Data processing method and device

A technology of data processing and processor, applied in the field of data processing methods and devices, capable of solving problems such as image jitter

Pending Publication Date: 2022-04-01
北京中航双兴科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of this application is to provide a data processing method and device to solve the problem of picture shaking in the application of existing virtual earth technology

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Embodiment Construction

[0042] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0043] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for...

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Abstract

The invention discloses a data processing method and device. The method comprises the following steps: acquiring a position coordinate of an object represented by a double-precision floating-point number; converting the position coordinate of the object into a visual space position coordinate represented by a single-precision floating-point number, wherein the visual space is a camera space; constructing a visual space transpose matrix used for performing vertex transformation in a visual space according to a viewpoint position for observing the object, wherein the visual space transpose matrix is a model-viewport-perspective matrix represented by a single-precision floating-point number; and according to the visual space position coordinates and the visual space transpose matrix, performing vertex transformation in the visual space by using a single-precision floating-point number through a vertex shader. According to the method and the device, the problem of picture jitter in the application of the existing virtual earth technology is solved.

Description

technical field [0001] The present application relates to the technical field of three-dimensional terrain visualization, and in particular, to a data processing method and device. Background technique [0002] Virtual globe (Virtual globe) is a three-dimensional software model that can represent the earth or another world, and can provide users with the function of freely moving the environment and changing the viewing angle and position. In the virtual globe technology, when the user zooms in on the scene, rotates the viewport or moves the object, the screen will shake. In addition to visual interference, it is also difficult to locate the exact position of the object. Buildings will bounce back and forth, and terrain blocks will repeatedly overlap or crack between them. For the reason of the above-mentioned jitter phenomenon, the inventor found that it is mainly due to the large position data involved in the WGS84 coordinate system, and the 64-bit double-precision floati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T19/20G06T13/20
Inventor 王峰
Owner 北京中航双兴科技有限公司
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