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spaceMap.js
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/*jslint browser: true, nomen: true */
(function (tangelo, $, d3, google) {
'use strict';
if (!($ && $.widget && d3)) {
$.fn.nodelink = tangelo.unavailable({
plugin: 'nodelink',
required: ['JQuery', 'JQuery UI', 'd3']
});
return;
}
tangelo.widget('tangelo.spaceMap', {
options: {
data: [],
constraints: [],
linkDistance: 20,
charge: -30,
gravity: 0.1,
label: tangelo.accessor({value: ''}),
width: $(window).width(),
height: $(window).height(),
showPoints: true,
showConstraints: false,
showLinks: true,
layout: true
},
_create: function () {
var options,
mapConfig,
mapOptions,
that = this;
this.force = d3.layout.force();
// mapConfig = {
// initialize: function (svg) {
// that.svg = d3.select(svg);
// that._update();
// },
//
// draw: function (d) {
// this.shift(that.svg.node(), -d.translation.x, -d.translation.y);
// that.nodes.forEach(function(node) {
// var loc, googleLoc, pixelLoc;
// if (node.constraint && node.constraint.type === 'map') {
// loc = node.constraint.accessor(node.data);
// googleLoc = new google.maps.LatLng(loc.lat, loc.lng);
// pixelLoc = d.projection.fromLatLngToContainerPixel(googleLoc);
// node.mapX = pixelLoc.x;
// node.mapY = pixelLoc.y;
// }
// });
// that.force.start();
// that._tick();
// }
// };
//
// // Some options for initializing the google map.
// mapOptions = {
// zoom: 2,
// center: new google.maps.LatLng(15, 0),
// mapTypeId: google.maps.MapTypeId.ROADMAP
// };
// this.map = new tangelo.GoogleMapSVG(this.element.get(0), mapOptions, mapConfig);
// this.map.on(['draw', 'drag', 'zoom_changed'], mapConfig.draw);
this.svg = d3.select(this.element.get(0)).append('svg')
.attr('width', '100%')
.attr('height', '100%');
this.legends = this.svg.append('g');
options = $.extend(true, {}, this.options);
options.data = this.options.data;
delete options.disabled;
delete options.create;
this._setOptions(options);
this._update();
},
_update: function () {
var that = this,
dataNodes = [],
colorScale,
nodeEnter,
oldNodes = this.nodes,
i,
constraintsOrdered,
padding = 80,
axis,
xRange = [padding, that.options.width - padding],
yRange = [that.options.height - padding, padding],
linexConstraints,
lineyConstraints,
xTypes = ['x', 'ordinalx', 'xy'],
yTypes = ['y', 'ordinaly', 'xy'],
xConstraints = [],
yConstraints = [];
if (!this.svg) {
return;
}
this.nodes = [];
this.links = [];
this.mapOpacity = 0;
this.options.data.forEach(function (d) {
var node = {data: d};
that.nodes.push(node);
dataNodes.push(node);
});
// Take care of spreading out linex and liney dimensions
linexConstraints = this.options.constraints.filter(function (d) { return d.type === 'linex'; });
lineyConstraints = this.options.constraints.filter(function (d) { return d.type === 'liney'; });
linexConstraints.forEach(function (d, i) {
d.yPosition = yRange[0] + (i + 1) / linexConstraints.length * (yRange[1] - yRange[0]);
});
lineyConstraints.forEach(function (d, i) {
d.xPosition = xRange[0] + (i + 1) / lineyConstraints.length * (xRange[1] - xRange[0]);
});
// Take care of multiple x and y dimensions
this.options.constraints.forEach(function (constraint) {
if (xTypes.indexOf(constraint.type) !== -1) {
xConstraints.push(constraint);
}
if (yTypes.indexOf(constraint.type) !== -1) {
yConstraints.push(constraint);
}
});
xConstraints.forEach(function (constraint, i) {
var span = xRange[1] - xRange[0],
num = xConstraints.length;
constraint.xRange = [xRange[0] + i * span / num, xRange[0] + (i + 1) * span / num - padding];
});
yConstraints.forEach(function (constraint, i) {
var span = yRange[1] - yRange[0],
num = yConstraints.length;
constraint.yRange = [yRange[0] + i * span / num, yRange[0] + (i + 1) * span / num + padding];
});
// Now turn x,y pairs into xy
constraintsOrdered = [];
if (xConstraints.length > 0 && yConstraints.length > 0) {
dataNodes.forEach(function (node) {
node.data._paired = {};
});
xConstraints.forEach(function (xConstraint, i) {
yConstraints.forEach(function (yConstraint, j) {
constraintsOrdered.push({
type: 'xy',
accessor: tangelo.accessor({field: '_paired._' + i + '_' + j}),
xRange: xConstraint.xRange,
xOrdinal: xConstraint.type === 'ordinalx',
yRange: yConstraint.yRange,
yOrdinal: yConstraint.type === 'ordinaly',
strength: xConstraint.strength * yConstraint.strength,
xConstraint: xConstraint,
yConstraint: yConstraint
});
dataNodes.forEach(function (node) {
var d = node.data;
d._paired['_' + i + '_' + j] = {
x: xConstraint.accessor(d),
y: yConstraint.accessor(d)
};
});
});
});
this.options.constraints.forEach(function (constraint) {
if (constraint.type !== 'binx' &&
constraint.type !== 'biny' &&
xTypes.indexOf(constraint.type) === -1 &&
yTypes.indexOf(constraint.type) === -1) {
constraintsOrdered.push(constraint);
}
});
} else {
this.options.constraints.forEach(function (constraint) {
if (constraint.type !== 'binx' && constraint.type !== 'biny') {
constraintsOrdered.push(constraint);
}
});
}
// Put binx and biny last, since they modify constraint functions
this.options.constraints.forEach(function (constraint) {
if (constraint.type === 'binx' || constraint.type === 'biny') {
constraintsOrdered.push(constraint);
}
});
this.legends.selectAll('*').remove();
function styleAxis(a) {
a.style('shape-rendering', 'crispEdges');
a.selectAll('line, path')
.style('fill', 'none')
.style('stroke', '#000');
}
constraintsOrdered.forEach(function (constraint, i) {
var scale, xScale, yScale, ind1, ind2, distances, val1, val2;
constraint.nodeMap = {};
constraint.index = i;
if (constraint.type === 'x') {
scale = d3.scale.linear()
.domain(d3.extent(that.options.data, constraint.accessor))
.range(constraint.xRange);
constraint.sizeScale = d3.scale.sqrt()
.domain(d3.extent(that.options.data, constraint.accessor))
.range([2, 20]);
constraint.constrain = function (d) {
d.x = scale(constraint.accessor(d.data));
};
axis = d3.svg.axis().orient('top').scale(scale);
that.legends.append('g').attr('transform', 'translate(0,20)').call(axis).call(styleAxis);
} else if (constraint.type === 'y') {
scale = d3.scale.linear()
.domain(d3.extent(that.options.data, constraint.accessor))
.range(constraint.yRange);
constraint.sizeScale = d3.scale.sqrt()
.domain(d3.extent(that.options.data, constraint.accessor))
.range([2, 20]);
constraint.constrain = function (d) {
d.y = scale(constraint.accessor(d.data));
};
axis = d3.svg.axis().orient('left').scale(scale);
that.legends.append('g').attr('transform', 'translate(20,0)').call(axis).call(styleAxis);
} else if (constraint.type === 'linex') {
scale = d3.scale.linear()
.domain(d3.extent(that.options.data, constraint.accessor))
.range(xRange);
constraint.sizeScale = d3.scale.sqrt()
.domain(d3.extent(that.options.data, constraint.accessor))
.range([2, 20]);
constraint.constrain = function (d) {
d.x = scale(constraint.accessor(d.data));
d.y = constraint.yPosition;
};
axis = d3.svg.axis().orient('top').scale(scale);
that.legends.append('g').attr('transform', 'translate(0,' + constraint.yPosition + ')').call(axis).call(styleAxis);
} else if (constraint.type === 'liney') {
scale = d3.scale.linear()
.domain(d3.extent(that.options.data, constraint.accessor))
.range(yRange);
constraint.sizeScale = d3.scale.sqrt()
.domain(d3.extent(that.options.data, constraint.accessor))
.range([2, 20]);
constraint.constrain = function (d) {
d.x = constraint.xPosition;
d.y = scale(constraint.accessor(d.data));
};
axis = d3.svg.axis().orient('left').scale(scale);
that.legends.append('g').attr('transform', 'translate(' + constraint.xPosition + ',0)').call(axis).call(styleAxis);
} else if (constraint.type === 'radius') {
scale = d3.scale.linear()
.domain(d3.extent(that.options.data, constraint.accessor))
.range([0, Math.min(that.options.height / 2 - padding, that.options.width / 2 - padding)]);
constraint.sizeScale = d3.scale.sqrt()
.domain(d3.extent(that.options.data, constraint.accessor))
.range([2, 20]);
constraint.constrain = function (d) {
var dx = d.x - that.options.width / 2,
dy = d.y - that.options.height / 2,
distance = Math.sqrt(dx * dx + dy * dy),
r = scale(constraint.accessor(d.data));
if (distance > 0) {
d.x = r * dx / distance + that.options.width / 2;
d.y = r * dy / distance + that.options.height / 2;
} else {
d.x = r + that.options.width / 2;
d.y = that.options.height / 2;
}
};
} else if (constraint.type === 'ordinalx') {
scale = d3.scale.ordinal()
.domain(that.options.data.map(constraint.accessor))
.rangePoints(constraint.xRange, 1);
constraint.sizeScale = d3.scale.ordinal()
.domain(that.options.data.map(constraint.accessor))
.rangePoints([2, 20], 1);
constraint.constrain = function (d) {
d.x = scale(constraint.accessor(d.data));
};
axis = d3.svg.axis().orient('top').scale(scale);
that.legends.append('g').attr('transform', 'translate(0,20)').call(axis).call(styleAxis);
} else if (constraint.type === 'ordinaly') {
scale = d3.scale.ordinal()
.domain(that.options.data.map(constraint.accessor))
.rangePoints(constraint.yRange, 1);
constraint.sizeScale = d3.scale.ordinal()
.domain(that.options.data.map(constraint.accessor))
.rangePoints([2, 20], 1);
constraint.constrain = function (d) {
d.y = scale(constraint.accessor(d.data));
};
axis = d3.svg.axis().orient('left').scale(scale);
that.legends.append('g').attr('transform', 'translate(20,0)').call(axis).call(styleAxis);
} else if (constraint.type === 'xy') {
if (constraint.xOrdinal) {
xScale = d3.scale.ordinal()
.domain(that.options.data.map(function (d) {
return constraint.accessor(d).x;
}))
.rangePoints(constraint.xRange, 1);
} else {
xScale = d3.scale.linear()
.domain(d3.extent(that.options.data, function (d) {
return constraint.accessor(d).x;
}))
.range(constraint.xRange);
}
if (constraint.yOrdinal) {
yScale = d3.scale.ordinal()
.domain(that.options.data.map(function (d) {
return constraint.accessor(d).y;
}))
.rangePoints(constraint.yRange, 1);
} else {
yScale = d3.scale.linear()
.domain(d3.extent(that.options.data, function (d) {
return constraint.accessor(d).y;
}))
.range(constraint.yRange);
}
constraint.constrain = function (d) {
d.x = xScale(constraint.accessor(d.data).x);
d.y = yScale(constraint.accessor(d.data).y);
};
constraint.sizeScale = function (d) { return 4; };
axis = d3.svg.axis().orient('top').scale(xScale);
that.legends.append('g').attr('transform', 'translate(0,60)').call(axis).call(styleAxis);
that.legends.append('text')
.attr('x', (xScale.range()[xScale.range().length - 1] + xScale.range()[0]) / 2)
.attr('y', 20)
.text(constraint.xConstraint.accessor.spec.field);
axis = d3.svg.axis().orient('left').scale(yScale);
that.legends.append('g').attr('transform', 'translate(60,0)').call(axis).call(styleAxis);
that.legends.append('text')
.attr('transform', 'translate(' + 20 + ',' + (yScale.range()[xScale.range().length - 1] + yScale.range()[0]) / 2 + ')rotate(-90)')
.text(constraint.yConstraint.accessor.spec.field);
} else if (constraint.type === 'map') {
that.mapOpacity = Math.max(that.mapOpacity, constraint.strength);
constraint.constrain = function (d) {
d.x = d.mapX;
d.y = d.mapY;
};
} else if (constraint.type === 'link') {
constraint.constrain = function () {};
// constraint.sizeScale = d3.scale.ordinal()
// .domain(that.options.data.map(constraint.accessor))
// .rangePoints([2, 20], 1);
constraint.sizeScale = d3.scale.sqrt()
.domain(d3.extent(that.options.data, constraint.accessor))
.range([2, 20]);
} else if (constraint.type === 'link-closest') {
constraint.constrain = function () {};
constraint.sizeScale = d3.scale.sqrt()
.domain(d3.extent(that.options.data, constraint.accessor))
.range([2, 20]);
distances = [];
for (ind1 = 0; ind1 < dataNodes.length; ind1 += 1) {
val1 = constraint.accessor(dataNodes[ind1].data);
for (ind2 = ind1 + 1; ind2 < dataNodes.length; ind2 += 1) {
val2 = constraint.accessor(dataNodes[ind2].data);
distances.push([ind1, ind2, Math.abs(val1 - val2)]);
}
}
distances.sort(function (a, b) { return d3.ascending(a[2], b[2]); });
for (ind1 = 0; ind1 < dataNodes.length; ind1 += 1) {
that.links.push({source: dataNodes[distances[ind1][0]], target: dataNodes[distances[ind1][1]], constraint: constraint});
}
return;
} else if (constraint.type === 'link-bin') {
(function () {
var index = [], clusters = [], clusterSize;
constraint.constrain = function () {};
constraint.sizeScale = d3.scale.sqrt()
.domain(d3.extent(that.options.data, constraint.accessor))
.range([2, 20]);
dataNodes.forEach(function (d, i) {
index.push({index: i, value: constraint.accessor(d.data)});
});
index.sort(function (a, b) { return d3.ascending(a.value, b.value); });
clusterSize = Math.ceil(dataNodes.length / 10);
index.forEach(function (d, i) {
var cluster = Math.floor(i / clusterSize);
while (cluster >= clusters.length) {
clusters.push({sum: 0, count: 0});
}
clusters[cluster].sum += d.value;
clusters[cluster].count += 1;
});
clusters.forEach(function (d, i) {
var value = d.sum / d.count;
constraint.nodeMap[i] = {value: value, constraintNode: true, constraint: constraint};
that.nodes.push(constraint.nodeMap[i]);
});
index.forEach(function (d, i) {
var clusterNode = constraint.nodeMap[Math.floor(i / clusterSize)];
that.links.push({source: dataNodes[d.index], target: clusterNode, constraint: constraint});
});
}());
return;
} else if (constraint.type === 'binx') {
scale = d3.scale.ordinal()
.domain(d3.set(that.options.data.map(constraint.accessor)).values())
.rangePoints(xRange, 1);
constraint.constrain = function (d) {
var newX = d.x;
newX /= scale.domain().length;
newX += scale(constraint.accessor(d.data)) - that.options.width / scale.domain().length / 2;
d.x = constraint.strength * newX + (1 - constraint.strength) * d.x;
};
that.nodes.forEach(function (d) {
var oldConstrain;
if (d.constraintNode && (d.constraint.type === 'ordinalx' || d.constraint.type === 'x' || d.constraint.type === 'xy' || d.constraint.type === 'linex' || d.constraint.type === 'liney')) {
oldConstrain = d.constraint.constrain;
d.constraint = {type: d.constraint.type, accessor: d.constraint.accessor, strength: d.constraint.strength};
d.constraint.constrain = function (d) {
oldConstrain(d);
constraint.constrain(d);
};
}
});
axis = d3.svg.axis().orient('top').scale(scale);
that.legends.append('g').attr('transform', 'translate(0,20)').call(axis).call(styleAxis);
return;
} else if (constraint.type === 'biny') {
scale = d3.scale.ordinal()
.domain(d3.set(that.options.data.map(constraint.accessor)).values())
.rangePoints(yRange, 1);
constraint.constrain = function (d) {
var newY = d.y;
newY /= scale.domain().length;
newY += scale(constraint.accessor(d.data)) - that.options.height / scale.domain().length / 2;
d.y = constraint.strength * newY + (1 - constraint.strength) * d.y;
};
that.nodes.forEach(function (d) {
var oldConstrain;
if (d.constraintNode && (d.constraint.type === 'ordinaly' || d.constraint.type === 'y' || d.constraint.type === 'xy' || d.constraint.type === 'linex' || d.constraint.type === 'liney')) {
oldConstrain = d.constraint.constrain;
d.constraint = {type: d.constraint.type, accessor: d.constraint.accessor, strength: d.constraint.strength};
d.constraint.constrain = function (d) {
oldConstrain(d);
constraint.constrain(d);
};
}
});
axis = d3.svg.axis().orient('left').scale(scale);
that.legends.append('g').attr('transform', 'translate(20,0)').call(axis).call(styleAxis);
return;
}
dataNodes.forEach(function (node) {
var values = constraint.accessor(node.data),
i,
distances,
value,
constraintNode;
if (!tangelo.isArray(values)) {
values = [values];
}
for (i = 0; i < values.length; i += 1) {
value = values[i];
if (!tangelo.isString(value)) {
value = JSON.stringify(value);
}
if (constraint.type === 'link') {
if (!constraint.nodeMap[value]) {
constraint.nodeMap[value] = {data: node.data, value: value, constraintNode: true, constraint: constraint};
that.nodes.push(constraint.nodeMap[value]);
}
that.links.push({source: node, target: constraint.nodeMap[value], constraint: constraint});
} else {
constraintNode = {data: node.data, value: value, constraintNode: true, constraint: constraint};
that.nodes.push(constraintNode);
that.links.push({source: node, target: constraintNode, constraint: constraint});
}
}
});
});
// Copy over x,y locations from old nodes
if (oldNodes) {
for (i = 0; i < this.nodes.length && i < oldNodes.length; i += 1) {
this.nodes[i].x = oldNodes[i].x;
this.nodes[i].y = oldNodes[i].y;
}
}
this.force
.linkDistance(this.options.linkDistance)
.linkStrength(function (link) {
return link.constraint.strength;
})
.charge(this.options.charge)
.gravity(this.options.gravity)
//.chargeDistance(20)
.theta(0.1)
.size([this.options.width, this.options.height])
.nodes(this.nodes)
.links(this.links)
.start();
this.svg.selectAll('.link').remove();
this.svg.selectAll('.node').remove();
this.link = this.svg.selectAll('.link')
.data(this.links);
colorScale = d3.scale.category10();
this.link.enter()
.append('line')
.classed('link', true)
.style('opacity', function (d) { return d.constraint.strength / 2; })
//.style('stroke', '#999')
.style('stroke', function (d) { return colorScale(d.constraint ? d.constraint.index : -1); })
.style('stroke-width', that.options.showLinks ? 1 : 0);
this.node = this.svg.selectAll('.node')
.data(this.nodes);
nodeEnter = this.node.enter()
.append('g')
.classed('node', true)
.call(this.force.drag);
nodeEnter.append('circle')
.style('stroke', '#fff')
.style('stroke-width', 0.5);
nodeEnter.append('text')
// .style('stroke', function (d) { return colorScale(d.constraint ? d.constraint.index : -1); })
// .style('stroke-width', 1.5)
.style('fill', 'black')
.text(function (d) {
if (d.constraint) {
if (d.constraint.type === 'link' ||
d.constraint.type === 'link-bin' ||
d.constraint.type === 'ordinalx' ||
d.constraint.type === 'ordinaly') {
console.log(d.value);
if (tangelo.isNumber(d.value)) {
console.log(d3.format('.2r')(d.value));
return d.constraint.accessor.spec.field + ' ' + d3.format('.2r')(d.value);
}
return d.value;
}
return '';
}
return that.options.label(d);
});
this.node
.style('opacity', function (d) { return d.constraint ? d.constraint.strength : 1; });
//.style('opacity', function (d) { return d.constraintNode ? 0 : 1; });
this.node.selectAll('circle')
.attr('r', function (d) { return d.constraintNode ? (that.options.showConstraints ? d.constraint.sizeScale(d.value) : 0) : (that.options.showPoints ? 6 : 0); })
//.style('fill', function (d) { return colorScale(d.constraint ? d.constraint.index : -1); })
.style('fill', function (d) { return d.constraint ? colorScale(d.constraint.index) : '#999'; });
this.force.on('tick', function () { that._tick.call(that); });
this.force.resume();
// this.map.trigger('draw');
},
_tick: function () {
var that = this;
$(this.element.get(0)).find('img').css('opacity', this.mapOpacity);
that.nodes.forEach(function (node) {
if (node.constraint) {
node.constraint.constrain(node);
}
});
that.link.attr('x1', function (d) { return d.source.x; })
.attr('y1', function (d) { return d.source.y; })
.attr('x2', function (d) { return d.target.x; })
.attr('y2', function (d) { return d.target.y; });
that.node.attr('transform', function (d) { return 'translate(' + d.x + ',' + d.y + ')'; });
}
});
}(window.tangelo, window.jQuery, window.d3, window.google));