You can use FEniCS: from fenics import ( UnitSquareMesh, FunctionSpace, Expression, interpolate, assemble, sqrt, inner, grad, dx, TrialFunction, TestFunction, Function, solve, DirichletBC, DomainBoundary, MPI, XDMFFile, ) # Create mesh and define function space mesh = UnitSquareMesh(100, 100) V = FunctionSpace(mesh, “Lagrange”, 2) # initial guess (its boundary values specify the Dirichlet boundary conditions) # (larger … Read more
If there are M lines of latitude (horizontal) and N lines of longitude (vertical), then put dots at (x, y, z) = (sin(Pi * m/M) cos(2Pi * n/N), sin(Pi * m/M) sin(2Pi * n/N), cos(Pi * m/M)) for each m in { 0, …, M } and n in { 0, …, N-1 } and … Read more
The purpose of meshgrid is to create a rectangular grid out of an array of x values and an array of y values. So, for example, if we want to create a grid where we have a point at each integer value between 0 and 4 in both the x and y directions. To create … Read more
The dragging will be a bit more tricky because you need to work out where would the x/y positions of the mouse on the screen (screen space) will be in the 3D world, then you will need to cast a ray and check if it intersects the object you want to drag. I presume this … Read more
To render both a model and its wireframe, you can use a pattern like this one: // mesh var material = new THREE.MeshPhongMaterial( { color: 0xff0000, polygonOffset: true, polygonOffsetFactor: 1, // positive value pushes polygon further away polygonOffsetUnits: 1 } ); var mesh = new THREE.Mesh( geometry, material ); scene.add( mesh ) // wireframe var … Read more
If you’re ok with a basic bounding box, you can use a THREE.Box3 let measure = new THREE.Vector3(); let box = colladaModel.getSize(measure); console.log( measure );
The purpose of meshgrid is to create a rectangular grid out of an array of x values and an array of y values. So, for example, if we want to create a grid where we have a point at each integer value between 0 and 4 in both the x and y directions. To create … Read more