victory-vendor
Version:
Vendored dependencies for Victory
69 lines (68 loc) • 1.87 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.Cardinal = Cardinal;
exports.default = void 0;
exports.point = point;
function point(that, x, y) {
that._context.bezierCurveTo(that._x1 + that._k * (that._x2 - that._x0), that._y1 + that._k * (that._y2 - that._y0), that._x2 + that._k * (that._x1 - x), that._y2 + that._k * (that._y1 - y), that._x2, that._y2);
}
function Cardinal(context, tension) {
this._context = context;
this._k = (1 - tension) / 6;
}
Cardinal.prototype = {
areaStart: function () {
this._line = 0;
},
areaEnd: function () {
this._line = NaN;
},
lineStart: function () {
this._x0 = this._x1 = this._x2 = this._y0 = this._y1 = this._y2 = NaN;
this._point = 0;
},
lineEnd: function () {
switch (this._point) {
case 2:
this._context.lineTo(this._x2, this._y2);
break;
case 3:
point(this, this._x1, this._y1);
break;
}
if (this._line || this._line !== 0 && this._point === 1) this._context.closePath();
this._line = 1 - this._line;
},
point: function (x, y) {
x = +x, y = +y;
switch (this._point) {
case 0:
this._point = 1;
this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y);
break;
case 1:
this._point = 2;
this._x1 = x, this._y1 = y;
break;
case 2:
this._point = 3;
// falls through
default:
point(this, x, y);
break;
}
this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;
this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;
}
};
var _default = exports.default = function custom(tension) {
function cardinal(context) {
return new Cardinal(context, tension);
}
cardinal.tension = function (tension) {
return custom(+tension);
};
return cardinal;
}(0);