Tutorial 4 Final Exercise

[Nicole Wu]

Hi,

I just completed Tutorial 4 (Full track version). For the last exercise where it asks me to sample a random deformation and then use it to warp the reference mesh, I was able to sample the random deformation and display it, but am not sure what syntax/function to use to apply the sampled deformation field to the reference mesh. Please let me know what the appropriate code for this action should be. Thank you.

Best,

Nicole

[Maia R.]

// Get a random deformation field and apply to the reference
val sampleDeformation1 : DiscreteField[_3D, UnstructuredPointsDomain[_3D], EuclideanVector[_3D]] = faceGP.sample

// Interpolate in order to apply to a mesh
val interpolator = NearestNeighborInterpolator[_3D, EuclideanVector[_3D]]()
val continuousDeformationField1: Field[_3D, EuclideanVector[_3D] ] = sampleDeformation1.interpolate(interpolator)

// Apply continuous transformation
import scalismo.registration.Transformation

val sampleTransformation1 = Transformation( (pt: Point[_3D]) => pt + continuousDeformationField1(pt))

// Apply to faceReference
val sampleMesh = faceReference.transform(sampleTransformation1)