Laplacian smooth

[Hwriter]

how to Laplacian Smooth vertices

[Hwriter]

use python

[Grantim]

Hello!

Could you please some more details about what do you want to achieve. We have several function for smoothing:

relax
relaxKeepVolume
relaxApprox
positionVertsSmoothly
positionVertsSmoothlySharpBd

Also there is meshDenoiseViaNormals that is not available in python yet

[Hwriter]

How can I use these three methods？

[Grantim]

There is example in our test files:

MeshLib/test_python/test_positionVertsSmooth.py

Lines 5 to 14 in c3c3cf3

	def test_position_verts_smooth():
	R1 = 2
	R2_1 = 1
	R2_2 = 2.5
	torus = mrmesh.makeTorusWithSpikes(R1, R2_1, R2_2, 10, 12, None)
	params = mrmesh.LaplacianEdgeWeightsParam.Cotan
	verts = torus.topology.getValidVerts()
	verts.set(mrmesh.VertId(0), False)
	mrmesh.positionVertsSmoothly(torus, verts, params)

Different weight parameters refer to different "Positioning Type":
mm.LaplacianEdgeWeightsParam.Unit - Simple,
mm.LaplacianEdgeWeightsParam.Cotan - Standard,
mm.LaplacianEdgeWeightsParam.CotanWithAreaEqWeight - Varying Density

also you can call
mm.positionVertsSmoothlySharpBd before mm.positionVertsSmoothly to get better result in some cases

[Hwriter]

Thank you for your reply. I have found examples, but I am still not very good at using these functions. May I ask if there is a corresponding help document?

[Grantim]

Now we have python documentation embedded into module, you can find it with help() command in python. Also we have https://doc.meshinspector.com/PythonCodeExamples.html this page with basic examples that might be helpful for you. (There is also c++ documentation that corresponds to python modules too, as far as our python modules are just bindings around c++ library)

[Hwriter]

Thank you sincerely for your reply. Your work has been very helpful to me.