CN116795347B - Map-oriented automatic comprehensive graphical programming system and device - Google Patents
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Abstract
The invention discloses a map-oriented automatic comprehensive graphical programming system and a map-oriented automatic comprehensive graphical programming device. And the graphical programming system packages various functions related to map integration into symbolic functional nodes, and generates graphical program codes and an automatic map integration program by editing, dragging and connecting different functional nodes in a program drawing board. In the process of program development and operation, the multi-scale comprehensive result and the intermediate data can present various rendering effects on the visualization device, and the comprehensive result is conveniently corrected through touch operation. The corrective action may be fed back to the programming system to automatically update the code and data. The invention changes the man-machine interaction mode of the traditional map comprehensive software, reduces the threshold of program development, improves the efficiency of building, maintaining and secondary development of the map automatic comprehensive scheme, and further improves the production efficiency and quality of multi-scale space data.
Description
Technical Field
The invention relates to the field of map synthesis in map graphics and geographic information engineering, in particular to a graphic programming system and device for map automatic synthesis, which are used for constructing, maintaining and secondarily developing a multi-scale expression program of map synthesis or geographic information.
Background
The multi-scale map product plays a key role in a plurality of fields such as national security, space planning, traffic management, disaster emergency, location service and the like, and is widely used as an important communication medium and decision tool. In the information age, with the development of emerging geographic information carriers and projects such as self-media, digital twin, real-scene three-dimensional and the like, maps are expanded from traditional paper media to various digital media, and the granularity, the dimension, the precision and the speed of the multi-scale expression of the geographic information are required to be higher.
Map synthesis, which is a core technology for multi-scale expression of geospatial information, has been a very challenging and creative research field in mapping and graphics. The method mainly researches engineering, technology and science for abstracting and summarizing space data when a large scale map is contracted into a small scale map. The traditional multi-scale space data production adopts a multi-library multi-version strategy, and the method is easy to cause the problems of information redundancy, low efficiency, difficult updating and the like; the production technology mode of the method depends on manual operation and decision making of map drawing staff. Therefore, the automation degree of map integration is highly demanded to be improved.
The existing computer graphics or geographic information system software comprises a map comprehensive function, but has certain limitations: (1) The existing software only provides specific comprehensive operators, and the selection of operators, the setting of parameters and the control of the whole comprehensive flow depend on a large amount of manual operation and decision making, so that the efficiency of the comprehensive process is low, and the reusability of the comprehensive scheme is poor. (2) The generalization performance of most program operators is not high, and specific comprehensive requirements cannot be met, so that a large amount of manual correction is involved in the process of drawing; moreover, secondary development support for map comprehensive correlation functions is weak. (3) Because of the heterogeneity of geographic space, maps in different areas also present different mapping requirements; the drawing requirements of different types of thematic maps are different, the conventional software system cannot provide a convenient and flexible program development method, and the map comprehensive scheme has high difficulty in rapid iterative updating. (4) The existing drawing software has a higher use threshold, and users usually need to be subjected to long-time operation and development training to independently build a map comprehensive scheme.
Map drawing staff usually master a great deal of map comprehensive knowledge and related drawing criteria, but the program development capability is weak, which is unfavorable for building a map comprehensive program with high automation degree. However, thanks to the symbolic linguistic nature of the map, the graphical interaction is more friendly to map mapping personnel than the common computer programming languages. Therefore, a scheme is necessary to be explored, on one hand, the domain knowledge and professional characteristics mastered by the diagramming staff can be fully exerted, on the other hand, the map automatic comprehensive program can be efficiently developed, the aims of making the best of the strong and short are truly achieved, and the efficiency and quality of the multi-scale expression of the geographic information are improved.
Disclosure of Invention
In view of the above, the invention provides a map-oriented automatic comprehensive graphical programming system and a map-oriented automatic comprehensive graphical programming device, which overcome the defects of the existing map comprehensive software and hardware systems and construct a map comprehensive program building system which is clear, visual, convenient to operate and high in automation degree. Based on the map comprehensive theory, method and engineering characteristics, the invention specially designs the graphical programming system and device built aiming at the map automatic comprehensive program, greatly reduces the threshold of program development and provides assistance for quickly building the map automatic comprehensive solution.
The invention provides a map integration-oriented graphical programming system and a map integration-oriented graphical programming device. As shown in fig. 1, includes: the system comprises a map comprehensive graphical programming system, a map comprehensive result display interaction device and a central processing terminal for supporting the two to operate.
First, the invention provides a map comprehensive graphical programming system. The characteristics include: (1) The system consists of a node generator, a functional node library, a program drawing board, a code editor and a compiler; (2) Based on basic theory, method and engineering characteristics of map synthesis, various types of functional nodes are defined to be managed by a functional node library, and the types comprise: the system comprises a data acquisition node, a data preprocessing node, a comprehensive decision node, an element comprehensive node, a comprehensive constraint node, a data post-processing node, a comprehensive quality inspection node and a visualization node; (3) Adopting a graphical interaction mode, and writing program codes in a program drawing board through selecting, arranging and connecting different functional nodes; (4) The visual expression of the functional nodes and the data connecting lines thereof conforms to the design rule of map symbols, so that a user can intuitively understand the functions and the data states of the nodes; (5) The functional node supports a self-defining mode, and a user can modify an original script corresponding to the node to complete secondary development; (6) The system supports a guided programming mode, a user sequentially inputs related parameters of a map comprehensive scheme through a guide view, and the system automatically generates graphical program codes; (7) The system supports a free programming mode, and a user can autonomously select and connect related functional nodes according to the understanding of the user on the map comprehensive task to build a map comprehensive scheme. The system reduces the threshold of map comprehensive program development and improves the production efficiency and quality of multi-scale map products.
Secondly, the invention provides a map comprehensive result display interaction device. The device comprises the following characteristics: (1) The system can be connected with a graphical programming system or a map comprehensive program compiled and generated by the system, and intermediate data and multi-scale comprehensive results generated during development and running of the map comprehensive program are displayed in real time. (2) And the touch operation is supported, visual interaction can be performed, and the comprehensive result is edited and corrected. The touch operation described by the invention needs to preferentially meet the function of finger touch, but any similar operation of devices such as a mouse, a touch pen and the like needs to be compatible at the same time, so that the compatibility of the operation on multiple systems and multiple devices is ensured. (3) The edited and revised behavior is recorded and fed back to the map comprehensive graphical programming system, and corresponding program codes are automatically updated or generated. (4) The display states of the map on different media such as a PC end, a mobile end, common paper and the like and different sizes can be rendered, so that a user can intuitively feel the visual effect of the map comprehensive result on various media. The device provides an intuitive and simple interaction mode, and is convenient for observing the map comprehensive result and adjusting the comprehensive scheme.
Finally, the invention provides electronic terminal equipment. The terminal equipment comprises the following modules: the device comprises a computing module, a storage module, a display module, a network module and a device expansion module. The terminal is responsible for supporting the operation, communication, storage and expansion of the graphical programming system and the visual interaction device.
The interactive flow of the invention is shown in figure 2, and the user writes the program through the map comprehensive graphical programming system and generates graphical program codes. The code can be maintained, updated and secondarily developed through a programming system; the system can be packaged into advanced function nodes for warehousing for subsequent program development; the map comprehensive task can be directly compiled into a map comprehensive program capable of running independently, and the map comprehensive task is finished in batches in a production environment. In the development and program running process, a user can observe the map comprehensive result in real time through the visual interaction device, and adjust the program codes and correct the comprehensive data through touch interaction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. The drawings described below are illustrative of the invention and are not to be construed as limiting the invention.
FIG. 1 is a schematic diagram of the features of the map integration-oriented graphical programming system and apparatus provided by the present invention.
Fig. 2 is a schematic diagram of an interaction flow of the map integration-oriented graphical programming system and device provided by the invention.
FIG. 3 is a schematic diagram of a functional block of a graphical programming system provided by the present invention.
Fig. 4 is a schematic diagram of a node generator workflow provided by the present invention.
FIG. 5 is a schematic diagram of functional nodes and their types in a graphical programming system according to the present invention.
FIG. 6 is a flow chart of a guided programming method provided by the present invention.
Fig. 7 is a schematic diagram of an example of a road network integration scheme graphic code provided by the present invention.
Fig. 8 is a schematic diagram of a map comprehensive result real-time visualization scheme provided by the invention.
Fig. 9 is a schematic diagram of a portion of a touch operation case provided in the present invention.
Detailed Description
The following describes the technical scheme in the embodiment of the present invention fully with reference to the accompanying drawings. The described embodiments are only some, but not all, embodiments of the invention. The following detailed description of the embodiments of the invention, provided in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
The basic interactive content of the map integration-oriented graphical programming system and the map integration-oriented graphical programming device comprises the following steps: the user generates and manages map comprehensive function nodes on the map comprehensive graphical programming system, then selects and connects the function nodes to obtain graphical program codes, and compiles and generates map comprehensive programs capable of running independently; the user displays the interaction device through the map comprehensive result, checks the comprehensive result, and evaluates and corrects the map comprehensive program scheme; and the user packages, maintains, updates and secondarily develops the built graphical program codes in the map comprehensive graphical programming system.
The graphical programming system conforms to the basic theory, method and engineering characteristics of map synthesis, packages various related functions into symbolized functional nodes, and the functional nodes support predefined and custom modes. The user can select proper packaged functional nodes from the functional node library according to the production requirement, or complete specific task requirements through secondary development. The programming mode of the graphical language mainly comprises arrangement and connection of different functional nodes, and a map comprehensive program can be written through simple and visual operation. The programming mode supports two modes of guided programming and free programming to efficiently meet different degrees of user requirements.
Fig. 3 shows the main functional modules of the graphical programming system, including:
1. A node generator: functional nodes for editing and designing map comprehensive correlation;
2. Functional node library: the function nodes required by map integration are classified and managed, and the functions comprise warehousing, ex-warehouse, searching and the like;
3. Program drawing board: the working areas of the functional nodes are placed, arranged and connected, and a map comprehensive scheme can be built in a graphical interaction mode;
4. code editor: performing secondary development on the functional nodes by modifying scripts;
5. a compiler: the graphical program code is compiled into a map integration program that can be run independently.
As shown in fig. 4, the steps of generating the functional node using the node generator are as follows:
step 1: loading functional scripts required by map synthesis or codes written by a graphical programming system;
step 2: defining the data types of the input and output of the node;
Step 3: editing the relevant information of the node, including: functional description and functional type, etc.;
step 4: designing or loading a symbol pattern capable of representing the function of the node according to the data type and the function of the node;
Step 5: compiling and packaging the codes, the information and the symbols to generate a functional node file;
step 6: loading the newly generated function node into the function node library.
FIG. 5 shows a schematic diagram and classification of functional nodes in a graphical programming system. Each node symbol is specially designed according to the principle of map symbol expression, so that a user can intuitively understand the basic function of the corresponding node through the symbol. The relevant description of the node can also be known through the node information button. After clicking the custom mode button, the user can enter a text code view, and the user can conveniently modify the node function by editing the script.
Based on the theory, method and engineering features of map synthesis, functional nodes are classified into the following types: the system comprises a data acquisition node, a data preprocessing node, a comprehensive decision node, an element comprehensive node, a comprehensive constraint node, a data post-processing node, a comprehensive quality inspection node and a visualization node. The eight functional nodes can basically build a complete map comprehensive system, and for some personalized requirements with strong territory, a specific script can be written through a custom mode for correction and supplement.
The guided programming can be used for generating a standardized comprehensive scheme or generating initial codes for the customized scheme, so that the workload of programming is reduced, and the method is suitable for users with weaker program development foundation or map comprehensive application scenes with comparatively standard. As shown in fig. 6, after entering the guiding mode, the main operation of the user is to sequentially select and set parameters related to the comprehensive tasks; after all relevant parameters are selected, the code is automatically generated by the system. Fig. 7 shows a road integration instance code. In the boot mode, the code may be generated by the following parameters:
1. element type: a road;
2. Raw scale: 1:5000;
3. target scale: 1:10000, 1: 20000,1:40000;
4. input/output data type: a vector;
5. constraint conditions: road network multi-scale similarity relationship function.
The free programming method is more flexible. First, a user selects a desired function node from a function node library according to the comprehensive task demand. Typically, for a complete map integration program, each class of nodes should include at least one. Next, the user can select, arrange and connect the functional nodes on the program drawing board by clicking and dragging, as shown in FIGS. 9 (a) and (b). Finally, a graphical program code similar to that shown in fig. 7 is obtained. Often complex map complexes will contain more functional nodes and present more complex ways of connection. The mode has greater flexibility, can fully meet the requirements of different layers, but also requires the user to have comprehensive knowledge of the map and a certain programming basis.
The two programming methods can be combined, namely, a preliminary solution is generated through guided programming to serve as a program first draft, and then the scheme is optimized and adjusted through free programming; or in the free programming process, code paragraphs are generated through guided programming in local links, so that programming efficiency is improved.
In the scheme setting up process, through configuring and connecting proper visual function nodes, intermediate data and comprehensive results generated by test cases can be displayed on the map comprehensive result display and interaction device in real time. FIG. 8 is a visual illustration of a road network multi-scale composite result, which a user can view at a time for multiple different scales; in addition, the rendering mode of the comprehensive results can be changed, and the visual effect of the comprehensive results on media with different sizes and different materials can be observed. As shown in fig. 9 (d), the integrated results of different scales may be superimposed by touch dragging, so as to more carefully visually inspect the difference between the data of different scales to determine whether the integrated scheme needs to be adjusted or the integrated result needs to be modified.
If the user considers that the overall comprehensive result is not good, the graphical program code needs to be adjusted and modified to ensure that the comprehensive result is correct and reasonable.
If the user considers that the comprehensive result of a small number of objects is wrong, as shown in fig. 9 (c), the user can click on the wrong map object directly, and the system can match a feasible map comprehensive operator according to the selected map element for the user to select so as to correct the comprehensive result. All the correction actions of the user are recorded and fed back to the graphical programming system, and related data post-processing nodes are automatically generated and embedded into the original graphical program codes. This approach does not affect the global scheme and only partial data is corrected.
After the map comprehensive program code is drawn and corrected, as shown in fig. 7, the graphical programming system can compile and generate a map comprehensive program capable of running independently. The program and the map comprehensive result display interaction device can be effectively compatible, and comprehensive result visualization can be carried out in actual production. It can also be packaged into advanced functional nodes by a node generator for completing complex multi-element map synthesis. For example, five users respectively build map automatic comprehensive schemes of water systems, contour lines, interest points, road networks and residential areas of a certain city, and if the schemes are packaged into advanced functional nodes, the map automatic comprehensive schemes can be used for developing urban topographic maps, so that the development efficiency is remarkably improved.
In actual production, the central processing terminal can effectively support the operation of the graphical programming system and the map comprehensive result display interaction device, and can effectively expand the system through communication and data storage. In the data acquisition stage, equipment such as a scanner, a camera and the like can be externally connected to acquire non-digitized geographic information data such as a paper map; in the program drawing stage, devices such as a mouse, a keyboard, a touch pen and the like can be externally connected, so that the operation habits of different users are met; in the data output stage, the map printing equipment can be externally connected, so that the actual production requirement is met.
In general, the invention fully considers the technical characteristics of map synthesis and the knowledge background of map drawing users, utilizes a graphical programming language, automated flow control and a simple interaction method, effectively reduces the threshold of map synthesis program development, and improves the efficiency and quality of multi-scale expression of geographic space data.
The above description is merely an embodiment of the present invention, but the scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope of the present disclosure, and the present disclosure should be covered. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A map-oriented automatic synthesis graphical programming system, comprising:
The system consists of a node generator, a functional node library, a program drawing board, a code editor and a compiler;
The node generator generates all functional nodes required by map synthesis by loading script files or graphical program code encapsulation;
The function node library manages different types of function nodes, and each type of node can complete a specific task in the map synthesis process;
The programming operation comprises the steps of selecting functional nodes from a functional node library, editing and dragging the functional nodes on a program drawing board, and connecting the functional nodes by using data lines to form a graphical map comprehensive program code with a specific function;
The system follows the design rules and the method of map symbols, symbolizes the functional nodes and the data connecting lines corresponding to different types or map elements, and a user can intuitively understand the operation objects and the functions corresponding to each functional node, and the attribute and the state of data through visual cognition;
the compiler can compile the graphical program code into a map comprehensive program capable of independently running;
The system supports both guided programming and free programming.
2. The map-oriented automatic synthesis graphical programming system of claim 1, wherein:
The guiding programming can input map comprehensive task related information according to a system guiding view by steps, comprising: the system automatically generates a graphical map comprehensive program code according to user input parameters and a map comprehensive standardization process.
3. The map-oriented automatic synthesis graphical programming system of claim 1, comprising:
The free programming can automatically select corresponding functional nodes and connection schemes according to the requirements of map comprehensive tasks, draw programs on a program drawing board, flexibly write customized map comprehensive program codes, and the arrangement and connection of the nodes can be realized through mouse pushing or through touch pen and finger dragging based on a touch screen;
The method can be used in combination with guided programming, namely, firstly, a normalized solution is generated through the guided programming to serve as a program draft, and then, the solution is optimized and adjusted through free programming; or in the free programming process, the code paragraphs are generated in the local links through guided programming.
4. The map-oriented automatic synthesis graphical programming system of claim 1, comprising:
the functional node types include: the system comprises a data acquisition node, a data preprocessing node, a comprehensive decision node, an element comprehensive node, a comprehensive constraint node, a data post-processing node, a quality inspection node and a visualization node;
The functional node supports a predefined mode and a custom mode; the predefined mode is the function node pre-packaged according to the existing map comprehensive research result system, and a user can directly select the function node for use in a function node library; in the custom mode, the user modifies the script file of the functional node through the programming language according to the specific comprehensive task requirement to finish the custom secondary development.
5. The map-oriented automatic synthesis graphical programming system of claim 1, wherein the step of generating the functional nodes is as follows:
step 1: loading functional scripts required by map synthesis or codes written by a graphical programming system;
step 2: defining the data types of the input and output of the node;
Step 3: editing the related information of the node, including function description and function type;
step 4: designing or loading a symbol pattern capable of representing the function of the node according to the data type and the function of the node;
Step 5: compiling and packaging the codes, the information and the symbols to generate a functional node file;
step 6: loading the newly generated function node into the function node library.
6. The map comprehensive result real-time display and interaction device is characterized by comprising:
the system can be connected with the graphic programming system for map automatic synthesis and the map automatic synthesis program compiled by the system according to any one of claims 1-5, and intermediate data and synthesis results generated in the running process can be displayed in real time;
Different visualization schemes can be selected through touch interactive operation, including adjustment of a comparison scale, window arrangement, map elements and rendering modes;
The method can select and integrate improper map objects through touch interactive operation, and select proper integrated operators or directly edit the objects so as to correct integrated results;
The correction operation of the comprehensive result can be recorded and fed back to the map-oriented automatic comprehensive graphical programming system according to any one of claims 1-5, and the system can automatically generate corresponding graphical program code fragments through the fed-back operation record and embed original codes.
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