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Index › Programming Questions & Help › Syntax Questions › rotating in its own center

sebastiano Junior Member Offline Posts: 75

rotating in its own center Jun 23rd, 2009, 11:20am   hello, i need to rotata a line in its own center without using the rotate methods. Im trying the following code, but i just can rotate the line around one of the points of the line. Is there any trick for making the line to rotate in its own center? many thanks seb. Code: float x; float y; float aumenta; void setup() { size(500, 500); background(250, 250, 250); } void draw() { background(250, 250, 250); aumenta = aumenta + 0.01; x = 60 * cos(aumenta) + 177; y = 60 * sin(aumenta) + 177; line(x, y, 177, 177 ); }

Guru YaBB Newbies Offline Posts: 37	Re: rotating in its own center Reply #1 - Jun 23rd, 2009, 11:37am   if you want 177,177 to be the center of the line then try to modify your draw methode like this void draw() {    background(250, 250, 250);  aumenta = aumenta + 0.01;  x = 60 * cos(aumenta);  y = 60 * sin(aumenta);  line( 177 +x, 177+ y, 177-x, 177-y );  }