企业官网建设流程全解析

这个程序使用PCL制作了一个2D动画。

主要绘制了黑白交替的同心圆和一个红色的正方体。

圆的半径会慢慢变小，实现黑白交替。

红色的正方体会从左边移动到右边。

视频演示：https://www.bilibili.com/video/BV1vpTp63EqK/

代码：

#include <iostream> #include <map> #include <vector> #include <pcl/visualization/pcl_painter2D.h> int main () { pcl::visualization::PCLPainter2D *painter = new pcl::visualization::PCLPainter2D(); int winw = 800, winh = 600; painter->setWindowSize (winw, winh); int xpos = 0; int r = winw; int R = 50; int inc = 5; int noc = winw/R; while (1) { //draw noc no of circles for (int i = 0; i < noc; i++) { if (i % 2) painter->setBrushColor (0, 0, 0, 200); else painter->setBrushColor (255, 255, 255, 200); int rad = r - i*R; if (rad < 0) { rad = winw + rad;} painter->addCircle (winw/2, winh/2, rad); } r -= inc; if (r < winw-R) r = winw + R; painter->setBrushColor (255,0,0,100); painter->addRect ((xpos += inc) % winw, 100, 100, 100); //display painter->spinOnce (); painter->clearFigures (); } return 0; }

参考：PCLPainter2D — Point Cloud Library 0.0 documentation