@bokeh/bokehjs
Version:
Interactive, novel data visualization
56 lines • 1.78 kB
JavaScript
import { XYGlyph, XYGlyphView } from "./xy_glyph";
import { generic_area_scalar_legend } from "./utils";
import * as hittest from "../../core/hittest";
import * as mixins from "../../core/property_mixins";
import { Selection } from "../selections/selection";
export class PatchView extends XYGlyphView {
static __name__ = "PatchView";
_paint(ctx, indices, data) {
const { sx, sy } = { ...this, ...data };
let move = true;
ctx.beginPath();
for (const i of indices) {
const sx_i = sx[i];
const sy_i = sy[i];
if (!isFinite(sx_i + sy_i)) {
ctx.closePath();
move = true;
}
else {
if (move) {
ctx.moveTo(sx_i, sy_i);
move = false;
}
else {
ctx.lineTo(sx_i, sy_i);
}
}
}
ctx.closePath();
this.visuals.fill.apply(ctx);
this.visuals.hatch.apply(ctx);
this.visuals.line.apply(ctx);
}
draw_legend_for_index(ctx, bbox, _index) {
generic_area_scalar_legend(this.visuals, ctx, bbox);
}
_hit_point(geometry) {
const result = new Selection();
if (hittest.point_in_poly(geometry.sx, geometry.sy, this.sx, this.sy)) {
result.add_to_selected_glyphs(this.model);
result.view = this;
}
return result;
}
}
export class Patch extends XYGlyph {
static __name__ = "Patch";
constructor(attrs) {
super(attrs);
}
static {
this.prototype.default_view = PatchView;
this.mixins([mixins.LineScalar, mixins.FillScalar, mixins.HatchScalar]);
}
}
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