Class HarmonicDiffusion

Use Laplace equation to diffuse an attribute (number or Array) given some constraints at nodes on triangulated surface.

Example

Diffuse a scalar field

const diff = new geom.HarmonicDiffusion(positions, indices)
laplace.constrainsBorders(-1)
laplace.addConstraint([-800,-300,-800], 1)
laplace.addConstraint([   0,-300, 800], 1)
const dataframe = diff.solve({name='P'}) // Serie.itemSize = 1

Example

Diffuse a vector field of size 3

const diff = new geom.HarmonicDiffusion(positions, indices, [0,0,0])
laplace.constrainsBorders(              [-1, -2, -3])
laplace.addConstraint([-800,-300,-800], [ 3,  2,  1])
laplace.addConstraint([   0,-300, 800], [ 1,  3,  5])
const dataframe = diff.solve({name='P', record: true}) // Serie.itemSize = 3