+/*
+
+This file is part of Ext JS 4
+
+Copyright (c) 2011 Sencha Inc
+
+Contact: http://www.sencha.com/contact
+
+GNU General Public License Usage
+This file may be used under the terms of the GNU General Public License version 3.0 as published by the Free Software Foundation and appearing in the file LICENSE included in the packaging of this file. Please review the following information to ensure the GNU General Public License version 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
+
+If you are unsure which license is appropriate for your use, please contact the sales department at http://www.sencha.com/contact.
+
+*/
/**
* @class Ext.chart.series.Pie
* @extends Ext.chart.series.Series
- *
- * Creates a Pie Chart. A Pie Chart is a useful visualization technique to display quantitative information for different
+ *
+ * Creates a Pie Chart. A Pie Chart is a useful visualization technique to display quantitative information for different
* categories that also have a meaning as a whole.
- * As with all other series, the Pie Series must be appended in the *series* Chart array configuration. See the Chart
+ * As with all other series, the Pie Series must be appended in the *series* Chart array configuration. See the Chart
* documentation for more information. A typical configuration object for the pie series could be:
- *
- * {@img Ext.chart.series.Pie/Ext.chart.series.Pie.png Ext.chart.series.Pie chart series}
*
+ * @example
* var store = Ext.create('Ext.data.JsonStore', {
* fields: ['name', 'data1', 'data2', 'data3', 'data4', 'data5'],
* data: [
- * {'name':'metric one', 'data1':10, 'data2':12, 'data3':14, 'data4':8, 'data5':13},
- * {'name':'metric two', 'data1':7, 'data2':8, 'data3':16, 'data4':10, 'data5':3},
- * {'name':'metric three', 'data1':5, 'data2':2, 'data3':14, 'data4':12, 'data5':7},
- * {'name':'metric four', 'data1':2, 'data2':14, 'data3':6, 'data4':1, 'data5':23},
- * {'name':'metric five', 'data1':27, 'data2':38, 'data3':36, 'data4':13, 'data5':33}
+ * { 'name': 'metric one', 'data1': 10, 'data2': 12, 'data3': 14, 'data4': 8, 'data5': 13 },
+ * { 'name': 'metric two', 'data1': 7, 'data2': 8, 'data3': 16, 'data4': 10, 'data5': 3 },
+ * { 'name': 'metric three', 'data1': 5, 'data2': 2, 'data3': 14, 'data4': 12, 'data5': 7 },
+ * { 'name': 'metric four', 'data1': 2, 'data2': 14, 'data3': 6, 'data4': 1, 'data5': 23 },
+ * { 'name': 'metric five', 'data1': 27, 'data2': 38, 'data3': 36, 'data4': 13, 'data5': 33 }
* ]
* });
- *
+ *
* Ext.create('Ext.chart.Chart', {
* renderTo: Ext.getBody(),
* width: 500,
- * height: 300,
+ * height: 350,
* animate: true,
* store: store,
* theme: 'Base:gradients',
* field: 'data1',
* showInLegend: true,
* tips: {
- * trackMouse: true,
- * width: 140,
- * height: 28,
- * renderer: function(storeItem, item) {
- * //calculate and display percentage on hover
- * var total = 0;
- * store.each(function(rec) {
- * total += rec.get('data1');
- * });
- * this.setTitle(storeItem.get('name') + ': ' + Math.round(storeItem.get('data1') / total * 100) + '%');
- * }
+ * trackMouse: true,
+ * width: 140,
+ * height: 28,
+ * renderer: function(storeItem, item) {
+ * // calculate and display percentage on hover
+ * var total = 0;
+ * store.each(function(rec) {
+ * total += rec.get('data1');
+ * });
+ * this.setTitle(storeItem.get('name') + ': ' + Math.round(storeItem.get('data1') / total * 100) + '%');
+ * }
* },
* highlight: {
- * segment: {
- * margin: 20
- * }
+ * segment: {
+ * margin: 20
+ * }
* },
* label: {
* field: 'name',
* contrast: true,
* font: '18px Arial'
* }
- * }]
+ * }]
* });
- *
- * In this configuration we set `pie` as the type for the series, set an object with specific style properties for highlighting options
- * (triggered when hovering elements). We also set true to `showInLegend` so all the pie slices can be represented by a legend item.
- * We set `data1` as the value of the field to determine the angle span for each pie slice. We also set a label configuration object
- * where we set the field name of the store field to be renderer as text for the label. The labels will also be displayed rotated.
- * We set `contrast` to `true` to flip the color of the label if it is to similar to the background color. Finally, we set the font family
- * and size through the `font` parameter.
- *
+ *
+ * In this configuration we set `pie` as the type for the series, set an object with specific style properties for highlighting options
+ * (triggered when hovering elements). We also set true to `showInLegend` so all the pie slices can be represented by a legend item.
+ *
+ * We set `data1` as the value of the field to determine the angle span for each pie slice. We also set a label configuration object
+ * where we set the field name of the store field to be renderer as text for the label. The labels will also be displayed rotated.
+ *
+ * We set `contrast` to `true` to flip the color of the label if it is to similar to the background color. Finally, we set the font family
+ * and size through the `font` parameter.
+ *
* @xtype pie
*/
Ext.define('Ext.chart.series.Pie', {
/* End Definitions */
type: "pie",
-
+
alias: 'series.pie',
rad: Math.PI / 180,
highlightDuration: 150,
/**
- * @cfg {String} angleField
+ * @cfg {String} angleField (required)
* The store record field name to be used for the pie angles.
* The values bound to this field name must be positive real numbers.
- * This parameter is required.
*/
angleField: false,
* @cfg {String} lengthField
* The store record field name to be used for the pie slice lengths.
* The values bound to this field name must be positive real numbers.
- * This parameter is optional.
*/
lengthField: false,
/**
- * @cfg {Boolean|Number} donut
+ * @cfg {Boolean/Number} donut
* Whether to set the pie chart as donut chart.
* Default's false. Can be set to a particular percentage to set the radius
* of the donut chart.
* @cfg {Array} colorSet
* An array of color values which will be used, in order, as the pie slice fill colors.
*/
-
+
/**
* @cfg {Object} style
* An object containing styles for overriding series styles from Theming.
*/
style: {},
-
+
constructor: function(config) {
this.callParent(arguments);
var me = this,
}
}
});
- Ext.apply(me, config, {
+ Ext.apply(me, config, {
shadowAttributes: [{
"stroke-width": 6,
"stroke-opacity": 1,
surface.customAttributes.segment = function(opt) {
return me.getSegment(opt);
};
+ me.__excludes = me.__excludes || [];
},
-
+
//@private updates some onbefore render parameters.
initialize: function() {
var me = this,
- store = me.chart.substore || me.chart.store;
+ store = me.chart.getChartStore();
//Add yFields to be used in Legend.js
me.yField = [];
if (me.label.field) {
rad = me.rad,
cos = Math.cos,
sin = Math.sin,
- abs = Math.abs,
x = me.centerX,
y = me.centerY,
x1 = 0, x2 = 0, x3 = 0, x4 = 0,
y1 = 0, y2 = 0, y3 = 0, y4 = 0,
+ x5 = 0, y5 = 0, x6 = 0, y6 = 0,
delta = 1e-2,
- r = opt.endRho - opt.startRho,
startAngle = opt.startAngle,
endAngle = opt.endAngle,
midAngle = (startAngle + endAngle) / 2 * rad,
margin = opt.margin || 0,
- flag = abs(endAngle - startAngle) > 180,
a1 = Math.min(startAngle, endAngle) * rad,
a2 = Math.max(startAngle, endAngle) * rad,
- singleSlice = false;
+ c1 = cos(a1), s1 = sin(a1),
+ c2 = cos(a2), s2 = sin(a2),
+ cm = cos(midAngle), sm = sin(midAngle),
+ flag = 0, hsqr2 = 0.7071067811865476; // sqrt(0.5)
- x += margin * cos(midAngle);
- y += margin * sin(midAngle);
-
- x1 = x + opt.startRho * cos(a1);
- y1 = y + opt.startRho * sin(a1);
+ if (a2 - a1 < delta) {
+ return {path: ""};
+ }
- x2 = x + opt.endRho * cos(a1);
- y2 = y + opt.endRho * sin(a1);
+ if (margin !== 0) {
+ x += margin * cm;
+ y += margin * sm;
+ }
- x3 = x + opt.startRho * cos(a2);
- y3 = y + opt.startRho * sin(a2);
+ x2 = x + opt.endRho * c1;
+ y2 = y + opt.endRho * s1;
- x4 = x + opt.endRho * cos(a2);
- y4 = y + opt.endRho * sin(a2);
+ x4 = x + opt.endRho * c2;
+ y4 = y + opt.endRho * s2;
- if (abs(x1 - x3) <= delta && abs(y1 - y3) <= delta) {
- singleSlice = true;
+ if (Math.abs(x2 - x4) + Math.abs(y2 - y4) < delta) {
+ cm = hsqr2;
+ sm = -hsqr2;
+ flag = 1;
}
- //Solves mysterious clipping bug with IE
- if (singleSlice) {
+
+ x6 = x + opt.endRho * cm;
+ y6 = y + opt.endRho * sm;
+
+ // TODO(bei): It seems that the canvas engine cannot render half circle command correctly on IE.
+ // Better fix the VML engine for half circles.
+
+ if (opt.startRho !== 0) {
+ x1 = x + opt.startRho * c1;
+ y1 = y + opt.startRho * s1;
+
+ x3 = x + opt.startRho * c2;
+ y3 = y + opt.startRho * s2;
+
+ x5 = x + opt.startRho * cm;
+ y5 = y + opt.startRho * sm;
+
return {
path: [
- ["M", x1, y1],
- ["L", x2, y2],
- ["A", opt.endRho, opt.endRho, 0, +flag, 1, x4, y4],
- ["Z"]]
+ ["M", x2, y2],
+ ["A", opt.endRho, opt.endRho, 0, 0, 1, x6, y6], ["L", x6, y6],
+ ["A", opt.endRho, opt.endRho, 0, flag, 1, x4, y4], ["L", x4, y4],
+ ["L", x3, y3],
+ ["A", opt.startRho, opt.startRho, 0, flag, 0, x5, y5], ["L", x5, y5],
+ ["A", opt.startRho, opt.startRho, 0, 0, 0, x1, y1], ["L", x1, y1],
+ ["Z"]
+ ]
};
} else {
return {
path: [
- ["M", x1, y1],
- ["L", x2, y2],
- ["A", opt.endRho, opt.endRho, 0, +flag, 1, x4, y4],
- ["L", x3, y3],
- ["A", opt.startRho, opt.startRho, 0, +flag, 0, x1, y1],
- ["Z"]]
+ ["M", x, y],
+ ["L", x2, y2],
+ ["A", opt.endRho, opt.endRho, 0, 0, 1, x6, y6], ["L", x6, y6],
+ ["A", opt.endRho, opt.endRho, 0, flag, 1, x4, y4], ["L", x4, y4],
+ ["L", x, y],
+ ["Z"]
+ ]
};
}
},
startAngle = slice.startAngle,
endAngle = slice.endAngle,
donut = +me.donut,
- a1 = Math.min(startAngle, endAngle) * rad,
- a2 = Math.max(startAngle, endAngle) * rad,
- midAngle = -(a1 + (a2 - a1) / 2),
- xm = x + (item.endRho + item.startRho) / 2 * Math.cos(midAngle),
- ym = y - (item.endRho + item.startRho) / 2 * Math.sin(midAngle);
+ midAngle = -(startAngle + endAngle) * rad / 2,
+ r = (item.endRho + item.startRho) / 2,
+ xm = x + r * Math.cos(midAngle),
+ ym = y - r * Math.sin(midAngle);
item.middle = {
x: xm,
*/
drawSeries: function() {
var me = this,
- store = me.chart.substore || me.chart.store,
+ store = me.chart.getChartStore(),
group = me.group,
animate = me.chart.animate,
field = me.angleField || me.field || me.xField,
colorArrayLength = colorArrayStyle && colorArrayStyle.length || 0,
gutterX = chart.maxGutter[0],
gutterY = chart.maxGutter[1],
+ abs = Math.abs,
rendererAttributes,
shadowGroup,
shadowAttr,
path,
p,
spriteOptions, bbox;
-
+
Ext.apply(seriesStyle, me.style || {});
me.setBBox();
colorArrayStyle = me.colorSet;
colorArrayLength = colorArrayStyle.length;
}
-
+
//if not store or store is empty then there's nothing to draw
if (!store || !store.getCount()) {
return;
}
-
+
me.unHighlightItem();
me.cleanHighlights();
}
}, this);
+ totalField = totalField || 1;
store.each(function(record, i) {
if (this.__excludes && this.__excludes[i]) {
- //hidden series
- return;
- }
- value = record.get(field);
- middleAngle = angle - 360 * value / totalField / 2;
- // TODO - Put up an empty circle
- if (isNaN(middleAngle)) {
- middleAngle = 360;
- value = 1;
- totalField = 1;
+ value = 0;
+ } else {
+ value = record.get(field);
+ if (first == 0) {
+ first = 1;
+ }
}
+
// First slice
- if (!i || first == 0) {
- angle = 360 - middleAngle;
- me.firstAngle = angle;
- middleAngle = angle - 360 * value / totalField / 2;
+ if (first == 1) {
+ first = 2;
+ me.firstAngle = angle = 360 * value / totalField / 2;
+ for (j = 0; j < i; j++) {
+ slices[j].startAngle = slices[j].endAngle = me.firstAngle;
+ }
}
+
endAngle = angle - 360 * value / totalField;
slice = {
series: me,
slice.rho = me.radius;
}
slices[i] = slice;
- if((slice.startAngle % 360) == (slice.endAngle % 360)) {
- slice.startAngle -= 0.0001;
- }
angle = endAngle;
- first++;
}, me);
-
//do all shadows first.
if (enableShadows) {
for (i = 0, ln = slices.length; i < ln; i++) {
- if (this.__excludes && this.__excludes[i]) {
- //hidden series
- continue;
- }
slice = slices[i];
slice.shadowAttrs = [];
for (j = 0, rhoAcum = 0, shadows = []; j < layers; j++) {
rho: slice.rho,
startRho: rhoAcum + (deltaRho * donut / 100),
endRho: rhoAcum + deltaRho
- }
+ },
+ hidden: !slice.value && (slice.startAngle % 360) == (slice.endAngle % 360)
};
//create shadows
for (shindex = 0, shadows = []; shindex < lnsh; shindex++) {
to: shadowAttr
});
} else {
- shadowAttr = me.renderer(shadow, store.getAt(i), Ext.apply(shadowAttr, {
- hidden: false
- }), i, store);
+ shadowAttr = me.renderer(shadow, store.getAt(i), shadowAttr, i, store);
shadow.setAttributes(shadowAttr, true);
}
shadows.push(shadow);
}
//do pie slices after.
for (i = 0, ln = slices.length; i < ln; i++) {
- if (this.__excludes && this.__excludes[i]) {
- //hidden series
- continue;
- }
slice = slices[i];
for (j = 0, rhoAcum = 0; j < layers; j++) {
sprite = group.getAt(i * layers + j);
rho: slice.rho,
startRho: rhoAcum + (deltaRho * donut / 100),
endRho: rhoAcum + deltaRho
- }
+ },
+ hidden: (!slice.value && (slice.startAngle % 360) == (slice.endAngle % 360))
}, Ext.apply(seriesStyle, colorArrayStyle && { fill: colorArrayStyle[(layers > 1? j : i) % colorArrayLength] } || {}));
item = Ext.apply({},
rendererAttributes.segment, {
rhoAcum += deltaRho;
}
}
-
+
// Hide unused bars
ln = group.getCount();
for (i = 0; i < ln; i++) {
centerY = me.centerY,
middle = item.middle,
endLabelStyle = Ext.apply(me.seriesLabelStyle || {}, config || {});
-
+
return me.chart.surface.add(Ext.apply({
'type': 'text',
'text-anchor': 'middle',
theta = Math.atan2(y, x || 1),
dg = theta * 180 / Math.PI,
prevDg;
-
+ if (this.__excludes && this.__excludes[i]) {
+ opt.hidden = true;
+ }
function fixAngle(a) {
- if (a < 0) a += 360;
+ if (a < 0) {
+ a += 360;
+ }
return a % 360;
}
}
//ensure the object has zero translation
opt.translate = {
- x: 0, y: 0
+ x: 0, y: 0
};
if (animate && !resizing && (display != 'rotate' || prevDg != null)) {
me.onAnimate(label, {
startAngle = item.startAngle,
endAngle = item.endAngle,
rho = Math.sqrt(dx * dx + dy * dy),
- angle = Math.atan2(y - cy, x - cx) / me.rad + 360;
-
+ angle = Math.atan2(y - cy, x - cx) / me.rad;
+
// normalize to the same range of angles created by drawSeries
if (angle > me.firstAngle) {
angle -= 360;
return (angle <= startAngle && angle > endAngle
&& rho >= item.startRho && rho <= item.endRho);
},
-
+
// @private hides all elements in the series.
hideAll: function() {
var i, l, shadow, shadows, sh, lsh, sprite;
this.drawSeries();
}
},
-
+
// @private shows all elements in the series.
showAll: function() {
if (!isNaN(this._index)) {
var me = this,
rad = me.rad;
item = item || this.items[this._index];
-
+
//TODO(nico): sometimes in IE itemmouseover is triggered
//twice without triggering itemmouseout in between. This
//fixes the highlighting bug. Eventually, events should be
//changed to trigger one itemmouseout between two itemmouseovers.
this.unHighlightItem();
-
+
if (!item || item.sprite && item.sprite._animating) {
return;
}
if (Math.abs(y) < 1e-10) {
y = 0;
}
-
+
if (animate) {
label.stopAnimation();
label.animate({
},
/**
- * un-highlights the specified item. If no item is provided it will un-highlight the entire series.
+ * Un-highlights the specified item. If no item is provided it will un-highlight the entire series.
* @param item {Object} Info about the item; same format as returned by #getItemForPoint
*/
unHighlightItem: function() {
}
me.callParent(arguments);
},
-
+
/**
* Returns the color of the series (to be displayed as color for the series legend item).
* @param item {Object} Info about the item; same format as returned by #getItemForPoint
*/
getLegendColor: function(index) {
var me = this;
- return me.colorArrayStyle[index % me.colorArrayStyle.length];
+ return (me.colorSet && me.colorSet[index % me.colorSet.length]) || me.colorArrayStyle[index % me.colorArrayStyle.length];
}
});
+
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