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smokechart.js
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smokechart.js
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function SmokeChart(locator,w,h,mx,my) {
this.parentNode = d3.select(locator);
var htmlid = this.parentNode.attr("id") || locator.replace(/[^a-zA-Z]+/g, '');
var vis = this.parentNode.append("div").attr('class', 'svg')
.append("svg").attr("id", htmlid + "-svg")
.attr("width", w)
.attr("height", h);
var xscale = d3.scale.linear().domain([0,mx]).range([0, w]);
var yscale = d3.scale.linear().domain([0,my+10]).range([h, 0]);
var x1 = xscale(1);
var dxfunc = function(d) { return xscale(d.x) };
var dy0func = function(d) { return isNaN(d.y) ? h*5 : yscale(d.y0); };
var dyfunc = function(d) { return isNaN(d.y) ? h*5 : yscale(d.y+d.y0)};
var lines = {};
var labels = [];
this.selectAll = function(locator) {
return vis.selectAll(locator);
};
this.height = function(num) {
var ret_h = vis.attr('height');
if (typeof num != undefined) {
vis.attr('height', num)
}
return ret_h;
};
var yaxis;
this.yaxis = function(orient,pad,ticks) {
xscale = d3.scale.linear().domain([0,mx]).range([pad, w]);
yaxis = d3.svg.axis().scale(yscale).ticks(ticks).tickSubdivide(1).orient(orient);
vis.append("svg:g")
.attr("class", "y axis")
.attr("transform", "translate(" + pad + ",0)")
.call(yaxis);
return this;
}
this.stretch = function(new_h,new_my) {
var add_h = vis.attr('height') - h;
if (!new_h) new_h = h;
if (my != new_my || new_h != h) {
vis.attr("height", new_h+add_h);
yscale.domain([0, new_my+10]).range([new_h,0]);
if (yaxis) this.selectAll(".y.axis").call(yaxis);
h = new_h;
my = new_my;
}
return this;
};
this._intensity = 0.6;
this._layout = function (src) {
var source = d3.transpose(src);
var data = [];
var intensity = this._intensity;
var half_length = source.length / 2;
source.forEach(function(d, i){
var tmp = [];
d.forEach(function(value,j){
tmp.push({ x:j, y:value }, { x:j+.9, y:value});
});
if (i) {
// i is 1..x here where x = source length
// basically comparing abs(i - x/2) maxdistance x/2-1
var distance = Math.abs(i - half_length); // i=1234 hl=1.5 0.5 0.5 1.5
var percent = (distance + 1) / half_length; // 1 .3333 .3333 1
tmp[0].c = percent;
tmp[0].o = (1 - percent/2) * intensity;
} else {
tmp[0].c = .0;
tmp[0].o = .0;
}
data.push(tmp);
});
return d3.layout.stack()(data);
};
this._line_data = function(data) {
var middle1 = Math.floor(data.length/2);
var mid_data = data[middle1];
if (Math.abs(middle1 - data.length/2) < 0.01) {
data[middle1 - 1].forEach(function(d,i){
mid_data[i].y0 = (mid_data[i].y0+d.y0)/2;
});
}
return mid_data;
};
var area = d3.svg.area().x(dxfunc).y0(dy0func).y1(dyfunc);
var line = d3.svg.line().x(dxfunc).y(dyfunc)
this.addLine = function(line_class,data,color,smoke) {
if (typeof smoke == 'undefined') smoke = '#999';
var color = d3.interpolateRgb(color, smoke);
var data0 = this._layout(data);
if (data0.length > 2) {
var area_class = line_class + '-area';
this.selectAll("path.area."+area_class)
.data(data0).enter()
.append("path").attr("class", "area " + area_class)
.style("fill", function(d) { return color(d[0].c); })
.style("opacity", function(d) { return d[0].o; })
.attr("d", area);
}
this.selectAll("path.line."+line_class)
.data([this._line_data(data0)]).enter()
.append("path").attr("class", "line " + line_class)
.style("stroke",color(0))
.attr("d", line);
return this;
};
this.updateLine = function(line_class,data) {
var d0 = this._layout(data);
var area_class = line_class + '-area';
// you can remove smoke from some chart but you cannot add it,
// 0 values should be provided to addLine if you start without smoke
if (d0.length > 2) {
d3.selectAll("path.area."+area_class)
.data(d0).attr("d", area);
} else {
d3.selectAll("path.area."+area_class).style('opacity', '0');
}
this.selectAll("path.line."+line_class)
.data([this._line_data(d0)]).attr("d", line);
return this;
};
this.addGuide = function(name,number,color) {
var data = d3.range(mx).map(function(){return [number]});
this.addLine(name,data,color);
d3.selectAll("path.line."+name).attr('class', 'guide');
return this;
};
this.updateGuide = function(name,number) {
var data = d3.range(mx).map(function(){return [number]});
this.updateLine(name,data);
return this;
};
this.labelCount = 0;
this.showLabels = function(labels) {
var dx2 = x1/2;
var len = labels.length;
if (len != this.labelCount) {
this.selectAll("text.label").remove();
this.labelCount = 0;
if (!len) return;
if (!this.labelCount) this.height(h+20);
}
if (this.labelCount) {
// update existing
this.selectAll("text.label")
.data(labels)
.text(String);
} else {
// create
this.selectAll("text.label")
.data(labels).enter()
.append("text").attr("class", "label")
.attr("x", function (v,i) { return dx2 + i * w / len } )
.attr("y", h+20)
.attr("text-anchor", "middle")
.text(String);
}
this.labelCount = len;
return this;
};
this.errors = this.selectAll("circle.errors");
this.showMarkers = function(xline) {
if (!this.errors.empty()) this.errors.remove();
var data = [];
var prev = -1;
var cnt = 0;
xline.forEach(function(v,i){if (prev != v) {cnt=0;prev=v} data.push([v,cnt++]) });
var rad = h/500+1.1
this.errors = this.selectAll("circle.errors")
.data(data).enter()
.append("circle")
.attr("class", "errors")
.attr("cx", x1/2)
.attr("r", rad)
.style("fill", "red")
.style("stroke", "none")
.attr("transform", function(d) { return "translate(" + xscale(d[0]) + "," + (h/300+1+(rad+1.5)*d[1]) + ")"; });
return this;
};
this.avlCount = 0;
this.showAvailability = function(percents,height) {
if (typeof height == 'undefined') height = 50;
var shift = 2;
var mod = height/100;
var len = this.avlCount = percents.length;
var wl = w/len;
var wi = x1*mx/len-5;
var xf = function(v,i) {return i*wl}
var hf = function(v,i){ return Math.floor((100-v)*mod+0.9) };
this.selectAll("rect.unavailable")
.data(percents).enter()
.append("rect").attr("class", "unavailable")
.attr("x", xf )
.attr("width", wi)
.attr("height", function(v,i){var dummy=hf(v); return dummy > 0 && dummy < 3 ? 3 : dummy; })
.attr("y", h+shift);
this.selectAll("rect.available")
.data(percents).enter()
.append("rect").attr("class", "available")
.attr("x", xf )
.attr("width", wi)
.attr("height", function (v){return hf(99-v)})
.attr("y", function(v){var dummy=hf(v); if(dummy > 0 && dummy < 1.5) dummy=1.5; return h+dummy+shift})
.append("text");
this.selectAll("text.avlpercent")
.data(percents).enter()
.append("text").attr('class','avlpercent')
.attr("x", function (v,i) { return xf(v,i)+wi/2 } )
.attr("y", function (v) { return h+height/2+2 })
.attr("text-anchor", "middle")
.text(String);
return this;
};
return this;
};
FlameChart = function(locator,w,h,mx,my) {
fc = SmokeChart(locator,w,h,mx,my);
fc._intensity = .8;
fc._line_data = function(data) {
return data[0]
};
fc._layout = function (src) {
var source = d3.transpose(src);
var data = [];
var intensity = this._intensity;
var ml = source.length;
source.forEach(function(d, i){
var tmp = [];
d.forEach(function(value,j){
tmp.push({ x:j, y:value }, { x:j+.9, y:value});
});
if (i) {
var percent = (i+1) / ml;
tmp[0].c = percent;
tmp[0].o = Math.pow(percent, 1.5) * intensity;
} else {
tmp[0].c = .0;
tmp[0].o = .0;
}
data.push(tmp);
});
return d3.layout.stack()(data);
};
return fc;
};