381 lines
17 KiB
JavaScript
381 lines
17 KiB
JavaScript
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const {svg2cagX, svg2cagY, cagLengthX, cagLengthY, cagLengthP, reflect, groupValue} = require('./helpers')
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const {cssPxUnit} = require('./constants')
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const shapesMap = function (obj, codify, params) {
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const {level, indent, on, svgUnitsPmm, svgUnitsX, svgUnitsY, svgUnitsV, svgGroups} = params
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const types = {
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group: (obj) => {
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let code = codify(obj)
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code += indent + 'var ' + on + ' = cag' + (level + 1) + ';\n'
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return code
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},
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rect: (obj, svgUnitsPmm, svgUnitsX, svgUnitsY) => {
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let x = cagLengthX(obj.x, svgUnitsPmm, svgUnitsX)
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let y = (0 - cagLengthY(obj.y, svgUnitsPmm, svgUnitsY))
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const w = cagLengthX(obj.width, svgUnitsPmm, svgUnitsX)
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const h = cagLengthY(obj.height, svgUnitsPmm, svgUnitsY)
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const rx = cagLengthX(obj.rx, svgUnitsPmm, svgUnitsX)
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// const ry = cagLengthY(obj.ry, svgUnitsPmm, svgUnitsY)
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if (w > 0 && h > 0) {
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x = (x + (w / 2)).toFixed(4) // position the object via the center
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y = (y - (h / 2)).toFixed(4) // position the object via the center
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if (rx === 0) {
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return indent + 'var ' + on + ' = CAG.rectangle({center: [' + x + ',' + y + '], radius: [' + w / 2 + ',' + h / 2 + ']});\n'
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} else {
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return indent + 'var ' + on + ' = CAG.roundedRectangle({center: [' + x + ',' + y + '], radius: [' + w / 2 + ',' + h / 2 + '], roundradius: ' + rx + '});\n'
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}
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}
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},
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circle: (obj, svgUnitsPmm, svgUnitsX, svgUnitsY, svgUnitsV) => {
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const x = cagLengthX(obj.x, svgUnitsPmm, svgUnitsX)
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const y = (0 - cagLengthY(obj.y, svgUnitsPmm, svgUnitsY))
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const r = cagLengthP(obj.radius, svgUnitsPmm, svgUnitsV)
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if (r > 0) {
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return indent + 'var ' + on + ' = CAG.circle({center: [' + x + ',' + y + '], radius: ' + r + '});\n'
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}
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},
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ellipse: (obj, svgUnitsPmm, svgUnitsX, svgUnitsY, svgUnitsV) => {
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const rx = cagLengthX(obj.rx, svgUnitsPmm, svgUnitsX)
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const ry = cagLengthY(obj.ry, svgUnitsPmm, svgUnitsY)
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const cx = cagLengthX(obj.cx, svgUnitsPmm, svgUnitsX)
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const cy = (0 - cagLengthY(obj.cy, svgUnitsPmm, svgUnitsY))
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if (rx > 0 && ry > 0) {
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return indent + 'var ' + on + ' = CAG.ellipse({center: [' + cx + ',' + cy + '], radius: [' + rx + ',' + ry + ']});\n'
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}
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},
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line: (obj, svgUnitsPmm, svgUnitsX, svgUnitsY, svgUnitsV) => {
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const x1 = cagLengthX(obj.x1, svgUnitsPmm, svgUnitsX)
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const y1 = (0 - cagLengthY(obj.y1, svgUnitsPmm, svgUnitsY))
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const x2 = cagLengthX(obj.x2, svgUnitsPmm, svgUnitsX)
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const y2 = (0 - cagLengthY(obj.y2, svgUnitsPmm, svgUnitsY))
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let r = cssPxUnit // default
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if ('strokeWidth' in obj) {
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r = cagLengthP(obj.strokeWidth, svgUnitsPmm, svgUnitsV) / 2
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} else {
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const v = groupValue(svgGroups, 'strokeWidth')
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if (v !== null) {
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r = cagLengthP(v, svgUnitsPmm, svgUnitsV) / 2
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}
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}
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let tmpCode = indent + 'var ' + on + ' = new CSG.Path2D([[' + x1 + ',' + y1 + '],[' + x2 + ',' + y2 + ']],false);\n'
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tmpCode += indent + on + ' = ' + on + '.expandToCAG(' + r + ',CSG.defaultResolution2D);\n'
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return tmpCode
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},
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polygon: (obj, svgUnitsPmm, svgUnitsX, svgUnitsY) => {
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let tmpCode = indent + 'var ' + on + ' = new CSG.Path2D([\n'
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for (let j = 0; j < obj.points.length; j++) {
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const p = obj.points[j]
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if ('x' in p && 'y' in p) {
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const x = cagLengthX(p.x, svgUnitsPmm, svgUnitsX)
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const y = (0 - cagLengthY(p.y, svgUnitsPmm, svgUnitsY))
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tmpCode += indent + ' [' + x + ',' + y + '],\n'
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}
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}
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tmpCode += indent + '],true);\n'
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tmpCode += indent + on + ' = ' + on + '.innerToCAG();\n'
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return tmpCode
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},
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polyline: (obj, svgUnitsPmm, svgUnitsX, svgUnitsY, svgUnitsV) => {
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let r = cssPxUnit // default
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if ('strokeWidth' in obj) {
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r = cagLengthP(obj.strokeWidth, svgUnitsPmm, svgUnitsV) / 2
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} else {
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const v = groupValue(svgGroups, 'strokeWidth')
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if (v !== null) {
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r = cagLengthP(v, svgUnitsPmm, svgUnitsV) / 2
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}
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}
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let tmpCode = indent + 'var ' + on + ' = new CSG.Path2D([\n'
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for (let j = 0; j < obj.points.length; j++) {
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const p = obj.points[j]
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if ('x' in p && 'y' in p) {
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var x = cagLengthX(p.x, svgUnitsPmm, svgUnitsX)
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var y = (0 - cagLengthY(p.y, svgUnitsPmm, svgUnitsY))
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tmpCode += indent + ' [' + x + ',' + y + '],\n'
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}
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}
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tmpCode += indent + '],false);\n'
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tmpCode += indent + on + ' = ' + on + '.expandToCAG(' + r + ',CSG.defaultResolution2D);\n'
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return tmpCode
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},
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path
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}
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return types[obj.type](obj, svgUnitsPmm, svgUnitsX, svgUnitsY, svgUnitsV, params, svgGroups)
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}
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module.exports = shapesMap
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function path (obj, svgUnitsPmm, svgUnitsX, svgUnitsY, svgUnitsV, params, svgGroups) {
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const {indent, on} = params
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let tmpCode = indent + 'var ' + on + ' = new CAG();\n'
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let r = cssPxUnit // default
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if ('strokeWidth' in obj) {
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r = cagLengthP(obj.strokeWidth, svgUnitsPmm, svgUnitsV) / 2
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} else {
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const v = groupValue(svgGroups, 'strokeWidth')
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if (v !== null) {
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r = cagLengthP(v, svgUnitsPmm, svgUnitsV) / 2
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}
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}
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// Note: All values are SVG values
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let sx = 0 // starting position
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let sy = 0
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let cx = 0 // current position
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let cy = 0
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let pi = 0 // current path index
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let pathName = on + pi // current path name
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let pc = false // current path closed
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let bx = 0 // 2nd control point from previous C command
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let by = 0 // 2nd control point from previous C command
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let qx = 0 // 2nd control point from previous Q command
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let qy = 0 // 2nd control point from previous Q command
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for (let j = 0; j < obj.commands.length; j++) {
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let co = obj.commands[j]
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let pts = co.p
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// console.log('postion: ['+cx+','+cy+'] before '+co.c);
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switch (co.c) {
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case 'm': // relative move to X,Y
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// special case, if at beginning of path then treat like absolute M
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if (j === 0) {
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cx = 0; cy = 0
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}
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// close the previous path
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if (pi > 0 && pc === false) {
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tmpCode += indent + pathName + ' = ' + pathName + '.expandToCAG(' + r + ',CSG.defaultResolution2D);\n'
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}
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// open a new path
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if (pts.length >= 2) {
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cx = cx + parseFloat(pts.shift())
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cy = cy + parseFloat(pts.shift())
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pi++
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pathName = on + pi
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pc = false
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tmpCode += indent + 'var ' + pathName + ' = new CSG.Path2D([[' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']],false);\n'
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sx = cx; sy = cy
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}
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// optional implicit relative lineTo (cf SVG spec 8.3.2)
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while (pts.length >= 2) {
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cx = cx + parseFloat(pts.shift())
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cy = cy + parseFloat(pts.shift())
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tmpCode += indent + pathName + ' = ' + pathName + '.appendPoint([' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']);\n'
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}
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break
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case 'M': // absolute move to X,Y
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// close the previous path
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if (pi > 0 && pc === false) {
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tmpCode += indent + pathName + ' = ' + pathName + '.expandToCAG(' + r + ',CSG.defaultResolution2D);\n'
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}
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// open a new path
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if (pts.length >= 2) {
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cx = parseFloat(pts.shift())
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cy = parseFloat(pts.shift())
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pi++
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pathName = on + pi
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pc = false
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tmpCode += indent + 'var ' + pathName + ' = new CSG.Path2D([[' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']],false);\n'
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sx = cx; sy = cy
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}
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// optional implicit absolute lineTo (cf SVG spec 8.3.2)
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while (pts.length >= 2) {
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cx = parseFloat(pts.shift())
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cy = parseFloat(pts.shift())
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tmpCode += indent + pathName + ' = ' + pathName + '.appendPoint([' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']);\n'
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}
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break
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case 'a': // relative elliptical arc
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while (pts.length >= 7) {
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let rx = parseFloat(pts.shift())
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let ry = parseFloat(pts.shift())
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let ro = 0 - parseFloat(pts.shift())
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let lf = (pts.shift() === '1')
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let sf = (pts.shift() === '1')
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cx = cx + parseFloat(pts.shift())
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cy = cy + parseFloat(pts.shift())
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tmpCode += indent + pathName + ' = ' + pathName + '.appendArc([' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + '],{xradius: ' + svg2cagX(rx, svgUnitsPmm) + ',yradius: ' + svg2cagY(ry, svgUnitsPmm) + ',xaxisrotation: ' + ro + ',clockwise: ' + sf + ',large: ' + lf + '});\n'
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}
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break
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case 'A': // absolute elliptical arc
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while (pts.length >= 7) {
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let rx = parseFloat(pts.shift())
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let ry = parseFloat(pts.shift())
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let ro = 0 - parseFloat(pts.shift())
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let lf = (pts.shift() === '1')
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let sf = (pts.shift() === '1')
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cx = parseFloat(pts.shift())
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cy = parseFloat(pts.shift())
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tmpCode += indent + pathName + ' = ' + pathName + '.appendArc([' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + '],{xradius: ' + svg2cagX(rx, svgUnitsPmm) + ',yradius: ' + svg2cagY(ry, svgUnitsPmm) + ',xaxisrotation: ' + ro + ',clockwise: ' + sf + ',large: ' + lf + '});\n'
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}
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break
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case 'c': // relative cubic Bézier
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while (pts.length >= 6) {
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let x1 = cx + parseFloat(pts.shift())
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let y1 = cy + parseFloat(pts.shift())
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bx = cx + parseFloat(pts.shift())
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by = cy + parseFloat(pts.shift())
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cx = cx + parseFloat(pts.shift())
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cy = cy + parseFloat(pts.shift())
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tmpCode += indent + pathName + ' = ' + pathName + '.appendBezier([[' + svg2cagX(x1, svgUnitsPmm) + ',' + svg2cagY(y1, svgUnitsPmm) + '],[' + svg2cagX(bx, svgUnitsPmm) + ',' + svg2cagY(by, svgUnitsPmm) + '],[' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']]);\n'
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let rf = reflect(bx, by, cx, cy)
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bx = rf[0]
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by = rf[1]
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}
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break
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case 'C': // absolute cubic Bézier
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while (pts.length >= 6) {
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let x1 = parseFloat(pts.shift())
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let y1 = parseFloat(pts.shift())
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bx = parseFloat(pts.shift())
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by = parseFloat(pts.shift())
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cx = parseFloat(pts.shift())
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cy = parseFloat(pts.shift())
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tmpCode += indent + pathName + ' = ' + pathName + '.appendBezier([[' + svg2cagX(x1, svgUnitsPmm) + ',' + svg2cagY(y1, svgUnitsPmm) + '],[' + svg2cagX(bx, svgUnitsPmm) + ',' + svg2cagY(by, svgUnitsPmm) + '],[' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']]);\n'
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let rf = reflect(bx, by, cx, cy)
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bx = rf[0]
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by = rf[1]
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}
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break
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case 'q': // relative quadratic Bézier
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while (pts.length >= 4) {
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qx = cx + parseFloat(pts.shift())
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qy = cy + parseFloat(pts.shift())
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cx = cx + parseFloat(pts.shift())
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cy = cy + parseFloat(pts.shift())
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tmpCode += indent + pathName + ' = ' + pathName + '.appendBezier([[' + svg2cagX(qx, svgUnitsPmm) + ',' + svg2cagY(qy, svgUnitsPmm) + '],[' + svg2cagX(qx, svgUnitsPmm) + ',' + svg2cagY(qy, svgUnitsPmm) + '],[' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']]);\n'
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let rf = reflect(qx, qy, cx, cy)
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qx = rf[0]
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qy = rf[1]
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}
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break
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case 'Q': // absolute quadratic Bézier
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while (pts.length >= 4) {
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qx = parseFloat(pts.shift())
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qy = parseFloat(pts.shift())
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cx = parseFloat(pts.shift())
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cy = parseFloat(pts.shift())
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tmpCode += indent + pathName + ' = ' + pathName + '.appendBezier([[' + svg2cagX(qx, svgUnitsPmm) + ',' + svg2cagY(qy, svgUnitsPmm) + '],[' + svg2cagX(qx, svgUnitsPmm) + ',' + svg2cagY(qy, svgUnitsPmm) + '],[' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']]);\n'
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let rf = reflect(qx, qy, cx, cy)
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qx = rf[0]
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qy = rf[1]
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}
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break
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case 't': // relative quadratic Bézier shorthand
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while (pts.length >= 2) {
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cx = cx + parseFloat(pts.shift())
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cy = cy + parseFloat(pts.shift())
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tmpCode += indent + pathName + ' = ' + pathName + '.appendBezier([[' + svg2cagX(qx, svgUnitsPmm) + ',' + svg2cagY(qy, svgUnitsPmm) + '],[' + svg2cagX(qx, svgUnitsPmm) + ',' + svg2cagY(qy, svgUnitsPmm) + '],[' + cx + ',' + cy + ']]);\n'
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let rf = reflect(qx, qy, cx, cy)
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qx = rf[0]
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qy = rf[1]
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}
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break
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case 'T': // absolute quadratic Bézier shorthand
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while (pts.length >= 2) {
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cx = parseFloat(pts.shift())
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cy = parseFloat(pts.shift())
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tmpCode += indent + pathName + ' = ' + pathName + '.appendBezier([[' + svg2cagX(qx, svgUnitsPmm) + ',' + svg2cagY(qy, svgUnitsPmm) + '],[' + svg2cagX(qx, svgUnitsPmm) + ',' + svg2cagY(qy, svgUnitsPmm) + '],[' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']]);\n'
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let rf = reflect(qx, qy, cx, cy)
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qx = rf[0]
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qy = rf[1]
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}
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break
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case 's': // relative cubic Bézier shorthand
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while (pts.length >= 4) {
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let x1 = bx // reflection of 2nd control point from previous C
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let y1 = by // reflection of 2nd control point from previous C
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bx = cx + parseFloat(pts.shift())
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by = cy + parseFloat(pts.shift())
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cx = cx + parseFloat(pts.shift())
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cy = cy + parseFloat(pts.shift())
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tmpCode += indent + pathName + ' = ' + pathName + '.appendBezier([[' + svg2cagX(x1, svgUnitsPmm) + ',' + svg2cagY(y1, svgUnitsPmm) + '],[' + svg2cagX(bx, svgUnitsPmm) + ',' + svg2cagY(by, svgUnitsPmm) + '],[' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']]);\n'
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let rf = reflect(bx, by, cx, cy)
|
||
|
bx = rf[0]
|
||
|
by = rf[1]
|
||
|
}
|
||
|
break
|
||
|
case 'S': // absolute cubic Bézier shorthand
|
||
|
while (pts.length >= 4) {
|
||
|
let x1 = bx // reflection of 2nd control point from previous C
|
||
|
let y1 = by // reflection of 2nd control point from previous C
|
||
|
bx = parseFloat(pts.shift())
|
||
|
by = parseFloat(pts.shift())
|
||
|
cx = parseFloat(pts.shift())
|
||
|
cy = parseFloat(pts.shift())
|
||
|
tmpCode += indent + pathName + ' = ' + pathName + '.appendBezier([[' + svg2cagX(x1, svgUnitsPmm) + ',' + svg2cagY(y1, svgUnitsPmm) + '],[' + svg2cagX(bx, svgUnitsPmm) + ',' + svg2cagY(by, svgUnitsPmm) + '],[' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']]);\n'
|
||
|
let rf = reflect(bx, by, cx, cy)
|
||
|
bx = rf[0]
|
||
|
by = rf[1]
|
||
|
}
|
||
|
break
|
||
|
case 'h': // relative Horzontal line to
|
||
|
while (pts.length >= 1) {
|
||
|
cx = cx + parseFloat(pts.shift())
|
||
|
tmpCode += indent + pathName + ' = ' + pathName + '.appendPoint([' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']);\n'
|
||
|
}
|
||
|
break
|
||
|
case 'H': // absolute Horzontal line to
|
||
|
while (pts.length >= 1) {
|
||
|
cx = parseFloat(pts.shift())
|
||
|
tmpCode += indent + pathName + ' = ' + pathName + '.appendPoint([' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']);\n'
|
||
|
}
|
||
|
break
|
||
|
case 'l': // relative line to
|
||
|
while (pts.length >= 2) {
|
||
|
cx = cx + parseFloat(pts.shift())
|
||
|
cy = cy + parseFloat(pts.shift())
|
||
|
tmpCode += indent + pathName + ' = ' + pathName + '.appendPoint([' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']);\n'
|
||
|
}
|
||
|
break
|
||
|
case 'L': // absolute line to
|
||
|
while (pts.length >= 2) {
|
||
|
cx = parseFloat(pts.shift())
|
||
|
cy = parseFloat(pts.shift())
|
||
|
tmpCode += indent + pathName + ' = ' + pathName + '.appendPoint([' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']);\n'
|
||
|
}
|
||
|
break
|
||
|
case 'v': // relative Vertical line to
|
||
|
while (pts.length >= 1) {
|
||
|
cy = cy + parseFloat(pts.shift())
|
||
|
tmpCode += indent + pathName + ' = ' + pathName + '.appendPoint([' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']);\n'
|
||
|
}
|
||
|
break
|
||
|
case 'V': // absolute Vertical line to
|
||
|
while (pts.length >= 1) {
|
||
|
cy = parseFloat(pts.shift())
|
||
|
tmpCode += indent + pathName + ' = ' + pathName + '.appendPoint([' + svg2cagX(cx, svgUnitsPmm) + ',' + svg2cagY(cy, svgUnitsPmm) + ']);\n'
|
||
|
}
|
||
|
break
|
||
|
case 'z': // close current line
|
||
|
case 'Z':
|
||
|
tmpCode += indent + pathName + ' = ' + pathName + '.close();\n'
|
||
|
tmpCode += indent + pathName + ' = ' + pathName + '.innerToCAG();\n'
|
||
|
tmpCode += indent + on + ' = ' + on + '.union(' + pathName + ');\n'
|
||
|
cx = sx
|
||
|
cy = sy // return to the starting point
|
||
|
pc = true
|
||
|
break
|
||
|
default:
|
||
|
console.log('Warning: Unknow PATH command [' + co.c + ']')
|
||
|
break
|
||
|
}
|
||
|
// console.log('postion: ['+cx+','+cy+'] after '+co.c);
|
||
|
}
|
||
|
if (pi > 0 && pc === false) {
|
||
|
tmpCode += indent + pathName + ' = ' + pathName + '.expandToCAG(' + r + ',CSG.defaultResolution2D);\n'
|
||
|
tmpCode += indent + on + ' = ' + on + '.union(' + pathName + ');\n'
|
||
|
}
|
||
|
return tmpCode
|
||
|
}
|