平面各向同性曲线形成的广义方法

A. Nesvidomina
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引用次数: 0

摘要

模拟表面温度分布的过程,将图像应用于具有最小畸变的弯曲区域,需要在平面和表面上形成等距网格。构造平面等距网络的常用方法之一是利用复变函数和平面各向同性曲线,然后将实虚部分离。根据各种初始几何条件对等距网络进行交互搜索和分析的计算机模型的发展,为具有改变其形状和位置可能性的等距网络的形成提供了一种通用的方法。提出了用各向同性向量来构造平坦的各向同性曲线,保证了按以下初始条件进行解析计算的单一序列:1)选择实辐角的任意函数;2)平面曲线的给定参数方程;3)平面曲线的给定极坐标方程。由于平面各向同性曲线参数方程的推导及相应的等距网格的解析计算比较费力,故在Maple符号代数环境下进行。为此,开发了相应的软件,该软件可以交互式地选择平面导曲线的实参函数、参数方程或极坐标方程。所有后续阶段的分析转换,以形成各向同性曲线和相应的等距网格是自动进行的。建立了具有不同初始条件的平面各向同性曲线的生成和分析的交互模型,并通过实际参数的特定函数的平面等距网格、平面曲线的参数形式和极坐标形式的实例验证了该模型的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
GENERALIZED METHOD FOR FORMING PLANE ISOTROPIC CURVES
The process of modeling the temperature distribution on surfaces, applying an image to curved areas with minimal distortion requires the formation of isometric grids on the plane and on the surface. One of the common ways to form planar isometric networks is to use the functions of a complex variable and planar isotropic curves, followed by separation of the real and imaginary parts. The development of computer models for the interactive search and analysis of isometric networks according to various initial geometric conditions provides a generalized method for their formation with the possibility of varying their shape and position. It is proposed to use an isotropic vector for the formation of flat isotropic curves, which ensured a single sequence of analytical calculations according to the following initial conditions: 1) selection of an arbitrary function of a real argument; 2) a given parametric equation of a plane curve; 3) a given polar equation of a plane curve. Since the analytical calculations of the derivation of the parametric equation of a plane isotropic curve and the corresponding isometric grid are rather laborious, their execution is carried out in the environment of the Maple symbolic algebra. To this end, the corresponding software has been created, which interactively allows you to select the function of a real argument, a parametric or polar equation of a plane guide curve. All subsequent stages of analytical transformations to form an isotropic curve and the corresponding isometric grid are carried out automatically. An interactive model for the formation and analysis of plane isotropic curves with various initial conditions has been created, which has shown its effectiveness, which is confirmed by the given examples of plane isometric grids for specific functions of the real parameter, plane curves in the parametric and polar form of their job.
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