react-native-circular-chart-current
Version:
circular chart for react-native.
41 lines (40 loc) • 1.83 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.PolarCoordinate = void 0;
var _math = require("../math");
var _Coordinate = require("./Coordinate");
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); }
function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
// https://www.mathsisfun.com/polar-cartesian-coordinates.html
class PolarCoordinate extends _Coordinate.Coordinate {
constructor(_ref) {
let {
coordX,
coordY,
radius,
angle
} = _ref;
super();
_defineProperty(this, "coordX", 0);
_defineProperty(this, "coordY", 0);
_defineProperty(this, "radius", 0);
_defineProperty(this, "angle", 0);
_defineProperty(this, "toCartesian", () => {
const startAngle = this.angle - 90;
const angleInRadians = new _math.Degree(startAngle).toRadian();
return {
x: this.coordX + this.radius * Math.cos(angleInRadians),
y: this.coordY + this.radius * Math.sin(angleInRadians)
};
});
this.coordX = coordX;
this.coordY = coordY;
this.angle = angle;
this.radius = radius;
}
}
exports.PolarCoordinate = PolarCoordinate;
//# sourceMappingURL=PolarCoordinate.js.map