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A Multivariate Data Visualization Method for 3D Flow Field Based on Polyhedral Pipe

A three-dimensional flow field, multi-variable technology, applied in image data processing, instruments, calculations, etc., can solve problems such as the difficulty of carrying flow lines and flow tubes, and achieve the effect of improving efficiency and increasing flexibility

Active Publication Date: 2021-03-23
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, if there are more physical quantities to be visualized, both streamlines and tubes are difficult to carry

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  • A Multivariate Data Visualization Method for 3D Flow Field Based on Polyhedral Pipe
  • A Multivariate Data Visualization Method for 3D Flow Field Based on Polyhedral Pipe
  • A Multivariate Data Visualization Method for 3D Flow Field Based on Polyhedral Pipe

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] A three-dimensional flow field multivariate data visualization method based on polyhedral pipelines, comprising the following steps:

[0027] Step 1. Input the multivariate data of the three-dimensional flow field, including vector data describing the velocity of the three-dimensional flow field and multiple scalar attribute data describing the physical quantity of the flow field, and normalize each attribute data respectively.

[0028] The present invention uses a publicly available hurricane field simulation data set as an example. This dataset is the 3D multivariate flow field data generated by the US National Center for Meteorological Research for the simulation of Hurricane Isabel in 2003. The data field size is 500×500×100. In addition to the vector data describing the flow velocity, the data set also includes attribute data of 10 physi...

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Abstract

The present invention relates to a pipeline-based multi-variable data visualization method in a flow field, and belongs to the field of flow field data visualization in scientific computation visualization. The method of the present invention visualizes multi-variable data in the three-dimensional flow field by constructing a colored polyhedral pipe. The basic steps are: calculating a streamline,constructing polyhedral pipes along the streamline, visualizing the vector direction of the flow field through the pipe shape, and then visualizing multiple scalar attribute data on the side of the pipe through color mapping, thereby implementing joint visualization of multiple scalar attribute data and flow field vector data. According to the method disclosed by the present invention, not only the flexibility of multivariate correlation analysis of the three-dimensional flow field is increased, but also the efficiency of visual analysis of multivariate data is improved.

Description

technical field [0001] The invention relates to a three-dimensional flow field multivariate data visualization method, in particular to a pipeline-based flow field multivariate data visualization method, which belongs to the field of flow field data visualization in scientific calculation visualization. Background technique [0002] The three-dimensional flow field is a data field that widely exists in the fields of computational fluid dynamics and meteorological numerical simulation. In order to analyze the three-dimensional flow field data, it is necessary to visualize the three-dimensional flow field, and understand the internal phenomena of the flow field through visualized graphics or images. [0003] Streamline and streamtube are commonly used visualization methods for 3D flow field. With the help of streamlines or flow tubes, the flow direction of the flow field can be effectively understood, and the model structure of the three-dimensional flow field can be explored...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T13/20
CPCG06T13/20G06T2210/24
Inventor 张文耀赵稳王成
Owner BEIJING INSTITUTE OF TECHNOLOGYGY