Colorful circles: Difference between revisions

From JSXGraph Wiki
No edit summary
No edit summary
 
(12 intermediate revisions by the same user not shown)
Line 1: Line 1:
<jsxgraph width="600" height="600">
<jsxgraph width="600" height="600">
var brd = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-0.1,1.1,1.1,-0.1]});
JXG.Options.point.zoom = true;
var brd = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-0.1,1.1,1.1,-0.1], takeFirst: false});
var i, h, s, v;
var i, h, s, v;


brd.suspendUpdate();
for (i=0;i<100;i++) {
for (i=0;i<100;i++) {
   h = Math.random()*360;
   h = Math.random()*360;
   s = Math.random();
   s = Math.random();
   v = 1.0;
   v = 1.0;
   brd.createElement('point',[Math.random(),Math.random()],
   brd.create('point',[Math.random(),Math.random()],
     {
     {
       withLabel:false,  
       withLabel:false,  
Line 19: Line 21:
       });
       });
}
}
brd.unsuspendUpdate();
</jsxgraph>
</jsxgraph>


===The underlying JavaScript code===
===The underlying JavaScript code===
<source lang="javascript">
<source lang="javascript">
JXG.Options.point.zoom = true;
var brd = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-0.1,1.1,1.1,-0.1]});
var brd = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-0.1,1.1,1.1,-0.1]});
var i, h, s, v;
var i, h, s, v;
Line 30: Line 34:
   s = Math.random();
   s = Math.random();
   v = 1.0;
   v = 1.0;
   brd.createElement('point',[Math.random(),Math.random()],
   brd.create('point',[Math.random(),Math.random()],
     {
     {
       withLabel:false,  
       withLabel:false,  

Latest revision as of 20:08, 14 November 2020

The underlying JavaScript code

JXG.Options.point.zoom = true;
var brd = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-0.1,1.1,1.1,-0.1]});
var i, h, s, v;

for (i=0;i<30;i++) {
  h = Math.random()*360;
  s = Math.random();
  v = 1.0;
  brd.create('point',[Math.random(),Math.random()],
     {
       withLabel:false, 
       face:'circle', 
       size:Math.random()*65,
       strokeColor:JXG.hsv2rgb(h,s,v),
       fillColor:JXG.hsv2rgb((h+180)%360,s,v),
       highlightFillColor:JXG.hsv2rgb(h,s,v),
       fillOpacity:0.7,
       highlightFillOpacity:0.4
      });
}