plotboilerplate
Version:
A simple javascript plotting boilerplate for 2d stuff.
109 lines • 4.63 kB
JavaScript
;
/**
* @classdesc The pentagon tile from the Girih set.
*
* @requires Bounds
* @requires GirihTile
* @requires Polygon
* @requires TileType
* @requires Vertex
*
* @author Ikaros Kappler
* @date 2013-11-27
* @modified 2014-04-05 Ikaros Kappler (member array outerTilePolygons added).
* @modified 2015-03-19 Ikaros Kappler (added toSVG()).
* @modified 2020-10-31 Refactored to work with PlotBoilerplate.
* @modified 2020-11-13 Ported from vanilla JS to TypeScript.
* @version 2.0.1-alpha
* @file GirihPentagon
* @public
**/
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.GirihPentagon = void 0;
var GirihTile_1 = require("./GirihTile");
var Polygon_1 = require("../../Polygon");
var GirihPentagon = /** @class */ (function (_super) {
__extends(GirihPentagon, _super);
/**
* @constructor
* @extends GirihTile
* @name GirihPentagon
* @param {Vertex} position
* @param {number} edgeLength
*/
function GirihPentagon(position, edgeLength) {
var _this = _super.call(this, position, edgeLength, GirihTile_1.TileType.PENTAGON) || this;
// Overwrite the default symmetries:
// the pentagon tile has a 72° symmetry (2/10 * 360°)
_this.uniqueSymmetries = 2;
// Init the actual pentagon shape with the passed size:
// Divide the full circle into 5 sections (we want to make a regular pentagon).
var theta = (Math.PI * 2) / 5.0;
// Compute the 'radius' using pythagoras
var radius = Math.sqrt(Math.pow(_this.edgeLength / 2, 2)
+
Math.pow(1 / Math.tan(theta / 2) * _this.edgeLength / 2, 2));
for (var i = 0; i < 5; i++) {
_this.addVertex(position.clone().addY(-radius).rotate(theta / 2 + i * theta, position));
}
_this.textureSource.min.x = 7 / 500.0;
_this.textureSource.min.y = (303) / 460.0;
_this.textureSource.max.x = _this.textureSource.min.x + 157 / 500.0;
_this.textureSource.max.y = _this.textureSource.min.y + (150) / 460.0;
_this.baseBounds = _this.getBounds();
_this._buildInnerPolygons(_this.edgeLength);
_this._buildOuterPolygons(_this.edgeLength); // Only call AFTER the inner polygons were built!
return _this;
}
;
/**
* @override
*/
GirihPentagon.prototype.clone = function () {
return new GirihPentagon(this.position.clone(), this.edgeLength).rotate(this.rotation);
};
;
GirihPentagon.prototype._buildInnerPolygons = function (edgeLength) {
// Connect all edges half-the-way
var innerTile = new Polygon_1.Polygon();
for (var i = 0; i < this.vertices.length; i++) {
innerTile.addVertex(this.getVertexAt(i).clone().scale(0.5, this.getVertexAt(i + 1)));
// ... make linear approximation instead
innerTile.addVertex(this.getVertexAt(i + 1).clone().scale(0.5, this.position));
}
this.innerTilePolygons.push(innerTile);
};
;
GirihPentagon.prototype._buildOuterPolygons = function (edgeLength) {
for (var i = 0; i < this.vertices.length; i++) {
var indexA = i;
var indexB = i * 2;
// The triangle
var outerTile = new Polygon_1.Polygon();
outerTile.addVertex(this.getVertexAt(indexA + 1).clone());
outerTile.addVertex(this.innerTilePolygons[0].getVertexAt(indexB).clone());
outerTile.addVertex(this.innerTilePolygons[0].getVertexAt(indexB + 1).clone());
outerTile.addVertex(this.innerTilePolygons[0].getVertexAt(indexB + 2).clone());
this.outerTilePolygons.push(outerTile);
}
};
;
return GirihPentagon;
}(GirihTile_1.GirihTile));
exports.GirihPentagon = GirihPentagon;
//# sourceMappingURL=GirihPentagon.js.map