Changeset 25294

Timestamp:

Sep 8, 2009, 4:25:23 PM (17 years ago)

Author:

eugene

Message:

fix angle of ellipse

File:

• branches/eam_branches/20090715/Ohana/src/kapa2/src/PaintOverlay.c (modified) (2 diffs)

branches/eam_branches/20090715/Ohana/src/kapa2/src/PaintOverlay.c

@@ -9 +9 @@
  
   XSetForeground (graphic[0].display, graphic[0].gc, image[0].overlay[N].color);
-  XSetLineAttributes (graphic->display, graphic->gc, 2, LineSolid, CapNotLast, JoinMiter);
+  XSetLineAttributes (graphic->display, graphic->gc, 1, LineSolid, CapNotLast, JoinMiter);
   
   expand = 1.0;
@@ -72 +72 @@
           double sn = sin(angle);
           x0 = X + pX*dx*cs;
-          y0 = Y - pY*dx*sn;
+          y0 = Y + pY*dx*sn;
           // XXX dt should be based on the size of the ellipse...
           // 0.10 -> 60 segments on the ellipse
           # define DT 0.1
           for (t = DT; t < 2*M_PI + DT; t+=DT) {
-            x1 = X + pX*dx*cos(t)*cs + pX*dy*sin(t)*sn;
-            y1 = Y - pY*dx*cos(t)*sn + pY*dy*sin(t)*cs;
+            x1 = X + pX*dx*cos(t)*cs - pX*dy*sin(t)*sn;
+            y1 = Y + pY*dx*cos(t)*sn + pY*dy*sin(t)*cs;
             XDrawLine (graphic[0].display, graphic[0].window, graphic[0].gc, x0, y0, x1, y1);
             x0 = x1;