Rolling circle on circle: Difference between revisions

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Line 11: Line 11:
var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-5,5,5,-5], keepaspectratio:true});
var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-5,5,5,-5], keepaspectratio:true});
brd.suspendUpdate();
brd.suspendUpdate();
// Big circle
// Big circle
var bigCircle = brd.create('curve', [
var bigCircle = brd.create('curve', [
Line 18: Line 17:
// Circle
// Circle
var P = brd.create('point',[4,0],{name:'P', trace:false});
var P = brd.create('point',[4,0],{name:'P', trace:false});
var C = brd.create('point',[2,0],{name:'C'});
var C = brd.create('point',[1,0],{name:'C'});
var circle = brd.create('curve',[
var circle = brd.create('curve',[
                     function(t){var d = P.Dist(C);
                     function(t){var d = P.Dist(C);
Line 30: Line 29:


// Point on circle
// Point on circle
var B = brd.create('glider',[0,2,circle],{name:'B', color:'blue',trace:true});
var B = brd.create('glider',[0,2,circle],{name:'B', color:'blue',trace:false});
brd.create('segment',[C,B],{color:'black'});  
brd.create('segment',[C,B],{color:'black'});  
brd.unsuspendUpdate();
brd.unsuspendUpdate();

Revision as of 15:21, 2 October 2010

The underlying JavaScript code