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A method and system for drawing three-dimensional pipelines based on continuous polylines

A broken line and pipeline technology, applied in the field of three-dimensional space graphics drawing, can solve the problems that are difficult to satisfy users and cannot be closed, so as to achieve good visual effects and improve efficiency

Active Publication Date: 2020-03-17
HARBIN ANTIY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for the creation of polyline pipes, it needs to be formed by splicing and combining multiple straight pipes, so that there is a phenomenon that it cannot be closed at the corners of the polylines.
Due to the above two methods, it is difficult to meet the needs of many users and scenarios

Method used

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  • A method and system for drawing three-dimensional pipelines based on continuous polylines
  • A method and system for drawing three-dimensional pipelines based on continuous polylines
  • A method and system for drawing three-dimensional pipelines based on continuous polylines

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Embodiment Construction

[0063] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the present invention will be further detailed below in conjunction with the accompanying drawings illustrate.

[0064] The present invention provides a drawing method based on continuous polyline-shaped three-dimensional pipeline. Embodiment 1 is as follows: figure 1 shown, including:

[0065] S101: Determine the three-dimensional coordinates of all preset nodes of the pipeline to be drawn;

[0066] S102: Calculate the unit vectors and three-dimensional coordinates of the tangents of the left / right complement points of all preset nodes of the pipeline to be drawn respectively; if the number of preset nodes on the pipeline to be drawn is n, set the pipeline to be drawn at this time Th...

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Abstract

The invention provides a drawing method and a drawing system based on a continuous segmental three-dimensional pipeline. The drawing method comprises steps that three-dimensional coordinates of all of preset nodes of a to-be-drawn pipeline are determined; the three-dimensional coordinates of the left / right additional points of all of the preset nodes of the to-be-drawn pipeline and the unit vectors of the tangent lines, the normal, and the binormals of all of the preset nodes, the left additional points and the right additional points thereof are respectively calculated; the three-dimensional coordinates of the to-be-drawn nodes of the to-be-drawn pipeline are calculated; and the three-dimensional pipeline is drawn based on the three-dimensional coordinates of the to-be-drawn nodes.

Description

technical field [0001] The invention relates to the field of three-dimensional space graphics drawing, in particular to a drawing method and system based on a continuous broken-line three-dimensional pipeline. Background technique [0002] With the development of computer technology, a large number of creation methods of 3D pipelines have emerged according to the actual application scenarios and purposes. However, in the existing methods for creating three-dimensional pipelines, spline curves or Bezier curves are mostly used as the paths of three-dimensional pipelines, so as to create pipelines. As for the creation of the broken line pipe, it needs to be formed by splicing and combining multiple straight pipes, so that there is a phenomenon that it cannot be closed at the corner of the broken line. Due to the above two methods, it is difficult to meet the needs of many users and scenarios. Therefore, this invention will provide a feasible creation method for constructing a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00
CPCG06T17/00
Inventor 谷雨王亮孙晋超杨祖明
Owner HARBIN ANTIY TECH
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