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[chart] Aggregation chart for pie/percantage

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This commit is contained in:
Prateeksha Singh 2018-03-05 16:13:32 +05:30
parent 59ad41427f
commit fb61523b1a
17 changed files with 328 additions and 357 deletions
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352
dist/frappe-charts.esm.js vendored
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@ -202,10 +202,30 @@ class SvgTip {
}
}
/**
* Returns the value of a number upto 2 decimal places.
* @param {Number} d Any number
*/
const VERT_SPACE_OUTSIDE_BASE_CHART = 40;
const TRANSLATE_Y_BASE_CHART = 20;
const LEFT_MARGIN_BASE_CHART = 60;
const RIGHT_MARGIN_BASE_CHART = 40;
const Y_AXIS_MARGIN = 60;
const INIT_CHART_UPDATE_TIMEOUT = 700;
const CHART_POST_ANIMATE_TIMEOUT = 400;
const DEFAULT_AXIS_CHART_TYPE = 'line';
const AXIS_DATASET_CHART_TYPES = ['line', 'bar'];
const BAR_CHART_SPACE_RATIO = 0.5;
const MIN_BAR_PERCENT_HEIGHT = 0.01;
const LINE_CHART_DOT_SIZE = 4;
const DOT_OVERLAY_SIZE_INCR = 4;
const DEFAULT_CHAR_WIDTH = 8;
// Universal constants
const ANGLE_RATIO = Math.PI / 180;
const FULL_ANGLE = 360;
function floatTwo(d) {
return parseFloat(d.toFixed(2));
}
@ -248,6 +268,15 @@ function getStringWidth(string, charWidth) {
return (string+"").length * charWidth;
}
function getPositionByAngle(angle, radius) {
return {
x:Math.sin(angle * ANGLE_RATIO) * radius,
y:Math.cos(angle * ANGLE_RATIO) * radius,
};
}
function getBarHeightAndYAttr(yTop, zeroLine) {
let height, y;
if (yTop <= zeroLine) {
@ -372,26 +401,6 @@ function animatePath(paths, newXList, newYList, zeroLine) {
return pathComponents;
}
const VERT_SPACE_OUTSIDE_BASE_CHART = 40;
const TRANSLATE_Y_BASE_CHART = 20;
const LEFT_MARGIN_BASE_CHART = 60;
const RIGHT_MARGIN_BASE_CHART = 40;
const Y_AXIS_MARGIN = 60;
const INIT_CHART_UPDATE_TIMEOUT = 700;
const CHART_POST_ANIMATE_TIMEOUT = 400;
const DEFAULT_AXIS_CHART_TYPE = 'line';
const AXIS_DATASET_CHART_TYPES = ['line', 'bar'];
const BAR_CHART_SPACE_RATIO = 0.5;
const MIN_BAR_PERCENT_HEIGHT = 0.01;
const LINE_CHART_DOT_SIZE = 4;
const DOT_OVERLAY_SIZE_INCR = 4;
const DEFAULT_CHAR_WIDTH = 8;
const AXIS_TICK_LENGTH = 6;
const LABEL_MARGIN = 4;
const FONT_SIZE = 10;
@ -489,6 +498,16 @@ function makePath(pathStr, className='', stroke='none', fill='none') {
});
}
function makeArcPathStr(startPosition, endPosition, center, radius, clockWise=1){
let [arcStartX, arcStartY] = [center.x + startPosition.x, center.y + startPosition.y];
let [arcEndX, arcEndY] = [center.x + endPosition.x, center.y + endPosition.y];
return `M${center.x} ${center.y}
L${arcStartX} ${arcStartY}
A ${radius} ${radius} 0 0 ${clockWise ? 1 : 0}
${arcEndX} ${arcEndY} z`;
}
function makeGradient(svgDefElem, color, lighter = false) {
let gradientId ='path-fill-gradient' + '-' + color + '-' +(lighter ? 'lighter' : 'default');
let gradientDef = renderVerticalGradient(svgDefElem, gradientId);
@ -917,7 +936,7 @@ const PRESET_COLOR_MAP = {
};
const DEFAULT_COLORS = ['light-blue', 'blue', 'violet', 'red', 'orange',
'yellow', 'green', 'light-green', 'purple', 'magenta'];
'yellow', 'green', 'light-green', 'purple', 'magenta', 'light-grey', 'dark-grey'];
function limitColor(r){
if (r > 255) return 255;
@ -986,13 +1005,11 @@ function getDifferentChart(type, current_type, parent, args) {
// Okay, this is anticlimactic
// this function will need to actually be 'changeChartType(type)'
// that will update only the required elements, but for now ...
return new Chart(parent, {
title: args.title,
data: args.data,
type: type,
height: args.height,
colors: useColor ? args.colors : undefined
});
args.type = type;
args.colors = useColor ? args.colors : undefined;
return new Chart(parent, args);
}
// Leveraging SMIL Animations
@ -1384,14 +1401,84 @@ class BaseChart {
}
}
class PercentageChart extends BaseChart {
class AggregationChart extends BaseChart {
constructor(parent, args) {
super(parent, args);
}
configure(args) {
super.configure(args);
this.config.maxSlices = args.maxSlices || 20;
this.config.maxLegendPoints = args.maxLegendPoints || 20;
}
calc() {
let s = this.state;
let maxSlices = this.config.maxSlices;
s.sliceTotals = [];
let allTotals = this.data.labels.map((label, i) => {
let total = 0;
this.data.datasets.map(e => {
total += e.values[i];
});
return [total, label];
}).filter(d => { return d[0] > 0; }); // keep only positive results
let totals = allTotals;
if(allTotals.length > maxSlices) {
// Prune and keep a grey area for rest as per maxSlices
allTotals.sort((a, b) => { return b[0] - a[0]; });
totals = allTotals.slice(0, maxSlices-1);
let remaining = allTotals.slice(maxSlices-1);
let sumOfRemaining = 0;
remaining.map(d => {sumOfRemaining += d[0];});
totals.push([sumOfRemaining, 'Rest']);
this.colors[maxSlices-1] = 'grey';
}
this.labels = [];
totals.map(d => {
s.sliceTotals.push(d[0]);
this.labels.push(d[1]);
});
}
render() { }
bindTooltip() { }
renderLegend() {
let s = this.state;
this.legendTotals = s.sliceTotals.slice(0, this.config.maxLegendPoints);
let x_values = this.formatted_labels && this.formatted_labels.length > 0
? this.formatted_labels : this.labels;
this.legendTotals.map((d, i) => {
if(d) {
let stats = $.create('div', {
className: 'stats',
inside: this.statsWrapper
});
stats.innerHTML = `<span class="indicator">
<i style="background: ${this.colors[i]}"></i>
<span class="text-muted">${x_values[i]}:</span>
${d}
</span>`;
}
});
}
}
class PercentageChart extends AggregationChart {
constructor(parent, args) {
super(parent, args);
this.type = 'percentage';
this.max_slices = 10;
this.max_legend_points = 6;
this.setup();
}
@ -1420,9 +1507,10 @@ class PercentageChart extends BaseChart {
}
render() {
this.grand_total = this.sliceTotals.reduce((a, b) => a + b, 0);
let s = this.state;
this.grand_total = s.sliceTotals.reduce((a, b) => a + b, 0);
this.slices = [];
this.sliceTotals.map((total, i) => {
s.sliceTotals.map((total, i) => {
let slice = $.create('div', {
className: `progress-bar`,
inside: this.percentageBar,
@ -1435,42 +1523,8 @@ class PercentageChart extends BaseChart {
});
}
calc() {
this.sliceTotals = [];
let all_totals = this.data.labels.map((d, i) => {
let total = 0;
this.data.datasets.map(e => {
total += e.values[i];
});
return [total, d];
}).filter(d => { return d[0] > 0; }); // keep only positive results
let totals = all_totals;
if(all_totals.length > this.max_slices) {
all_totals.sort((a, b) => { return b[0] - a[0]; });
totals = all_totals.slice(0, this.max_slices-1);
let others = all_totals.slice(this.max_slices-1);
let sum_of_others = 0;
others.map(d => {sum_of_others += d[0];});
totals.push([sum_of_others, 'Rest']);
this.colors[this.max_slices-1] = 'grey';
}
this.labels = [];
totals.map(d => {
this.sliceTotals.push(d[0]);
this.labels.push(d[1]);
});
this.legend_totals = this.sliceTotals.slice(0, this.max_legend_points);
}
bindTooltip() {
// this.slices.map((slice, i) => {
// slice.addEventListener('mouseenter', () => {
// let g_off = getOffset(this.chartWrapper), p_off = getOffset(slice);
@ -1479,114 +1533,57 @@ class PercentageChart extends BaseChart {
// let y = p_off.top - g_off.top - 6;
// let title = (this.formatted_labels && this.formatted_labels.length>0
// ? this.formatted_labels[i] : this.labels[i]) + ': ';
// let percent = (this.sliceTotals[i]*100/this.grand_total).toFixed(1);
// let percent = (s.sliceTotals[i]*100/this.grand_total).toFixed(1);
// this.tip.set_values(x, y, title, percent + "%");
// this.tip.show_tip();
// });
// });
}
renderLegend() {
// let x_values = this.formatted_labels && this.formatted_labels.length > 0
// ? this.formatted_labels : this.labels;
// this.legend_totals.map((d, i) => {
// if(d) {
// let stats = $.create('div', {
// className: 'stats',
// inside: this.statsWrapper
// });
// stats.innerHTML = `<span class="indicator">
// <i style="background: ${this.colors[i]}"></i>
// <span class="text-muted">${x_values[i]}:</span>
// ${d}
// </span>`;
// }
// });
}
}
const ANGLE_RATIO = Math.PI / 180;
const FULL_ANGLE = 360;
class PieChart extends BaseChart {
class PieChart extends AggregationChart {
constructor(parent, args) {
super(parent, args);
this.type = 'pie';
this.elements_to_animate = null;
this.hoverRadio = args.hoverRadio || 0.1;
this.max_slices = 10;
this.max_legend_points = 6;
this.isAnimate = false;
this.startAngle = args.startAngle || 0;
this.clockWise = args.clockWise || false;
this.mouseMove = this.mouseMove.bind(this);
this.mouseLeave = this.mouseLeave.bind(this);
this.setup();
}
configure(args) {
super.configure(args);
this.mouseMove = this.mouseMove.bind(this);
this.mouseLeave = this.mouseLeave.bind(this);
}
calc() {
this.centerX = this.width / 2;
this.centerY = this.height / 2;
this.radius = (this.height > this.width ? this.centerX : this.centerY);
this.slice_totals = [];
let all_totals = this.data.labels.map((d, i) => {
let total = 0;
this.data.datasets.map(e => {
total += e.values[i];
});
return [total, d];
}).filter(d => { return d[0] > 0; }); // keep only positive results
let totals = all_totals;
if(all_totals.length > this.max_slices) {
all_totals.sort((a, b) => { return b[0] - a[0]; });
totals = all_totals.slice(0, this.max_slices-1);
let others = all_totals.slice(this.max_slices-1);
let sum_of_others = 0;
others.map(d => {sum_of_others += d[0];});
totals.push([sum_of_others, 'Rest']);
this.colors[this.max_slices-1] = 'grey';
}
this.labels = [];
totals.map(d => {
this.slice_totals.push(d[0]);
this.labels.push(d[1]);
});
this.legend_totals = this.slice_totals.slice(0, this.max_legend_points);
}
static getPositionByAngle(angle,radius) {
return {
x:Math.sin(angle * ANGLE_RATIO) * radius,
y:Math.cos(angle * ANGLE_RATIO) * radius,
super.calc();
this.center = {
x: this.width / 2,
y: this.height / 2
};
this.radius = (this.height > this.width ? this.center.x : this.center.y);
}
makeArcPath(startPosition,endPosition){
const{centerX,centerY,radius,clockWise} = this;
return `M${centerX} ${centerY} L${centerX+startPosition.x} ${centerY+startPosition.y} A ${radius} ${radius} 0 0 ${clockWise ? 1 : 0} ${centerX+endPosition.x} ${centerY+endPosition.y} z`;
}
render(init) {
const{radius,clockWise} = this;
this.grand_total = this.slice_totals.reduce((a, b) => a + b, 0);
this.grand_total = this.state.sliceTotals.reduce((a, b) => a + b, 0);
const prevSlicesProperties = this.slicesProperties || [];
this.slices = [];
this.elements_to_animate = [];
this.slicesProperties = [];
let curAngle = 180 - this.startAngle;
this.slice_totals.map((total, i) => {
this.state.sliceTotals.map((total, i) => {
const startAngle = curAngle;
const originDiffAngle = (total / this.grand_total) * FULL_ANGLE;
const diffAngle = clockWise ? -originDiffAngle : originDiffAngle;
const endAngle = curAngle = curAngle + diffAngle;
const startPosition = PieChart.getPositionByAngle(startAngle,radius);
const endPosition = PieChart.getPositionByAngle(endAngle,radius);
const startPosition = getPositionByAngle(startAngle, radius);
const endPosition = getPositionByAngle(endAngle, radius);
const prevProperty = init && prevSlicesProperties[i];
let curStart,curEnd;
if(init){
@ -1596,7 +1593,7 @@ class PieChart extends BaseChart {
curStart = startPosition;
curEnd = endPosition;
}
const curPath = this.makeArcPath(curStart,curEnd);
const curPath = makeArcPathStr(curStart, curEnd, this.center, this.radius, this.clockWise);
let slice = makePath(curPath, 'pie-path', 'none', this.colors[i]);
slice.style.transition = 'transform .3s;';
this.drawArea.appendChild(slice);
@ -1609,42 +1606,44 @@ class PieChart extends BaseChart {
total: this.grand_total,
startAngle,
endAngle,
angle:diffAngle
angle: diffAngle
});
if(init){
this.elements_to_animate.push([{unit: slice, array: this.slices, index: this.slices.length - 1},
{d:this.makeArcPath(startPosition,endPosition)},
this.elements_to_animate.push([slice,
{d: makeArcPathStr(startPosition, endPosition, this.center, this.radius, this.clockWise)},
650, "easein",null,{
d:curPath
}]);
}
});
if(init){
runSMILAnimation(this.chartWrapper, this.svg, this.elements_to_animate);
}
// if(init){
// runSMILAnimation(this.chartWrapper, this.svg, this.elements_to_animate);
// }
}
calTranslateByAngle(property){
const{radius,hoverRadio} = this;
const position = PieChart.getPositionByAngle(property.startAngle+(property.angle / 2),radius);
const position = getPositionByAngle(property.startAngle+(property.angle / 2),radius);
return `translate3d(${(position.x) * hoverRadio}px,${(position.y) * hoverRadio}px,0)`;
}
hoverSlice(path,i,flag,e){
if(!path) return;
const color = this.colors[i];
if(flag){
transform(path,this.calTranslateByAngle(this.slicesProperties[i]));
path.style.fill = lightenDarkenColor(color,50);
if(flag) {
transform(path, this.calTranslateByAngle(this.slicesProperties[i]));
path.style.fill = lightenDarkenColor(color, 50);
let g_off = getOffset(this.svg);
let x = e.pageX - g_off.left + 10;
let y = e.pageY - g_off.top - 10;
let title = (this.formatted_labels && this.formatted_labels.length>0
let title = (this.formatted_labels && this.formatted_labels.length > 0
? this.formatted_labels[i] : this.labels[i]) + ': ';
let percent = (this.slice_totals[i]*100/this.grand_total).toFixed(1);
let percent = (this.state.sliceTotals[i]*100/this.grand_total).toFixed(1);
this.tip.set_values(x, y, title, percent + "%");
this.tip.show_tip();
}else{
} else {
transform(path,'translate3d(0,0,0)');
this.tip.hide_tip();
path.style.fill = color;
@ -1672,26 +1671,6 @@ class PieChart extends BaseChart {
// this.drawArea.addEventListener('mousemove',this.mouseMove);
// this.drawArea.addEventListener('mouseleave',this.mouseLeave);
}
renderLegend() {
let x_values = this.formatted_labels && this.formatted_labels.length > 0
? this.formatted_labels : this.labels;
this.legend_totals.map((d, i) => {
const color = this.colors[i];
if(d) {
let stats = $.create('div', {
className: 'stats',
inside: this.statsWrapper
});
stats.innerHTML = `<span class="indicator">
<i style="background-color:${color};"></i>
<span class="text-muted">${x_values[i]}:</span>
${d}
</span>`;
}
});
}
}
// Playing around with dates
@ -2711,7 +2690,8 @@ class AxisChart extends BaseChart {
this.calcYAxisParameters(this.getAllYValues(), this.type === 'line');
}
calcXPositions(s=this.state) {
calcXPositions() {
let s = this.state;
let labels = this.data.labels;
s.datasetLength = labels.length;

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dist/frappe-charts.min.cjs.js vendored
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docs/assets/js/frappe-charts.min.js vendored
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docs/assets/js/index.js
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@ -176,6 +176,8 @@ let type_chart = new Chart("#chart-types", {
xAxisMode: 'tick',
yAxisMode: 'span',
valuesOverPoints: 1,
// maxLegendPoints: 6,
// maxSlices: 3,
isNavigable: 1,
barOptions: {
stacked: 1

75
src/js/charts/AggregationChart.js Normal file
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@ -0,0 +1,75 @@
import BaseChart from './BaseChart';
import { $, getOffset } from '../utils/dom';
export default class AggregationChart extends BaseChart {
constructor(parent, args) {
super(parent, args);
}
configure(args) {
super.configure(args);
this.config.maxSlices = args.maxSlices || 20;
this.config.maxLegendPoints = args.maxLegendPoints || 20;
}
calc() {
let s = this.state;
let maxSlices = this.config.maxSlices;
s.sliceTotals = [];
let allTotals = this.data.labels.map((label, i) => {
let total = 0;
this.data.datasets.map(e => {
total += e.values[i];
});
return [total, label];
}).filter(d => { return d[0] > 0; }); // keep only positive results
let totals = allTotals;
if(allTotals.length > maxSlices) {
// Prune and keep a grey area for rest as per maxSlices
allTotals.sort((a, b) => { return b[0] - a[0]; });
totals = allTotals.slice(0, maxSlices-1);
let remaining = allTotals.slice(maxSlices-1);
let sumOfRemaining = 0;
remaining.map(d => {sumOfRemaining += d[0];});
totals.push([sumOfRemaining, 'Rest']);
this.colors[maxSlices-1] = 'grey';
}
this.labels = [];
totals.map(d => {
s.sliceTotals.push(d[0]);
this.labels.push(d[1]);
});
}
render() { }
bindTooltip() { }
renderLegend() {
let s = this.state;
this.legendTotals = s.sliceTotals.slice(0, this.config.maxLegendPoints);
let x_values = this.formatted_labels && this.formatted_labels.length > 0
? this.formatted_labels : this.labels;
this.legendTotals.map((d, i) => {
if(d) {
let stats = $.create('div', {
className: 'stats',
inside: this.statsWrapper
});
stats.innerHTML = `<span class="indicator">
<i style="background: ${this.colors[i]}"></i>
<span class="text-muted">${x_values[i]}:</span>
${d}
</span>`;
}
});
}
}

3
src/js/charts/AxisChart.js
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@ -56,7 +56,8 @@ export default class AxisChart extends BaseChart {
this.calcYAxisParameters(this.getAllYValues(), this.type === 'line');
}
calcXPositions(s=this.state) {
calcXPositions() {
let s = this.state;
let labels = this.data.labels;
s.datasetLength = labels.length;

68
src/js/charts/PercentageChart.js
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@ -1,14 +1,11 @@
import BaseChart from './BaseChart';
import AggregationChart from './AggregationChart';
import { $, getOffset } from '../utils/dom';
export default class PercentageChart extends BaseChart {
export default class PercentageChart extends AggregationChart {
constructor(parent, args) {
super(parent, args);
this.type = 'percentage';
this.max_slices = 10;
this.max_legend_points = 6;
this.setup();
}
@ -37,9 +34,10 @@ export default class PercentageChart extends BaseChart {
}
render() {
this.grand_total = this.sliceTotals.reduce((a, b) => a + b, 0);
let s = this.state;
this.grand_total = s.sliceTotals.reduce((a, b) => a + b, 0);
this.slices = [];
this.sliceTotals.map((total, i) => {
s.sliceTotals.map((total, i) => {
let slice = $.create('div', {
className: `progress-bar`,
inside: this.percentageBar,
@ -52,42 +50,8 @@ export default class PercentageChart extends BaseChart {
});
}
calc() {
this.sliceTotals = [];
let all_totals = this.data.labels.map((d, i) => {
let total = 0;
this.data.datasets.map(e => {
total += e.values[i];
});
return [total, d];
}).filter(d => { return d[0] > 0; }); // keep only positive results
let totals = all_totals;
if(all_totals.length > this.max_slices) {
all_totals.sort((a, b) => { return b[0] - a[0]; });
totals = all_totals.slice(0, this.max_slices-1);
let others = all_totals.slice(this.max_slices-1);
let sum_of_others = 0;
others.map(d => {sum_of_others += d[0];});
totals.push([sum_of_others, 'Rest']);
this.colors[this.max_slices-1] = 'grey';
}
this.labels = [];
totals.map(d => {
this.sliceTotals.push(d[0]);
this.labels.push(d[1]);
});
this.legend_totals = this.sliceTotals.slice(0, this.max_legend_points);
}
bindTooltip() {
let s = this.state;
// this.slices.map((slice, i) => {
// slice.addEventListener('mouseenter', () => {
// let g_off = getOffset(this.chartWrapper), p_off = getOffset(slice);
@ -96,29 +60,11 @@ export default class PercentageChart extends BaseChart {
// let y = p_off.top - g_off.top - 6;
// let title = (this.formatted_labels && this.formatted_labels.length>0
// ? this.formatted_labels[i] : this.labels[i]) + ': ';
// let percent = (this.sliceTotals[i]*100/this.grand_total).toFixed(1);
// let percent = (s.sliceTotals[i]*100/this.grand_total).toFixed(1);
// this.tip.set_values(x, y, title, percent + "%");
// this.tip.show_tip();
// });
// });
}
renderLegend() {
// let x_values = this.formatted_labels && this.formatted_labels.length > 0
// ? this.formatted_labels : this.labels;
// this.legend_totals.map((d, i) => {
// if(d) {
// let stats = $.create('div', {
// className: 'stats',
// inside: this.statsWrapper
// });
// stats.innerHTML = `<span class="indicator">
// <i style="background: ${this.colors[i]}"></i>
// <span class="text-muted">${x_values[i]}:</span>
// ${d}
// </span>`;
// }
// });
}
}

134
src/js/charts/PieChart.js
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@ -1,89 +1,53 @@
import BaseChart from './BaseChart';
import AggregationChart from './AggregationChart';
import { $, getOffset } from '../utils/dom';
import { makePath } from '../utils/draw';
import { getPositionByAngle } from '../utils/helpers';
import { makePath, makeArcPathStr } from '../utils/draw';
import { lightenDarkenColor } from '../utils/colors';
import { runSMILAnimation, transform } from '../utils/animation';
const ANGLE_RATIO = Math.PI / 180;
const FULL_ANGLE = 360;
import { transform } from '../utils/animation';
import { FULL_ANGLE } from '../utils/constants';
export default class PieChart extends BaseChart {
export default class PieChart extends AggregationChart {
constructor(parent, args) {
super(parent, args);
this.type = 'pie';
this.elements_to_animate = null;
this.hoverRadio = args.hoverRadio || 0.1;
this.max_slices = 10;
this.max_legend_points = 6;
this.isAnimate = false;
this.startAngle = args.startAngle || 0;
this.clockWise = args.clockWise || false;
this.mouseMove = this.mouseMove.bind(this);
this.mouseLeave = this.mouseLeave.bind(this);
this.setup();
}
configure(args) {
super.configure(args);
this.mouseMove = this.mouseMove.bind(this);
this.mouseLeave = this.mouseLeave.bind(this);
}
calc() {
this.centerX = this.width / 2;
this.centerY = this.height / 2;
this.radius = (this.height > this.width ? this.centerX : this.centerY);
this.slice_totals = [];
let all_totals = this.data.labels.map((d, i) => {
let total = 0;
this.data.datasets.map(e => {
total += e.values[i];
});
return [total, d];
}).filter(d => { return d[0] > 0; }); // keep only positive results
let totals = all_totals;
if(all_totals.length > this.max_slices) {
all_totals.sort((a, b) => { return b[0] - a[0]; });
totals = all_totals.slice(0, this.max_slices-1);
let others = all_totals.slice(this.max_slices-1);
let sum_of_others = 0;
others.map(d => {sum_of_others += d[0];});
totals.push([sum_of_others, 'Rest']);
this.colors[this.max_slices-1] = 'grey';
super.calc();
this.center = {
x: this.width / 2,
y: this.height / 2
}
this.labels = [];
totals.map(d => {
this.slice_totals.push(d[0]);
this.labels.push(d[1]);
});
this.legend_totals = this.slice_totals.slice(0, this.max_legend_points);
this.radius = (this.height > this.width ? this.center.x : this.center.y);
}
static getPositionByAngle(angle,radius) {
return {
x:Math.sin(angle * ANGLE_RATIO) * radius,
y:Math.cos(angle * ANGLE_RATIO) * radius,
};
}
makeArcPath(startPosition,endPosition){
const{centerX,centerY,radius,clockWise} = this;
return `M${centerX} ${centerY} L${centerX+startPosition.x} ${centerY+startPosition.y} A ${radius} ${radius} 0 0 ${clockWise ? 1 : 0} ${centerX+endPosition.x} ${centerY+endPosition.y} z`;
}
render(init) {
const{radius,clockWise} = this;
this.grand_total = this.slice_totals.reduce((a, b) => a + b, 0);
this.grand_total = this.state.sliceTotals.reduce((a, b) => a + b, 0);
const prevSlicesProperties = this.slicesProperties || [];
this.slices = [];
this.elements_to_animate = [];
this.slicesProperties = [];
let curAngle = 180 - this.startAngle;
this.slice_totals.map((total, i) => {
this.state.sliceTotals.map((total, i) => {
const startAngle = curAngle;
const originDiffAngle = (total / this.grand_total) * FULL_ANGLE;
const diffAngle = clockWise ? -originDiffAngle : originDiffAngle;
const endAngle = curAngle = curAngle + diffAngle;
const startPosition = PieChart.getPositionByAngle(startAngle,radius);
const endPosition = PieChart.getPositionByAngle(endAngle,radius);
const startPosition = getPositionByAngle(startAngle, radius);
const endPosition = getPositionByAngle(endAngle, radius);
const prevProperty = init && prevSlicesProperties[i];
let curStart,curEnd;
if(init){
@ -93,7 +57,7 @@ export default class PieChart extends BaseChart {
curStart = startPosition;
curEnd = endPosition;
}
const curPath = this.makeArcPath(curStart,curEnd);
const curPath = makeArcPathStr(curStart, curEnd, this.center, this.radius, this.clockWise);
let slice = makePath(curPath, 'pie-path', 'none', this.colors[i]);
slice.style.transition = 'transform .3s;';
this.drawArea.appendChild(slice);
@ -106,42 +70,44 @@ export default class PieChart extends BaseChart {
total: this.grand_total,
startAngle,
endAngle,
angle:diffAngle
angle: diffAngle
});
if(init){
this.elements_to_animate.push([{unit: slice, array: this.slices, index: this.slices.length - 1},
{d:this.makeArcPath(startPosition,endPosition)},
this.elements_to_animate.push([slice,
{d: makeArcPathStr(startPosition, endPosition, this.center, this.radius, this.clockWise)},
650, "easein",null,{
d:curPath
}]);
}
});
if(init){
runSMILAnimation(this.chartWrapper, this.svg, this.elements_to_animate);
}
// if(init){
// runSMILAnimation(this.chartWrapper, this.svg, this.elements_to_animate);
// }
}
calTranslateByAngle(property){
const{radius,hoverRadio} = this;
const position = PieChart.getPositionByAngle(property.startAngle+(property.angle / 2),radius);
const position = getPositionByAngle(property.startAngle+(property.angle / 2),radius);
return `translate3d(${(position.x) * hoverRadio}px,${(position.y) * hoverRadio}px,0)`;
}
hoverSlice(path,i,flag,e){
if(!path) return;
const color = this.colors[i];
if(flag){
transform(path,this.calTranslateByAngle(this.slicesProperties[i]));
path.style.fill = lightenDarkenColor(color,50);
if(flag) {
transform(path, this.calTranslateByAngle(this.slicesProperties[i]));
path.style.fill = lightenDarkenColor(color, 50);
let g_off = getOffset(this.svg);
let x = e.pageX - g_off.left + 10;
let y = e.pageY - g_off.top - 10;
let title = (this.formatted_labels && this.formatted_labels.length>0
let title = (this.formatted_labels && this.formatted_labels.length > 0
? this.formatted_labels[i] : this.labels[i]) + ': ';
let percent = (this.slice_totals[i]*100/this.grand_total).toFixed(1);
let percent = (this.state.sliceTotals[i]*100/this.grand_total).toFixed(1);
this.tip.set_values(x, y, title, percent + "%");
this.tip.show_tip();
}else{
} else {
transform(path,'translate3d(0,0,0)');
this.tip.hide_tip();
path.style.fill = color;
@ -169,24 +135,4 @@ export default class PieChart extends BaseChart {
// this.drawArea.addEventListener('mousemove',this.mouseMove);
// this.drawArea.addEventListener('mouseleave',this.mouseLeave);
}
renderLegend() {
let x_values = this.formatted_labels && this.formatted_labels.length > 0
? this.formatted_labels : this.labels;
this.legend_totals.map((d, i) => {
const color = this.colors[i];
if(d) {
let stats = $.create('div', {
className: 'stats',
inside: this.statsWrapper
});
stats.innerHTML = `<span class="indicator">
<i style="background-color:${color};"></i>
<span class="text-muted">${x_values[i]}:</span>
${d}
</span>`;
}
});
}
}

12
src/js/config.js
View File

@ -38,11 +38,9 @@ export function getDifferentChart(type, current_type, parent, args) {
// Okay, this is anticlimactic
// this function will need to actually be 'changeChartType(type)'
// that will update only the required elements, but for now ...
return new Chart(parent, {
title: args.title,
data: args.data,
type: type,
height: args.height,
colors: useColor ? args.colors : undefined
});
args.type = type;
args.colors = useColor ? args.colors : undefined;
return new Chart(parent, args);
}

2
src/js/utils/colors.js
View File

@ -16,7 +16,7 @@ const PRESET_COLOR_MAP = {
};
export const DEFAULT_COLORS = ['light-blue', 'blue', 'violet', 'red', 'orange',
'yellow', 'green', 'light-green', 'purple', 'magenta'];
'yellow', 'green', 'light-green', 'purple', 'magenta', 'light-grey', 'dark-grey'];
function limitColor(r){
if (r > 255) return 255;

6
src/js/utils/constants.js
View File

@ -16,4 +16,8 @@ export const MIN_BAR_PERCENT_HEIGHT = 0.01;
export const LINE_CHART_DOT_SIZE = 4;
export const DOT_OVERLAY_SIZE_INCR = 4;
export const DEFAULT_CHAR_WIDTH = 8;
export const DEFAULT_CHAR_WIDTH = 8;
// Universal constants
export const ANGLE_RATIO = Math.PI / 180;
export const FULL_ANGLE = 360;

10
src/js/utils/draw.js
View File

@ -108,6 +108,16 @@ export function makePath(pathStr, className='', stroke='none', fill='none') {
});
}
export function makeArcPathStr(startPosition, endPosition, center, radius, clockWise=1){
let [arcStartX, arcStartY] = [center.x + startPosition.x, center.y + startPosition.y];
let [arcEndX, arcEndY] = [center.x + endPosition.x, center.y + endPosition.y];
return `M${center.x} ${center.y}
L${arcStartX} ${arcStartY}
A ${radius} ${radius} 0 0 ${clockWise ? 1 : 0}
${arcEndX} ${arcEndY} z`;
}
export function makeGradient(svgDefElem, color, lighter = false) {
let gradientId ='path-fill-gradient' + '-' + color + '-' +(lighter ? 'lighter' : 'default');
let gradientDef = renderVerticalGradient(svgDefElem, gradientId);

9
src/js/utils/helpers.js
View File

@ -1,3 +1,5 @@
import { ANGLE_RATIO } from './constants';
/**
* Returns the value of a number upto 2 decimal places.
* @param {Number} d Any number
@ -74,3 +76,10 @@ export function bindChange(obj, getFn, setFn) {
}
});
}
export function getPositionByAngle(angle, radius) {
return {
x:Math.sin(angle * ANGLE_RATIO) * radius,
y:Math.cos(angle * ANGLE_RATIO) * radius,
};
}