y Upper right part ＝y Upper left of +R×0.5
Lower right corner coordinates: x is the number of Lower right part ＝x 0 y Lower right ＝y Upper right part
After the coordinate range is obtained, the coordinates are uniformly converted into a 1980 Xian coordinate system;
(3) The grid coordinate range obtained by the grid coordinate information file is as follows:
first row: a east to one pixel actual length
A second row: rotation of D grid image in north direction
Third row: rotation of B raster image in east direction
Fourth row: e north direction one pixel actual length
The fifth element: east coordinate value of center of upper left pixel of C grid image
A sixth row: north coordinate value of center of upper left pixel of F grid image
Grid upper left corner coordinates:
coordinates of the upper left corner: x Upper left of ＝F Y Upper left of ＝C
Coordinates of the upper right corner: x Upper right part = dxWidth + X Upper left of Y Upper right part = AxWidth + Y Upper left of
Lower right corner coordinates: x Lower right part = dxwide + E × high + X Upper left of Y Lower right part = AxWidth + BxGao + Y Upper left of
Lower left corner coordinates: x Lower right part = ex high + X Left side of Upper Y Lower right = bx high + Y Upper left of 。
CN202210843465.8A 2022-07-18 2022-07-18 Mapping result management and sharing system and method based on AutoCAD Pending CN115310160A (en)

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CN115859414A (en) * 2023-02-27 2023-03-28 中国铁路设计集团有限公司 Cross-coordinate system use method for global scale geographic information base map

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* Cited by examiner, † Cited by third party
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CN115859414A (en) * 2023-02-27 2023-03-28 中国铁路设计集团有限公司 Cross-coordinate system use method for global scale geographic information base map

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