I know that the Android browser for 2.3 does not support SVG, but I would like to know if I can convert SVG d3.js renderings to canvas using Canvg on clients. Can the browser parse SVG elements at all or should this conversion from SVG to Canvas take place on the server side? Thanks in advance!
var btoken = window.location.search.split( 'bearer_token=')[1].split('&')[0];
var endpoint = "http://dcaps-staging.media.mit.edu:8080/api/reality_analysis_service/get_reality_analysis_data?document_key=radialData&bearer_token=" + btoken;
console.log(endpoint);
d3.json(endpoint, function(json){
console.log(json);
var data = json.radialData.data;
var csvdata;
csvdata = data;
var output_ = '';
for( property in data) {
output_ += property +':' + data[property]+';';
}
console.log(output_);
var meta = json.radialData.meta;
var capitalMeta = [];
for (i = 0; i < meta.length; i++){
capitalMeta.push(capitaliseFirstLetter(meta[i]));
}
console.log(window.innerWidth, window.innerHeight )
var width = window.innerWidth - 5,
height = window.innerHeight - (window.innerHeight * .35),
outerRadius = height / 2 - 10,
innerRadius = 120;
var angle = d3.scale.linear()
.range([0, 2 * Math.PI]);
var radius = d3.scale.linear()
.range([0, outerRadius]);
var z = d3.scale.category20();
var whiteColor = d3.rgb(255,255,255);
var redColor = d3.rgb(200,100,50);
var newColor = d3.rgb(100,100,100);
var pink = d3.rgb(238,98,226);
var stack = d3.layout.stack()
.offset("zero")
.values(function(d) { return d.values; })
.x(function(d, i) { return i; })
.y(function(d) { return d.value; });
var replaceY0 = 0;
var nest = d3.nest()
.key(function(d) { return d.layer; });
var line = d3.svg.line.radial()
.interpolate("cardinal-closed")
.angle(function(d,i) { return angle(i); })
.radius(function(d) { return radius(replaceY0 + d.y); });
var lowestValues = [];
for (i = 0; i < csvdata.length; i++){
if (csvdata[i].layer == "averageLow"){
lowestValues.push(csvdata[i].value);
}
}
var area = d3.svg.area.radial()
.interpolate("cardinal-closed")
.angle(function(d, i) { return angle(i); })
.innerRadius(function(d, i) {
if (d.layer == "User"){
return radius(d.y);
}
else{
return radius(lowestValues[i]);
}
})
.outerRadius(function(d) { return radius(replaceY0 + d.y); });
var heightPadding = 20;
var widthPadding = 2;
var svg = d3.select("#radial_chart").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + ((width / 2) + widthPadding) + "," + ((height / 2) + heightPadding) + ")");
var output_SVG = '';
for( property in svg[0][0]) {
output_SVG += property +':' + data[property]+';';
}
console.log(output_SVG);
var layers = stack(nest.entries(data));
var swapper = layers[2];
layers[2] = layers[1];
layers[1] = swapper;
console.log(capitalMeta[0]);
angle.domain([0, layers.length]);
radius.domain([0, 10]);
var x = svg.selectAll(".axis");
alert(svg.toString());
svg.selectAll(".axis")
.data(d3.range(angle.domain()[1]))
.enter().append("g")
.attr("class", "axis")
.attr("transform", function(d) { return "rotate(" + angle(d) * 180 / Math.PI + ")"; })
.call(d3.svg.axis()
.scale(radius.copy().range([-5, -outerRadius]))
.ticks(5)
.orient("left"))
.append("text")
.attr("y",
function (d) {
if (window.innerWidth < 455){
console.log("innerWidth less than 455: ",window.innerWidth);
return -(window.innerHeight * .33);
}
else{
console.log("innerWidth greater than 455: ",window.innerWidth);
return -(window.innerHeight * .33);
}
})
.attr("dy", ".71em")
.attr("text-anchor", "middle")
.text(function(d, i) { return capitalMeta[i]; })
.attr("style","font-size:12px;");
svg.selectAll(".layer")
.data(layers)
.enter().append("path")
.attr("class", "layer")
.attr("d", function(d) { return area(d.values); })
.style("fill",
function(d, i)
{
if (i === 0){
return whiteColor;
}
else if (i == 1){
return z(i);
}
else
return newColor;
})
.style("opacity",.6)
.style("stroke",function(d, i){
if (i == 0)
return whiteColor;
else if (i == 2)
return pink;
else if (i == 1)
return whiteColor;
})
.style("stroke-width",function(d, i){
if (i == 1){
return 0;
}
else if (i == 0)
return 0;
else
return 7;
});
alert('finished');
alert('finished');
});
function capitaliseFirstLetter(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}