Rolling Reuleaux triangle: Difference between revisions

Revision as of 14:41, 4 October 2010

@@ Line 23: / Line 23: @@
 var reuleauxTriangle = brd.create('curve', JXG.Math.Numerics.reuleauxPolygon(pol3.vertices, 3),
         {strokeWidth:6, strokeColor:'#d66d55', fillColor:'#ad5544', highlightFillColor:'#ad5544'});
+var S = brd.create('point', [
+            function(){return pol3.vertices[0].X()+pol3.vertices[1].X()+pol3.vertices[2].X(); },
+            function(){return pol3.vertices[0].Y()+pol3.vertices[1].Y()+pol3.vertices[2].Y(); }],
+            strokeColor:'#703545', fillColor:'#703545', highlightFillColor:'#703545'});
 brd.unsuspendUpdate();
 var rol3 = JXG.Math.Numerics.createRoulette(line, reuleauxTriangle, -2, Math.PI/90, 1, 50, [A,B]);