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Co-Authored-By: 狸花猫/Claude-Qwen3.6-Plus 🐾
86 lines
3.0 KiB
JavaScript
86 lines
3.0 KiB
JavaScript
import { __assign, __extends } from "tslib";
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import { each, isArray, isObject } from '@antv/util';
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import { SVG_ATTR_MAP } from '../constant';
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import ShapeBase from './base';
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var Path = /** @class */ (function (_super) {
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__extends(Path, _super);
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function Path() {
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var _this = _super !== null && _super.apply(this, arguments) || this;
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_this.type = 'path';
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_this.canFill = true;
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_this.canStroke = true;
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return _this;
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}
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Path.prototype.getDefaultAttrs = function () {
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var attrs = _super.prototype.getDefaultAttrs.call(this);
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return __assign(__assign({}, attrs), { startArrow: false, endArrow: false });
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};
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Path.prototype.createPath = function (context, targetAttrs) {
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var _this = this;
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var attrs = this.attr();
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var el = this.get('el');
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each(targetAttrs || attrs, function (value, attr) {
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if (attr === 'path' && isArray(value)) {
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el.setAttribute('d', _this._formatPath(value));
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}
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else if (attr === 'startArrow' || attr === 'endArrow') {
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if (value) {
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var id = isObject(value)
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? context.addArrow(attrs, SVG_ATTR_MAP[attr])
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: context.getDefaultArrow(attrs, SVG_ATTR_MAP[attr]);
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el.setAttribute(SVG_ATTR_MAP[attr], "url(#" + id + ")");
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}
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else {
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el.removeAttribute(SVG_ATTR_MAP[attr]);
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}
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}
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else if (SVG_ATTR_MAP[attr]) {
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el.setAttribute(SVG_ATTR_MAP[attr], value);
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}
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});
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};
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Path.prototype._formatPath = function (value) {
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var newValue = value
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.map(function (path) {
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return path.join(' ');
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})
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.join('');
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if (~newValue.indexOf('NaN')) {
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return '';
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}
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return newValue;
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};
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/**
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* Get total length of path
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* 尽管通过浏览器的 SVGPathElement.getTotalLength() 接口获取的 path 长度，
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* 与 Canvas 版本通过数学计算的方式得到的长度有一些细微差异，但最大误差在个位数像素，精度上可以能接受
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* @return {number} length
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*/
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Path.prototype.getTotalLength = function () {
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var el = this.get('el');
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return el ? el.getTotalLength() : null;
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};
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/**
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* Get point according to ratio
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* @param {number} ratio
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* @return {Point} point
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*/
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Path.prototype.getPoint = function (ratio) {
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var el = this.get('el');
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var totalLength = this.getTotalLength();
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// @see https://github.com/antvis/g/issues/634
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if (totalLength === 0) {
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return null;
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}
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var point = el ? el.getPointAtLength(ratio * totalLength) : null;
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return point
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? {
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x: point.x,
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y: point.y,
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}
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: null;
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};
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return Path;
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}(ShapeBase));
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export default Path;
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//# sourceMappingURL=path.js.map
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