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采用两种不同的方法绘制曲线 a) 二次B样条曲线 二次B样条曲线段的函数表达式为 (1) 其中 为控制顶点。 说明: ① 对任给定的一组控制顶点 ,每相邻三个控...
采用两种不同的方法绘制曲线 a) 二次B样条曲线 二次B样条曲线段的函数表达式为 (1) 其中 为控制顶点。 说明: ① 对任给定的一组控制顶点 ,每相邻三个控制顶点为一组进行曲线段绘制。即 为一组, 为一组,…, 为一组,所有曲线段连在一起即构成了整个B样条曲线。事实上,前一条曲线段的终点即是下一条曲线段的起点。 ② 在每一段曲线的绘制过程中, 取不同的值便得到曲线上不同的点。例如 时,由公式(1)可得到曲线的起点, 时可计算得到曲线的终点。为处理方便,可进行等距离选择,如10等份, 依次取0,0.1,0.2…,1.0,从而可计算得到10个曲线段上的点,把这10个点依次连接,就可得到该曲线段。 b) 四点插值细分曲线 四点插值细分曲线的表达规则为 其中 为控制顶点, 为细分次数, 为顶点下标。即每细分一次,在任意两点之间插入一顶点。为方便处理起见,可绘制成封闭曲线。 (初始)控制顶点保存在文件中。 给定两个测试文件c1.txt,c2.txt-using two different methods of drawing curve a) quadratic B-spline curves of the second B-spline curves of expression as a function of (1) for the control vertices. Note :-given right of a group of control vertices per three vertices adjacent to a group Marche line drawing. Namely, a group of a group, ... to a group, all of the curves that together constitute the entire B-spline curves. In fact, a curve before the end of the next one that is the starting point of the curve. curve in every section of the drawing process, different from the value curve will be differe
- 2022-03-20 07:54:53下载
- 积分:1
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Character Recognition Using Neural Networks
Steps to use this GUI.
1. Open the...
Character Recognition Using Neural Networks
Steps to use this GUI.
1. Open the GUI figure, run it. (accept the matlab to change its directory to new location where the file is stored)
2. First we need to teach Character to computer. For this type the Character in the textbox space provided and press "TEACH".
3. You can save all the taught data.
4. For retrival, click start.
Note: Paint Brush software of microsoft opens for entering the image. So, we need to save the image after editing.
For best results teach each Character not less than ten times.
- 2022-06-20 20:59:04下载
- 积分:1
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VC6下VTK合成体绘制,在此基础上实现对相机的方位角自动漫游...
VC6下VTK合成体绘制,在此基础上实现对相机的方位角自动漫游-VTK under VC6 synthesis volume rendering, in this based on the azimuth of the camera auto-roaming
- 2023-02-24 23:45:04下载
- 积分:1
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image processing for smoothing, noise reduction, isolated black spots pixel elim...
图象处理之平滑处理,噪声消除、孤立黑点象素消除-image processing for smoothing, noise reduction, isolated black spots pixel elimination
- 2022-09-20 17:55:03下载
- 积分:1
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digital image processing templates, as well as detailed source address, with TC...
数字图像处理的教案,以及详细的处理源程序,用TC设计,可作为数字图像处理的参考资料。-digital image processing templates, as well as detailed source address, with TC design, digital image processing reference.
- 2022-11-19 06:05:05下载
- 积分:1
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一个图型编辑例子
一个图型编辑例子-a map-editing examples
- 2023-04-08 06:50:04下载
- 积分:1
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Fundamentals Of SVG Programming Concepts To Source Code
Fundamentals Of SVG Programming Concepts To Source Code
- 2022-01-21 19:50:35下载
- 积分:1
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很好的例子C与VB希望对大家有用处
很好的例子C与VB希望对大家有用处-Good example of C and VB would like to have the use of U.S.
- 2022-04-30 16:26:21下载
- 积分:1
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VC++下实现OpenGL的三维星空多轨道卫星绕地球源代码:这个程序在C++中调用OpenGL,蓝色的球体代表地球,粉红色的球体代表地球的地球的静止轨道卫星,该
VC++下实现OpenGL的三维星空多轨道卫星绕地球源代码:这个程序在C++中调用OpenGL,蓝色的球体代表地球,粉红色的球体代表地球的地球的静止轨道卫星,该卫星在地球赤道上方和地球一起做同步运动。黄色球体代表其他轨道卫星,它们的轨道各不相同。-VC++ Realize OpenGL under the three-dimensional Star-orbit satellites around the earth more than the source code: the procedure in C++ Call OpenGL, blue sphere on behalf of the Earth, pink sphere of the Earth on behalf of the Earth
- 2022-04-13 01:42:20下载
- 积分:1
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bmp图象处理类,实现了bmp图象的读写操作、图象缩放、旋转、加减、合成、边缘检测、测量周长、面积、小区域删除、去除黑斑、去除白班、二值化、抽取图象内点等。...
bmp图象处理类,实现了bmp图象的读写操作、图象缩放、旋转、加减、合成、边缘检测、测量周长、面积、小区域删除、去除黑斑、去除白班、二值化、抽取图象内点等。-bmp image processing category, achieving bmp image read and write operations, image scaling, rotation, addition and subtraction, synthesis, edge detection, measurement perimeter, area, a small regional delete, remove blotches, remove the day shift, two values, images taken within points.
- 2022-06-12 08:53:11下载
- 积分:1