はAngular2における基本的なD3グラフ+
https://github.com/shanegibney/d3graph
d3graph.component.ts
import { Component, ElementRef, NgZone, OnDestroy, OnInit } from '@angular/core';
import {
D3Service,
D3,
Axis,
BrushBehavior,
BrushSelection,
D3BrushEvent,
ScaleLinear,
ScaleOrdinal,
Selection,
Transition
} from 'd3-ng2-service';
@Component({
selector: 'app-d3graph',
template: '<svg width="200" height="200"></svg>'
})
export class D3graphComponent implements OnInit {
private d3: D3;
private parentNativeElement: any;
private d3Svg: Selection<SVGSVGElement, any, null, undefined>;
constructor(element: ElementRef, private ngZone: NgZone, d3Service: D3Service) {
this.d3 = d3Service.getD3();
this.parentNativeElement = element.nativeElement;
}
ngOnInit() {
let self = this;
let d3 = this.d3;
let d3ParentElement: any;
let svg: any;
let name: string;
let yVal: number;
let colors: any = [];
let data: {name: string, yVal: number}[] = [];
let padding: number = 25;
let width: number = 500;
let height: number = 150;
let xScale: any;
let yScale: any;
let xColor: any;
let xAxis: any;
let yAxis: any;
if (this.parentNativeElement !== null) {
svg = d3.select(this.parentNativeElement)
.append('svg') // create an <svg> element
.attr('width', width) // set its dimensions
.attr('height', height);
colors = ['red', 'yellow', 'green', 'blue'];
data = [
{name : 'A', yVal : 1},
{name : 'B', yVal : 4},
{name : 'C', yVal : 2},
{name : 'D', yVal : 3}
];
xScale = d3.scaleBand()
.domain(data.map(function(d){ return d.name; }))
.range([0, 200]);
yScale = d3.scaleLinear()
.domain([0,d3.max(data, function(d) {return d.yVal})])
.range([100, 0]);
xAxis = d3.axisBottom(xScale) // d3.js v.4
.ticks(5)
.scale(xScale);
yAxis = d3.axisLeft(xScale) // d3.js v.4
.scale(yScale)
.ticks(7);
svg.append("g")
.attr("class", "axis")
.attr("transform", "translate(" + (padding) + "," + padding + ")")
.call(yAxis);
svg.append('g') // create a <g> element
.attr('class', 'axis') // specify classes
.attr("transform", "translate(" + padding + "," + (height - padding) + ")")
.call(xAxis); // let the axis do its thing
var rects = svg.selectAll('rect')
.data(data);
rects.size();
var newRects = rects.enter();
newRects.append('rect')
.attr('x', function(d,i) {
return xScale(d.name);
})
.attr('y', function(d) {
return yScale(d.yVal);
})
.attr("transform","translate(" + (padding -5 + 25) + "," + (padding - 5) + ")")
.attr('height', function(d) {
return height - yScale(d.yVal) - (2*padding) + 5})
.attr('width', 10)
.attr('fill', function(d, i) {
return colors[i];
});
}
}
}
です。 –