c:graphics.h:circle
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| + | ===== circle ===== | ||
| + | |||
| + | |||
| + | ====Syntax of circle ==== | ||
| + | <code c> | ||
| + | #include <graphics.h> | ||
| + | void circle(int x, int y, int radius); | ||
| + | </code> | ||
| + | |||
| + | |||
| + | ==== Description of circle ==== | ||
| + | <code c> | ||
| + | circle draws a circle in the current drawing color with its center at | ||
| + | (x,y) and the radius given by radius. | ||
| + | The linestyle parameter does not affect arcs, circles, ellipses, or pie | ||
| + | slices. Only the thickness parameter is used. | ||
| + | If your circles are not perfectly round, adjust the aspect ratio. | ||
| + | </code> | ||
| + | |||
| + | |||
| + | ==== Example of circle ==== | ||
| + | <code c> | ||
| + | /* circle example */ | ||
| + | |||
| + | #include <graphics.h> | ||
| + | #include <stdlib.h> | ||
| + | #include <stdio.h> | ||
| + | #include <conio.h> | ||
| + | |||
| + | int main(void) | ||
| + | { | ||
| + | /* request autodetection */ | ||
| + | int gdriver = DETECT, gmode, errorcode; | ||
| + | int midx, midy, radius = 100; | ||
| + | |||
| + | /* initialize graphics and 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 */ | ||
| + | } | ||
| + | |||
| + | midx = getmaxx() / 2; | ||
| + | midy = getmaxy() / 2; | ||
| + | setcolor(getmaxcolor()); | ||
| + | |||
| + | /* draw the circle */ | ||
| + | circle(midx, midy, radius); | ||
| + | /* clean up */ | ||
| + | getch(); | ||
| + | closegraph(); | ||
| + | return 0; | ||
| + | } | ||
| + | </code> | ||
| + | |||
| + | |||
| + | ==== See also ==== | ||
| + | [[arc]] | ||
| + | [[ellipse]] | ||
| + | [[fillellipse]] | ||
| + | [[getaspectratio]] | ||
| + | [[sector]] | ||
| + | [[setaspectratio]] | ||
| + | |||
| + | |||
| + | ===== output of circle example ===== | ||
| + | |||
| + | no output of example at the moment | ||
| + | do not hesitate and add it... | ||
| + | |||
| + | |||
on the occasion of the current invasion of Russia in Ukraine
c/graphics.h/circle.txt · Last modified: 2024/02/16 01:05 (external edit)
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