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A line display method and line display system

A display method and line technology, applied in the direction of digital output to display device, extraction from basic elements, etc., can solve problems such as jaggedness, and achieve the effect of reducing data volume, improving efficiency, and avoiding jaggedness.

Active Publication Date: 2021-11-02
城市生活(北京)信息有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a line display method and a line display system to solve the problem of sawtooth phenomenon in the line display process and improve the user's subjective feeling and user experience

Method used

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  • A line display method and line display system
  • A line display method and line display system
  • A line display method and line display system

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Embodiment Construction

[0071] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0072] The embodiment of this application provides a line display method, such as figure 1 As shown, applied to an electronic map, the line display method includes:

[0073] S101: Obtain a line set, where the line set includes at least one line;

[0074] The line collection usually includes a group of lines to be processed, such as lines representing some cross-connected roads in the city, etc., and the lines placed in the line collection need to ensure that ...

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Abstract

The present application discloses a line display method and a line display system, wherein, in the line display method, before sending the lines to the graphics card for drawing, the line splicing is first performed on a collection containing at least one line, and then the spliced ​​obtained to-be-displayed Expand the polyline to obtain the graphics to be displayed, and finally divide the graphics to be displayed into triangular patches and send them to the graphics card for drawing. It avoids the jagged phenomenon that may be caused by the graphics card directly drawing the lines, and improves the effect of the line display; in addition, the process of splicing at least one line in the line set can also reduce the graphics card's processing time during the line drawing process. The amount of data can improve the efficiency of the graphics card when drawing lines.

Description

technical field [0001] The present application relates to the technical field of electronic map display, and more specifically, to a line display method and a line display system. Background technique [0002] Navigation refers to the method of guiding a certain target from one point of a specified route to another point, and is widely used in military, transportation and other fields. Electronic map is an important carrier for carrying navigation routes in navigation technology. Therefore, the drawing quality of electronic map directly affects the user experience of navigation users. [0003] In the process of drawing an electronic map, it is inevitable to involve the drawing of lines representing different roads. In the prior art, when drawing a line, usually the line to be drawn is given the width to be displayed and then directly draws the line by calling OpenGL in the graphics card. The line drawn in this way is when the display width of the line is large Severe sawto...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/20G06F3/14
CPCG06F3/14G06T11/20
Inventor 马延朋
Owner 城市生活(北京)信息有限公司