The Mesh Analyzer command enables you to scrutinize a mesh entity based on the analysis of the noise of the mesh. During the command's processing phase an osculating surface is estimated for each point by taking the surrounding points into account. This osculating surface is then used for making all types of analysis.
The type of analysis to be performed is to be selected from the Mode drop-down list:
- Compute noise: used to calculate noise on the mesh. The distance of the points with respect to the osculating surface is measured as noise.
- Show min. curvature radius: used to estimate the minimum curvature radius of the mesh by using the osculating surface. This could be useful to visualize small fillets of the model.
- Show Gauss curvature: used to estimate the Gauss curvature of the mesh by using the osculating surface.
- Show curvature variation: used to visualize the presence of variation in the curvature of the mesh. The variation is computed by analyzing the curvature at one point with respect to the curvature computed on its neighboring points.
- Add normal to mesh: used to create a new mesh by using the normal at each point of the osculating surface. In general, the new mesh looks smoother than the initial one under shaded mode.
- Show osculating surface: used to create the osculating surface. You should select a node of the mesh for which the osculating surface will be computed.
After starting the command, select the mesh to be analyzed for the Mesh selector under
Points node. Now the
Preview 
button is displayed which when selected will make the computational analysis as per the parameters set for the other selection list options.
Note
Depending upon the selection made in the Mode drop-down list the options displayed in the selection list will vary. |
You can optionally define the zone of analysis by selecting a set of closed boundary curves for the Limits selector. So, instead of the whole mesh, the analysis is performed on a subset, whose limits are defined by the selected boundary curves. On expanding the
Limits node, additional options are displayed for defining the analysis zone in reference to selected boundary.
- Max. presumed distance - It is the criteria for nodes not too far from the boundary curves to define whether they are to be considered within the boundary or not. The
Max. presumed distance value can be presumed as the radius of a pipe along the contour. The value should be large enough to contain several triangles (within the pipe) on each side of the contour, but not too large to avoid ambiguities.
- Min. Distance - The distance of the nodes from the boundary curve should be more than the
Min. Distance value to be considered for analysis. Hence, it enables you to exclude those nodes that are very close to the boundary limits.
- Invert - It enables you to define which portion of the mesh with respect to the boundary curve is to be used for the analysis.
- When the check box is selected, the portion of the mesh lying outside the boundary curve is analyzed.
- When the check box is cleared, the portion of the mesh lying within the confines of the boundary curve is analyzed.
- Free Boundary - It enables you to define whether the portion of the mesh defined by the boundary curve is to be considered isolated from the remaining mesh or not. This has an influence in considering the neighborhood nodes when computing the analysis criteria on each node of the subset.
- When the check box is selected, the subset is considered to be disconnected from the remaining of the mesh, as if it is an independent mesh itself.
- When the check box is cleared, the subset is considered to be connected with the remaining mesh.
The analysis result is represented as a color map. The distribution of the result can be viewed graphically by selecting the Graph node. You can choose between a
Distribution or
Repartition graphs from the
Type drop-down list.
The computed minimum and maximum result values are displayed in the Min. value and
Max. value edit boxes, respectively. By changing any of these values, the color map will get updated to show the result between the new range.
The Node Number option can be used to scan the surrounding points of the specified node that were used to compute the noise. In case you want to scan only for nodes having noise above a particular value, select the
With Threshold check box. The value specified in the
Threshold edit box will set the minimum value of the noise above which the points will be scanned.
When the With Saddle option under
More Options is selected, the osculating surface can include saddle points resulting in the reduction of the measured noise.
The Copy check box under
More Options is available when the
Mode is set to
Add normal to mesh.
- When selected, the modifications are applied on the copy of the original mesh. Hence, the original mesh remains unaffected.
- When cleared, the modifications are applied on the original mesh itself and no new mesh is created.
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