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Volume rendering method and device for meteorological data and computer equipment

A meteorological data and volume rendering technology, applied in the computer field, can solve the problems of affecting the visualization effect and low intuition, and achieve the effect of improving the visualization effect, intuitive display, and improving the visual experience

Pending Publication Date: 2022-03-22
江苏及象生态环境研究院有限公司
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Problems solved by technology

However, the volume rendering rendering by this technology is less intuitive, which affects the visualization effect

Method used

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  • Volume rendering method and device for meteorological data and computer equipment
  • Volume rendering method and device for meteorological data and computer equipment
  • Volume rendering method and device for meteorological data and computer equipment

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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] It should be noted that the core idea of ​​volume rendering technology is to specify a corresponding opacity for each spatial voxel object, and then set a light source to emit light through the entire data field, and consider the opacity of the voxel. The transmission, emission and reflection of light by each spatial voxel. Finally, color synthesis is performed based on the return values ​​of all voxel rays penetrated by each pixel to form the color val...

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Abstract

The invention provides a volume rendering method and device for meteorological data and computer equipment. The method comprises the steps of forming a plurality of mapping texture slices through a texture mapping mode based on the meteorological data and position information; establishing a bounding box surrounding the plurality of mapping texture slices; an initial light source is set, light is projected into the cube from the initial light source, when the crossing distance n of the light in the cube is smaller than the farthest crossing distance m of the light in the cube, equidistant sampling is carried out, and the RGB color value and transparency of each sampling point are obtained; determining a color fusion coefficient k of the current mapping texture slice; according to each RGB color value, the transparency and the color fusion coefficient k, determining a pixel point color mixing value D (r, g, b, a); and storing the pixel point color mixed value in a frame cache region of the GPU, and drawing and displaying the pixel point color mixed value in a Web map frame. Therefore, according to the method, by setting the color fusion coefficient, the meteorological elements can be displayed more visually, the visualization effect is improved, and the visual experience degree of a user is improved.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a volume rendering rendering method for meteorological data, a volume rendering rendering device for meteorological data, and a computer device. Background technique [0002] Meteorological data visualization is an important application field for 3D weather simulation, meteorological system research, and large-scale scene simulation. Thanks to the development of remote sensing detection technology, the current working base station, drone aerial photography technology, satellite telemetry and other technologies can provide massive real-time and accurate data information for the field of meteorological research. However, only through more specific and efficient visualization technology can a single data information be presented in front of people in a diversified way. Data visualization is the foothold of all research results. [0003] In related technologies, a lot of research ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05G06T15/02
CPCG06T17/05G06T15/02Y02A90/10
Inventor 左瑞亭周浩梁志伟王新昊
Owner 江苏及象生态环境研究院有限公司
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