You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
410 lines
14 KiB
JavaScript
410 lines
14 KiB
JavaScript
nv.models.pie = function() {
|
|
"use strict";
|
|
//============================================================
|
|
// Public Variables with Default Settings
|
|
//------------------------------------------------------------
|
|
|
|
var margin = {top: 0, right: 0, bottom: 0, left: 0}
|
|
, width = 500
|
|
, height = 500
|
|
, getX = function(d) { return d.x }
|
|
, getY = function(d) { return d.y }
|
|
, getDescription = function(d) { return d.description }
|
|
, id = Math.floor(Math.random() * 10000) //Create semi-unique ID in case user doesn't select one
|
|
, color = nv.utils.defaultColor()
|
|
, valueFormat = d3.format(',.2f')
|
|
, showLabels = true
|
|
, pieLabelsOutside = true
|
|
, donutLabelsOutside = false
|
|
, labelType = "key"
|
|
, labelThreshold = .02 //if slice percentage is under this, don't show label
|
|
, donut = false
|
|
, labelSunbeamLayout = false
|
|
, startAngle = false
|
|
, endAngle = false
|
|
, donutRatio = 0.5
|
|
, dispatch = d3.dispatch('chartClick', 'elementClick', 'elementDblClick', 'elementMouseover', 'elementMouseout')
|
|
;
|
|
|
|
//============================================================
|
|
|
|
|
|
function chart(selection) {
|
|
selection.each(function(data) {
|
|
var availableWidth = width - margin.left - margin.right,
|
|
availableHeight = height - margin.top - margin.bottom,
|
|
radius = Math.min(availableWidth, availableHeight) / 2,
|
|
arcRadius = radius-(radius / 5),
|
|
container = d3.select(this);
|
|
|
|
|
|
//------------------------------------------------------------
|
|
// Setup containers and skeleton of chart
|
|
|
|
//var wrap = container.selectAll('.nv-wrap.nv-pie').data([data]);
|
|
var wrap = container.selectAll('.nv-wrap.nv-pie').data(data);
|
|
var wrapEnter = wrap.enter().append('g').attr('class','nvd3 nv-wrap nv-pie nv-chart-' + id);
|
|
var gEnter = wrapEnter.append('g');
|
|
var g = wrap.select('g');
|
|
|
|
gEnter.append('g').attr('class', 'nv-pie');
|
|
gEnter.append('g').attr('class', 'nv-pieLabels');
|
|
|
|
wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
|
|
g.select('.nv-pie').attr('transform', 'translate(' + availableWidth / 2 + ',' + availableHeight / 2 + ')');
|
|
g.select('.nv-pieLabels').attr('transform', 'translate(' + availableWidth / 2 + ',' + availableHeight / 2 + ')');
|
|
|
|
//------------------------------------------------------------
|
|
|
|
|
|
container
|
|
.on('click', function(d,i) {
|
|
dispatch.chartClick({
|
|
data: d,
|
|
index: i,
|
|
pos: d3.event,
|
|
id: id
|
|
});
|
|
});
|
|
|
|
|
|
var arc = d3.svg.arc()
|
|
.outerRadius(arcRadius);
|
|
|
|
if (startAngle) arc.startAngle(startAngle)
|
|
if (endAngle) arc.endAngle(endAngle);
|
|
if (donut) arc.innerRadius(radius * donutRatio);
|
|
|
|
// Setup the Pie chart and choose the data element
|
|
var pie = d3.layout.pie()
|
|
.sort(null)
|
|
.value(function(d) { return d.disabled ? 0 : getY(d) });
|
|
|
|
var slices = wrap.select('.nv-pie').selectAll('.nv-slice')
|
|
.data(pie);
|
|
|
|
var pieLabels = wrap.select('.nv-pieLabels').selectAll('.nv-label')
|
|
.data(pie);
|
|
|
|
slices.exit().remove();
|
|
pieLabels.exit().remove();
|
|
|
|
var ae = slices.enter().append('g')
|
|
.attr('class', 'nv-slice')
|
|
.on('mouseover', function(d,i){
|
|
d3.select(this).classed('hover', true);
|
|
dispatch.elementMouseover({
|
|
label: getX(d.data),
|
|
value: getY(d.data),
|
|
point: d.data,
|
|
pointIndex: i,
|
|
pos: [d3.event.pageX, d3.event.pageY],
|
|
id: id
|
|
});
|
|
})
|
|
.on('mouseout', function(d,i){
|
|
d3.select(this).classed('hover', false);
|
|
dispatch.elementMouseout({
|
|
label: getX(d.data),
|
|
value: getY(d.data),
|
|
point: d.data,
|
|
index: i,
|
|
id: id
|
|
});
|
|
})
|
|
.on('click', function(d,i) {
|
|
dispatch.elementClick({
|
|
label: getX(d.data),
|
|
value: getY(d.data),
|
|
point: d.data,
|
|
index: i,
|
|
pos: d3.event,
|
|
id: id
|
|
});
|
|
d3.event.stopPropagation();
|
|
})
|
|
.on('dblclick', function(d,i) {
|
|
dispatch.elementDblClick({
|
|
label: getX(d.data),
|
|
value: getY(d.data),
|
|
point: d.data,
|
|
index: i,
|
|
pos: d3.event,
|
|
id: id
|
|
});
|
|
d3.event.stopPropagation();
|
|
});
|
|
|
|
slices
|
|
.attr('fill', function(d,i) { return color(d, i); })
|
|
.attr('stroke', function(d,i) { return color(d, i); });
|
|
|
|
var paths = ae.append('path')
|
|
.each(function(d) { this._current = d; });
|
|
//.attr('d', arc);
|
|
|
|
slices.select('path')
|
|
.transition()
|
|
.attr('d', arc)
|
|
.attrTween('d', arcTween);
|
|
|
|
if (showLabels) {
|
|
// This does the normal label
|
|
var labelsArc = d3.svg.arc().innerRadius(0);
|
|
|
|
if (pieLabelsOutside){ labelsArc = arc; }
|
|
|
|
if (donutLabelsOutside) { labelsArc = d3.svg.arc().outerRadius(arc.outerRadius()); }
|
|
|
|
pieLabels.enter().append("g").classed("nv-label",true)
|
|
.each(function(d,i) {
|
|
var group = d3.select(this);
|
|
|
|
group
|
|
.attr('transform', function(d) {
|
|
if (labelSunbeamLayout) {
|
|
d.outerRadius = arcRadius + 10; // Set Outer Coordinate
|
|
d.innerRadius = arcRadius + 15; // Set Inner Coordinate
|
|
var rotateAngle = (d.startAngle + d.endAngle) / 2 * (180 / Math.PI);
|
|
if ((d.startAngle+d.endAngle)/2 < Math.PI) {
|
|
rotateAngle -= 90;
|
|
} else {
|
|
rotateAngle += 90;
|
|
}
|
|
return 'translate(' + labelsArc.centroid(d) + ') rotate(' + rotateAngle + ')';
|
|
} else {
|
|
d.outerRadius = radius + 10; // Set Outer Coordinate
|
|
d.innerRadius = radius + 15; // Set Inner Coordinate
|
|
return 'translate(' + labelsArc.centroid(d) + ')'
|
|
}
|
|
});
|
|
|
|
group.append('rect')
|
|
.style('stroke', '#fff')
|
|
.style('fill', '#fff')
|
|
.attr("rx", 3)
|
|
.attr("ry", 3);
|
|
|
|
group.append('text')
|
|
.style('text-anchor', labelSunbeamLayout ? ((d.startAngle + d.endAngle) / 2 < Math.PI ? 'start' : 'end') : 'middle') //center the text on it's origin or begin/end if orthogonal aligned
|
|
.style('fill', '#000')
|
|
|
|
});
|
|
|
|
var labelLocationHash = {};
|
|
var avgHeight = 14;
|
|
var avgWidth = 140;
|
|
var createHashKey = function(coordinates) {
|
|
|
|
return Math.floor(coordinates[0]/avgWidth) * avgWidth + ',' + Math.floor(coordinates[1]/avgHeight) * avgHeight;
|
|
};
|
|
pieLabels.transition()
|
|
.attr('transform', function(d) {
|
|
if (labelSunbeamLayout) {
|
|
d.outerRadius = arcRadius + 10; // Set Outer Coordinate
|
|
d.innerRadius = arcRadius + 15; // Set Inner Coordinate
|
|
var rotateAngle = (d.startAngle + d.endAngle) / 2 * (180 / Math.PI);
|
|
if ((d.startAngle+d.endAngle)/2 < Math.PI) {
|
|
rotateAngle -= 90;
|
|
} else {
|
|
rotateAngle += 90;
|
|
}
|
|
return 'translate(' + labelsArc.centroid(d) + ') rotate(' + rotateAngle + ')';
|
|
} else {
|
|
d.outerRadius = radius + 10; // Set Outer Coordinate
|
|
d.innerRadius = radius + 15; // Set Inner Coordinate
|
|
|
|
/*
|
|
Overlapping pie labels are not good. What this attempts to do is, prevent overlapping.
|
|
Each label location is hashed, and if a hash collision occurs, we assume an overlap.
|
|
Adjust the label's y-position to remove the overlap.
|
|
*/
|
|
var center = labelsArc.centroid(d);
|
|
var hashKey = createHashKey(center);
|
|
if (labelLocationHash[hashKey]) {
|
|
center[1] -= avgHeight;
|
|
}
|
|
labelLocationHash[createHashKey(center)] = true;
|
|
return 'translate(' + center + ')'
|
|
}
|
|
});
|
|
pieLabels.select(".nv-label text")
|
|
.style('text-anchor', labelSunbeamLayout ? ((d.startAngle + d.endAngle) / 2 < Math.PI ? 'start' : 'end') : 'middle') //center the text on it's origin or begin/end if orthogonal aligned
|
|
.text(function(d, i) {
|
|
var percent = (d.endAngle - d.startAngle) / (2 * Math.PI);
|
|
var labelTypes = {
|
|
"key" : getX(d.data),
|
|
"value": getY(d.data),
|
|
"percent": d3.format('%')(percent)
|
|
};
|
|
return (d.value && percent > labelThreshold) ? labelTypes[labelType] : '';
|
|
});
|
|
}
|
|
|
|
|
|
// Computes the angle of an arc, converting from radians to degrees.
|
|
function angle(d) {
|
|
var a = (d.startAngle + d.endAngle) * 90 / Math.PI - 90;
|
|
return a > 90 ? a - 180 : a;
|
|
}
|
|
|
|
function arcTween(a) {
|
|
a.endAngle = isNaN(a.endAngle) ? 0 : a.endAngle;
|
|
a.startAngle = isNaN(a.startAngle) ? 0 : a.startAngle;
|
|
if (!donut) a.innerRadius = 0;
|
|
var i = d3.interpolate(this._current, a);
|
|
this._current = i(0);
|
|
return function(t) {
|
|
return arc(i(t));
|
|
};
|
|
}
|
|
|
|
function tweenPie(b) {
|
|
b.innerRadius = 0;
|
|
var i = d3.interpolate({startAngle: 0, endAngle: 0}, b);
|
|
return function(t) {
|
|
return arc(i(t));
|
|
};
|
|
}
|
|
|
|
});
|
|
|
|
return chart;
|
|
}
|
|
|
|
|
|
//============================================================
|
|
// Expose Public Variables
|
|
//------------------------------------------------------------
|
|
|
|
chart.dispatch = dispatch;
|
|
chart.options = nv.utils.optionsFunc.bind(chart);
|
|
|
|
chart.margin = function(_) {
|
|
if (!arguments.length) return margin;
|
|
margin.top = typeof _.top != 'undefined' ? _.top : margin.top;
|
|
margin.right = typeof _.right != 'undefined' ? _.right : margin.right;
|
|
margin.bottom = typeof _.bottom != 'undefined' ? _.bottom : margin.bottom;
|
|
margin.left = typeof _.left != 'undefined' ? _.left : margin.left;
|
|
return chart;
|
|
};
|
|
|
|
chart.width = function(_) {
|
|
if (!arguments.length) return width;
|
|
width = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.height = function(_) {
|
|
if (!arguments.length) return height;
|
|
height = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.values = function(_) {
|
|
nv.log("pie.values() is no longer supported.");
|
|
return chart;
|
|
};
|
|
|
|
chart.x = function(_) {
|
|
if (!arguments.length) return getX;
|
|
getX = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.y = function(_) {
|
|
if (!arguments.length) return getY;
|
|
getY = d3.functor(_);
|
|
return chart;
|
|
};
|
|
|
|
chart.description = function(_) {
|
|
if (!arguments.length) return getDescription;
|
|
getDescription = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.showLabels = function(_) {
|
|
if (!arguments.length) return showLabels;
|
|
showLabels = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.labelSunbeamLayout = function(_) {
|
|
if (!arguments.length) return labelSunbeamLayout;
|
|
labelSunbeamLayout = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.donutLabelsOutside = function(_) {
|
|
if (!arguments.length) return donutLabelsOutside;
|
|
donutLabelsOutside = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.pieLabelsOutside = function(_) {
|
|
if (!arguments.length) return pieLabelsOutside;
|
|
pieLabelsOutside = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.labelType = function(_) {
|
|
if (!arguments.length) return labelType;
|
|
labelType = _;
|
|
labelType = labelType || "key";
|
|
return chart;
|
|
};
|
|
|
|
chart.donut = function(_) {
|
|
if (!arguments.length) return donut;
|
|
donut = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.donutRatio = function(_) {
|
|
if (!arguments.length) return donutRatio;
|
|
donutRatio = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.startAngle = function(_) {
|
|
if (!arguments.length) return startAngle;
|
|
startAngle = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.endAngle = function(_) {
|
|
if (!arguments.length) return endAngle;
|
|
endAngle = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.id = function(_) {
|
|
if (!arguments.length) return id;
|
|
id = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.color = function(_) {
|
|
if (!arguments.length) return color;
|
|
color = nv.utils.getColor(_);
|
|
return chart;
|
|
};
|
|
|
|
chart.valueFormat = function(_) {
|
|
if (!arguments.length) return valueFormat;
|
|
valueFormat = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.labelThreshold = function(_) {
|
|
if (!arguments.length) return labelThreshold;
|
|
labelThreshold = _;
|
|
return chart;
|
|
};
|
|
//============================================================
|
|
|
|
|
|
return chart;
|
|
}
|