1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
import * as d3 from 'd3';
import { DataPoint } from '../components/LineChart';
// TODO: nda - implement function that can handle range for strings
export const minMaxRange = (dataPts: DataPoint[][]) => {
// find the max and min of all the data points
const yMin = d3.min(dataPts, d => d3.min(d, d => Number(d.y)));
const yMax = d3.max(dataPts, d => d3.max(d, d => Number(d.y)));
const xMin = d3.min(dataPts, d => d3.min(d, d => Number(d.x)));
const xMax = d3.max(dataPts, d => d3.max(d, d => Number(d.x)));
return { xMin, xMax, yMin, yMax };
};
export const scaleCreatorCategorical = (labels: string[], range: number[]) => {
const scale = d3.scaleBand().domain(labels).range(range);
return scale;
};
export const scaleCreatorNumerical = (domA: number, domB: number, rangeA: number, rangeB: number) => {
return d3.scaleLinear().domain([domA, domB]).range([rangeA, rangeB]);
};
export const createLineGenerator = (xScale: d3.ScaleLinear<number, number, never>, yScale: d3.ScaleLinear<number, number, never>) => {
// TODO: nda - look into the different types of curves
return d3
.line<DataPoint>()
.x(d => xScale(d.x))
.y(d => yScale(d.y))
.curve(d3.curveMonotoneX);
};
export const xAxisCreator = (g: d3.Selection<SVGGElement, unknown, null, undefined>, height: number, xScale: d3.ScaleLinear<number, number, never>) => {
g.attr('class', 'x-axis').attr('transform', `translate(0,${height})`).call(d3.axisBottom(xScale).tickSize(15));
};
export const yAxisCreator = (g: d3.Selection<SVGGElement, unknown, null, undefined>, marginLeft: number, yScale: d3.ScaleLinear<number, number, never>) => {
g.attr('class', 'y-axis').call(d3.axisLeft(yScale));
};
export const xGrid = (g: d3.Selection<SVGGElement, unknown, null, undefined>, height: number, scale: d3.ScaleLinear<number, number, never>) => {
g.attr('class', 'xGrid')
.attr('transform', `translate(0,${height})`)
.call(
d3
.axisBottom(scale)
.tickSize(-height)
.tickFormat((a, b) => '')
);
};
export const yGrid = (g: d3.Selection<SVGGElement, unknown, null, undefined>, width: number, scale: d3.ScaleLinear<number, number, never>) => {
g.attr('class', 'yGrid').call(
d3
.axisLeft(scale)
.tickSize(-width)
.tickFormat((a, b) => '')
);
};
export const drawLine = (p: d3.Selection<SVGPathElement, unknown, null, undefined>, dataPts: DataPoint[], lineGen: d3.Line<DataPoint>, extra: boolean) => {
p.datum(dataPts).attr('fill', 'none').attr('stroke', 'rgba(53, 162, 235, 0.5)').attr('stroke-width', 2).attr('stroke', extra? 'blue' : 'black').attr('class', 'line').attr('d', lineGen);
};
|
