Known
Limitations of Compare Geometry
Compare
Geometry treats each solid as
a single entity. It does not compare the features of the parts, and cannot
point out differences in feature parameters. To compare features, click
Utilities, Compare Features.
When comparing analytic faces (planes, cylinders,
spheres, and so on) the equations of the underlying surfaces are used.
However, with spline faces, a discrete sampling technique is used to compare
the equality of the underlying spline surfaces. Under certain circumstances,
the comparison of spline faces may give inaccurate results.
The volume difference computation for parts containing
a large number of spline faces may occasionally fail. You can turn the
volume comparison option off for parts containing a large number of spline
faces.
If the faces are sliver faces or have very small
areas, the results for unique and modified faces may be incorrect.
If FeatureWorks is installed on your machine and
you open a part without parameterized
features, the following occurs:
FeatureWorks
displays a dialog box that asks if you want to proceed with feature recognition
for the imported part. Click No.
If you click Yes,
which starts feature recognition, do not click Run
Comparison in the Compare Features
Task Pane. Running the two simultaneously can have undesirable results.
Compare
Geometry requires that the two
parts (or assemblies) are in the same position with respect to the origin.
If one of the parts (or assemblies) has been moved, the results may be
incorrect. Select Align
parts to compare geometrically similar bodies located in different
positions, relative to the origin.