FE Mesh Quality Visualization Visualization - Revision history

Clisle at 14:32, 3 January 2007

2007-01-03T14:32:12Z

Clisle at 14:28, 3 January 2007

2007-01-03T14:28:45Z

Clisle at 14:25, 3 January 2007

2007-01-03T14:25:23Z

Clisle at 14:24, 3 January 2007

2007-01-03T14:24:24Z

Clisle at 14:24, 3 January 2007

2007-01-03T14:24:06Z

Clisle: /* Mesh Quality Visualization */

2007-01-03T14:22:40Z

Mesh Quality Visualization

New page

This topic of the FE project involves generating visuals using VTK that show the quality of individual elements in a Finite Element mesh. Generally, boundary elements are of lower quality than internal elements due to geometric constraints. It speeds up the mesh generation process if quick visualizations are constructed to provide element quality feedback in advance of importing the mesh into the FE simulation package.

# Mesh Quality Filter

Visualizations utilize the vtkMeshQuality filter to evaluate mesh elements. We plan to extend the current mesh quality algorithms to add more tests for Hexahedral mesh element types in the future.

# Rendering Techniques

The mesh quality filter adds float point "quality" values to each VTK cell in the mesh dataset. There is a one-to-one correspondence between mesh elements and cells in a vtkUnstructuredGrid object. Several techniques are planned, including dynamic element sizing and thresholding elements above an adjustable quality value.

@@ Line 4: / Line 4: @@
 Visualizations utilize the vtkMeshQuality filter to evaluate mesh elements.  We plan to extend the current mesh quality algorithms to add more tests for Hexahedral mesh element types in the future.
 '''Rendering Techniques'''
-The mesh quality filter adds float point "quality" values to each VTK cell in the mesh dataset.  There is a one-to-one correspondence between mesh elements and cells in a vtkUnstructuredGrid object.   Several techniques are planned, including dynamic element sizing and thresholding elements above an adjustable quality value.
+The mesh quality filter adds floating point "quality" values to each VTK cell in the mesh dataset.  There is a one-to-one correspondence between mesh elements and cells in a vtkUnstructuredGrid object.   Several techniques are planned for the visualization tools constructed by this project, including dynamic element sizing and thresholding elements above an adjustable quality value.  In the example shown here, each element is reduced in size, yet keeps its aspect ratio.  Each element is colored according to its individual quality value.
 [[Image:hexQual4 - Dec06.png]]

← Older revision		Revision as of 14:28, 3 January 2007
Line 8:		Line 8:

	The mesh quality filter adds float point "quality" values to each VTK cell in the mesh dataset. There is a one-to-one correspondence between mesh elements and cells in a vtkUnstructuredGrid object. Several techniques are planned, including dynamic element sizing and thresholding elements above an adjustable quality value.		The mesh quality filter adds float point "quality" values to each VTK cell in the mesh dataset. There is a one-to-one correspondence between mesh elements and cells in a vtkUnstructuredGrid object. Several techniques are planned, including dynamic element sizing and thresholding elements above an adjustable quality value.
		+
		+	[[Image:hexQual4 - Dec06.png]]

@@ Line 1: / Line 1: @@
 This topic of the FE project involves generating visuals using VTK that show the quality of individual elements in a Finite Element mesh.  Generally, boundary elements are of lower quality than internal elements due to geometric constraints.  It speeds up the mesh generation process if quick visualizations are constructed to provide element quality feedback in advance of importing the mesh into the FE simulation package.
-= Mesh Quality Filter
+'''Mesh Quality Filter'''
 Visualizations utilize the vtkMeshQuality filter to evaluate mesh elements.  We plan to extend the current mesh quality algorithms to add more tests for Hexahedral mesh element types in the future.
-= Rendering Techniques
+'''Rendering Techniques'''
 The mesh quality filter adds float point "quality" values to each VTK cell in the mesh dataset.  There is a one-to-one correspondence between mesh elements and cells in a vtkUnstructuredGrid object.   Several techniques are planned, including dynamic element sizing and thresholding elements above an adjustable quality value.

@@ Line 5: / Line 5: @@
 Visualizations utilize the vtkMeshQuality filter to evaluate mesh elements.  We plan to extend the current mesh quality algorithms to add more tests for Hexahedral mesh element types in the future.
-# Rendering Techniques
+## Rendering Techniques
 The mesh quality filter adds float point "quality" values to each VTK cell in the mesh dataset.  There is a one-to-one correspondence between mesh elements and cells in a vtkUnstructuredGrid object.   Several techniques are planned, including dynamic element sizing and thresholding elements above an adjustable quality value.