Google style chart: Difference between revisions
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<jsxgraph width="600" height="400"> | <jsxgraph width="600" height="400"> | ||
var graph1; | var graph1; | ||
var brd = JXG.JSXGraph.initBoard('jxgbox', {originX: 20, originY: 300, axis: true, unitX: 28, unitY: 50 | var brd = JXG.JSXGraph.initBoard('jxgbox', {originX: 20, originY: 300, axis: true, unitX: 28, unitY: 50}); | ||
function doIt() { | function doIt() { |
Revision as of 17:01, 10 May 2009
JavaScript code to produce this chart
<jsxgraph width="600" height="400">
var graph1;
var brd = JXG.JSXGraph.initBoard('jxgbox', {originX: 20, originY: 300, axis: true, unitX: 28, unitY: 50});
function doIt() {
var i, x1, y1;
var p;
var points = [];
var x = [];
var y = [];
var start = 0;
var end = 20;
points.push(brd.createElement('point', [start,0], {visible:false, name:'', fixed:true}));
for (i=start;i<=end;i++) {
// Generate random coordinates
x1 = i;
y1 = Math.random()*4+1;
// Plot it
p = brd.createElement('point', [x1,y1],
{strokeWidth:2, strokeColor:'#ffffff',
highlightStrokeColor:'#0077cc', fillColor:'#0077cc',
highlightFillColor:'#0077cc', style:6, name:'', fixed:true}
);
points.push(p);
x.push(x1);
y.push(y1);
}
// Filled area. We need two additional points [start,0] and [end,0]
points.push(brd.createElement('point', [end,0], {visible:false, name:'', fixed:true}));
brd.createElement('polygon',points, {withLines:false,fillColor:'#e6f2fa'});
// Curve:
brd.createElement('curve', [x,y],
{strokeWidth:3, strokeColor:'#0077cc',
highlightStrokeColor:'#0077cc'}
);
}
brd.suspendUpdate();
doIt();
brd.unsuspendUpdate();
</jsxgraph>