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fillpoly
鎖定
fillpoly是一個函數,用 法: void far fillpoly(int numpoints, int far *polypoints);
- 中文名
- fillpoly
- 名詞類型
- 函數
- 名詞領域
- 編程
- 功 能
- 畫並填充一個多邊形
fillpoly函數介紹
fillpoly是一個函數,用 法: void far fillpoly(int numpoints, int far *polypoints);
用 法: void far fillpoly(int numpoints, int far *polypoints);
int numpoints:多邊形邊數
int far *polypoints:存儲各頂點座標的數組,每兩個一組表示一個頂點的X,Y座標
fillpoly程序範例
#include <graphics.h> #include <stdlib.h> #include <stdio.h> #include <conio.h> int main(void) { /* request auto detection */ int gdriver = DETECT, gmode, errorcode; int i, maxx, maxy; /* our polygon array */ int poly[8]; /* initialize graphics, local variables */ initgraph(&gdriver, &gmode, ""); /* read result of initialization */ errorcode = graphresult(); if (errorcode != grOk) /* an error occurred */ { printf("Graphics error: %s\n", grapherrormsg(errorcode)); printf("Press any key to halt:"); getch(); exit(1); /* terminate with an error code */ } maxx = getmaxx(); maxy = getmaxy(); poly[0] = 20; /* 1st vertext */ poly[1] = maxy / 2; poly[2] = maxx - 20; /* 2nd */ poly[3] = 20; poly[4] = maxx - 50; /* 3rd */ poly[5] = maxy - 20; /* 4th vertex. fillpoly automatically closes the polygon. */ poly[6] = maxx / 2; poly[7] = maxy / 2; /* loop through the fill patterns */ for (i=EMPTY_FILL; i<USER_FILL; i++) { /* set fill pattern */ setfillstyle(i, getmaxcolor()); /* draw a filled polygon */ fillpoly(4, poly); getch(); } /* clean up */ closegraph(); return 0; }
- 詞條統計
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- 瀏覽次數:次
- 編輯次數:11次歷史版本
- 最近更新: JD萤火虫003