Circle approximation: Difference between revisions
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A WASSERMANN (talk | contribs) No edit summary |
A WASSERMANN (talk | contribs) No edit summary |
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var rot = brd.createElement('transform', [function() {return Math.PI*2.0/n.Value();},p0], {type:'rotate'}); // angle, rotation center | var rot = brd.createElement('transform', [function() {return Math.PI*2.0/n.Value();},p0], {type:'rotate'}); // angle, rotation center | ||
var ptmp = brd.createElement('point',[0,0],{visible:false,withLabel:false}); // dummy point for the rotation | var ptmp = brd.createElement('point',[0,0],{visible:false,withLabel:false}); // dummy point for the rotation | ||
var | var cOut = brd.createElement('curve',[[],[]],{fillColor:'#0033ff',highlightFillColor:'#0033ff',fillOpacity:0.5}); | ||
var | var cIn = brd.createElement('curve',[[],[]],{fillColor:'#ff3300',highlightFillColor:'#ff3300',fillOpacity:0.5}); | ||
cIn.updateDataArray = function() { | cIn.updateDataArray = function() { | ||
var i; | var i; | ||
this.dataX = [ | this.dataX = [p0.X()+circ.getRadius()]; | ||
this.dataY = [ | this.dataY = [p0.Y()]; | ||
ptmp.setPositionDirectly(JXG.COORDS_BY_USER, | ptmp.setPositionDirectly(JXG.COORDS_BY_USER,p0.X()+circ.getRadius(),p0.Y()); | ||
for (i=0;i<n.Value();i++) { | for (i=0;i<n.Value();i++) { | ||
rot.applyOnce(ptmp); | rot.applyOnce(ptmp); |