Repository URL to install this package:
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Version:
2.4.3 ▾
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var _a;
import { XYGlyph, XYGlyphView } from "./xy_glyph";
import { generic_area_vector_legend } from "./utils";
import { LineVector, FillVector, HatchVector } from "../../core/property_mixins";
import { to_screen } from "../../core/types";
import { Direction } from "../../core/enums";
import * as p from "../../core/properties";
import { angle_between } from "../../core/util/math";
import { Selection } from "../selections/selection";
import { max } from "../../core/util/arrayable";
export class WedgeView extends XYGlyphView {
_map_data() {
if (this.model.properties.radius.units == "data")
this.sradius = this.sdist(this.renderer.xscale, this._x, this.radius);
else
this.sradius = to_screen(this.radius);
this.max_sradius = max(this.sradius);
}
_render(ctx, indices, data) {
const { sx, sy, sradius, start_angle, end_angle } = data ?? this;
const anticlock = this.model.direction == "anticlock";
for (const i of indices) {
const sx_i = sx[i];
const sy_i = sy[i];
const sradius_i = sradius[i];
const start_angle_i = start_angle.get(i);
const end_angle_i = end_angle.get(i);
if (!isFinite(sx_i + sy_i + sradius_i + start_angle_i + end_angle_i))
continue;
ctx.beginPath();
ctx.arc(sx_i, sy_i, sradius_i, start_angle_i, end_angle_i, anticlock);
ctx.lineTo(sx_i, sy_i);
ctx.closePath();
this.visuals.fill.apply(ctx, i);
this.visuals.hatch.apply(ctx, i);
this.visuals.line.apply(ctx, i);
}
}
_hit_point(geometry) {
let dist, sx0, sx1, sy0, sy1;
const { sx, sy } = geometry;
const x = this.renderer.xscale.invert(sx);
const y = this.renderer.yscale.invert(sy);
// check diameter first
sx0 = sx - this.max_sradius;
sx1 = sx + this.max_sradius;
const [x0, x1] = this.renderer.xscale.r_invert(sx0, sx1);
sy0 = sy - this.max_sradius;
sy1 = sy + this.max_sradius;
const [y0, y1] = this.renderer.yscale.r_invert(sy0, sy1);
const candidates = [];
for (const i of this.index.indices({ x0, x1, y0, y1 })) {
const r2 = this.sradius[i] ** 2;
[sx0, sx1] = this.renderer.xscale.r_compute(x, this._x[i]);
[sy0, sy1] = this.renderer.yscale.r_compute(y, this._y[i]);
dist = (sx0 - sx1) ** 2 + (sy0 - sy1) ** 2;
if (dist <= r2) {
candidates.push(i);
}
}
const anticlock = this.model.direction == "anticlock";
const indices = [];
for (const i of candidates) {
// NOTE: minus the angle because JS uses non-mathy convention for angles
const angle = Math.atan2(sy - this.sy[i], sx - this.sx[i]);
if (angle_between(-angle, -this.start_angle.get(i), -this.end_angle.get(i), anticlock)) {
indices.push(i);
}
}
return new Selection({ indices });
}
draw_legend_for_index(ctx, bbox, index) {
generic_area_vector_legend(this.visuals, ctx, bbox, index);
}
scenterxy(i) {
const r = this.sradius[i] / 2;
const a = (this.start_angle.get(i) + this.end_angle.get(i)) / 2;
const scx = this.sx[i] + r * Math.cos(a);
const scy = this.sy[i] + r * Math.sin(a);
return [scx, scy];
}
}
WedgeView.__name__ = "WedgeView";
export class Wedge extends XYGlyph {
constructor(attrs) {
super(attrs);
}
}
_a = Wedge;
Wedge.__name__ = "Wedge";
(() => {
_a.prototype.default_view = WedgeView;
_a.mixins([LineVector, FillVector, HatchVector]);
_a.define(({}) => ({
direction: [Direction, "anticlock"],
radius: [p.DistanceSpec, { field: "radius" }],
start_angle: [p.AngleSpec, { field: "start_angle" }],
end_angle: [p.AngleSpec, { field: "end_angle" }],
}));
})();
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