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A method and device for drawing contour lines

A technology of contour and gray value, applied in the computer field, can solve problems such as inability to draw

Active Publication Date: 2020-11-06
ADVANCED NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a method and device for drawing contours, which are used to solve the problems in the prior art of drawing contours based on the contour extraction method, which require the values ​​of the quantitative indicators used to draw contours. The coordinates are evenly distributed, otherwise the problem of not being able to draw

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  • A method and device for drawing contour lines
  • A method and device for drawing contour lines
  • A method and device for drawing contour lines

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Embodiment Construction

[0026] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0027] As mentioned above, when drawing contours based on the contour extraction method in the prior art, data with uniform coordinates is required, otherwise it cannot be drawn. In order to facilitate understanding of this problem, an example is used to illustrate, as Figure 1a , Figure 1b , Figure 1c shown. Assuming that the quantity index is t...

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Abstract

The invention discloses an isoline drafting method and device and aims to solve a problem that isoline drafting based on an isoline extraction method can not be realized if coordinates of values of quantity indexes for isoline drafting are not distributed uniformly in the prior art. The method comprises steps that multiple coordinate points and a value of a quantity index corresponding to each coordinate point are determined; a gray value gradual change area containing the coordinate points is drafted, the gray value gradual change area takes the coordinate points as a center to realize gradual change towards the surrounding gray values, and the gray values are acquired through converting values of the quantity indexes corresponding to the coordinate points; according to the gray value of each point in the gray value gradual change area, a quantity index isoline is drafted.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a method and device for drawing contour lines. Background technique [0002] Isovalue line is a smooth curve formed by connecting coordinate points with the same quantitative index value of the mapping object. It is often used in scientific research and other fields. Common isovalue lines include isothermal lines, isobaric lines, contour lines, and equipotential lines. line etc. Isolines are traditionally drawn by hand, but with the rapid development of computer technology, it is now possible to use a computer to draw isolines. [0003] In the prior art, in the case of using a computer, the contour is usually drawn based on the contour extraction method. Taking the drawing of the isotherm as an example, the quantity index is temperature. Multiple temperature values ​​and their coordinate data can be imported into the computer to distribute the coordinate points of e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/20
CPCG06T11/203
Inventor 董晓庆
Owner ADVANCED NEW TECH CO LTD