CN113253965B - Mass data multi-view-port visual interaction method, system, equipment and storage medium - Google Patents
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Abstract
The invention discloses a method, a system, equipment and a storage medium for multi-view-port visual interaction of mass data, wherein the method comprises the following steps: s1: synchronizing the renderers according to the operation of the mouse; s2: creating and displaying a viewport according to visual analysis requirements; s3: laying out a viewport; s4: switching the view port according to the view port active state. The invention can fully utilize the current super computer system structure to realize the parallel drawing of the multi-view-port image server side and the synchronous drawing of the client side and the server side, so that the real-time interaction efficiency can be kept under the condition of multi-view-port mass data visualization.
Description
Technical Field
The invention belongs to the technical field of scientific visualization, and particularly relates to a mass data multi-view-port visualization interaction method, system, equipment and storage medium.
Background
With the continuous development of the huge computer technology, the calculation precision of scientific numerical simulation is continuously improved, the grid scale is continuously increased, the generated scientific data volume reaches PB or even EB level, and how to effectively analyze and understand the large-scale scientific data becomes an important problem for scientists at present. Scientific calculation visualization is one of effective methods for helping scientists analyze and understand large-scale scientific data, and refers to a theory, a method and a technology which apply computer graphics and image processing technology to convert output data of scientific calculation and data generated by observation and test in other fields into graphics and images, and finally display the graphics and the images on a screen for interactive processing. For the visualization processing of the large-scale scientific calculation data, the application requirements of the large-scale scientific data visualization cannot be met only by depending on the expansion of the storage space of a single computer and the improvement of the calculation speed. Therefore, parallel visualization processing by using a high-performance parallel computer system has become an effective means for large-scale scientific data analysis at present.
"viewport" refers to a region that displays a view in a different form. When a system with large scenes, various target models and various attention objects is displayed, the requirement of a user can not be met by roaming observation of a panorama and a single target model in a single view port mode. Multiple view ports can display different parts of the graphics, and the complete graphics can also be displayed in one view port. The multi-view port function is to construct a plurality of view areas in a display program frame, so that different models or different parts of the models can be displayed in different view areas at the same time, and the purpose of simultaneously observing a plurality of models is realized. In large or complex graphics, different views are displayed by using multiple view ports, and the graphics can be drawn and edited by zooming at any time, so that the time for zooming or translating the graphics existing in a single view port can be shortened.
The limitations of people and display devices result in the inability to display all data information at once. A static image can only display a part of the features of the data, which requires a certain interactive means to support the selection of different areas, displayed information, display modes and the like. Moreover, as a result of general visualization, important depth information is lost through a two-dimensional picture displayed on a screen, which makes a user to observe a three-dimensional data structure less intuitive and easily causes a cognitive error. This requires interactive means to support the user in viewing the data from any angle, creating an accurate sense, and further analyzing the data. Therefore, interaction is also widely considered to be an essential component in the scientific visualization process. In the process of mass data exploration type interaction, a large number of people are required to participate. How to provide smooth interactive feedback for users through a certain optimization technology is one of the key problems of high-efficiency visualization of mass data.
In the existing scheme, aiming at the application requirement of large-scale complex scene drawing, patent CN 101986710 a proposes a parallel drawing system based on a sort-last architecture, which is composed of a PC cluster system and includes a fusion node and a plurality of drawing nodes, the nodes are connected through a local area network, the drawing nodes are responsible for drawing respective scenes, the fusion node is responsible for summarizing the scenes formed by the drawing nodes and corresponding pixel depth images, and finally fusing to form final image output according to image depth information. Patent CN 101789132 a provides a method for displaying a single-view multiple OpenGL viewports, which includes setting multiple OpenGL viewports, determining the positions and sizes of the multiple OpenGL viewports in the view, using an independent orthographic projection matrix for each OpenGL viewport, transforming model coordinates, and then displaying the model coordinates in the corresponding viewport, and finally, when a mouse is operated, detecting the current position of the mouse, determining the viewport and the operation type where an operation response occurs, and making a response.
The technical scheme is closer to the technology of the invention, and the patent CN 101986710A solves the problem of drawing mass data visualization, but does not solve the problem of interaction of mass flow field visualization. The patent CN 101789132 a solves the problem of multi-view port display, and can effectively solve the problem that only one view port detail can be viewed at the same time, but does not solve the problem of interaction response delay caused by large drawing overhead due to too many view ports, and the method is not applicable to high-performance computer architecture.
In summary, none of the display methods of the prior art can achieve the functions of displaying multiple components and performing smooth interaction on a high-performance computer system.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method, a system, equipment and a storage medium for multi-view-port visual interaction of mass data.
The purpose of the invention is realized by the following technical scheme:
the massive data multi-view port visualization interaction method comprises the following steps:
s1: synchronizing the renderers according to the operation of the mouse;
s2: creating and displaying a viewport according to visual analysis requirements;
s3: laying out a viewport;
s4: switching the view port according to the view port active state.
Further, step S1 includes the following sub-steps:
s11: when a client side has mouse operation, judging the type of the mouse operation, and creating a transformation matrix of the operation at the client side;
s12: the transformation matrix is sent to a server main process, the server main process broadcasts the matrix to all computing processes, each computing process redraws an image according to the matrix, and a final drawing result is synthesized into a new graphic image on the main process;
s13: and the server main process sends the drawing result to the client.
Further, step S2 includes the following sub-steps:
s21: creating a window renderer at the same time at a client and a server host process;
s22: creating one or more viewports according to visual analytics requirements;
s23: the server starts to draw in parallel according to the active viewport information;
s24: and the server main process draws the image through the synchronous window renderer and compresses and transmits a drawing result to the client for display.
Further, step S22 specifically includes the following sub-steps:
s221: creating one or more renderers at the client while creating the same number of synchronized renderers as the renderers, when the client receives a command to create one or more viewports;
s222: determining that the newly-built view port is active, and sending remote process call by the client through the socket to send current interactive view port information to the server;
s223: and after receiving the new viewport message, the server side simultaneously creates the same number of renderers and synchronous renderers as the renderers and synchronous renderers created by the client side.
Further, step S4 includes the following sub-steps:
s41: the client detects an active viewport change;
s42: determining a current active viewport and an inactive viewport, and updating an active renderer by a client;
s43: if the view port is an inactive view port, keeping the current view port image, disconnecting the connection with the server, closing the synchronous renderer, and keeping the current image display state; and if the viewport is the active viewport, deleting the image of the current viewport, connecting the server, opening the synchronous renderer, and performing instant parallel rendering and synchronous rendering according to the interactive information of the active viewport.
On the other hand, the invention also provides a mass data multi-view port visualization interaction system, which comprises a client and a server, wherein the client and the server are used for realizing the mass data multi-view port visualization interaction;
the client comprises a matrix creating unit, a client view port unit, a client rendering unit and a view port activity detection unit; wherein the content of the first and second substances,
the matrix creating unit is used for creating a transformation matrix of the operation according to the mouse operation type;
a client viewport unit for managing a viewport of a client;
the client rendering unit is used for managing a client rendering window and a renderer;
a viewport activity detection unit for detecting a client activity viewport change;
the server comprises a broadcasting unit, a server rendering unit and a server viewport unit; wherein the content of the first and second substances,
the broadcasting unit is used for broadcasting the transformation matrix received from the client to all the computing processes;
a server rendering unit for managing a server rendering window and a renderer;
and the server view port unit is used for managing the view ports of the server.
In another aspect, the present invention further provides a computer device, where the computer device includes a processor and a memory, where the memory stores a computer program, and the computer program is loaded and executed by the processor to implement any one of the above-mentioned mass data multi-view-port visualization interaction methods.
In another aspect, the present invention further provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is loaded and executed by a processor to implement any of the above-mentioned mass data multi-view-port visualization interaction methods.
The invention has the beneficial effects that:
the method comprises the steps of synchronizing the renderer according to the operation of a mouse to achieve client interaction, creating a viewport according to user requirements, performing viewport layout, and finally switching the viewport according to active viewport changes, so that parallel drawing of a server side of the multi-viewport image and synchronous drawing of the client side and the server side are achieved, and real-time interaction efficiency of mass data visualization can be kept under the condition of the multi-viewport.
Drawings
FIG. 1 is a flow chart of a multi-view-port visualization interaction method for mass data provided by the present invention;
FIG. 2 is a schematic structural diagram of a supercomputing system for executing the mass data multi-view-port visualization interaction method provided by embodiment 1 of the present invention;
fig. 3 is a flow chart of a multi-view port creation process of a multi-view port visualization interaction method for mass data according to embodiment 1 of the present invention;
fig. 4 is a schematic diagram of a multiple-view-port rapid layout single view port of a massive data multiple-view-port visualization interaction method provided in embodiment 1 of the present invention;
fig. 5 is a schematic diagram of a multi-view port quick layout 4 equal-view port by using a massive data multi-view port visualization interaction method provided in embodiment 1 of the present invention;
fig. 6 is a diagram illustrating nesting of multiple view ports in a fast layout of multiple view ports according to a method for visualizing interaction of multiple view ports on mass data in embodiment 1 of the present invention;
fig. 7 is a schematic diagram of a multi-view port quick layout left-right halving view port of a multi-view port visualization interaction method for massive data according to embodiment 1 of the present invention;
fig. 8 is a schematic view of a multi-view port quick layout bisection view port in a multi-view port visualization interaction method for mass data according to embodiment 1 of the present invention;
fig. 9 is a schematic diagram of an active viewport switching method of a mass data multi-viewport visualization interaction method provided in embodiment 1 of the present invention;
fig. 10 is a diagram of a massive data multi-view port visualization interactive system architecture provided in embodiment 2 of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that, in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments.
Thus, the following detailed description of the embodiments of the present invention 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, it is a flow chart of a mass data multi-view port visualization interaction method provided in this embodiment, and the method specifically includes the following steps:
step 1, the synchronous renderer realizes the client interaction function. The presently implemented actions include, for example, translation, rotation, magnification, and the like.
The synchronized renderer specifically comprises the following sub-steps:
step 1.1, when the client side has mouse operation, judging the operation type according to the action of the mouse, for example, the mouse wheel rolls to represent the enlargement or reduction of an object, and the like, and establishing a transformation matrix of the operation at the client side.
And step 1.2, the transformation matrix is sent to a server host process, the server host process broadcasts the matrix to all computing processes, and each computing process redraws an image according to the matrix and synthesizes the final drawing result into a new graphic image on the host process.
And step 1.3, the server main process sends the drawing result to the client, and the latest state after interaction is obtained.
Step 2, creating a multi-view port:
the multi-view port creation process provided by the present embodiment is shown in fig. 3. The method is operated in a client/server architecture, so that the problem that the drawing result of the server is transmitted to the client and the like needs to be considered.
The multi-view port creation specifically comprises the following steps:
step 2.1 creates a window renderer at the same time at the client and server host processes.
The window rendering user places a viewport, and only one viewport exists in the default condition, wherein the size of the viewport is the size of a window of a client.
Step 2.2 the user creates one or more viewports according to visual analysis requirements.
Each viewport corresponds to a renderer and a synchronized renderer. When a client receives a command to create one or more viewports, one or more renderers and one or more synchronized renderers are created at the client, the renderers being used to display results and the synchronized renderers being used for interactive control of the viewport. And determining that the newly-built view port is active, sending remote process call by the client through the socket, sending current interactive view port information to the server, and simultaneously creating one or more renderers and one or more synchronous renderers after the server receives the newly-built view port message, wherein the renderers on the server and the client correspond to the synchronous renderers one to one.
Step 2.3 the server starts parallel rendering according to the active viewport information.
And 2.4, the server main process draws the image through the synchronous window renderer, and compresses and transmits the drawing result to the client for display.
Step 3, multi-view port rapid layout setting:
the multi-view port fast layout provided by the present embodiment is shown in fig. 4-8. When a user needs to observe the overall effect of a view, and a single viewport cannot meet the requirement, a viewport function can be used to split a drawing area into one or more adjacent rectangular views. The fast layout currently provided includes: the view port is a single view port, a large view port is nested, the view port is divided equally up and down (left and right), and the view port is divided equally by 4, fig. 4 is a schematic view port with single view port, fig. 5 is a schematic view port with 4 equal divisions, fig. 6 is a schematic view port nested diagram with large view port, fig. 7 is a schematic view port divided equally left and right, and fig. 8 is a schematic view port divided equally up and down.
The multi-view port fast layout specifically comprises the following sub-steps:
step 3.1 performs layout setting according to the priority of the view ports in the layout.
And if the layout quantity is not met, a new viewport is created finally.
And 3.2, executing display operation on the view ports participating in the layout, and executing hiding operation on the view ports not participating in the layout.
And 3.3, connecting the view ports participating in the layout with the synchronous renderer, and executing one drawing operation.
Step 4, switching view ports:
in the user interaction process, some key parts are checked according to analysis requirements, the view ports are switched at the moment, and in order to provide view port switching and interaction efficiency, the method realizes the data dimension reduction display interaction method based on the image.
Fig. 9 is a block diagram of a viewport switching flow provided in this embodiment, where the viewport switching specifically includes the following sub-steps:
step 4.1 the client detects an active viewport change.
Step 4.2 determines the current active viewport and the inactive viewport, and the client updates the active renderer.
Step 4.4 traverses all view ports. For the inactive view port, keeping the image of the current view port, disconnecting the connection with the server, closing the synchronous renderer, and keeping the display state of the current image; and for the active view port, deleting the image of the current view port, connecting a server, opening a synchronous renderer, and performing instant parallel rendering and synchronous rendering according to the interactive information of the active view port.
As shown in fig. 2, the schematic diagram is a schematic view of a supercomputing system structure for executing the massive data multi-view-port visualization interaction method provided in embodiment 1 of the present invention, where a user terminal is used for a user to query system conditions, submit calculation jobs, view calculation results, and the like; the service processing system comprises a management node and a service node, wherein the management node resides in system services such as resource management, job loading management, user management and the like, and the service node provides login service, programming and compiling service and provides a user running environment conforming to the standard; the computing processing system consists of computing nodes, and all submitted jobs are run on the computing nodes; the resource management system can flexibly implement job scheduling according to the application requirements of users and carry out partition management; the global storage subsystem mainly undertakes storage, management and parallel I/O service of data in the computer system. In the using process, a client is generally adopted to start a computing task of the computing processing system in a mode of sending jobs remotely at a user terminal, and meanwhile, the client is used at the user terminal to receive and check a computing result.
According to the massive data multi-view-port visual interaction method, the interaction of the client side is achieved by synchronizing the renderer according to the operation of the mouse, then the view ports are created according to the requirements of a user and are laid out, finally, the view ports are switched according to the change of the active view ports, the parallel drawing of the server side of the image with the multiple view ports and the synchronous drawing of the client side and the server side are achieved, and the real-time interaction efficiency of the massive data visualization can be kept under the condition of the multiple view ports.
Example 2
Fig. 10 is a system architecture diagram of a massive data multi-view port visualization interactive system provided by the embodiment, and a user uses a client program running on a PC or a workstation to connect to a server program through an IP address and a port. And the user carries out interactive operation on the drawing result through the client, the operation is packaged into commands and parameters and transmitted to the server for execution, and the execution result is returned to the interface of the client for displaying in a drawn image. And the server image is parallelly drawn by adopting a pixel synthesis mode. In order to realize the function of multiple view ports, a drawing renderer is newly built for each view port on a client side and a server side, and a synchronous renderer is built between the previous client side and the server side renderer, so that the server can quickly respond to the interactive operation of the client side, and the refreshed drawing result is transmitted to the client side.
The client comprises a matrix creating unit, a client viewport unit, a client rendering unit and a viewport activity detection unit. The matrix creating unit is used for creating a transformation matrix of the operation according to the mouse operation type. And the client view port unit is used for managing the view port of the client. And the client rendering unit is used for managing a client rendering window and a renderer. And the viewport activity detection unit is used for detecting the change of the client activity viewport.
The server comprises a broadcasting unit, a server rendering unit and a server viewport unit. The broadcasting unit is used for broadcasting the transformation matrix received from the client to all the computing processes. And the server rendering unit is used for managing the server rendering window and the renderer. And the server view port unit is used for managing the view ports of the server.
The massive data multi-view port visualization interaction system provided by the embodiment comprises a server and a client, a drawing renderer is newly built for each view port on the client and the server, a synchronous renderer is built between the previous client and the server-side renderer, the multi-view port visualization function is realized, the synchronous renderer is built between the server and the client, the server can be enabled to quickly respond to the interaction operation of the client, and the refreshed drawing result can be transmitted to the client.
Example 3
The preferred embodiment provides a computer device, which can implement the steps in any embodiment of the massive data multi-view port visualization interaction method provided in the embodiment of the present application, and therefore, the beneficial effects of the massive data multi-view port visualization interaction method provided in the embodiment of the present application can be achieved, which are detailed in the foregoing embodiments and will not be described herein again.
Example 4
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor. To this end, an embodiment of the present invention provides a storage medium, where a plurality of instructions are stored, where the instructions can be loaded by a processor to perform the steps of any embodiment of the mass data multi-view port visualization interaction method provided in the embodiment of the present invention.
Wherein the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
Since the instructions stored in the storage medium may execute the steps in any of the embodiments of the massive data multi-view port visualization interaction method provided in the embodiments of the present invention, beneficial effects that can be achieved by any of the massive data multi-view port visualization interaction methods provided in the embodiments of the present invention may be achieved, which are detailed in the foregoing embodiments and will not be described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The mass data multi-view port visualization interaction method is characterized by comprising the following steps:
s1: synchronizing the renderers according to the operation of the mouse;
s2: creating and displaying a viewport according to visual analysis requirements;
s3: laying out a viewport;
s4: switching the view port according to the active state of the view port;
step S4 includes the following substeps:
s41: the client detects an active viewport change;
s42: determining a current active viewport and an inactive viewport, and updating an active renderer by a client;
s43: if the view port is an inactive view port, keeping the current view port image, disconnecting the connection with the server, closing the synchronous renderer, and keeping the current image display state; and if the viewport is the active viewport, deleting the image of the current viewport, connecting the server, opening the synchronous renderer, and performing instant parallel rendering and synchronous rendering according to the interactive information of the active viewport.
2. The mass data multi-view port visualization interaction method as claimed in claim 1, wherein the step S1 comprises the following sub-steps:
s11: when a client side has mouse operation, judging the type of the mouse operation, and creating a transformation matrix of the operation at the client side;
s12: the transformation matrix is sent to a server main process, the server main process broadcasts the matrix to all computing processes, each computing process redraws an image according to the matrix, and a final drawing result is synthesized into a new graphic image on the main process;
s13: and the server main process sends the drawing result to the client.
3. The mass data multi-view port visualization interaction method as claimed in claim 1, wherein the step S2 comprises the following sub-steps:
s21: creating a window renderer at the same time at a client and a server host process;
s22: creating one or more viewports according to visual analytics requirements;
s23: the server starts to draw in parallel according to the active viewport information;
s24: and the server main process draws the image through the synchronous window renderer and compresses and transmits a drawing result to the client for display.
4. The mass data multi-view port visualization interaction method as claimed in claim 3, wherein the step S22 specifically includes the following sub-steps:
s221: creating one or more renderers at the client while creating the same number of synchronized renderers as the renderers, when the client receives a command to create one or more viewports;
s222: determining that the newly-built view port is active, and sending remote process call by the client through the socket to send current interactive view port information to the server;
s223: and after receiving the new viewport message, the server side simultaneously creates the same number of renderers and synchronous renderers as the renderers and synchronous renderers created by the client side.
5. The massive data multi-view port visualization interaction system is characterized by comprising a client and a server, wherein the client and the server are used for realizing massive data multi-view port visualization interaction;
the client comprises a matrix creating unit, a client view port unit, a client rendering unit and a view port activity detection unit; wherein the content of the first and second substances,
the matrix creating unit is used for creating a transformation matrix of the operation according to the mouse operation type;
a client viewport unit for managing a viewport of a client;
the client rendering unit is used for managing a client rendering window and a renderer;
a viewport activity detection unit for detecting a client activity viewport change;
the server comprises a broadcasting unit, a server rendering unit and a server viewport unit; wherein the content of the first and second substances,
the broadcasting unit is used for broadcasting the transformation matrix received from the client to all the computing processes;
a server rendering unit for managing a server rendering window and a renderer;
and the server view port unit is used for managing the view ports of the server.
6. A computer device, characterized in that the computer device comprises a processor and a memory, wherein the memory stores a computer program, the computer program is loaded and executed by the processor to implement the mass data multi-view port visualization interaction method according to any one of claims 1 to 4.
7. A computer-readable storage medium, wherein a computer program is stored in the storage medium, and the computer program is loaded and executed by a processor to implement the mass data multi-view port visualization interaction method according to any one of claims 1 to 4.
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| CN111932663A (en) * | 2020-08-11 | 2020-11-13 | 中国空气动力研究与发展中心计算空气动力研究所 | Parallel drawing method based on multi-level asymmetric communication management |
| CN112381935A (en) * | 2020-09-29 | 2021-02-19 | 西安应用光学研究所 | Synthetic vision generation and multi-element fusion device |
| CN113127784A (en) * | 2021-04-29 | 2021-07-16 | 平安国际智慧城市科技股份有限公司 | Large-screen data visual display method and device, storage medium and computer equipment |
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