Displaying deviation

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Displaying deviation

Use this tool to show the distance from a source, or reference, body to a selected body or Mesh body. Use this analysis to see how closely the geometry of two bodies match up. For example, you would use the Deviation tool when you reverse engineer a design from mesh data to see how closely your design matches the mesh.

The Deviation tool also works to show deviation between meshes.

To display deviation

Click Deviation in the Quality group on the Measure tab.
Select a body or a mesh as the source, or reference, body.
Select a second body as the target body.

When you have two bodies selected, the system automatically calculates the deviation.

Only one Mesh can be selected.

In a small number of cases, deviation results may be exaggerated. You should take sample measurements in the areas of maximum inside and outside deviation to rule out the chance of exaggeration.

Options

The following options are available with the Deviation analysis tool:

Show edge curvature using

Source body sample spacing	Select the method for defining the sample point spacing.
	BodyA solid or surface. - Use body faceting vertices as sampling points Percentage - Enter a percentage of the body's diameter to define sample spacing Length - Enter a length to use as the sample spacing
Show	Display controls:
	Shading - Use textured shading to indicate deviation Porcupine - Use lines to indicate deviation Sample points - Show sample points in the deviation display Target - Show the target body in the display Transparent Target - If the target body is displayed, show it as transparent
Color transition	Slide the scale or click + or - to increase or decrease the smothness of the transition between colors in the display.
Tolerance	Display deviation results above a specified tolerance.
Colors	Select colors for the display.
	Inside distance - Choose a color for displaying distances to sample points inside of the target body Outside distance - Choose a color for displaying distances to sample points outside of the target body Distance within tolerance - Choose a color for displaying distances within the specified tolerance