我尝试重用一个javascript函数d3.js liquid gauge，它在typescript中包含嵌套函数，但遇到了很多奇怪的错误。
javascript片段如下所示。
function loadLiquidFillGauge(elementId, value, config) {
if(config == null) config = liquidFillGaugeDefaultSettings();
var gauge = d3.select("#" + elementId);
var radius = Math.min(parseInt(gauge.style("width")), parseInt(gauge.style("height")))/2;
var locationX = parseInt(gauge.style("width"))/2 - radius;
var locationY = parseInt(gauge.style("height"))/2 - radius;
var fillPercent = Math.max(config.minValue, Math.min(config.maxValue, value))/config.maxValue;
var waveHeightScale;
if(config.waveHeightScaling){
waveHeightScale = d3.scale.linear()
.range([0,config.waveHeight,0])
.domain([0,50,100]);
} else {
waveHeightScale = d3.scale.linear()
.range([config.waveHeight,config.waveHeight])
.domain([0,100]);
}
var textPixels = (config.textSize*radius/2);
var textFinalValue = parseFloat(value).toFixed(2);
var textStartValue = config.valueCountUp?config.minValue:textFinalValue;
var percentText = config.displayPercent?"%":"";
var circleThickness = config.circleThickness * radius;
var circleFillGap = config.circleFillGap * radius;
var fillCircleMargin = circleThickness + circleFillGap;
var fillCircleRadius = radius - fillCircleMargin;
var waveHeight = fillCircleRadius*waveHeightScale(fillPercent*100);
var waveLength = fillCircleRadius*2/config.waveCount;
var waveClipCount = 1+config.waveCount;
var waveClipWidth = waveLength*waveClipCount;
// Rounding functions so that the correct number of decimal places is always displayed as the value counts up.
var textRounder = function(value){ return Math.round(value); };
if(parseFloat(textFinalValue) != parseFloat(textRounder(textFinalValue))){
textRounder = function(value){ return parseFloat(value).toFixed(1); };
}
if(parseFloat(textFinalValue) != parseFloat(textRounder(textFinalValue))){
textRounder = function(value){ return parseFloat(value).toFixed(2); };
}
// Data for building the clip wave area.
var data = [];
for(var i = 0; i <= 40*waveClipCount; i++){
data.push({x: i/(40*waveClipCount), y: (i/(40))});
}
// Scales for drawing the outer circle.
var gaugeCircleX = d3.scale.linear().range([0,2*Math.PI]).domain([0,1]);
var gaugeCircleY = d3.scale.linear().range([0,radius]).domain([0,radius]);
// Scales for controlling the size of the clipping path.
var waveScaleX = d3.scale.linear().range([0,waveClipWidth]).domain([0,1]);
var waveScaleY = d3.scale.linear().range([0,waveHeight]).domain([0,1]);
// Scales for controlling the position of the clipping path.
var waveRiseScale = d3.scale.linear()
// The clipping area size is the height of the fill circle + the wave height, so we position the clip wave
// such that the it will overlap the fill circle at all when at 0%, and will totally cover the fill
// circle at 100%.
.range([(fillCircleMargin+fillCircleRadius*2+waveHeight),(fillCircleMargin-waveHeight)])
.domain([0,1]);
var waveAnimateScale = d3.scale.linear()
.range([0, waveClipWidth-fillCircleRadius*2]) // Push the clip area one full wave then snap back.
.domain([0,1]);
// Scale for controlling the position of the text within the gauge.
var textRiseScaleY = d3.scale.linear()
.range([fillCircleMargin+fillCircleRadius*2,(fillCircleMargin+textPixels*0.7)])
.domain([0,1]);
// Center the gauge within the parent SVG.
var gaugeGroup = gauge.append("g")
.attr('transform','translate('+locationX+','+locationY+')');
// Draw the outer circle.
var gaugeCircleArc = d3.svg.arc()
.startAngle(gaugeCircleX(0))
.endAngle(gaugeCircleX(1))
.outerRadius(gaugeCircleY(radius))
.innerRadius(gaugeCircleY(radius-circleThickness));
gaugeGroup.append("path")
.attr("d", gaugeCircleArc)
.style("fill", config.circleColor)
.attr('transform','translate('+radius+','+radius+')');
// Text where the wave does not overlap.
var text1 = gaugeGroup.append("text")
.text(textRounder(textStartValue) + percentText)
.attr("class", "liquidFillGaugeText")
.attr("text-anchor", "middle")
.attr("font-size", textPixels + "px")
.style("fill", config.textColor)
.attr('transform','translate('+radius+','+textRiseScaleY(config.textVertPosition)+')');
// The clipping wave area.
var clipArea = d3.svg.area()
.x(function(d) { return waveScaleX(d.x); } )
.y0(function(d) { return waveScaleY(Math.sin(Math.PI*2*config.waveOffset*-1 + Math.PI*2*(1-config.waveCount) + d.y*2*Math.PI));} )
.y1(function(d) { return (fillCircleRadius*2 + waveHeight); } );
var waveGroup = gaugeGroup.append("defs")
.append("clipPath")
.attr("id", "clipWave" + elementId);
var wave = waveGroup.append("path")
.datum(data)
.attr("d", clipArea)
.attr("T", 0);
// The inner circle with the clipping wave attached.
var fillCircleGroup = gaugeGroup.append("g")
.attr("clip-path", "url(#clipWave" + elementId + ")");
fillCircleGroup.append("circle")
.attr("cx", radius)
.attr("cy", radius)
.attr("r", fillCircleRadius)
.style("fill", config.waveColor);
// Text where the wave does overlap.
var text2 = fillCircleGroup.append("text")
.text(textRounder(textStartValue) + percentText)
.attr("class", "liquidFillGaugeText")
.attr("text-anchor", "middle")
.attr("font-size", textPixels + "px")
.style("fill", config.waveTextColor)
.attr('transform','translate('+radius+','+textRiseScaleY(config.textVertPosition)+')');
// Make the value count up.
if(config.valueCountUp){
var textTween = function(){
var i = d3.interpolate(this.textContent, textFinalValue);
return function(t) { this.textContent = textRounder(i(t)) + percentText; }
};
text1.transition()
.duration(config.waveRiseTime)
.tween("text", textTween);
text2.transition()
.duration(config.waveRiseTime)
.tween("text", textTween);
}
// Make the wave rise. wave and waveGroup are separate so that horizontal and vertical movement can be controlled independently.
var waveGroupXPosition = fillCircleMargin+fillCircleRadius*2-waveClipWidth;
if(config.waveRise){
waveGroup.attr('transform','translate('+waveGroupXPosition+','+waveRiseScale(0)+')')
.transition()
.duration(config.waveRiseTime)
.attr('transform','translate('+waveGroupXPosition+','+waveRiseScale(fillPercent)+')')
.each("start", function(){ wave.attr('transform','translate(1,0)'); }); // This transform is necessary to get the clip wave positioned correctly when waveRise=true and waveAnimate=false. The wave will not position correctly without this, but it's not clear why this is actually necessary.
} else {
waveGroup.attr('transform','translate('+waveGroupXPosition+','+waveRiseScale(fillPercent)+')');
}
if(config.waveAnimate) animateWave();
function animateWave() {
wave.attr('transform','translate('+waveAnimateScale(wave.attr('T'))+',0)');
wave.transition()
.duration(config.waveAnimateTime * (1-wave.attr('T')))
.ease('linear')
.attr('transform','translate('+waveAnimateScale(1)+',0)')
.attr('T', 1)
.each('end', function(){
wave.attr('T', 0);
animateWave(config.waveAnimateTime);
});
}
}
我将上述代码复制到了typescript类，删除了function关键字并添加了一些类型限制，如下所示。
liquidFillGaugeDefaultSettings(){
return {
minValue: 0, // The gauge minimum value.
maxValue: 100, // The gauge maximum value.
circleThickness: 0.05, // The outer circle thickness as a percentage of it's radius.
circleFillGap: 0.05, // The size of the gap between the outer circle and wave circle as a percentage of the outer circles radius.
circleColor: "#152935", // The color of the outer circle.
waveHeight: 0.05, // The wave height as a percentage of the radius of the wave circle.
waveCount: 1, // The number of full waves per width of the wave circle.
waveRiseTime: 1000, // The amount of time in milliseconds for the wave to rise from 0 to it's final height.
waveAnimateTime: 1000, // The amount of time in milliseconds for a full wave to enter the wave circle.
waveRise: true, // Control if the wave should rise from 0 to it's full height, or start at it's full height.
waveHeightScaling: true, // Controls wave size scaling at low and high fill percentages. When true, wave height reaches it's maximum at 50% fill, and minimum at 0% and 100% fill. This helps to prevent the wave from making the wave circle from appear totally full or empty when near it's minimum or maximum fill.
waveAnimate: true, // Controls if the wave scrolls or is static.
waveColor: "#41d6c3", // The color of the fill wave.
waveOffset: 0, // The amount to initially offset the wave. 0 = no offset. 1 = offset of one full wave.
textVertPosition: .5, // The height at which to display the percentage text withing the wave circle. 0 = bottom, 1 = top.
textSize: 1, // The relative height of the text to display in the wave circle. 1 = 50%
valueCountUp: true, // If true, the displayed value counts up from 0 to it's final value upon loading. If false, the final value is displayed.
displayPercent: true, // If true, a % symbol is displayed after the value.
textColor: "#045681", // The color of the value text when the wave does not overlap it.
waveTextColor: "#A4DBf8" // The color of the value text when the wave overlaps it.
};
}
loadLiquidFillGauge(elementId:string, value:string, config:any) {
if(config == null) config = this.liquidFillGaugeDefaultSettings();
var gauge = d3.select("#" + elementId);
var radius = Math.min(parseInt(gauge.style("width")), parseInt(gauge.style("height")))/2;
var locationX = parseInt(gauge.style("width"))/2 - radius;
var locationY = parseInt(gauge.style("height"))/2 - radius;
var fillPercent = Math.max(config.minValue, Math.min(config.maxValue, +value))/config.maxValue;
var waveHeightScale;
if(config.waveHeightScaling){
waveHeightScale = d3.scale.linear()
.range([0,config.waveHeight,0])
.domain([0,50,100]);
} else {
waveHeightScale = d3.scale.linear()
.range([config.waveHeight,config.waveHeight])
.domain([0,100]);
}
var textPixels = (config.textSize*radius/2);
var textFinalValue = parseFloat(value).toFixed(2);
var textStartValue = config.valueCountUp?config.minValue:textFinalValue;
var percentText = config.displayPercent?"%":"";
var circleThickness = config.circleThickness * radius;
var circleFillGap = config.circleFillGap * radius;
var fillCircleMargin = circleThickness + circleFillGap;
var fillCircleRadius = radius - fillCircleMargin;
var waveHeight = fillCircleRadius*waveHeightScale(fillPercent*100);
var waveLength = fillCircleRadius*2/config.waveCount;
var waveClipCount = 1+config.waveCount;
var waveClipWidth = waveLength*waveClipCount;
// Rounding functions so that the correct number of decimal places is always displayed as the value counts up.
var textRounder = function(value:string){ return Math.round(+value); };
if(parseFloat(textFinalValue) != parseFloat(textRounder(textFinalValue))){
textRounder = function(value:string){ return parseFloat(value).toFixed(1); };
}
if(parseFloat(textFinalValue) != parseFloat(textRounder(textFinalValue))){
textRounder = function(value:string){ return parseFloat(value).toFixed(2); };
}
// Data for building the clip wave area.
var data = [];
for(var i = 0; i <= 40*waveClipCount; i++){
data.push({x: i/(40*waveClipCount), y: (i/(40))});
}
// Scales for drawing the outer circle.
var gaugeCircleX = d3.scale.linear().range([0,2*Math.PI]).domain([0,1]);
var gaugeCircleY = d3.scale.linear().range([0,radius]).domain([0,radius]);
// Scales for controlling the size of the clipping path.
var waveScaleX = d3.scale.linear().range([0,waveClipWidth]).domain([0,1]);
var waveScaleY = d3.scale.linear().range([0,waveHeight]).domain([0,1]);
// Scales for controlling the position of the clipping path.
var waveRiseScale = d3.scale.linear()
// The clipping area size is the height of the fill circle + the wave height, so we position the clip wave
// such that the it will overlap the fill circle at all when at 0%, and will totally cover the fill
// circle at 100%.
.range([(fillCircleMargin+fillCircleRadius*2+waveHeight),(fillCircleMargin-waveHeight)])
.domain([0,1]);
var waveAnimateScale = d3.scale.linear()
.range([0, waveClipWidth-fillCircleRadius*2]) // Push the clip area one full wave then snap back.
.domain([0,1]);
// Scale for controlling the position of the text within the gauge.
var textRiseScaleY = d3.scale.linear()
.range([fillCircleMargin+fillCircleRadius*2,(fillCircleMargin+textPixels*0.7)])
.domain([0,1]);
// Center the gauge within the parent SVG.
var gaugeGroup = gauge.append("g")
.attr('transform','translate('+locationX+','+locationY+')');
// Draw the outer circle.
var gaugeCircleArc = d3.svg.arc()
.startAngle(gaugeCircleX(0))
.endAngle(gaugeCircleX(1))
.outerRadius(gaugeCircleY(radius))
.innerRadius(gaugeCircleY(radius-circleThickness));
gaugeGroup.append("path")
.attr("d", gaugeCircleArc)
.style("fill", config.circleColor)
.attr('transform','translate('+radius+','+radius+')');
// Text where the wave does not overlap.
var text1 = gaugeGroup.append("text")
.text(textRounder(textStartValue) + percentText)
.attr("class", "liquidFillGaugeText")
.attr("text-anchor", "middle")
.attr("font-size", textPixels + "px")
.style("fill", config.textColor)
.attr('transform','translate('+radius+','+textRiseScaleY(config.textVertPosition)+')');
// The clipping wave area.
var clipArea = d3.svg.area()
.x(function(d) { return waveScaleX(d.x); } )
.y0(function(d) { return waveScaleY(Math.sin(Math.PI*2*config.waveOffset*-1 + Math.PI*2*(1-config.waveCount) + d.y*2*Math.PI));} )
.y1(function(d) { return (fillCircleRadius*2 + waveHeight); } );
var waveGroup = gaugeGroup.append("defs")
.append("clipPath")
.attr("id", "clipWave" + elementId);
var wave = waveGroup.append("path")
.datum(data)
.attr("d", clipArea)
.attr("T", 0);
// The inner circle with the clipping wave attached.
var fillCircleGroup = gaugeGroup.append("g")
.attr("clip-path", "url(#clipWave" + elementId + ")");
fillCircleGroup.append("circle")
.attr("cx", radius)
.attr("cy", radius)
.attr("r", fillCircleRadius)
.style("fill", config.waveColor);
// Text where the wave does overlap.
var text2 = fillCircleGroup.append("text")
.text(textRounder(textStartValue) + percentText)
.attr("class", "liquidFillGaugeText")
.attr("text-anchor", "middle")
.attr("font-size", textPixels + "px")
.style("fill", config.waveTextColor)
.attr('transform','translate('+radius+','+textRiseScaleY(config.textVertPosition)+')');
// Make the value count up.
if(config.valueCountUp){
var textTween = function(){
var i = d3.interpolate(this.textContent, textFinalValue);
return function(t) { this.textContent = textRounder(i(t)) + percentText; }
};
text1.transition()
.duration(config.waveRiseTime)
.tween("text", textTween);
text2.transition()
.duration(config.waveRiseTime)
.tween("text", textTween);
}
// Make the wave rise. wave and waveGroup are separate so that horizontal and vertical movement can be controlled independently.
var waveGroupXPosition = fillCircleMargin+fillCircleRadius*2-waveClipWidth;
if(config.waveRise){
waveGroup.attr('transform','translate('+waveGroupXPosition+','+waveRiseScale(0)+')')
.transition()
.duration(config.waveRiseTime)
.attr('transform','translate('+waveGroupXPosition+','+waveRiseScale(fillPercent)+')')
.each("start", function(){ wave.attr('transform','translate(1,0)'); }); // This transform is necessary to get the clip wave positioned correctly when waveRise=true and waveAnimate=false. The wave will not position correctly without this, but it's not clear why this is actually necessary.
} else {
waveGroup.attr('transform','translate('+waveGroupXPosition+','+waveRiseScale(fillPercent)+')');
}
if(config.waveAnimate) animateWave();
animateWave() {
wave.attr('transform','translate('+waveAnimateScale(wave.attr('T'))+',0)');
wave.transition()
.duration(config.waveAnimateTime * (1-wave.attr('T')))
.ease('linear')
.attr('transform','translate('+waveAnimateScale(1)+',0)')
.attr('T', 1)
.each('end', function(){
wave.attr('T', 0);
animateWave(config.waveAnimateTime);
});
}
}
并在此行';' expected抱怨animateWave() {。即使我完全删除了animateWave()函数，它也开始抱怨textRounder函数的类型不匹配。
我猜必须有其他一些错误触发这个没有意义的错误。但我找不到它。你能指出来吗？
我知道代码太长了。如果它不适合某个特定问题，那么当我想在打字稿中重复使用javascript函数时，你们可以建议我该怎么办？
答案 0 :(得分：0)
我创建了这样的 chart-liquid-fill-gauge.ts
import { Component, Inject, ElementRef, ViewChild, Input } from '@angular/core';
import * as d3 from 'd3';
@Component({
selector: 'view-chart-liquid-fill-gauge',
template: '<div class="d3-chart" #chart></div>',
inputs: ['options', 'data']
})
export class LiquidFillGaugeChartView {
@ViewChild('chart') private chartContainer: ElementRef;
@Input() private data: string;
private margin: any = { top: 20, bottom: 20, left: 20, right: 20 };
private chart: any;
private width: number;
private height: number;
/**
* Initializes the component with the root element.
*/
constructor( @Inject(ElementRef) elementRef: ElementRef) {
//this.el = elementRef.nativeElement;
}
ngOnInit() {
this.createChart();
if (this.data) {
// this.updateChart();
}
}
ngOnChanges() {
if (this.chart) {
this.updateChart();
}
}
createChart() {
let config: any;
let element = this.chartContainer.nativeElement;
this.width = element.offsetWidth - this.margin.left - this.margin.right;
this.height = element.offsetHeight - this.margin.top - this.margin.bottom;
let value = parseFloat(this.data);
let gauge = d3.select(element).append('svg')
.attr('width', element.offsetWidth)
.attr('height', element.offsetHeight);
if(config == null) config = this.liquidFillGaugeDefaultSettings();
var radius = Math.min(parseInt(gauge.style("width")), parseInt(gauge.style("height")))/2;
var locationX = parseInt(gauge.style("width"))/2 - radius;
var locationY = parseInt(gauge.style("height"))/2 - radius;
var fillPercent = Math.max(config.minValue, Math.min(config.maxValue, value))/config.maxValue;
var elementId = "liquidFillGauge"+new Date().getUTCMilliseconds();
var waveHeightScale;
if(config.waveHeightScaling){
waveHeightScale = d3.scaleLinear()
.range([0,config.waveHeight,0])
.domain([0,50,100]);
} else {
waveHeightScale = d3.scaleLinear()
.range([config.waveHeight,config.waveHeight])
.domain([0,100]);
}
var textPixels = (config.textSize*radius/2);
var textFinalValue = parseFloat(value+"").toFixed(2);
var textStartValue = config.valueCountUp?config.minValue:textFinalValue;
var percentText = config.displayPercent?"%":"";
var circleThickness = config.circleThickness * radius;
var circleFillGap = config.circleFillGap * radius;
var fillCircleMargin = circleThickness + circleFillGap;
var fillCircleRadius = radius - fillCircleMargin;
var waveHeight = fillCircleRadius*waveHeightScale(fillPercent*100);
var waveLength = fillCircleRadius*2/config.waveCount;
var waveClipCount = 1+config.waveCount;
var waveClipWidth = waveLength*waveClipCount;
// Data for building the clip wave area.
var data = [];
for(var i = 0; i <= 40*waveClipCount; i++){
data.push({x: i/(40*waveClipCount), y: (i/(40))});
}
// Scales for drawing the outer circle.
var gaugeCircleX = d3.scaleLinear().range([0,2*Math.PI]).domain([0,1]);
var gaugeCircleY = d3.scaleLinear().range([0,radius]).domain([0,radius]);
// Scales for controlling the size of the clipping path.
var waveScaleX = d3.scaleLinear().range([0,waveClipWidth]).domain([0,1]);
var waveScaleY = d3.scaleLinear().range([0,waveHeight]).domain([0,1]);
// Scales for controlling the position of the clipping path.
var waveRiseScale = d3.scaleLinear()
// The clipping area size is the height of the fill circle + the wave height, so we position the clip wave
// such that the it will overlap the fill circle at all when at 0%, and will totally cover the fill
// circle at 100%.
.range([(fillCircleMargin+fillCircleRadius*2+waveHeight),(fillCircleMargin-waveHeight)])
.domain([0,1]);
var waveAnimateScale = d3.scaleLinear()
.range([0, waveClipWidth-fillCircleRadius*2]) // Push the clip area one full wave then snap back.
.domain([0,1]);
// Scale for controlling the position of the text within the gauge.
var textRiseScaleY = d3.scaleLinear()
.range([fillCircleMargin+fillCircleRadius*2,(fillCircleMargin+textPixels*0.7)])
.domain([0,1]);
// Center the gauge within the parent SVG.
var gaugeGroup = gauge.append("g")
.attr('transform','translate('+locationX+','+locationY+')');
// Draw the outer circle.
var gaugeCircleArc = d3.arc()
.startAngle(gaugeCircleX(0))
.endAngle(gaugeCircleX(1))
.outerRadius(gaugeCircleY(radius))
.innerRadius(gaugeCircleY(radius-circleThickness));
gaugeGroup.append("path")
.attr("d", gaugeCircleArc)
.style("fill", config.circleColor)
.attr('transform','translate('+radius+','+radius+')');
// Rounding functions so that the correct number of decimal places is always displayed as the value counts up.
var textRounder:any = function(value){ return Math.round(value); };
if(parseFloat(textFinalValue) != parseFloat(textRounder(textFinalValue))){
textRounder = function(value){ return parseFloat(value).toFixed(1); };
}
if(parseFloat(textFinalValue) != parseFloat(textRounder(textFinalValue))){
textRounder = function(value){ return parseFloat(value).toFixed(2); };
}
// Text where the wave does not overlap.
var text1 = gaugeGroup.append("text")
.text(textRounder(textStartValue) + percentText)
.attr("class", "liquidFillGaugeText")
.attr("text-anchor", "middle")
.attr("font-size", textPixels + "px")
.style("fill", config.textColor)
.attr('transform','translate('+radius+','+textRiseScaleY(config.textVertPosition)+')');
// The clipping wave area.
var clipArea = d3.area()
.x(function(d) { return waveScaleX(d['x']); } )
.y0(function(d) { return waveScaleY(Math.sin(Math.PI*2*config.waveOffset*-1 + Math.PI*2*(1-config.waveCount) + d['y']*2*Math.PI));} )
.y1(function(d) { return (fillCircleRadius*2 + waveHeight); } );
var waveGroup = gaugeGroup.append("defs")
.append("clipPath")
.attr("id", "clipWave"+elementId);
var wave = waveGroup.append("path")
.datum(data)
.attr("d", clipArea)
.attr("T", 0);
// The inner circle with the clipping wave attached.
var fillCircleGroup = gaugeGroup.append("g")
.attr("clip-path", "url(#clipWave"+elementId+")");
fillCircleGroup.append("circle")
.attr("cx", radius)
.attr("cy", radius)
.attr("r", fillCircleRadius)
.style("fill", config.waveColor);
// Text where the wave does overlap.
var text2 = fillCircleGroup.append("text")
.text(textRounder(textStartValue) + percentText)
.attr("class", "liquidFillGaugeText")
.attr("text-anchor", "middle")
.attr("font-size", textPixels + "px")
.style("fill", config.waveTextColor)
.attr('transform','translate('+radius+','+textRiseScaleY(config.textVertPosition)+')');
// Make the value count up.
if(config.valueCountUp){
var textTween = function(){
var i = d3.interpolate(text1.text, textFinalValue);
return function(t) {text1.text(textRounder(i(t)) + percentText); }
};
var textTween2 = function(){
var i = d3.interpolate(text2.text, textFinalValue);
return function(t) {text2.text(textRounder(i(t)) + percentText); }
};
text1.transition()
.duration(config.waveRiseTime)
.tween("text", textTween);
text2.transition()
.duration(config.waveRiseTime)
.tween("text", textTween2);
}
// Make the wave rise. wave and waveGroup are separate so that horizontal and vertical movement can be controlled independently.
var waveGroupXPosition = fillCircleMargin+fillCircleRadius*2-waveClipWidth;
if(config.waveRise){
waveGroup.attr('transform','translate('+waveGroupXPosition+','+waveRiseScale(0)+')')
.transition()
.duration(config.waveRiseTime)
.attr('transform','translate('+waveGroupXPosition+','+waveRiseScale(fillPercent)+')')
.on("start", function(){ wave.attr('transform','translate(1,0)'); }); // This transform is necessary to get the clip wave positioned correctly when waveRise=true and waveAnimate=false. The wave will not position correctly without this, but it's not clear why this is actually necessary.
} else {
waveGroup.attr('transform','translate('+waveGroupXPosition+','+waveRiseScale(fillPercent)+')');
}
if(config.waveAnimate) animateWave(wave, config.waveAnimateTime);
function animateWave(wave, animateTime) {
wave.attr('transform','translate('+waveAnimateScale(wave.attr('T'))+',0)');
wave.transition()
.duration(animateTime * (1-wave.attr('T')))
.ease(d3.easeLinear)
.attr('transform','translate('+waveAnimateScale(1)+',0)')
.attr('T', 1)
.on('end', function(){
wave.attr('T', 0);
animateWave(wave, animateTime);
});
}
}
updateChart() {
}
liquidFillGaugeDefaultSettings() {
return {
minValue: 0, // The gauge minimum value.
maxValue: 100, // The gauge maximum value.
circleThickness: 0.05, // The outer circle thickness as a percentage of it's radius.
circleFillGap: 0.05, // The size of the gap between the outer circle and wave circle as a percentage of the outer circles radius.
circleColor: "#178BCA", // The color of the outer circle.
waveHeight: 0.05, // The wave height as a percentage of the radius of the wave circle.
waveCount: 1, // The number of full waves per width of the wave circle.
waveRiseTime: 1000, // The amount of time in milliseconds for the wave to rise from 0 to it's final height.
waveAnimateTime: 3000, // The amount of time in milliseconds for a full wave to enter the wave circle.
waveRise: true, // Control if the wave should rise from 0 to it's full height, or start at it's full height.
waveHeightScaling: true, // Controls wave size scaling at low and high fill percentages. When true, wave height reaches it's maximum at 50% fill, and minimum at 0% and 100% fill. This helps to prevent the wave from making the wave circle from appear totally full or empty when near it's minimum or maximum fill.
waveAnimate: true, // Controls if the wave scrolls or is static.
waveColor: "#178BCA", // The color of the fill wave.
waveOffset: 0, // The amount to initially offset the wave. 0 = no offset. 1 = offset of one full wave.
textVertPosition: .5, // The height at which to display the percentage text withing the wave circle. 0 = bottom, 1 = top.
textSize: 1, // The relative height of the text to display in the wave circle. 1 = 50%
valueCountUp: true, // If true, the displayed value counts up from 0 to it's final value upon loading. If false, the final value is displayed.
displayPercent: true, // If true, a % symbol is displayed after the value.
textColor: "#045681", // The color of the value text when the wave does not overlap it.
waveTextColor: "#A4DBf8" // The color of the value text when the wave overlaps it.
};
}
}
然后 chart-liquid-fill-gauge.css
.d3-chart {
width: 30%;
height: 400px;
}
将LiquidFillGaugeChartView添加到 app.module.ts
import { LiquidFillGaugeChartView } from 'views/chart-liquid-fill-gauge';
@NgModule({
declarations: [
:
LiquidFillGaugeChartView
],
:
});
<view-chart-liquid-fill-gauge [data]="55.5"></view-chart-liquid-fill-gauge>
注意：使用D3 V4并经过测试为我工作。