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if(!dojo._hasResource["dojox.charting.plot2d.Default"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojox.charting.plot2d.Default"] = true;
dojo.provide("dojox.charting.plot2d.Default");
dojo.require("dojox.charting.plot2d.common");
dojo.require("dojox.charting.plot2d.Base");
dojo.require("dojox.lang.utils");
dojo.require("dojox.lang.functional");
dojo.require("dojox.lang.functional.reversed");
(function(){
var df = dojox.lang.functional, du = dojox.lang.utils,
dc = dojox.charting.plot2d.common,
purgeGroup = df.lambda("item.purgeGroup()");
dojo.declare("dojox.charting.plot2d.Default", dojox.charting.plot2d.Base, {
defaultParams: {
hAxis: "x", // use a horizontal axis named "x"
vAxis: "y", // use a vertical axis named "y"
lines: true, // draw lines
areas: false, // draw areas
markers: false, // draw markers
shadows: 0, // draw shadows
tension: 0 // draw curved lines (tension>0)
},
optionalParams: {}, // no optional parameters
constructor: function(chart, kwArgs){
this.opt = dojo.clone(this.defaultParams);
du.updateWithObject(this.opt, kwArgs);
this.series = [];
this.hAxis = this.opt.hAxis;
this.vAxis = this.opt.vAxis;
},
calculateAxes: function(dim){
this._calc(dim, dc.collectSimpleStats(this.series));
return this;
},
render: function(dim, offsets){
if(this.dirty){
dojo.forEach(this.series, purgeGroup);
this.cleanGroup();
var s = this.group;
df.forEachRev(this.series, function(item){ item.cleanGroup(s); });
}
var t = this.chart.theme, stroke, outline, color, marker;
for(var i = this.series.length - 1; i >= 0; --i){
var run = this.series[i];
if(!this.dirty && !run.dirty){ continue; }
run.cleanGroup();
if(!run.data.length){
run.dirty = false;
continue;
}
// inner function for translating polylines to curves with tension
function curve(arr, tension){
var p=dojo.map(arr, function(item, i){
if(i==0){ return "M" + item.x + "," + item.y; }
var dx=item.x-arr[i-1].x, dy=arr[i-1].y;
return "C"+(item.x-(tension-1)*(dx/tension))+","+dy+" "+(item.x-(dx/tension))+","+item.y+" "+item.x+","+item.y;
});
return p.join(" ");
}
var s = run.group, lpoly;
if(typeof run.data[0] == "number"){
lpoly = dojo.map(run.data, function(v, i){
return {
x: this._hScaler.scale * (i + 1 - this._hScaler.bounds.lower) + offsets.l,
y: dim.height - offsets.b - this._vScaler.scale * (v - this._vScaler.bounds.lower)
};
}, this);
}else{
lpoly = dojo.map(run.data, function(v, i){
return {
x: this._hScaler.scale * (v.x - this._hScaler.bounds.lower) + offsets.l,
y: dim.height - offsets.b - this._vScaler.scale * (v.y - this._vScaler.bounds.lower)
};
}, this);
}
if(!run.fill || !run.stroke){
// need autogenerated color
color = run.dyn.color = new dojo.Color(t.next("color"));
}
var lpath="";
if(this.opt.tension){
var lpath=curve(lpoly, this.opt.tension);
}
if(this.opt.areas){
var fill = run.fill ? run.fill : dc.augmentFill(t.series.fill, color);
var apoly = dojo.clone(lpoly);
if(this.opt.tension){
var apath="L" + (apoly[apoly.length-1].x) + "," + (dim.height-offsets.b) + " "
+ "L"+apoly[0].x+","+(dim.height-offsets.b)+" "
+ "L"+apoly[0].x+","+apoly[0].y;
run.dyn.fill = s.createPath(lpath+" "+apath).setFill(fill).getFill();
} else {
apoly.push({x: lpoly[lpoly.length - 1].x, y: dim.height - offsets.b});
apoly.push({x: lpoly[0].x, y: dim.height - offsets.b});
apoly.push(lpoly[0]);
run.dyn.fill = s.createPolyline(apoly).setFill(fill).getFill();
}
}
if(this.opt.lines || this.opt.markers){
// need a stroke
stroke = run.stroke ? dc.makeStroke(run.stroke) : dc.augmentStroke(t.series.stroke, color);
if(run.outline || t.series.outline){
outline = dc.makeStroke(run.outline ? run.outline : t.series.outline);
outline.width = 2 * outline.width + stroke.width;
}
}
if(this.opt.markers){
// need a marker
marker = run.dyn.marker = run.marker ? run.marker : t.next("marker");
}
if(this.opt.shadows && stroke){
var sh = this.opt.shadows, shadowColor = new dojo.Color([0, 0, 0, 0.3]),
spoly = dojo.map(lpoly, function(c){
return {x: c.x + sh.dx, y: c.y + sh.dy};
}),
shadowStroke = dojo.clone(outline ? outline : stroke);
shadowStroke.color = shadowColor;
shadowStroke.width += sh.dw ? sh.dw : 0;
if(this.opt.lines){
if(this.opt.tension){
s.createPath(curve(spoly, this.opt.tension)).setStroke(shadowStroke);
} else {
s.createPolyline(spoly).setStroke(shadowStroke);
}
}
if(this.opt.markers){
dojo.forEach(spoly, function(c){
s.createPath("M" + c.x + " " + c.y + " " + marker).setStroke(shadowStroke).setFill(shadowColor);
}, this);
}
}
if(this.opt.lines){
if(outline){
if(this.opt.tension){
run.dyn.outline = s.createPath(lpath).setStroke(outline).getStroke();
} else {
run.dyn.outline = s.createPolyline(lpoly).setStroke(outline).getStroke();
}
}
if(this.opt.tension){
run.dyn.stroke = s.createPath(lpath).setStroke(stroke).getStroke();
} else {
run.dyn.stroke = s.createPolyline(lpoly).setStroke(stroke).getStroke();
}
}
if(this.opt.markers){
dojo.forEach(lpoly, function(c){
var path = "M" + c.x + " " + c.y + " " + marker;
if(outline){
s.createPath(path).setStroke(outline);
}
s.createPath(path).setStroke(stroke).setFill(stroke.color);
}, this);
}
run.dirty = false;
}
this.dirty = false;
return this;
}
});
})();
}
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