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{
"cells": [
{
"cell_type": "code",
"execution_count": 148,
"metadata": {},
"outputs": [],
"source": [
"using LinearAlgebra\n",
"using Plots\n",
"import JSON\n",
"using StaticArrays, Rotations\n",
"# BASED ON https://github.com/jonhiller/Voxelyze"
]
},
{
"cell_type": "code",
"execution_count": 149,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"simulateParallel (generic function with 3 methods)"
]
},
"execution_count": 149,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"function simulateParallel(setup,numTimeSteps,dt,static=true,saveInterval=10)\n",
"\tinitialize(setup)\n",
" for i in 1:numTimeSteps\n",
" # println(\"Timestep:\",i)\n",
" doTimeStep(setup,dt,static,i,saveInterval);\n",
" end\n",
"end"
]
},
{
"cell_type": "code",
"execution_count": 150,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"initialize (generic function with 1 method)"
]
},
"execution_count": 150,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"function initialize(setup)\n",
"\tnodes = setup[\"nodes\"]\n",
" edges = setup[\"edges\"]\n",
"\t# pre-calculate current position\n",
"\tfor node in nodes\n",
" # element=parse(Int,node[\"id\"][2:end])\n",
"\n",
" append!(N_position,[[node[\"position\"][\"x\"] node[\"position\"][\"y\"] node[\"position\"][\"z\"]]])\n",
" append!(N_degrees_of_freedom,[node[\"degrees_of_freedom\"]])\n",
" append!(N_restrained_degrees_of_freedom, [node[\"restrained_degrees_of_freedom\"]])\n",
" append!(N_displacement,[[node[\"displacement\"][\"x\"] node[\"displacement\"][\"y\"] node[\"displacement\"][\"z\"]]])\n",
" append!(N_angle,[[node[\"angle\"][\"x\"] node[\"angle\"][\"y\"] node[\"angle\"][\"z\"]]])\n",
" append!(N_force,[[node[\"force\"][\"x\"] node[\"force\"][\"y\"] node[\"force\"][\"z\"]]])\n",
" append!(N_currPosition,[[node[\"position\"][\"x\"] node[\"position\"][\"y\"] node[\"position\"][\"z\"]]])\n",
" append!(N_orient,[[1.0 0.0 0.0 0.0]])#quat\n",
" append!(N_linMom,[[0 0 0]])\n",
" append!(N_angMom,[[0 0 0]])\n",
" append!(N_intForce,[[0 0 0]])\n",
" append!(N_intMoment,[[0 0 0]])\n",
" append!(N_moment,[[0 0 0]])\n",
" \n",
" # for dynamic simulations\n",
" append!(N_posTimeSteps,[[]])\n",
" append!(N_angTimeSteps,[[]])\n",
" \n",
"\tend \n",
"\t# pre-calculate the axis\n",
"\tfor edge in edges\n",
" # element=parse(Int,edge[\"id\"][2:end])\n",
" \n",
" # find the nodes that the lements connects\n",
" fromNode = nodes[edge[\"source\"]+1]\n",
" toNode = nodes[edge[\"target\"]+1]\n",
"\n",
" \n",
" node1 = [fromNode[\"position\"][\"x\"] fromNode[\"position\"][\"y\"] fromNode[\"position\"][\"z\"]]\n",
" node2 = [toNode[\"position\"][\"x\"] toNode[\"position\"][\"y\"] toNode[\"position\"][\"z\"]]\n",
" \n",
" length=norm(node2-node1)\n",
" axis=normalize(collect(Iterators.flatten(node2-node1)))\n",
" \n",
" append!(E_source,[edge[\"source\"]+1])\n",
" append!(E_target,[edge[\"target\"]+1])\n",
" append!(E_area,[edge[\"area\"]])\n",
"# append!(E_density,[edge[\"density\"]])\n",
"# append!(E_stiffness,[edge[\"stiffness\"]])\n",
" append!(E_density,[1000])\n",
" append!(E_stiffness,[1000000])\n",
" append!(E_stress,[0])\n",
" append!(E_axis,[axis])\n",
" append!(E_currentRestLength,[length])\n",
" append!(E_pos2,[[0 0 0]])\n",
" append!(E_angle1v,[[0 0 0]])\n",
" append!(E_angle2v,[[0 0 0]])\n",
" append!(E_angle1,[[1.0 0.0 0.0 0.0]]) #quat\n",
" append!(E_angle2,[[1.0 0.0 0.0 0.0]]) #quat\n",
" append!(E_currentTransverseStrainSum,[0])\n",
" \n",
" # for dynamic simulations\n",
" append!(E_stressTimeSteps,[[]])\n",
" \n",
"\tend \n",
"\t\n",
"end"
]
},
{
"cell_type": "code",
"execution_count": 151,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"doTimeStep (generic function with 1 method)"
]
},
"execution_count": 151,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"function doTimeStep(setup,dt,static,currentTimeStep,saveInterval)\n",
" \n",
" nodes = setup[\"nodes\"]\n",
" edges = setup[\"edges\"]\n",
" voxCount=size(nodes)[1]\n",
" linkCount=size(edges)[1]\n",
"\n",
"\tif dt==0 \n",
"\t\treturn true\n",
"\telseif (dt<0) \n",
"\t\tdt = recommendedTimeStep()\n",
" end\n",
"\n",
"\t# if (collisions) updateCollisions();\n",
"\tcollisions=false\n",
"\n",
"\t# Euler integration:\n",
"\tDiverged = false\n",
" # for edge in edges\n",
" \n",
"\tfor i in 1:linkCount\n",
" # fromNode = nodes[edge[\"source\"]+1]\n",
" # toNode = nodes[edge[\"target\"]+1]\n",
" # node1 = [fromNode[\"position\"][\"x\"] fromNode[\"position\"][\"y\"] fromNode[\"position\"][\"z\"]]\n",
" # node2 = [toNode[\"position\"][\"x\"] toNode[\"position\"][\"y\"] toNode[\"position\"][\"z\"]]\n",
" # updateForces(setup,edge,node1,node2,static)# element numbers??\n",
" updateForces(setup,i,static)# element numbers??\n",
" # todo: update forces and whatever\n",
"\t\tif axialStrain(true) > 100\n",
"\t\t\tDiverged = true; # catch divergent condition! (if any thread sets true we will fail, so don't need mutex...\n",
" end\n",
" end\n",
" \n",
" \n",
" if Diverged\n",
"\t\tprintln(\"Divergedd!!!!!\")\n",
"\t\treturn false\n",
" end\n",
" \n",
"\tfor i in 1:voxCount\n",
"\t\ttimeStep(dt,i,static,currentTimeStep)\n",
" # timeStep(dt,node,static,currentTimeStep)\n",
"\t\tif(!static&& currentTimeStep%saveInterval==0)\n",
" append!(N_posTimeSteps[i],[N_displacement[i]])\n",
" append!(N_angTimeSteps[i],[N_angle[i]])\n",
"\n",
" end\n",
"\t\t# todo: update linMom,angMom, orient and whatever\n",
" end\n",
"\n",
"\t\n",
"\tcurrentTimeStep = currentTimeStep+dt\n",
"\treturn true\n",
"end"
]
},
{
"cell_type": "code",
"execution_count": 152,
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