js-angusj-clipper/web/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 += PathToNativePath_1.getNofItemsForPath(myPaths[i]);
    }
    var heapBytes = mem_1.mallocDoubleArray(nativeClipperLib, nofItems);
    heapBytes[0] = nofPaths;
    var ptr = 1;
    for (var i = 0; i < nofPaths; i++) {
        var path = myPaths[i];
        ptr = 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) {
        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 = PathToNativePath_1.doubleArrayToPath(nativeClipperLib, array, false, arrayI);
        paths[i] = result.path;
        arrayI = result.ptrEnd;
    }
    if (_freeDoubleArray) {
        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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xuZXhwb3J0IGZ1bmN0aW9uIHBhdGhzVG9OYXRpdmVQYXRocyhcclxuICBuYXRpdmVDbGlwcGVyTGliOiBOYXRpdmVDbGlwcGVyTGliSW5zdGFuY2UsXHJcbiAgcGF0aHM6IFJlYWRvbmx5UGF0aHNcclxuKTogTmF0aXZlUGF0aHMge1xyXG4gIGNvbnN0IGFycmF5ID0gcGF0aHNUb0RvdWJsZUFycmF5KG5hdGl2ZUNsaXBwZXJMaWIsIHBhdGhzKTtcclxuICByZXR1cm4gZG91YmxlQXJyYXlUb05hdGl2ZVBhdGhzKG5hdGl2ZUNsaXBwZXJMaWIsIGFycmF5LCB0cnVlKTtcclxufVxyXG5cclxuLy8gYysrIHRvIGpzXHJcblxyXG5leHBvcnQgZnVuY3Rpb24gbmF0aXZlUGF0aHNUb0RvdWJsZUFycmF5KFxyXG4gIG5hdGl2ZUNsaXBwZXJMaWI6IE5hdGl2ZUNsaXBwZXJMaWJJbnN0YW5jZSxcclxuICBuYXRpdmVQYXRoczogTmF0aXZlUGF0aHMsXHJcbiAgZnJlZU5hdGl2ZVBhdGhzOiBib29sZWFuXHJcbik6IEZsb2F0NjRBcnJheSB7XHJcbiAgY29uc3QgYXJyYXkgPSBuYXRpdmVDbGlwcGVyTGliLmZyb21QYXRocyhuYXRpdmVQYXRocyk7XHJcbiAgaWYgKGZyZWVOYXRpdmVQYXRocykge1xyXG4gICAgbmF0aXZlUGF0aHMuZGVsZXRlKCk7XHJcbiAgfVxyXG4gIHJldHVybiBhcnJheTtcclxufVxyXG5cclxuZXhwb3J0IGZ1bmN0aW9uIGRvdWJsZUFycmF5VG9QYXRocyhcclxuICBuYXRpdmVDbGlwcGVyTGliOiBOYXRpdmVDbGlwcGVyTGliSW5zdGFuY2UsXHJcbiAgYXJyYXk6IEZsb2F0NjRBcnJheSxcclxuICBfZnJlZURvdWJsZUFycmF5OiBib29sZWFuXHJcbik6IFBhdGhzIHtcclxuICBjb25zdCBsZW4gPSBhcnJheVswXTtcclxuICBjb25zdCBwYXRoczogUGF0aFtdID0gW107XHJcbiAgcGF0aHMubGVuZ3RoID0gbGVuO1xyXG5cclxuICBsZXQgYXJyYXlJID0gMTtcclxuICBmb3IgKGxldCBpID0gMDsgaSA8IGxlbjsgaSsrKSB7XHJcbiAgICBjb25zdCByZXN1bHQgPSBkb3VibGVBcnJheVRvUGF0aChuYXRpdmVDbGlwcGVyTGliLCBhcnJheSwgZmFsc2UsIGFycmF5SSk7XHJcbiAgICBwYXRoc1tpXSA9IHJlc3VsdC5wYXRoO1xyXG4gICAgYXJyYXlJID0gcmVzdWx0LnB0ckVuZDtcclxuICB9XHJcblxyXG4gIGlmIChfZnJlZURvdWJsZUFycmF5KSB7XHJcbiAgICBmcmVlVHlwZWRBcnJheShuYXRpdmVDbGlwcGVyTGliLCBhcnJheSk7XHJcbiAgfVxyXG5cclxuICByZXR1cm4gcGF0aHM7XHJcbn1cclxuXHJcbmV4cG9ydCBmdW5jdGlvbiBuYXRpdmVQYXRoc1RvUGF0aHMoXHJcbiAgbmF0aXZlQ2xpcHBlckxpYjogTmF0aXZlQ2xpcHBlckxpYkluc3RhbmNlLFxyXG4gIG5hdGl2ZVBhdGhzOiBOYXRpdmVQYXRocyxcclxuICBmcmVlTmF0aXZlUGF0aHM6IGJvb2xlYW5cclxuKTogUGF0aHMge1xyXG4gIGNvbnN0IGFycmF5ID0gbmF0aXZlUGF0aHNUb0RvdWJsZUFycmF5KG5hdGl2ZUNsaXBwZXJMaWIsIG5hdGl2ZVBhdGhzLCBmcmVlTmF0aXZlUGF0aHMpO1xyXG4gIHJldHVybiBkb3VibGVBcnJheVRvUGF0aHMobmF0aXZlQ2xpcHBlckxpYiwgYXJyYXksIHRydWUpO1xyXG59XHJcbiJdfQ==