c语言实现玫瑰花的方法

c语言实现玫瑰花的方法：首先定义全局变量，并定义结构体；然后设置输出花柄、花柄、绿叶、花萼；最后创建绘图窗口，输出完整花朵。

c语言实现玫瑰花的方法：

#include <stdio.h>#include <windows.h>?#include <math.h>#include <graphics.h>#include <mmsystem.h>#pragma comment(lib,"winmm.lib")//定义全局变量int rosesize = 500;int h = -250;//定义结构体struct DOT {double x;double y;double z;double r;double g;}; bool calc(double a,double b,double c,DOT &d) {double j, n, o, w, z; if (c > 60) { //花柄d.x = sin(a * 7)*(13 + 5 / (0.2 + pow(b * 4, 4))) - sin(b) * 50;d.y = b*rosesize + 50;d.z = 625 + cos(a * 7)*(13 + 5 / (0.2 + pow(b * 4, 4))) + b * 400;d.r = a * 1 - b / 2;d.g = a;return true;}double A = a * 2 - 1;double B = b * 2 - 1;if (A*A + B*B < 1) { //绿叶if (c > 37) {j = (int(c) & 1);n = j ? 6 : 4;o = 0.5 / (a + 0.01) + cos(b * 125) * 3 - a * 300;w = b * h;d.x = o * cos(n) + w * sin(n) + j * 610 - 390;d.y = o * sin(n) - w * cos(n) + 550 - j * 350;d.z = 1180 + cos(B + A) * 99 - j * 300;d.r = 0.4 - a * 0.1 + pow(1 - B * B, -h * 6) * 0.15 - a * b * 0.4 + cos(a + b) / 5 +      pow(cos((o * (a + 1) + (B > 0 ? w : -w)) / 25), 30) * 0.1 * (1 - B * B);d.g = o / 1000 + 0.7 - o * w * 0.000003;return true;} if (c > 32) { //花萼c = c*1.16 - 0.15;o = a * 45 - 20;w = b * b * h;z = o * sin(c) + w * cos(c) + 620;d.x = o * cos(c) - w * sin(c);d.y = 28 + cos(B * 0.5) * 99 - b * b * b * 60 - z / 2 - h;d.z = z;d.r = (b * b * 0.3 + pow((1 - (A * A)), 7)*0.15 + 0.3)*b;d.g = b * 0.7;return true;} //花朵o = A*(2 - b)*(80 - c * 2);w = 99 - cos(A) * 120 - cos(b)*(-h - c * 4.9) + cos(pow(1 - b, 7)) * 50 + c * 2;z = o * sin(c) + w * cos(c) + 700;d.x = o * cos(c) - w * sin(c);d.y = B * 99 - cos(pow(b, 7)) * 50 - c / 3 - z / 1.35 + 450;d.z = z;d.r = (1 - b / 1.2) * 0.9 + a * 0.1;d.g = pow((1 - b), 20) / 4 + 0.05;return true;} return false;} int main(){short ?*zBuffer;int x, y, z, zBufferIndex;DOT dot;initgraph(640,480);//创建绘图窗口 /*添加音乐*/mciSendString("open BadApple.mp3 alias BadApple", NULL, 0, NULL);mciSendString("play BAdApple", NULL, 0, NULL); setbkcolor(YELLOW);cleardevice();zBuffer = new short[rosesize * rosesize];memset(zBuffer, 0, sizeof(short) * rosesize * rosesize);for (int j = 0; j < 2000; j++)// && !_kbhit(){for (int i = 0; i < 10000; i++)if (calc(double(rand()) / RAND_MAX, double(rand()) / RAND_MAX, rand() % 46 / 0.74, dot)){z = int(dot.z + 0.5);x = int(dot.x*rosesize / z - h + 0.5);y = int(dot.y*rosesize / z - h + 0.5);if (y > rosesize) continue;zBufferIndex = y*rosesize + x;if (!zBuffer[zBufferIndex] || zBuffer[zBufferIndex] > z){zBuffer[zBufferIndex] = z;//画点int r = ~int((dot.r*h));?if (r < 0)r = 0;?if (r > 255)r = 255; int g = ~int((dot.g*h));if (g < 0)g = 0;if (g > 255)g = 255; int b = ~int((dot.r*dot.r*-80));if (b < 0)b = 0;if (b > 255)b = 255; putpixel(x + 50, y - 20, RGB(r, g, b));}}Sleep(100);}delete[]zBuffer;getchar();closegraph();return 0;}

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