three-svg-extrude
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An npm package that effortlessly transforms SVG shapes into extruded 3D geometries for use in ThreeJS scenes.
1 lines • 27.3 kB
JavaScript
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s=e.subPaths;for(let t=0,e=s.length;t<e;t++){const e=s[t].curves;for(let t=0;t<e.length;t++){const s=e[t];s.isLineCurve?(n(s.v1),n(s.v2)):s.isCubicBezierCurve?(n(s.v0),n(s.v1),n(s.v2),n(s.v3)):s.isQuadraticBezierCurve?(n(s.v0),n(s.v1),n(s.v2)):s.isEllipseCurve&&(k.set(s.aX,s.aY),n(k),s.aX=k.x,s.aY=k.y,h(r)?o(s):i(s))}}}(E,M),m.push(E),E.userData={node:n,style:i});const S=n.childNodes;for(let t=0;t<S.length;t++){const e=S[t];u&&"style"!==e.nodeName&&"defs"!==e.nodeName||r(e,i)}l&&(g.pop(),g.length>0?M.copy(g[g.length-1]):M.identity())}(E.documentElement,{fill:"#000",fillOpacity:1,strokeOpacity:1,strokeWidth:1,strokeLineJoin:"miter",strokeLineCap:"butt",strokeMiterLimit:4}),{paths:m,xml:E.documentElement}}static createShapes(e){const r=999999999,n={loc:0,t:0};function o(t,e,r,o){const s=t.x,a=e.x,c=r.x,l=o.x,u=t.y,f=e.y,y=r.y,h=o.y,p=(l-c)*(u-y)-(h-y)*(s-c),d=(h-y)*(a-s)-(l-c)*(f-u),m=p/d,b=((a-s)*(u-y)-(f-u)*(s-c))/d;if(0===d&&0!==p||m<=0||m>=1||b<0||b>1)return 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a<=c&&(a=c+1),s>=l&&(s=l-1),{curves:e.curves,points:n,isCW:t.ShapeUtils.isClockWise(n),identifier:-1,boundingBox:new t.Box2(new t.Vector2(l,i),new t.Vector2(c,o))}}));c=c.filter((t=>t.points.length>1));for(let t=0;t<c.length;t++)c[t].identifier=t;const l=c.map((r=>function(e,r,n,i,s){null!=s&&""!==s||(s="nonzero");const a=new t.Vector2;e.boundingBox.getCenter(a);const c=function(e,r,n){const i=new t.Vector2;r.getCenter(i);const s=[];return n.forEach((r=>{r.boundingBox.containsPoint(i)&&function(e,r){const n=[],i=[];for(let s=1;s<e.length;s++){const a=e[s-1],c=e[s];for(let e=1;e<r.length;e++){const s=o(a,c,r[e-1],r[e]);null!==s&&void 0===n.find((t=>t.t<=s.t+Number.EPSILON&&t.t>=s.t-Number.EPSILON))&&(n.push(s),i.push(new t.Vector2(s.x,s.y)))}}return i}(e,r.points).forEach((t=>{s.push({identifier:r.identifier,isCW:r.isCW,point:t})}))})),s.sort(((t,e)=>t.point.x-e.point.x)),s}([new t.Vector2(n,a.y),new t.Vector2(i,a.y)],e.boundingBox,r);c.sort(((t,e)=>t.point.x-e.point.x));const l=[],u=[];c.forEach((t=>{t.identifier===e.identifier?l.push(t):u.push(t)}));const f=l[0].point.x,y=[];let h=0;for(;h<u.length&&u[h].point.x<f;)y.length>0&&y[y.length-1]===u[h].identifier?y.pop():y.push(u[h].identifier),h++;if(y.push(e.identifier),"evenodd"===s){const t=y.length%2==0,r=y[y.length-2];return{identifier:e.identifier,isHole:t,for:r}}if("nonzero"===s){let t=!0,n=null,o=null;for(let e=0;e<y.length;e++){const i=y[e];t?(o=r[i].isCW,t=!1,n=i):o!==r[i].isCW&&(o=r[i].isCW,t=!0)}return{identifier:e.identifier,isHole:t,for:n}}console.warn('fill-rule: "'+s+'" is currently not implemented.')}(r,c,s,a,e.userData?e.userData.style.fillRule:void 0))),u=[];return c.forEach((e=>{if(!l[e.identifier].isHole){const r=new t.Shape;r.curves=e.curves,l.filter((t=>t.isHole&&t.for===e.identifier)).forEach((e=>{const n=c[e.identifier],o=new t.Path;o.curves=n.curves,r.holes.push(o)})),u.push(r)}})),u}static getStrokeStyle(t,e,r,n,o){return{strokeColor:e=void 0!==e?e:"#000",strokeWidth:t=void 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i=p.length();switch(p.divideScalar(i),y.dot(T)<o&&p.dot(T)<i&&(B=!0),M.copy(h).add(P),T.add(P),O=!1,B?N?(k.copy(T),v.copy(T)):(w.copy(T),A.copy(T)):F(),r.strokeLineJoin){case"bevel":X(N,B,R);break;case"round":J(N,B),N?D(P,A,w,R,0):D(P,k,v,R,1);break;default:const t=C*r.strokeMiterLimit/n;if(t<1){if("miter-clip"!==r.strokeLineJoin){X(N,B,R);break}J(N,B),N?(p.subVectors(M,A).multiplyScalar(t).add(A),d.subVectors(M,w).multiplyScalar(t).add(w),j(A,R,0),j(p,R,0),j(P,R,.5),j(P,R,.5),j(p,R,0),j(d,R,0),j(P,R,.5),j(d,R,0),j(w,R,0)):(p.subVectors(M,v).multiplyScalar(t).add(v),d.subVectors(M,k).multiplyScalar(t).add(k),j(v,R,1),j(p,R,1),j(P,R,.5),j(P,R,.5),j(p,R,1),j(d,R,1),j(P,R,.5),j(d,R,1),j(k,R,1))}else B?(N?(j(b,L,1),j(m,L,0),j(M,R,0),j(b,L,1),j(M,R,0),j(T,R,1)):(j(b,L,1),j(m,L,0),j(M,R,1),j(m,L,0),j(T,R,0),j(M,R,1)),N?w.copy(M):k.copy(M)):N?(j(A,R,0),j(M,R,0),j(P,R,.5),j(P,R,.5),j(M,R,0),j(w,R,0)):(j(v,R,1),j(M,R,1),j(P,R,.5),j(P,R,.5),j(M,R,1),j(k,R,1)),O=!0}}else F()}else 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X(t,e,r){e?t?(j(b,L,1),j(m,L,0),j(A,R,0),j(b,L,1),j(A,R,0),j(T,R,1),j(A,r,0),j(w,r,0),j(T,r,.5)):(j(b,L,1),j(m,L,0),j(v,R,1),j(m,L,0),j(T,R,0),j(v,R,1),j(v,r,1),j(k,r,0),j(T,r,.5)):t?(j(A,r,0),j(w,r,0),j(P,r,.5)):(j(v,r,1),j(k,r,0),j(P,r,.5))}function J(t,e){e&&(t?(j(b,L,1),j(m,L,0),j(A,R,0),j(b,L,1),j(A,R,0),j(T,R,1),j(A,L,0),j(P,R,.5),j(T,R,1),j(P,R,.5),j(w,L,0),j(T,R,1)):(j(b,L,1),j(m,L,0),j(v,R,1),j(m,L,0),j(T,R,0),j(v,R,1),j(v,L,1),j(T,R,0),j(P,R,.5),j(P,R,.5),j(T,R,0),j(k,L,1)))}function Y(t,e,n,o,s,a){switch(r.strokeLineCap){case"round":s?D(t,n,e,a,.5):D(t,e,n,a,.5);break;case"square":if(s)l.subVectors(e,t),u.set(l.y,-l.x),f.addVectors(l,u).add(t),y.subVectors(u,l).add(t),o?(f.toArray(i,3),y.toArray(i,0),y.toArray(i,9)):(f.toArray(i,3),f.toArray(i,9),y.toArray(i,0));else{l.subVectors(n,t),u.set(l.y,-l.x),f.addVectors(l,u).add(t),y.subVectors(u,l).add(t);const e=i.length;o?(f.toArray(i,e-3),y.toArray(i,e-6),y.toArray(i,e-12)):(f.toArray(i,e-6),y.toArray(i,e-3),y.toArray(i,e-12))}}}}}function i(e){let r,n,o,i=-1,s=0;for(let t=0;t<e.length;++t){const a=e[t];if(a.isInterleavedBufferAttribute)return console.error("THREE.BufferGeometryUtils: .mergeAttributes() failed. 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BufferAttribute.gpuType must be consistent across matching attributes."),null;s+=a.array.length}const a=new r(s);let c=0;for(let t=0;t<e.length;++t)a.set(e[t].array,c),c+=e[t].array.length;const l=new t.BufferAttribute(a,n,o);return void 0!==i&&(l.gpuType=i),l}var s=function(e,n,o){return new Promise((function(s,a){(new r).load(e,(function(e){for(var r=e.paths,a=[],c=0;c<r.length;c++){var l=r[c].toShapes(!0),u=new t.ExtrudeGeometry(l,{depth:n*(1/o),bevelEnabled:!1});a.push(u)}var f=function(e,r=!1){const n=null!==e[0].index,o=new Set(Object.keys(e[0].attributes)),s=new Set(Object.keys(e[0].morphAttributes)),a={},c={},l=e[0].morphTargetsRelative,u=new t.BufferGeometry;let f=0;for(let t=0;t<e.length;++t){const i=e[t];let y=0;if(n!==(null!==i.index))return console.error("THREE.BufferGeometryUtils: .mergeGeometries() failed with geometry at index "+t+". All geometries must have compatible attributes; make sure index attribute exists among all geometries, or in none of them."),null;for(const e in i.attributes){if(!o.has(e))return console.error("THREE.BufferGeometryUtils: .mergeGeometries() failed with geometry at index "+t+'. All geometries must have compatible attributes; make sure "'+e+'" attribute exists among all geometries, or in none of them.'),null;void 0===a[e]&&(a[e]=[]),a[e].push(i.attributes[e]),y++}if(y!==o.size)return console.error("THREE.BufferGeometryUtils: .mergeGeometries() failed with geometry at index "+t+". 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