@quartic/bokehjs
Version:
Interactive, novel data visualization
79 lines (78 loc) • 3.26 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var _qbb, extend = function (child, parent) { for (var key in parent) {
if (hasProp.call(parent, key))
child[key] = parent[key];
} function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; }, hasProp = {}.hasOwnProperty;
var spatial_1 = require("core/util/spatial");
var glyph_1 = require("./glyph");
_qbb = function (u, v, w) {
var bd, t;
if (v === (u + w) / 2) {
return [u, w];
}
else {
t = (u - v) / (u - 2 * v + w);
bd = u * Math.pow(1 - t, 2) + 2 * v * (1 - t) * t + w * Math.pow(t, 2);
return [Math.min(u, w, bd), Math.max(u, w, bd)];
}
};
exports.QuadraticView = (function (superClass) {
extend(QuadraticView, superClass);
function QuadraticView() {
return QuadraticView.__super__.constructor.apply(this, arguments);
}
QuadraticView.prototype._index_data = function () {
var i, j, points, ref, ref1, ref2, x0, x1, y0, y1;
points = [];
for (i = j = 0, ref = this._x0.length; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) {
if (isNaN(this._x0[i] + this._x1[i] + this._y0[i] + this._y1[i] + this._cx[i] + this._cy[i])) {
continue;
}
ref1 = _qbb(this._x0[i], this._cx[i], this._x1[i]), x0 = ref1[0], x1 = ref1[1];
ref2 = _qbb(this._y0[i], this._cy[i], this._y1[i]), y0 = ref2[0], y1 = ref2[1];
points.push({
minX: x0,
minY: y0,
maxX: x1,
maxY: y1,
i: i
});
}
return new spatial_1.RBush(points);
};
QuadraticView.prototype._render = function (ctx, indices, arg) {
var i, j, len, results, scx, scy, sx0, sx1, sy0, sy1;
sx0 = arg.sx0, sy0 = arg.sy0, sx1 = arg.sx1, sy1 = arg.sy1, scx = arg.scx, scy = arg.scy;
if (this.visuals.line.doit) {
results = [];
for (j = 0, len = indices.length; j < len; j++) {
i = indices[j];
if (isNaN(sx0[i] + sy0[i] + sx1[i] + sy1[i] + scx[i] + scy[i])) {
continue;
}
ctx.beginPath();
ctx.moveTo(sx0[i], sy0[i]);
ctx.quadraticCurveTo(scx[i], scy[i], sx1[i], sy1[i]);
this.visuals.line.set_vectorize(ctx, i);
results.push(ctx.stroke());
}
return results;
}
};
QuadraticView.prototype.draw_legend_for_index = function (ctx, x0, x1, y0, y1, index) {
return this._generic_line_legend(ctx, x0, x1, y0, y1, index);
};
return QuadraticView;
})(glyph_1.GlyphView);
exports.Quadratic = (function (superClass) {
extend(Quadratic, superClass);
function Quadratic() {
return Quadratic.__super__.constructor.apply(this, arguments);
}
Quadratic.prototype.default_view = exports.QuadraticView;
Quadratic.prototype.type = 'Quadratic';
Quadratic.coords([['x0', 'y0'], ['x1', 'y1'], ['cx', 'cy']]);
Quadratic.mixins(['line']);
return Quadratic;
})(glyph_1.Glyph);