meshlib.mrmeshpy.Laplacian Class Reference

Classes
class	EdgeWeights
class	RememberShape

Public Member Functions
None	__init__ (self, Mesh mesh)
None	apply (self)
None	applyToScalar (self, VertScalars scalarField)
VertBitSet	firstLayerFixedVerts (self)
None	fixVertex (self, VertId v, bool smooth=True)
None	fixVertex (self, VertId v, Vector3f fixedPos, bool smooth=True)
VertBitSet	freeVerts (self)
None	init (self, VertBitSet freeVerts, EdgeWeights weights, Laplacian.RememberShape rem='Laplacian::RememberShape::Yes')
VertBitSet	region (self)
None	updateSolver (self)

Detailed Description

Generated from:  MR::Laplacian

Laplacian to smoothly deform a region preserving mesh fine details.
How to use:
1. Initialize Laplacian for the region being deformed, here region properties are remembered.
2. Change positions of some vertices within the region and call fixVertex for them.
3. Optionally call updateSolver()
4. Call apply() to change the remaining vertices within the region
Then steps 1-4 or 2-4 can be repeated.

Constructor & Destructor Documentation

__init__()

None meshlib.mrmeshpy.Laplacian.__init__	(		self,
		Mesh	mesh )

Member Function Documentation

apply()

None meshlib.mrmeshpy.Laplacian.apply

(

self

)

given fixed vertices, computes positions of remaining region vertices

applyToScalar()

None meshlib.mrmeshpy.Laplacian.applyToScalar	(		self,
		VertScalars	scalarField )

given a pre-resized scalar field with set values in fixed vertices, computes the values in free vertices

firstLayerFixedVerts()

VertBitSet meshlib.mrmeshpy.Laplacian.firstLayerFixedVerts

(

self

)

return fixed vertices from the first layer around free vertices

fixVertex() [1/2]

None meshlib.mrmeshpy.Laplacian.fixVertex	(		self,
		VertId	v,
		bool	smooth = True )

notify Laplacian that given vertex has changed after init and must be fixed during apply;
\\param smooth whether to make the surface smooth in this vertex (sharp otherwise)

fixVertex() [2/2]

None meshlib.mrmeshpy.Laplacian.fixVertex	(		self,
		VertId	v,
		Vector3f	fixedPos,
		bool	smooth = True )

sets position of given vertex after init and it must be fixed during apply (THIS METHOD CHANGES THE MESH);
\\param smooth whether to make the surface smooth in this vertex (sharp otherwise)

freeVerts()

VertBitSet meshlib.mrmeshpy.Laplacian.freeVerts

(

self

)

return currently free vertices

init()

None meshlib.mrmeshpy.Laplacian.init	(		self,
		VertBitSet	freeVerts,
		EdgeWeights	weights,
		Laplacian.RememberShape	rem = 'Laplacian::RememberShape::Yes' )

initialize Laplacian for the region being deformed, here region properties are remembered and precomputed;
\\param freeVerts must not include all vertices of a mesh connected component

region()

VertBitSet meshlib.mrmeshpy.Laplacian.region

(

self

)

return all initially free vertices and the first layer of vertices around them

updateSolver()

None meshlib.mrmeshpy.Laplacian.updateSolver

(

self

)

if you manually call this method after initialization and fixing vertices then next apply call will be much faster

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The documentation for this class was generated from the following file:

• mrmeshpy.pyi