45 lines
1.2 KiB
JavaScript
45 lines
1.2 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports["default"] = void 0;
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/**
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* Apply the transforms to the polyline.
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*
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* @param polyline the polyline
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* @param transform the transforms array
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* @returns the transformed polyline
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*/
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var _default = function _default(polyline, transforms) {
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transforms.forEach(function (transform) {
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polyline = polyline.map(function (p) {
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// Use a copy to avoid side effects
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var p2 = [p[0], p[1]];
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if (transform.scaleX) {
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p2[0] = p2[0] * transform.scaleX;
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}
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if (transform.scaleY) {
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p2[1] = p2[1] * transform.scaleY;
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}
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if (transform.rotation) {
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var angle = transform.rotation / 180 * Math.PI;
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p2 = [p2[0] * Math.cos(angle) - p2[1] * Math.sin(angle), p2[1] * Math.cos(angle) + p2[0] * Math.sin(angle)];
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}
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if (transform.x) {
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p2[0] = p2[0] + transform.x;
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}
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if (transform.y) {
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p2[1] = p2[1] + transform.y;
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}
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// Observed once in a sample DXF - some cad applications
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// use negative extruxion Z for flipping
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if (transform.extrusionZ === -1) {
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p2[0] = -p2[0];
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}
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return p2;
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});
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});
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return polyline;
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};
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exports["default"] = _default; |