Commit dd835750 authored by Remi  PLANEL's avatar Remi PLANEL
Browse files

zoom-in and zoom-out for the genome browser

parent 29392ff2
......@@ -3,11 +3,17 @@ import GenomeAxis from "./component/sequence/genome-axis";
import { select } from "d3-selection";
import { of } from "rxjs";
const width = 1500;
const genomeWindowSize = 6000;
let genomeWindowSize = 6000;
let centerWindow = 23000;
const geneComponent = GeneComponent();
const genomeAxis = GenomeAxis();
const clickHandler = ([begin, end]: [number, number]) => draw((end + begin) / 2);
const clickHandler = ([begin, end]: [number, number]) => {
centerWindow = (end + begin) / 2;
draw();
};
const genes: Array<GeneData> = [
{
name: "gene 1",
......@@ -41,22 +47,33 @@ const genes: Array<GeneData> = [
}
]
select("#zoom-in").on("click", function () {
genomeWindowSize -= 1000;
draw()
});
select("#zoom-out").on("click", function () {
genomeWindowSize += 1000;
draw()
});
function draw(centerGenome: number) {
/*
FUNCTIONS
*/
function draw() {
const svg = select<SVGSVGElement, any>("svg").attr("width", width + 1).attr("height", 900);
const genomeAxisElem = svg.select<SVGElement>("#axis");
const geneElem = svg.select<SVGElement>("#genes");
genomeAxisElem
.datum(getGenomeWindow(centerGenome, genomeWindowSize))
.datum(getGenomeWindow(centerWindow, genomeWindowSize))
.call(genomeAxis, width, 0);
geneElem
.datum<Array<GeneData>>(genes)
.call(geneComponent, genomeAxis.scale(), 40);
}
draw(23000);
draw();
function getGenomeWindow(middle: number, genomeWindowSize: number): [number, number] {
const halfWindow = genomeWindowSize / 2;
return [middle - halfWindow, middle + halfWindow]
}
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