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Method for realizing radar screen display by adopting Qt

A radar and user technology, applied in the direction of user interface execution, inter-program communication, program control design, etc., can solve the problems of P-display user interaction process stuck, P-display drawing takes up a lot of resources, etc., to avoid drawing and calculation. , optimize the interactive experience, reduce the effect of CPU resource consumption

Pending Publication Date: 2022-03-22
中国人民解放军96901部队25分队 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a method of using Qt to realize the radar screen display, to solve the problem that the drawing of the P display map takes up too much resources, and there is a lag in the user interaction process of the P display map

Method used

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  • Method for realizing radar screen display by adopting Qt
  • Method for realizing radar screen display by adopting Qt

Examples

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specific Embodiment

[0051] In a specific embodiment, the method for implementing radar screen display by using Qt also includes:

[0052] When the drawing buffer is insufficient, re-apply for a larger drawing buffer.

[0053] Specifically, this application can set up a drawing buffer manager. When it is found that the drawing buffer is applied for buffering, but no response is obtained, or the drawing buffer is not enough, it will send a request to the drawing buffer management to re-plan a larger one. Draw buffers to satisfy buffering needs.

[0054] In a specific embodiment, the method for implementing radar screen display by using Qt also includes:

[0055] After the basic primitive life cycle expires, the ownership of the corresponding buffer segment in the drawing buffer will be cleared. After the preset time, if there is still no new basic primitive to apply for the buffer segment, the buffer segment will be completely delete.

[0056] For P graphics, the basic primitive has a life cycle...

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Abstract

The invention discloses a method for realizing radar screen display by adopting Qt, which comprises the following steps of: storing a point track reported by a radar in a point track data buffer area, submitting a user interaction behavior to a behavior buffer area, reading a period by a primitive calculation thread according to a preset point track data buffer area, reading the point track data buffer area and updating a basic primitive in a graphic tree, when user interaction behavior calculation is triggered, the primitive calculation thread reads user interaction behaviors from the behavior buffer area, behavior calculation is carried out, and basic primitives in the graphic tree are updated. And after the drawing period of the drawing thread is reached, the graphic element calculation thread reads the graphic tree, converts the basic graphic elements in the graphic tree into drawing graphic elements, writes the drawing graphic elements into a drawing buffer area, and draws and displays the drawing graphic elements by the drawing thread. According to the method, the primitive calculation thread is added, the CPU resource occupation is reduced, and the stuck phenomenon of the P display picture can be effectively prevented.

Description

technical field [0001] The application belongs to the technical field of radar screen display, and in particular relates to a method for realizing radar screen display by using Qt. Background technique [0002] The radar display is a terminal device used to automatically display radar information in real time. The traditional radar image is the original radar video output directly by the receiver or the radar video image after signal processing, which is called a display. Radar data processed by computer or radar image displayed by integrated video is called secondary display. There are many types of radar displays, and there are more than ten kinds of common picture formats, which are divided into three types: one-dimensional space display, two-dimensional space display and three-dimensional space display according to the number of displayed coordinates. The two-dimensional space display adopts brightness modulation, and its basic types include P-type display in polar coo...

Claims

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Application Information

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IPC IPC(8): G06F9/451G06F9/54G06T1/20G06T1/60
CPCG06F9/451G06F9/542G06F9/544G06T1/20G06T1/60Y02A90/10
Inventor 王江枫程仕杰王明睿卢钢刘琛史亚锋李广德
Owner 中国人民解放军96901部队25分队
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