js-angusj-clipper/universal/native/PathsToNativePaths.js

Polygon and line clipping and offsetting library for Javascript / Typescript - a port of Angus Johnson's clipper to WebAssembly / Asm.JS

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.nativePathsToPaths = exports.doubleArrayToPaths = exports.nativePathsToDoubleArray = exports.pathsToNativePaths = exports.doubleArrayToNativePaths = exports.pathsToDoubleArray = void 0;
var mem_1 = require("./mem");
var PathToNativePath_1 = require("./PathToNativePath");
// js to c++
function pathsToDoubleArray(nativeClipperLib, myPaths) {
    var nofPaths = myPaths.length;
    // first calculate nof items required
    var nofItems = 1; // for path count
    for (var i = 0; i < nofPaths; i++) {
        nofItems += (0, PathToNativePath_1.getNofItemsForPath)(myPaths[i]);
    }
    var heapBytes = (0, mem_1.mallocDoubleArray)(nativeClipperLib, nofItems);
    heapBytes[0] = nofPaths;
    var ptr = 1;
    for (var i = 0; i < nofPaths; i++) {
        var path = myPaths[i];
        ptr = (0, PathToNativePath_1.writePathToDoubleArray)(path, heapBytes, ptr);
    }
    return heapBytes;
}
exports.pathsToDoubleArray = pathsToDoubleArray;
function doubleArrayToNativePaths(nativeClipperLib, array, freeArray) {
    var p = new nativeClipperLib.Paths();
    nativeClipperLib.toPaths(p, array.byteOffset);
    if (freeArray) {
        (0, mem_1.freeTypedArray)(nativeClipperLib, array);
    }
    return p;
}
exports.doubleArrayToNativePaths = doubleArrayToNativePaths;
function pathsToNativePaths(nativeClipperLib, paths) {
    var array = pathsToDoubleArray(nativeClipperLib, paths);
    return doubleArrayToNativePaths(nativeClipperLib, array, true);
}
exports.pathsToNativePaths = pathsToNativePaths;
// c++ to js
function nativePathsToDoubleArray(nativeClipperLib, nativePaths, freeNativePaths) {
    var array = nativeClipperLib.fromPaths(nativePaths);
    if (freeNativePaths) {
        nativePaths.delete();
    }
    return array;
}
exports.nativePathsToDoubleArray = nativePathsToDoubleArray;
function doubleArrayToPaths(nativeClipperLib, array, _freeDoubleArray) {
    var len = array[0];
    var paths = [];
    paths.length = len;
    var arrayI = 1;
    for (var i = 0; i < len; i++) {
        var result = (0, PathToNativePath_1.doubleArrayToPath)(nativeClipperLib, array, false, arrayI);
        paths[i] = result.path;
        arrayI = result.ptrEnd;
    }
    if (_freeDoubleArray) {
        (0, mem_1.freeTypedArray)(nativeClipperLib, array);
    }
    return paths;
}
exports.doubleArrayToPaths = doubleArrayToPaths;
function nativePathsToPaths(nativeClipperLib, nativePaths, freeNativePaths) {
    var array = nativePathsToDoubleArray(nativeClipperLib, nativePaths, freeNativePaths);
    return doubleArrayToPaths(nativeClipperLib, array, true);
}
exports.nativePathsToPaths = nativePathsToPaths;
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F0aXZlQ2xpcHBlckxpYkluc3RhbmNlLFxuICBwYXRoczogUmVhZG9ubHlQYXRoc1xuKTogTmF0aXZlUGF0aHMge1xuICBjb25zdCBhcnJheSA9IHBhdGhzVG9Eb3VibGVBcnJheShuYXRpdmVDbGlwcGVyTGliLCBwYXRocyk7XG4gIHJldHVybiBkb3VibGVBcnJheVRvTmF0aXZlUGF0aHMobmF0aXZlQ2xpcHBlckxpYiwgYXJyYXksIHRydWUpO1xufVxuXG4vLyBjKysgdG8ganNcblxuZXhwb3J0IGZ1bmN0aW9uIG5hdGl2ZVBhdGhzVG9Eb3VibGVBcnJheShcbiAgbmF0aXZlQ2xpcHBlckxpYjogTmF0aXZlQ2xpcHBlckxpYkluc3RhbmNlLFxuICBuYXRpdmVQYXRoczogTmF0aXZlUGF0aHMsXG4gIGZyZWVOYXRpdmVQYXRoczogYm9vbGVhblxuKTogRmxvYXQ2NEFycmF5IHtcbiAgY29uc3QgYXJyYXkgPSBuYXRpdmVDbGlwcGVyTGliLmZyb21QYXRocyhuYXRpdmVQYXRocyk7XG4gIGlmIChmcmVlTmF0aXZlUGF0aHMpIHtcbiAgICBuYXRpdmVQYXRocy5kZWxldGUoKTtcbiAgfVxuICByZXR1cm4gYXJyYXk7XG59XG5cbmV4cG9ydCBmdW5jdGlvbiBkb3VibGVBcnJheVRvUGF0aHMoXG4gIG5hdGl2ZUNsaXBwZXJMaWI6IE5hdGl2ZUNsaXBwZXJMaWJJbnN0YW5jZSxcbiAgYXJyYXk6IEZsb2F0NjRBcnJheSxcbiAgX2ZyZWVEb3VibGVBcnJheTogYm9vbGVhblxuKTogUGF0aHMge1xuICBjb25zdCBsZW4gPSBhcnJheVswXTtcbiAgY29uc3QgcGF0aHM6IFBhdGhbXSA9IFtdO1xuICBwYXRocy5sZW5ndGggPSBsZW47XG5cbiAgbGV0IGFycmF5SSA9IDE7XG4gIGZvciAobGV0IGkgPSAwOyBpIDwgbGVuOyBpKyspIHtcbiAgICBjb25zdCByZXN1bHQgPSBkb3VibGVBcnJheVRvUGF0aChuYXRpdmVDbGlwcGVyTGliLCBhcnJheSwgZmFsc2UsIGFycmF5SSk7XG4gICAgcGF0aHNbaV0gPSByZXN1bHQucGF0aDtcbiAgICBhcnJheUkgPSByZXN1bHQucHRyRW5kO1xuICB9XG5cbiAgaWYgKF9mcmVlRG91YmxlQXJyYXkpIHtcbiAgICBmcmVlVHlwZWRBcnJheShuYXRpdmVDbGlwcGVyTGliLCBhcnJheSk7XG4gIH1cblxuICByZXR1cm4gcGF0aHM7XG59XG5cbmV4cG9ydCBmdW5jdGlvbiBuYXRpdmVQYXRoc1RvUGF0aHMoXG4gIG5hdGl2ZUNsaXBwZXJMaWI6IE5hdGl2ZUNsaXBwZXJMaWJJbnN0YW5jZSxcbiAgbmF0aXZlUGF0aHM6IE5hdGl2ZVBhdGhzLFxuICBmcmVlTmF0aXZlUGF0aHM6IGJvb2xlYW5cbik6IFBhdGhzIHtcbiAgY29uc3QgYXJyYXkgPSBuYXRpdmVQYXRoc1RvRG91YmxlQXJyYXkobmF0aXZlQ2xpcHBlckxpYiwgbmF0aXZlUGF0aHMsIGZyZWVOYXRpdmVQYXRocyk7XG4gIHJldHVybiBkb3VibGVBcnJheVRvUGF0aHMobmF0aXZlQ2xpcHBlckxpYiwgYXJyYXksIHRydWUpO1xufVxuIl19