74 lines
2.0 KiB
Plaintext
74 lines
2.0 KiB
Plaintext
"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 = otfContours2ttfContours;
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var _bezierCubic2Q = _interopRequireDefault(require("../../math/bezierCubic2Q2"));
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var _pathCeil = _interopRequireDefault(require("../../graphics/pathCeil"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/**
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* @file otf轮廓转ttf轮廓
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* @author mengke01(kekee000@gmail.com)
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*/
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/**
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* 转换轮廓
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*
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* @param {Array} otfContour otf轮廓
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* @return {Array} ttf轮廓
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*/
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function transformContour(otfContour) {
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var contour = [];
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var prevPoint;
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var curPoint;
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var nextPoint;
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var nextNextPoint;
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contour.push(prevPoint = otfContour[0]);
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for (var i = 1, l = otfContour.length; i < l; i++) {
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curPoint = otfContour[i];
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if (curPoint.onCurve) {
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contour.push(curPoint);
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prevPoint = curPoint;
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}
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// 三次bezier曲线
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else {
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nextPoint = otfContour[i + 1];
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nextNextPoint = i === l - 2 ? otfContour[0] : otfContour[i + 2];
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var bezierArray = (0, _bezierCubic2Q.default)(prevPoint, curPoint, nextPoint, nextNextPoint);
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bezierArray[0][2].onCurve = true;
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contour.push(bezierArray[0][1]);
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contour.push(bezierArray[0][2]);
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// 第二个曲线
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if (bezierArray[1]) {
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bezierArray[1][2].onCurve = true;
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contour.push(bezierArray[1][1]);
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contour.push(bezierArray[1][2]);
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}
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prevPoint = nextNextPoint;
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i += 2;
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}
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}
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return (0, _pathCeil.default)(contour);
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}
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/**
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* otf轮廓转ttf轮廓
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*
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* @param {Array} otfContours otf轮廓数组
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* @return {Array} ttf轮廓
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*/
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function otfContours2ttfContours(otfContours) {
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if (!otfContours || !otfContours.length) {
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return otfContours;
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}
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var contours = [];
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for (var i = 0, l = otfContours.length; i < l; i++) {
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// 这里可能由于转换错误导致空轮廓，需要去除
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if (otfContours[i][0]) {
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contours.push(transformContour(otfContours[i]));
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}
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}
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return contours;
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} |