1 python实现及可视化 2 importmathimportmatplotlib.pyplotaspltimportnumpyasnp# 全象限defBresenhamAlgorithm(x0,y0,x1,y1):# 1.process parallel situationifx0==x1andy0==y1:return[x0,y0]elifx0==x1:ify0<y1:y_min=y0y_max=y1els
原文:https://github.com/ssloy/tinyrenderer/wiki/Lesson-1-Bresenham%E2%80%99s-Line-Drawing-Algorithm 关于该绘制直线算法的另外介绍:https://www.cnblogs.com/wlzy/p/8695226.html First attempt 给定一条线的两个点,先用最简单的插值方式进行实现,具体如下: importmatplotlib.pyplotaspltfromPILimportImagei...
draw_line3((20,13), (40,80), (255,0,0), fig,132) draw_line3((80,40), (13,20), (255,0,0), fig,133) Fourth attempt python关于性能分析和时间统计可以参考:https://blog.csdn.net/lhh08hasee/article/details/80032193此处不进行额外的介绍。详细可以参见原文。从理论上理解,以较长距离的维...
//交换整数 a 、b 的值inlinevoidswap_int(int*a,int*b) {*a ^= *b;*b ^= *a;*a ^= *b; }//Bresenham's line algorithmvoiddraw_line(IMAGE *img,intx1,inty1,intx2,inty2, unsignedlongc) {//参数 c 为颜色值intdx = abs(x2 -x1), dy= abs(y2 -y1), yy=0;if(dx <dy) {...
// Bresenham's line algorithm void draw_line(IMAGE *img, int x1, int y1, int x2, int y2, unsigned long c) { // 参数 c 为颜色值 int dx = abs(x2 - x1), dy = abs(y2 - y1), yy = 0; if (dx < dy) { yy = 1; ...
Bresenham’s algorithm( 布兰森汉姆算法)画直线 简介1967年,IBM的J.Bresenham提出了Bresenham算法。 Bresenham算法是在一些约定条件下的最佳逼近。 Bresenham算法通过前一个像素点提供的信息来判定后一个...下一个像素点的坐标只能为(xi + 1,yi)或(xi + 1,yi + 1) 判别标准(Criteria) 当选择下一个要画的点...
Draw line--Bresenham Algorithm Basic1、Bresenham算法绘制三角形边框使用Bresenham算法绘制三角形边框,我们先获得取值范围在-1.0f~1.0f的三个点坐标,分别乘500。将三个点两两配对,通过Bresenham算法获得绘制直线的所有点的坐标,除以500再存在数组中,最后通过glDrawArrays(GL_POINTS, 0, length)绘制直线,三条直线组合成...
// Bresenham's line algorithm voiddraw_line(IMAGE *img, intx1, inty1, intx2, inty2, unsigned longc) { // 参数 c 为颜色值 intdx = abs(x2 - x1), dy = abs(y2 - y1), yy = 0; if(dx < dy) { yy = 1; swap_int(&x1, &y1); ...
Bresenham‘s line algorithm 布雷森汉姆直线算法 1、线性方程 首先我们假设要绘画的直线斜率大于0小于1. 截距式直线方程如下: y=f(x)=mx+by=f(x)=mx+by=f(x)=mx+b 现在我们要从点(x0,y0)(x_0,y_0)(x0,y0)到点(x1,y1)(x_1,y_1)(x1,y1)画一条直线,该直线的斜率有: m...
A simple implementation of Bresenham's line drawing algorithm. See the Wikipedia entry for details on what that is. Note that this is a simple implementation. It is written in Pure Python (without e.g. numpy), so it is relatively slow. I found some beauty in combining the classic algorith...