treemap-datalet.html
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<!--
@license
The MIT License (MIT)
Copyright (c) 2015 Dipartimento di Informatica - Università di Salerno - Italy
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-->
<!--
* Developed by :
* ROUTE-TO-PA Project - grant No 645860. - www.routetopa.eu
*
-->
<link rel="import" href="../base-ajax-json-jsonpath-datalet/base-ajax-json-jsonpath-datalet.html">
<!--
`treemap-datalet` is a treemap datalet based on d3js treemap project http://bl.ocks.org/mbostock/4063582
A treemap recursively subdivides area into rectangles; the area of any node in the tree corresponds to its value.
Example:
<treemap-datalet
data-url="http://ckan.routetopa.eu/api/action/datastore_search?resource_id=#"
fields='["field1","field2"]'>
</treemap-datalet>
@element barchart-datalet
@status v0.1
@demo demo/index.html
@group datalets
-->
<dom-module id="treemap-datalet">
<template>
<style is="custom-style">
:host ::content h6 {
color: red;
}
:host ::content #treemap_placeholder {
width: 100%;
height: 70%;
min-height: 500px;
background: #ddd;
}
:host ::content text {
pointer-events: none;
}
:host ::content .grandparent text {
font-weight: bold;
}
:host ::content rect {
fill: none;
stroke: #fff;
}
:host ::content rect.parent,
.grandparent rect {
stroke-width: 2px;
}
:host ::content .grandparent rect {
fill: orange;
}
:host ::content .grandparent:hover rect {
fill: #ee9700;
}
:host ::content .children rect.parent,
.grandparent rect {
cursor: pointer;
}
:host ::content .children rect.parent {
fill: #bbb;
fill-opacity: .5;
}
:host ::content .children:hover rect.child {
fill: #bbb;
}
</style>
<div id="treemap_placeholder"></div>
<base-ajax-json-jsonpath-datalet data-url="{{dataUrl}}" fields="{{fields}}"></base-ajax-json-jsonpath-datalet>
</template>
<script src="../shared_js/d3.js"></script>
<script src="js/buildtreemap.js"></script>
<script>
var TreemapBehavior = {
map : {
name : "",
children : []
},
transformData: function(e)
{
var treemapData = [];
TreemapBehavior.map.name = this._component.name;
if(this.data.length > 1) {
for (i = 0; i < this.data.length; i++) {
var propName = this.data[i].name;
for (var j = 0; j < this.data[i].data.length; j++) {
if (i == 0) treemapData[j] = {};
currObj = {};
currObj[propName] = this.data[i].data[j];
jQuery.extend(treemapData[j], currObj);
}
}
}else{
treemapData = this.data[0].data;
}
this.map.children = [];
for(var i = 0; i < treemapData.length; i++){
this.checkAggragationField(treemapData[i], this._component.fields.length , this._component.fields.length - 1);
}
var json = JSON.stringify(this.map);
},
findChild: function(child, category){
var children = child.children;
for (var i=0; i<children.length; i++) {
if (children[i].name == category)
return children[i];
}
var nchild = {name : category , children : []};
children.push(nchild);
return nchild;
},
checkAggragationField: function(object, levels, value_index){
var curchild = this.map;
var keys = Object.keys(object);
for(var level= 0; level < levels; level++){
var child = this.findChild(curchild, object[keys[level]]);
curchild = child;
}
if (curchild.value === undefined)
curchild.value = 0;
var value = curchild.value + parseFloat(object[keys[value_index]]);
curchild.children = null;
curchild.value = value;
},
presentData: function(){
build(this.map, "treemap_placeholder");
}
};
Polymer({
is : 'treemap-datalet' ,
properties: {
/**
* It's the name for treemap
*
* @attribute name
* @type String
* @default ''
*/
name: {
type: String,
value: ""
},
/**
* It's the component behavior
*
* @attribute behavior
* @type Object
* @default {}
*/
behavior : {
type : Object,
value : {}
}
},
ready: function(){
this.behavior = $.extend(true, {}, BaseDataletBehavior, WorkcycleBehavior, AjaxJsonJsonPathBehavior, TreemapBehavior);
this.async(function(){this.behavior.init(this)},1);
}
});
</script>
</dom-module>