Questions tagged [mesh]
Questions on the use and creation of meshes including the use of MeshRegion, ElementMesh, and TetGenLink.
712
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Dashed mesh behind 3D object
I am trying to create a simple, almost transparent 3D sphere with a mesh that is made of solid lines if they are on the front surface (i.e. if they are directly visible) and of dashed lines if those ...
- 2,439
9
votes
3
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8
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2
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Delaunay Triangulation for 3D Surface Data
I want to do a Delaunay triangulation on scattered 3D surface data. Mathematica itself does it only for 2D through the command DelaunayTriangulation[], which gives ...
- 141
8
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2
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Finding concave hull for separated small clusters
Data :
data3D = Import[file, "VertexData"];
Graphics3D[Point[data3D]]
How to find concave polygon for separated small clusters.
user1362
23
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3
answers
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Finding a Concave Hull
I have 3D clustered data:
Is there any other way to get the concave hull of 3D data points?
user1362
21
votes
3
answers
2k
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Build a refined grid based on intersecting line
I honestly have no idea where to begin with this problem. In summary, I have a 2D coarse grid with an intersecting line. For an easy example, let's assume it's a 4x4 grid.
I wish to pass through each ...
- 10.6k
6
votes
1
answer
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9
votes
1
answer
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Construct a simple mesh or tetrahedral mesh from 3D image surface
I have a 3D Y-Shape hollow tube, not so good surface.
Import["http://dl.dropbox.com/u/68983831/tube02.vtk", "Graphics3D"]
I tried to use following vertex data ...
user1362
9
votes
2
answers
936
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Function Interpolation with Automatic / Algorithmic Values Mesh
I have an underlying function f(x,y,z) that is computationally intensive, but is smooth and continuous. I'm needing to find the function values along a line in xyz. Currently, I'm calculating f at ...
- 133
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2
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How can the {x,y,z} points that fall on the outer boundary of a set of values be selected and smoothly surfaced?
For a given set of x,y,z values, that may, or may not form a uniform shape, how can the center of the data cloud be found, and the surface points be located and a solid smooth surface created from ...
- 4,376
24
votes
3
answers
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Removing unwanted appearance of underlying mesh
Let us first define two positive definite matrices:
M1 = {{2, -6}, {4, 8}};
M2 = {{2, 3}, {4, 8}};
then set two points ...
- 1,821
17
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4
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How to get actual triangles from DelaunayTriangulation[]?
The ComputationalGeometry package has a DelaunayTriangulation[] function. It returns a list of points connected to each point, ...
- 227k