373 lines
12 KiB
JavaScript
373 lines
12 KiB
JavaScript
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import { __extends } from "tslib";
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import Path from '../graphic/Path.js';
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import PathProxy from '../core/PathProxy.js';
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import transformPath from './transformPath.js';
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import { extend } from '../core/util.js';
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var mathSqrt = Math.sqrt;
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var mathSin = Math.sin;
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var mathCos = Math.cos;
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var PI = Math.PI;
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function vMag(v) {
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return Math.sqrt(v[0] * v[0] + v[1] * v[1]);
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}
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;
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function vRatio(u, v) {
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return (u[0] * v[0] + u[1] * v[1]) / (vMag(u) * vMag(v));
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}
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;
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function vAngle(u, v) {
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return (u[0] * v[1] < u[1] * v[0] ? -1 : 1)
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* Math.acos(vRatio(u, v));
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}
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;
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function processArc(x1, y1, x2, y2, fa, fs, rx, ry, psiDeg, cmd, path) {
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var psi = psiDeg * (PI / 180.0);
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var xp = mathCos(psi) * (x1 - x2) / 2.0
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+ mathSin(psi) * (y1 - y2) / 2.0;
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var yp = -1 * mathSin(psi) * (x1 - x2) / 2.0
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+ mathCos(psi) * (y1 - y2) / 2.0;
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var lambda = (xp * xp) / (rx * rx) + (yp * yp) / (ry * ry);
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if (lambda > 1) {
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rx *= mathSqrt(lambda);
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ry *= mathSqrt(lambda);
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}
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var f = (fa === fs ? -1 : 1)
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* mathSqrt((((rx * rx) * (ry * ry))
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- ((rx * rx) * (yp * yp))
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- ((ry * ry) * (xp * xp))) / ((rx * rx) * (yp * yp)
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+ (ry * ry) * (xp * xp))) || 0;
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var cxp = f * rx * yp / ry;
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var cyp = f * -ry * xp / rx;
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var cx = (x1 + x2) / 2.0
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+ mathCos(psi) * cxp
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- mathSin(psi) * cyp;
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var cy = (y1 + y2) / 2.0
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+ mathSin(psi) * cxp
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+ mathCos(psi) * cyp;
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var theta = vAngle([1, 0], [(xp - cxp) / rx, (yp - cyp) / ry]);
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var u = [(xp - cxp) / rx, (yp - cyp) / ry];
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var v = [(-1 * xp - cxp) / rx, (-1 * yp - cyp) / ry];
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var dTheta = vAngle(u, v);
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if (vRatio(u, v) <= -1) {
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dTheta = PI;
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}
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if (vRatio(u, v) >= 1) {
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dTheta = 0;
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}
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if (dTheta < 0) {
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var n = Math.round(dTheta / PI * 1e6) / 1e6;
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dTheta = PI * 2 + (n % 2) * PI;
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}
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path.addData(cmd, cx, cy, rx, ry, theta, dTheta, psi, fs);
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}
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var commandReg = /([mlvhzcqtsa])([^mlvhzcqtsa]*)/ig;
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var numberReg = /-?([0-9]*\.)?[0-9]+([eE]-?[0-9]+)?/g;
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function createPathProxyFromString(data) {
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var path = new PathProxy();
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if (!data) {
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return path;
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}
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var cpx = 0;
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var cpy = 0;
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var subpathX = cpx;
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var subpathY = cpy;
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var prevCmd;
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var CMD = PathProxy.CMD;
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var cmdList = data.match(commandReg);
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if (!cmdList) {
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return path;
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}
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for (var l = 0; l < cmdList.length; l++) {
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var cmdText = cmdList[l];
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var cmdStr = cmdText.charAt(0);
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var cmd = void 0;
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var p = cmdText.match(numberReg) || [];
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var pLen = p.length;
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for (var i = 0; i < pLen; i++) {
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p[i] = parseFloat(p[i]);
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}
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var off = 0;
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while (off < pLen) {
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var ctlPtx = void 0;
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var ctlPty = void 0;
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var rx = void 0;
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var ry = void 0;
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var psi = void 0;
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var fa = void 0;
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var fs = void 0;
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var x1 = cpx;
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var y1 = cpy;
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var len = void 0;
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var pathData = void 0;
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switch (cmdStr) {
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case 'l':
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cpx += p[off++];
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cpy += p[off++];
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cmd = CMD.L;
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path.addData(cmd, cpx, cpy);
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break;
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case 'L':
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cpx = p[off++];
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cpy = p[off++];
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cmd = CMD.L;
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path.addData(cmd, cpx, cpy);
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break;
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case 'm':
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cpx += p[off++];
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cpy += p[off++];
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cmd = CMD.M;
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path.addData(cmd, cpx, cpy);
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subpathX = cpx;
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subpathY = cpy;
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cmdStr = 'l';
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break;
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case 'M':
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cpx = p[off++];
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cpy = p[off++];
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cmd = CMD.M;
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path.addData(cmd, cpx, cpy);
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subpathX = cpx;
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subpathY = cpy;
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cmdStr = 'L';
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break;
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case 'h':
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cpx += p[off++];
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cmd = CMD.L;
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path.addData(cmd, cpx, cpy);
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break;
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case 'H':
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cpx = p[off++];
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cmd = CMD.L;
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path.addData(cmd, cpx, cpy);
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break;
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case 'v':
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cpy += p[off++];
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cmd = CMD.L;
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path.addData(cmd, cpx, cpy);
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break;
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case 'V':
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cpy = p[off++];
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cmd = CMD.L;
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path.addData(cmd, cpx, cpy);
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break;
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case 'C':
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cmd = CMD.C;
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path.addData(cmd, p[off++], p[off++], p[off++], p[off++], p[off++], p[off++]);
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cpx = p[off - 2];
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cpy = p[off - 1];
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break;
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case 'c':
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cmd = CMD.C;
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path.addData(cmd, p[off++] + cpx, p[off++] + cpy, p[off++] + cpx, p[off++] + cpy, p[off++] + cpx, p[off++] + cpy);
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cpx += p[off - 2];
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cpy += p[off - 1];
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break;
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case 'S':
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ctlPtx = cpx;
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ctlPty = cpy;
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len = path.len();
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pathData = path.data;
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if (prevCmd === CMD.C) {
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ctlPtx += cpx - pathData[len - 4];
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ctlPty += cpy - pathData[len - 3];
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}
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cmd = CMD.C;
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x1 = p[off++];
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y1 = p[off++];
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cpx = p[off++];
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cpy = p[off++];
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path.addData(cmd, ctlPtx, ctlPty, x1, y1, cpx, cpy);
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break;
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case 's':
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ctlPtx = cpx;
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ctlPty = cpy;
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len = path.len();
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pathData = path.data;
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if (prevCmd === CMD.C) {
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ctlPtx += cpx - pathData[len - 4];
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ctlPty += cpy - pathData[len - 3];
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}
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cmd = CMD.C;
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x1 = cpx + p[off++];
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y1 = cpy + p[off++];
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cpx += p[off++];
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cpy += p[off++];
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path.addData(cmd, ctlPtx, ctlPty, x1, y1, cpx, cpy);
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break;
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case 'Q':
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x1 = p[off++];
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y1 = p[off++];
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cpx = p[off++];
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cpy = p[off++];
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cmd = CMD.Q;
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path.addData(cmd, x1, y1, cpx, cpy);
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break;
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case 'q':
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x1 = p[off++] + cpx;
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y1 = p[off++] + cpy;
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cpx += p[off++];
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cpy += p[off++];
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cmd = CMD.Q;
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path.addData(cmd, x1, y1, cpx, cpy);
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break;
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case 'T':
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ctlPtx = cpx;
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ctlPty = cpy;
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len = path.len();
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pathData = path.data;
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if (prevCmd === CMD.Q) {
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ctlPtx += cpx - pathData[len - 4];
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ctlPty += cpy - pathData[len - 3];
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}
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cpx = p[off++];
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cpy = p[off++];
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cmd = CMD.Q;
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path.addData(cmd, ctlPtx, ctlPty, cpx, cpy);
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break;
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case 't':
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ctlPtx = cpx;
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ctlPty = cpy;
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len = path.len();
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pathData = path.data;
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if (prevCmd === CMD.Q) {
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ctlPtx += cpx - pathData[len - 4];
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ctlPty += cpy - pathData[len - 3];
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}
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cpx += p[off++];
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cpy += p[off++];
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cmd = CMD.Q;
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path.addData(cmd, ctlPtx, ctlPty, cpx, cpy);
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break;
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case 'A':
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rx = p[off++];
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ry = p[off++];
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psi = p[off++];
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fa = p[off++];
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fs = p[off++];
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x1 = cpx, y1 = cpy;
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cpx = p[off++];
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cpy = p[off++];
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cmd = CMD.A;
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processArc(x1, y1, cpx, cpy, fa, fs, rx, ry, psi, cmd, path);
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break;
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case 'a':
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rx = p[off++];
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ry = p[off++];
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psi = p[off++];
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fa = p[off++];
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fs = p[off++];
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x1 = cpx, y1 = cpy;
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cpx += p[off++];
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cpy += p[off++];
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cmd = CMD.A;
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processArc(x1, y1, cpx, cpy, fa, fs, rx, ry, psi, cmd, path);
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break;
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}
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}
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if (cmdStr === 'z' || cmdStr === 'Z') {
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cmd = CMD.Z;
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path.addData(cmd);
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cpx = subpathX;
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cpy = subpathY;
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}
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prevCmd = cmd;
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}
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path.toStatic();
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return path;
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}
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var SVGPath = (function (_super) {
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__extends(SVGPath, _super);
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function SVGPath() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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SVGPath.prototype.applyTransform = function (m) { };
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return SVGPath;
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}(Path));
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function isPathProxy(path) {
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return path.setData != null;
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}
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function createPathOptions(str, opts) {
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var pathProxy = createPathProxyFromString(str);
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var innerOpts = extend({}, opts);
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innerOpts.buildPath = function (path) {
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if (isPathProxy(path)) {
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path.setData(pathProxy.data);
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var ctx = path.getContext();
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if (ctx) {
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path.rebuildPath(ctx, 1);
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}
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}
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else {
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var ctx = path;
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pathProxy.rebuildPath(ctx, 1);
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}
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};
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innerOpts.applyTransform = function (m) {
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transformPath(pathProxy, m);
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this.dirtyShape();
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};
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return innerOpts;
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}
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export function createFromString(str, opts) {
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return new SVGPath(createPathOptions(str, opts));
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}
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export function extendFromString(str, defaultOpts) {
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var innerOpts = createPathOptions(str, defaultOpts);
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var Sub = (function (_super) {
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__extends(Sub, _super);
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function Sub(opts) {
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var _this = _super.call(this, opts) || this;
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_this.applyTransform = innerOpts.applyTransform;
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_this.buildPath = innerOpts.buildPath;
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return _this;
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}
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return Sub;
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}(SVGPath));
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return Sub;
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}
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export function mergePath(pathEls, opts) {
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var pathList = [];
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var len = pathEls.length;
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for (var i = 0; i < len; i++) {
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var pathEl = pathEls[i];
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pathList.push(pathEl.getUpdatedPathProxy(true));
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}
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var pathBundle = new Path(opts);
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pathBundle.createPathProxy();
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pathBundle.buildPath = function (path) {
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if (isPathProxy(path)) {
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path.appendPath(pathList);
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var ctx = path.getContext();
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if (ctx) {
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path.rebuildPath(ctx, 1);
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}
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}
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};
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return pathBundle;
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}
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export function clonePath(sourcePath, opts) {
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opts = opts || {};
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var path = new Path();
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if (sourcePath.shape) {
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path.setShape(sourcePath.shape);
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}
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path.setStyle(sourcePath.style);
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if (opts.bakeTransform) {
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transformPath(path.path, sourcePath.getComputedTransform());
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}
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else {
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if (opts.toLocal) {
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path.setLocalTransform(sourcePath.getComputedTransform());
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}
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else {
|
||
|
|
path.copyTransform(sourcePath);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
path.buildPath = sourcePath.buildPath;
|
||
|
|
path.applyTransform = path.applyTransform;
|
||
|
|
path.z = sourcePath.z;
|
||
|
|
path.z2 = sourcePath.z2;
|
||
|
|
path.zlevel = sourcePath.zlevel;
|
||
|
|
return path;
|
||
|
|
}
|