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Index › Java exceptions in text area with 2D drawin
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 Java exceptions in text area with 2D drawin (Read 3330 times)
 klrohe Java exceptions in text area with 2D drawin Jan 16th, 2008, 10:01pm   When executing the following code://// Drawing a conic section using the polar equation//void setup(){  size(1200, 800);  background(255);    noLoop();}void draw(){  line(width / 2, 0, width / 2, height);  line(0, height / 2, width, height / 2);  translate(width / 2, height / 2);    float p = 150;  float e = 1.0;    for (int i = 0; i < 10; i++)  {    conicSection(p, e, 5000);    //directrix(p, e);    e = e - 0.1;  }}  void conicSection(float p, float e, int numberOfPoints){  float theta = 0;  stroke(100);  smooth();  line(-width / 2, p, width / 2, p);  line(-width / 2, -p, width / 2, -p);  stroke(0);  strokeWeight(2);  for (int i = 0; i < numberOfPoints; i++)  {        float r = p / (1 - e * cos(theta));    float x = r * cos(theta);    float y = r * sin(theta);    point(x, y);    theta = theta + TWO_PI / numberOfPoints;  } // end for} // end conicSectionvoid directrix(float p, float e){  line(-p / e, -height / 2, -p / e, width / 2);}I get the following stack trace in the text area:sun.dc.pr.PRException: endPath: bad pathat sun.dc.pr.Rasterizer.endPath(Unknown Source)at sun.java2d.pipe.DuctusRenderer.createShapeRasterizer(Unknown Source)at sun.java2d.pipe.DuctusShapeRenderer.renderPath(Unknown Source)at sun.java2d.pipe.DuctusShapeRenderer.draw(Unknown Source)at sun.java2d.SunGraphics2D.draw(Unknown Source)at processing.core.PGraphicsJava2D.stroke_shape(PGraphicsJava2D.java:484)at processing.core.PGraphicsJava2D.line(PGraphicsJava2D.java:518)at processing.core.PGraphicsJava2D.point(PGraphicsJava2D.java:510)at processing.core.PApplet.point(PApplet.java:7404)at Temporary_6791_8151.conicSection(Temporary_6791_8151.java:44)at Temporary_6791_8151.draw(Temporary_6791_8151.java:22)at processing.core.PApplet.handleDisplay(PApplet.java:1465)at processing.core.PGraphics.requestDisplay(PGraphics.java:690)at processing.core.PApplet.run(PApplet.java:1562)at java.lang.Thread.run(Unknown Source)
 fry Re: Java exceptions in text area with 2D drawin Reply #1 - May 6th, 2008, 2:38pm   http://processing.org/discourse/yabb_beta/YaBB.cgi?board=SoftwareBugs;action=display;num=1113990788http://dev.processing.org/bugs/show_bug.cgi?id=104
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