Deviation Analysis
The Deviation Analysis tool is a diagnostic tool that calculates the angle between faces. You can select a single edge or a series of edges. The edges can be between faces on a surface, or any edges on a solid.
The analysis is based on the number of sample points that you select along the edges. You can examine operations which fail or have the potential for failure in any of the following situations:
-
Molds. Investigate problems with mold tooling along the split line of the mold, in conjunction with the Draft Analysis tool.
-
Fillets. Identify potential problems along tangent faces where a fillet operation fails.
-
Tangency requirements. Check along the edges of lofts, sweeps, or surface fills and verify that tangency requirements are met.
-
Maximum deviation. Identify problem areas along the edges of sweeps, lofts, or surface fills where there is maximum deviation.
After you use the Deviation Analysis tool, you can modify the results by controlling the appropriate entities within the model. For example, when you examine an edge along a surface fill, deviation analysis results vary according to the following:
-
Curvature Control. Select Contact or Tangent. Normally, Tangent yields a lower deviation between adjoining faces.
-
Optimize surface. Use the standard patch, or, with two, three, and four sided edges, apply the Optimize surface option to use the more efficient simplified patch.
To apply a deviation analysis:
-
Open the model with the edges you want to examine.
Note: The sample model on the right uses a surface fill.
-
Click Deviation Analysis  on the Tools toolbar, or Tools, Deviation Analysis.
The Deviation Analysis PropertyManager appears.
|
|
-
Under Analysis Parameters  , select the edges in the graphics area that you want to examine.
-
Use the slider to select the Number of Sample Points  to include in the analysis.
NOTE: The number of points is based on the size of the window client area. If you select more than one edge, the sample points are distributed across the selected edges, proportional to the edge length.
-
Click Calculate.
The colored arrows display the amount of deviation. The results appear for the following criteria between the adjacent faces:
-
Maximum Deviation - the maximum deviation error along the selected edge.
-
Minimum Deviation - the minimum deviation error along the selected edge.
-
Average Deviation - the average between the maximum and the minimum values along the selected edge.
 You can change the display colors for Maximum Deviation and for Minimum Deviation. To change the colors, click Edit Color to display the Color palettes, select a color for each deviation type, and click Calculate to apply the new colors.
|
|
|