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// Amira Abdel-Rahman
// (c) Massachusetts Institute of Technology 2020
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var solveFea;
var _rhino3dm = null;
var occupancy=[];
var gridSize=10;
// initialize
function latticeSetup(setup,latticeSize,voxelSize,voxelBuilder,forces,material) {//later change type to dictiary
// console.log(_rhino3dm);
// var voxelSize=10.0;
// var latticeSize=5;
// const material={
// area:1.0,
// density:0.028,
// stiffness:1000000
// };
createLattice(setup,voxelSize,latticeSize,latticeSize,latticeSize,voxelBuilder,material);
//todo fix this
if(setup.hierarchical){
addForceAbove(setup,0.75*voxelSize*latticeSize,forces);
restrainBelow(setup,voxelSize*0.75);
}else{
addForceAbove(setup,0.8*voxelSize*latticeSize,forces);
restrainBelow(setup,-voxelSize/2);
}
}
///
function lateralLoadSetup(setup,position,length,voxelSize,voxelBuilder,supports,loads,material) {
createLattice(setup,voxelSize,1,1,length,voxelBuilder,material,position);
//todo incorporate this into the drawing phase so you don't have to loop twice
restrainFromBox(setup,supports);
loadFromBox(setup,loads);
}
function lateralLoadSetup1(setup,position,length,voxelSize,voxelBuilder,supports,loads,material) {
createLattice(setup,voxelSize,1,length,1,voxelBuilder,material,position);
//todo incorporate this into the drawing phase so you don't have to loop twice
restrainFromBox(setup,supports);
loadFromBox(setup,loads);
}
////////////////////////////////////////////////////////////
function createLattice(setup,size,sizeX,sizeY,sizeZ,voxelBuilder,material,position=new THREE.Vector3(0,0,0)){
for (var i=0;i<gridSize;++i){
occupancy.push([]);
for (var j=0;j<gridSize;++j){
occupancy[i].push([]);
for (var k=0;k<gridSize;++k){
occupancy[i][j].push(-1);
}
}
}
var count=0;
for(var i=0;i<sizeX;i++){
for(var j=0;j<sizeY;j++){
for(var k=0;k<sizeZ;k++){
// if(i>sizeX/3){
// stiffness=100000;
// }
voxelBuilder(setup,size,new THREE.Vector3(i*size+position.x,j*size+position.y,k*size+position.z),material);
}
}
}
function createLatticeFromFrep(setup,size,frep,voxelBuilder,material,position=new THREE.Vector3(0,0,0)){
for (var i=0;i<gridSize;++i){
occupancy.push([]);
for (var j=0;j<gridSize;++j){
occupancy[i].push([]);
for (var k=0;k<gridSize;++k){
occupancy[i][j].push(-1);
}
}
}
for(var i=0;i<gridSize;i++){
for(var j=0;j<gridSize;j++){
for(var k=0;k<gridSize;k++){
if(frep(i,j,k)>0){
voxelBuilder(setup,size,new THREE.Vector3(i*size+position.x,j*size+position.y,k*size+position.z),material);
}
}
}
}
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}
function createGeometryFromRhino(setup,fileName,layerIndex,voxelSize,sizeX,sizeY,sizeZ,material){
let rhinoFile= fs.readFileSync(fileName);
let doc = _rhino3dm.File3dm.fromByteArray(rhinoFile);
let objects = doc.objects();
for (let ii = 0; ii < objects.count; ii++) {
let object = objects.get(ii).geometry();
let layer=objects.get(ii).attributes().layerIndex;
if((object instanceof _rhino3dm.LineCurve ||object instanceof _rhino3dm.NurbsCurve ||object instanceof _rhino3dm.PolylineCurve )&& layer==layerIndex ) { //only get lines no nurbs curves
// console.log("yes!")
for(var i=0;i<sizeX;i++){
for(var j=0;j<sizeY;j++){
for(var k=0;k<sizeZ;k++){
var pos= new THREE.Vector3(i*voxelSize,j*voxelSize,k*voxelSize);
var pos1=new THREE.Vector3(object.pointAtStart[0]+pos.x,object.pointAtStart[2]+pos.y,object.pointAtStart[1]+pos.z);
var pos2=new THREE.Vector3( object.pointAtEnd[0]+pos.x, object.pointAtEnd[2]+pos.y, object.pointAtEnd[1]+pos.z);
var source = checkandAdd(setup,pos1,material);
var target = checkandAdd(setup,pos2,material);
addEdge(setup,source,target,material);
}
}
}
}else if(layer==layerIndex){
console.log("Warning: unknown object imported from Rhino on layer:"+object)
}
}
}
function createVoxel(setup,size,position,material){
// var sphere = new _rhino3dm.Sphere([0,0,0], size/2);
// var box = sphere.toBrep().getBoundingBox();
var box=new _rhino3dm.BoundingBox([0,0,0], [size,size,size]);
// console.log(box.min)
box = box.toBrep();
// position.x-=size/2;
// position.y-=size/2;
// position.z-=size/2;
for(var i=0; i<6;i++){//for each face
// var restrained=false;
// var force=new THREE.Vector3(0,0,0);
// if(i==0){
// restrained=true;
// }
// if(i==2){
// force=new THREE.Vector3(0,-200,0);
// // restrained=true;
// }
nodesIndices=[];
var face=box.faces().get(i);
nodesIndices.push(checkandAdd(setup,add(position,toPosition(face.pointAt(size , size/2))),material) );
nodesIndices.push(checkandAdd(setup,add(position,toPosition(face.pointAt(size/2, 0 ))),material) );
nodesIndices.push(checkandAdd(setup,add(position,toPosition(face.pointAt(0 , size/2))),material) );
nodesIndices.push(checkandAdd(setup,add(position,toPosition(face.pointAt(size/2, size ))),material) );
linkNodes(setup,nodesIndices,material);
}
}
function createChiralVoxel(setup,size,position,material){
// var sphere = new _rhino3dm.Sphere([0,0,0], size/2);
// var box = sphere.toBrep().getBoundingBox();
// console.log(box.min)
var box=new _rhino3dm.BoundingBox([0,0,0], [size,size,size]);
box = box.toBrep();
position.x-=size/2;
position.y-=size/2;
position.z-=size/2;
for(var i=0; i<6;i++){//for each face
var nodesIndices=[];
var face=box.faces().get(i);
nodesIndices.push(checkandAdd(setup,add(position,toPosition(face.pointAt(size , size/2))),material));
nodesIndices.push(checkandAdd(setup,add(position,toPosition(face.pointAt(size/2, 0 ))),material));
nodesIndices.push(checkandAdd(setup,add(position,toPosition(face.pointAt(0 , size/2))),material));
nodesIndices.push(checkandAdd(setup,add(position,toPosition(face.pointAt(size/2, size ))),material));
// linkNodes(nodesIndices);
var n=8;
var c= new _rhino3dm.Circle(size/3.5);
c=c.toNurbsCurve();
var rot=[1,0,0];
var nodesIndices1=[];
c.domain=[0,1];
// console.log(rot);
// console.log(c.tangentAt(i*1/4+1/4));
rot=c.tangentAt(i*1/4+1/4);
if(i>3){
rot=face.normalAt(0, 0);
}
c.rotate(Math.PI/2,rot , [0,0,0]);
c.translate(face.pointAt(size/2, size/2));
for(var ii=0; ii<n;ii++){//for each face
// createNode(toPosition(c.pointAt(ii*1/n)),'e',false,[]);
nodesIndices1.push(checkandAdd(setup,add(position,toPosition(c.pointAt(ii*1/n))),material));
}
linkNodes(setup,nodesIndices1,material);
if(i==0){
addEdge(setup,nodesIndices[0], nodesIndices1[1] ,material);
addEdge(setup,nodesIndices[1], nodesIndices1[3] ,material);
addEdge(setup,nodesIndices[2], nodesIndices1[5] ,material);
addEdge(setup,nodesIndices[3], nodesIndices1[7] ,material);
}else if(i==1){
addEdge(setup,nodesIndices[3], nodesIndices1[1],material);
addEdge(setup,nodesIndices[0], nodesIndices1[3],material);
addEdge(setup,nodesIndices[1], nodesIndices1[5],material);
addEdge(setup,nodesIndices[2], nodesIndices1[7],material);
}else if(i==2){
addEdge(setup,nodesIndices[0], nodesIndices1[5],material);
addEdge(setup,nodesIndices[1], nodesIndices1[7],material);
addEdge(setup,nodesIndices[2], nodesIndices1[1],material);
addEdge(setup,nodesIndices[3], nodesIndices1[3],material);
// var force=new THREE.Vector3(0,-400,0);
// addForce(setup,'n'+nodesIndices[0],force);
// addForce(setup,'n'+nodesIndices[1],force);
// addForce(setup,'n'+nodesIndices[2],force);
// addForce(setup,'n'+nodesIndices[3],force);
}else if(i==3){
addEdge(setup,nodesIndices[3], nodesIndices1[5],material);
addEdge(setup,nodesIndices[0], nodesIndices1[7],material);
addEdge(setup,nodesIndices[1], nodesIndices1[1],material);
addEdge(setup,nodesIndices[2], nodesIndices1[3],material);
}else if(i==4){
addEdge(setup,nodesIndices[0], nodesIndices1[5],material);
addEdge(setup,nodesIndices[1], nodesIndices1[7],material);
addEdge(setup,nodesIndices[2], nodesIndices1[1],material);
addEdge(setup,nodesIndices[3], nodesIndices1[3],material);
}else if(i==5){
addEdge(setup,nodesIndices[0], nodesIndices1[5],material);
addEdge(setup,nodesIndices[1], nodesIndices1[3],material);
addEdge(setup,nodesIndices[2], nodesIndices1[1],material);
addEdge(setup,nodesIndices[3], nodesIndices1[7],material);
}
}
}
/////////////////
function createOldVoxelnotRhino(setup,size,position){
addNode(setup,position.clone().add(new THREE.Vector3(0,0,0)),true, new THREE.Vector3(0,0,0));
addNode(setup,position.clone().add(new THREE.Vector3(-size, size*1.5,-size)),false, new THREE.Vector3(0,-200,0));
addNode(setup,position.clone().add(new THREE.Vector3(-size, size*1.5, size)),false, new THREE.Vector3(0,-200,0));
addNode(setup,position.clone().add(new THREE.Vector3( size, size*1.5, size)),false, new THREE.Vector3(0,-200,0));
addNode(setup,position.clone().add(new THREE.Vector3( size, size*1.5,-size)),false, new THREE.Vector3(0,-200,0));
addNode(setup,position.clone().add(new THREE.Vector3(0, size*1.5*2,0)),false, new THREE.Vector3(0,-400,0));
addEdge(setup,0, 1, 1.0, 0.284 , 30.0e6);
addEdge(setup,0, 2, 1.0, 0.284 , 30.0e6);
addEdge(setup,0, 3, 1.0, 0.284 , 30.0e6);
addEdge(setup,0, 4, 1.0, 0.284 , 30.0e6);
addEdge(setup,1, 2, 1.0, 0.284 , 30.0e6);
addEdge(setup,2, 3, 1.0, 0.284 , 30.0e6);
addEdge(setup,3, 4, 1.0, 0.284 , 30.0e6);
addEdge(setup,4, 1, 1.0, 0.284 , 30.0e6);
addEdge(setup,5, 1, 1.0, 0.284 , 30.0e6);
addEdge(setup,5, 2, 1.0, 0.284 , 30.0e6);
addEdge(setup,5, 3, 1.0, 0.284 , 30.0e6);
addEdge(setup,5, 4, 1.0, 0.284 , 30.0e6);
// console.log(setup)
}
function createVoxelnotRhino(setup,size,position){
//down square
addNode(setup,position.clone().add(new THREE.Vector3(-size, 0,-size)),true, new THREE.Vector3(0,0,0));//0
addNode(setup,position.clone().add(new THREE.Vector3(-size, 0, 0)),true, new THREE.Vector3(0,0,0));//1//mid
addNode(setup,position.clone().add(new THREE.Vector3(-size, 0, size)),true, new THREE.Vector3(0,0,0));//2
addNode(setup,position.clone().add(new THREE.Vector3( 0, 0, size)),true, new THREE.Vector3(0,0,0));//3//mid
addNode(setup,position.clone().add(new THREE.Vector3( size, 0, size)),true, new THREE.Vector3(0,0,0));//4
addNode(setup,position.clone().add(new THREE.Vector3( size, 0, 0)),true, new THREE.Vector3(0,0,0));//5//mid
addNode(setup,position.clone().add(new THREE.Vector3( size, 0,-size)),true, new THREE.Vector3(0,0,0));//6
addNode(setup,position.clone().add(new THREE.Vector3( 0, 0,-size)),true, new THREE.Vector3(0,0,0));//7//mid
addEdge(setup,0, 1, 1.0, 0.284 , 30.0e6);
addEdge(setup,1, 2, 1.0, 0.284 , 30.0e6);
addEdge(setup,2, 3, 1.0, 0.284 , 30.0e6);
addEdge(setup,3, 4, 1.0, 0.284 , 30.0e6);
addEdge(setup,4, 5, 1.0, 0.284 , 30.0e6);
addEdge(setup,5, 6, 1.0, 0.284 , 30.0e6);
addEdge(setup,6, 7, 1.0, 0.284 , 30.0e6);
addEdge(setup,7, 0, 1.0, 0.284 , 30.0e6);
addEdge(setup,1, 3, 1.0, 0.284 , 30.0e6);
addEdge(setup,3, 5, 1.0, 0.284 , 30.0e6);
addEdge(setup,5, 7, 1.0, 0.284 , 30.0e6);
addEdge(setup,7, 1, 1.0, 0.284 , 30.0e6);
//up square
addNode(setup,position.clone().add(new THREE.Vector3(-size, size*2,-size)),false, new THREE.Vector3(0,-400,0));//0+8
addNode(setup,position.clone().add(new THREE.Vector3(-size, size*2, 0)),false, new THREE.Vector3(0,-400,0));//1+8//mid
addNode(setup,position.clone().add(new THREE.Vector3(-size, size*2, size)),false, new THREE.Vector3(0,-400,0));//2+8
addNode(setup,position.clone().add(new THREE.Vector3( 0, size*2, size)),false, new THREE.Vector3(0,-400,0));//3+8//mid
addNode(setup,position.clone().add(new THREE.Vector3( size, size*2, size)),false, new THREE.Vector3(0,-400,0));//4+8
addNode(setup,position.clone().add(new THREE.Vector3( size, size*2, 0)),false, new THREE.Vector3(0,-400,0));//5+8//mid
addNode(setup,position.clone().add(new THREE.Vector3( size, size*2,-size)),false, new THREE.Vector3(0,-400,0));//6+8
addNode(setup,position.clone().add(new THREE.Vector3( 0, size*2,-size)),false, new THREE.Vector3(0,-400,0));//7+8//mid
addEdge(setup,0+8, 1+8, 1.0, 0.284 , 30.0e6);
addEdge(setup,1+8, 2+8, 1.0, 0.284 , 30.0e6);
addEdge(setup,2+8, 3+8, 1.0, 0.284 , 30.0e6);
addEdge(setup,3+8, 4+8, 1.0, 0.284 , 30.0e6);
addEdge(setup,4+8, 5+8, 1.0, 0.284 , 30.0e6);
addEdge(setup,5+8, 6+8, 1.0, 0.284 , 30.0e6);
addEdge(setup,6+8, 7+8, 1.0, 0.284 , 30.0e6);
addEdge(setup,7+8, 0+8, 1.0, 0.284 , 30.0e6);
addEdge(setup,1+8, 3+8, 1.0, 0.284 , 30.0e6);
addEdge(setup,3+8, 5+8, 1.0, 0.284 , 30.0e6);
addEdge(setup,5+8, 7+8, 1.0, 0.284 , 30.0e6);
addEdge(setup,7+8, 1+8, 1.0, 0.284 , 30.0e6);
//left square
addNode(setup,position.clone().add(new THREE.Vector3(-size, size,-size)),false, new THREE.Vector3(0,0,0));//0+16
addNode(setup,position.clone().add(new THREE.Vector3( size, size,-size)),false, new THREE.Vector3(0,0,0));//1+16
addEdge(setup,0, 16, 1.0, 0.284 , 30.0e6);
addEdge(setup,16, 8, 1.0, 0.284 , 30.0e6);
addEdge(setup,6, 17, 1.0, 0.284 , 30.0e6);
addEdge(setup,17, 14, 1.0, 0.284 , 30.0e6);
addEdge(setup,16, 7, 1.0, 0.284 , 30.0e6);
addEdge(setup,15, 16, 1.0, 0.284 , 30.0e6);
addEdge(setup,17, 15, 1.0, 0.284 , 30.0e6);
addEdge(setup, 7, 17, 1.0, 0.284 , 30.0e6);
//right square
addNode(setup,position.clone().add(new THREE.Vector3(-size, size, size)),false, new THREE.Vector3(0,0,0));//0+18
addNode(setup,position.clone().add(new THREE.Vector3( size, size, size)),false, new THREE.Vector3(0,0,0));//1+18
addEdge(setup,2, 18, 1.0, 0.284 , 30.0e6);
addEdge(setup,18, 10, 1.0, 0.284 , 30.0e6);
addEdge(setup,4, 19, 1.0, 0.284 , 30.0e6);
addEdge(setup,19, 12, 1.0, 0.284 , 30.0e6);
addEdge(setup,18, 3, 1.0, 0.284 , 30.0e6);
addEdge(setup,11, 18, 1.0, 0.284 , 30.0e6);
addEdge(setup,19, 11, 1.0, 0.284 , 30.0e6);
addEdge(setup, 3, 19, 1.0, 0.284 , 30.0e6);
//front square
addEdge(setup,16, 1, 1.0, 0.284 , 30.0e6);
addEdge(setup, 9, 16, 1.0, 0.284 , 30.0e6);
addEdge(setup,18, 9, 1.0, 0.284 , 30.0e6);
addEdge(setup, 1, 18, 1.0, 0.284 , 30.0e6);
//back square
addEdge(setup,17, 5, 1.0, 0.284 , 30.0e6);
addEdge(setup,13, 17, 1.0, 0.284 , 30.0e6);
addEdge(setup,19, 13, 1.0, 0.284 , 30.0e6);
addEdge(setup, 5, 19, 1.0, 0.284 , 30.0e6);
}
function createSimpleSetupnotRhino(setup,size,position){
addNode(setup,position.clone().add(new THREE.Vector3(-0, 2*size,-0)),true, new THREE.Vector3(0,0,0));//0
addNode(setup,position.clone().add(new THREE.Vector3(-0, 0,-0)),true, new THREE.Vector3(0,0,0));//0
addNode(setup,position.clone().add(new THREE.Vector3(2*size, size,)),false, new THREE.Vector3(0,-200,0));//0
addEdge(setup,0, 2, 1.0, 0.284 , 30.0e6);
addEdge(setup,1, 2, 2.0, 0.284 , 30.0e6);
}
/////////////hierarchical nodes///
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function createHierarchalVoxel(setup,size,position,material,shift=false){
var i,j,k;
if (shift){
i=parseInt((position.x)/size);
j=parseInt((position.y)/size);
k=parseInt((position.z)/size);
// console.log(" i:"+i+" j:"+j+" k:"+k);
position.x+=size/2;
position.y+=size/2;
position.z+=size/2;
position.x-=size*gridSize/2.0
position.y-=size*gridSize/2.0
position.z-=size*gridSize/2.0
}else{
i=parseInt(position.x/size);
j=parseInt(position.y/size);
k=parseInt(position.z/size);
position.x+=size/2;
position.y+=size/2;
position.z+=size/2;
}
occupancy[i][j][k]=checkandAdd(setup,position,material);
//create node at size +position
var list=[];
list.push([0,0,1]);
list.push([0,0,-1]);
list.push([1,0,0]);
list.push([-1,0,0]);
list.push([0,1,0]);
list.push([0,-1,0]);
var count=0;
for(var count=0;count<list.length;count++){
var ii=i+list[count][0];
var jj=j+list[count][1];
var kk=k+list[count][2];
if((ii>=0 && ii<gridSize) && (jj>=0 && jj<gridSize) && (kk>=0 && kk<gridSize)){//in bounds
//check neighbours
if(occupancy[ii][jj][kk]>-0.5){
addEdge(setup,occupancy[i][j][k], occupancy[ii][jj][kk], material);
}
}
}
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}
///old setups
var setupSimple={
nodes: [
{
id: 'n0',
parent: '11',
degrees_of_freedom:[0,1,2,3,4,5] ,
restrained_degrees_of_freedom:[true,true,true,true,true,true],
position: { x: 0, y: 10,z:0 },
force:{ x: 0, y: 0,z:0 },
displacement: { x: 0, y: -0,z:0 },
angle: { x: 0, y: 0,z:0 }
},
{
id: 'n1',
parent: '11',
degrees_of_freedom:[6,7,8,9,10,11] ,
restrained_degrees_of_freedom:[true,true,true,true,true,true],
position: { x: 0, y: 0,z:0 },
force:{ x: 0, y: 0 },
displacement: { x: 0, y: 0,z:0 },
angle: { x: 0, y: 0,z:0 }
},
{
id: 'n2',
parent: '11',
degrees_of_freedom:[12,13,14,15,16,17,18] ,
restrained_degrees_of_freedom:[false,false,false,false,false,false],
position: { x: 10, y: 5,z:0 },
force:{ x: 0, y: -200,z:0 },
displacement: { x: 0, y: 0,z:0 },
angle: { x: 0, y: 0,z:0 }
}
],
edges: [
{ id: 'e0', source: 0, target: 2 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
{ id: 'e1', source: 1, target: 2 ,area:2.0,density:0.284,stiffness:30.0e6,stress:0}
],
//material properties - AISI 1095 Carbon Steel (Spring Steel)
ndofs : 3*6,
animation : {
showDisplacement : true,
exaggeration : 10000,
speed:3.0
},
viz : {
minStress:-500,
maxStress: 500,
colorMaps:[YlGnBu, winter, coolwarm,jet],
colorMap:0,
},
solve: solveFea,
bar:false
};
var oldVoxel={
nodes: [
{
id: 'n0',
parent: '11',
degrees_of_freedom:[0,1,2] , //todo automate
restrained_degrees_of_freedom:[true,true,true],
position: { x: 0, y: 0,z:0 },
force:{ x: 0, y: 0,z:0 },
displacement: { x: 0, y: 0,z:0 }
},
{
id: 'n1',
parent: '11',
degrees_of_freedom:[3,4,5] ,
restrained_degrees_of_freedom:[false,false,false],
position: { x: -5, y: 7.5,z:-5 },
force:{ x: 0, y: -200,z:0 },
displacement: { x: 0, y: 0,z:0 }
},
{
id: 'n2',
parent: '11',
degrees_of_freedom:[6,7,8] ,
restrained_degrees_of_freedom:[false,false,false],
position: { x: -5, y: 7.5,z:5 },
force:{ x: 0, y: -200,z:0 },
displacement: { x: 0, y: 0,z:0 }
},
{
id: 'n3',
parent: '11',
degrees_of_freedom:[9,10,11] ,
restrained_degrees_of_freedom:[false,false,false],
position: { x: 5, y: 7.5,z:5 },
force:{ x: 0, y:-200,z:0 },
displacement: { x: 0, y: 0,z:0 }
},
{
id: 'n4',
parent: '11',
degrees_of_freedom:[12,13,14] ,
restrained_degrees_of_freedom:[false,false,false],
position: { x: 5, y: 7.5,z: -5 },
force:{ x: 0, y: -200,z:0 },
displacement: { x: 0, y: 0,z:0 }
},
{
id: 'n5',
parent: '11',
degrees_of_freedom:[15,16,17] ,
restrained_degrees_of_freedom:[false,false,false],
position: { x: 0, y: 15,z: 0 },
force:{ x: 0, y: -400,z:0 },
displacement: { x: 0, y: 0,z:0 }
}
],
edges: [
{ id: 'e0', source: 0, target: 1 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
{ id: 'e1', source: 0, target: 2 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
{ id: 'e2', source: 0, target: 3 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
{ id: 'e3', source: 0, target: 4 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
{ id: 'e4', source: 1, target: 2 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
{ id: 'e5', source: 2, target: 3 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
{ id: 'e6', source: 3, target: 4 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
{ id: 'e7', source: 4, target: 1 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
{ id: 'e8', source: 5, target: 1 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
{ id: 'e9', source: 5, target: 2 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
{ id: 'e10', source: 5, target: 3 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
{ id: 'e11', source: 5, target: 4 ,area:1.0,density:0.284,stiffness:30.0e6,stress:0 },
],
//material properties - AISI 1095 Carbon Steel (Spring Steel)
ndofs : 6*3,
animation : {
showDisplacement : true,
exaggeration : 10000,
speed:3.0
},
viz : {
minStress:-500,
maxStress: 500,
colorMaps:[YlGnBu, winter, coolwarm,jet],
colorMap:0,
},
solve: solveFea,
bar:true
};
var setupEmpty={//empty
nodes: [
],
edges: [
],
//material properties - AISI 1095 Carbon Steel (Spring Steel)
ndofs : 3*6,
animation : {
showDisplacement : true,
exaggeration : 20e2,
speed:3.0
},
viz : {
minStress:10e6,
maxStress: -10e6,
colorMaps:[coolwarm,YlGnBu, winter ,jet],
colorMap:0,
},
};
/////////////////////drawing utils//////////////////////
function addNode(setup,position,restrained,force,material){
var bar=setup.bar;
var numNode=setup.nodes.length;
setup.nodes.push({
id: 'n'+numNode,
parent: '11',
degrees_of_freedom:[numNode*3,numNode*3+1,numNode*3+2] ,
restrained_degrees_of_freedom:[restrained,restrained,restrained],
position: toPos(position),
force:toPos(force),
displacement: { x: 0, y: 0,z:0 },
fixedDisplacement: { x: 0, y: 0,z:0 },
angle: { x: 0, y: 0,z:0 },
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});
setup.nodes[numNode].id='n'+numNode;
setup.nodes[numNode].position=toPos(position);
setup.nodes[numNode].force=toPos(force);
setup.nodes[numNode].degrees_of_freedom=[numNode*3,numNode*3+1,numNode*3+2];
setup.nodes[numNode].restrained_degrees_of_freedom=[restrained,restrained,restrained];
setup.ndofs = 3 * setup.nodes.length;
if(!bar){
setup.nodes[numNode].degrees_of_freedom=[numNode*6,numNode*6+1,numNode*6+2,numNode*6+3,numNode*6+4,numNode*6+5];
if(restrained){
restrained=[true,true,true,true,true,true];
}else{
restrained=[false,false,false,true,true,true];
}
setup.nodes[numNode].restrained_degrees_of_freedom=restrained;
setup.ndofs = 6 * setup.nodes.length;
}
}
function addEdge(setup,source,target,material){
var area=material.area;
var density=material.density;
var stiffness=material.stiffness;
var poissonRatio=material.poissonRatio;
if (edgeNeeded(setup,source,target)){
var numEdge=setup.edges.length;
if(typeof material.cTE !== 'undefined'){
var cTE=material.cTE;
setup.edges.push({ id: 'e'+numEdge, source: source, target: target ,material:material,stress:0 });
}else{
setup.edges.push({ id: 'e'+numEdge, source: source, target: target ,material:material,stress:0 });
}
// setup.edges[numEdge].id='e'+numEdge;
// setup.edges[numEdge].source=source;
// setup.edges[numEdge].target=target;
// setup.edges[numEdge].area=area;
// setup.edges[numEdge].density=density;
// setup.edges[numEdge].stiffness=stiffness;
}
}
function checkandAdd(setup,pos,material){
var restrained=false;
var force= new THREE.Vector3(0,0,0);
var node=nodeAt(setup,pos);
if(typeof node === 'undefined'){ //doesn't exist
addNode(setup,toThreeVec(pos),restrained, force,material);
return parseInt(setup.nodes[setup.nodes.length-1].id.substring(1));
}else{
// setup.nodes.find(v => v.name === node.name).enabled = false;
// if(restrained){
// restrain(setup,node.id)
// }
// addForce(setup,node.id,force);
return parseInt(node.id.substring(1));//return name
}
}
function linkNodes(setup,nodesIndices,material){ //create square/circle
for(var i=0;i<nodesIndices.length-1;i++){
addEdge(setup,nodesIndices[i], nodesIndices[i+1], material);
}
addEdge(setup,nodesIndices[nodesIndices.length-1], nodesIndices[0], material);
}
function restrain(setup,name){
var restrained;
if(!setup.bar){
restrained=[true,true,true,true,true,true];
}else{
restrained=[true,true,true];
}
setup.nodes.find(v => v.id === name).restrained_degrees_of_freedom=restrained;
}
function addForce(setup,name,force){
var node=setup.nodes.find(v => v.id === name);
node.force.x += force.x;
node.force.y += force.y;
node.force.z += force.z;
}
function restrainBelow(setup,y){
for(var i=0;i<setup.nodes.length;i++){
if(setup.nodes[i].position.y<=y){
if(setup.bar){
setup.nodes[i].restrained_degrees_of_freedom=[true,true,true];
}else{
setup.nodes[i].restrained_degrees_of_freedom=[true,true,true,true,true,true];
}
}
}
}
function addForceAbove(setup,y,force){
for(var i=0;i<setup.nodes.length;i++){
if(setup.nodes[i].position.y>=y){
setup.nodes[i].force.x += force.x;
setup.nodes[i].force.y += force.y;
setup.nodes[i].force.z += force.z;
}
}
}
function restrainFromBox(setup,supports){
for(var i=0;i<setup.nodes.length;i++){
for(var j=0;j<supports.length;j++){
if(supports[j][0].contains([setup.nodes[i].position.x,setup.nodes[i].position.y,setup.nodes[i].position.z])){
setup.nodes[i].restrained_degrees_of_freedom=supports[j][1];
}
}
}
}
function idFromBox(setup,box){
var list=[];
for(var i=0;i<setup.nodes.length;i++){
if(box.contains([setup.nodes[i].position.x,setup.nodes[i].position.y,setup.nodes[i].position.z])){
// list.push(setup.nodes[i].id)
list.push(i)
}
}
return list;
}
function loadFromBox(setup,loads){
for(var i=0;i<setup.nodes.length;i++){
for(var j=0;j<loads.length;j++){
if(loads[j][0].contains([setup.nodes[i].position.x,setup.nodes[i].position.y,setup.nodes[i].position.z])){
var force=loads[j][1];
setup.nodes[i].force.x += force.x;
setup.nodes[i].force.y += force.y;
setup.nodes[i].force.z += force.z;
}
}
}
}
function displacementFromBox(setup,fixedDisplacements){
for(var i=0;i<setup.nodes.length;i++){
for(var j=0;j<fixedDisplacements.length;j++){
if(fixedDisplacements[j][0].contains([setup.nodes[i].position.x,setup.nodes[i].position.y,setup.nodes[i].position.z])){
var fixedDisplacement=fixedDisplacements[j][1];
setup.nodes[i].fixedDisplacement.x += fixedDisplacement.x;
setup.nodes[i].fixedDisplacement.y += fixedDisplacement.y;
setup.nodes[i].fixedDisplacement.z += fixedDisplacement.z;
}
}
}
}
function changeMaterialFromBox(setup,box){
for(var j=0;j<box.length;j++){
for(var i=0;i<setup.edges.length;i++){ //todo remove later //todo change to map
if(edgeInBox(setup,setup.edges[i],box[j][0])){
setup.edges[i].material=box[j][1];
}
}
for(var i=0;i<setup.nodes.length;i++){ //todo change to map
var node=setup.nodes[i];
if(box[j][0].contains([node.position.x,node.position.y,node.position.z])){
node.material=box[j][1];
}
}
}
}
function edgeInBox(setup,edge,box){
const node1=setup.nodes[edge.source];
const node2=setup.nodes[edge.target];
return box.contains([node1.position.x,node1.position.y,node1.position.z])&&box.contains([node2.position.x,node2.position.y,node2.position.z]);
}
////////////