Constructed Features are features that are fabricated by CM4D using existing Features as Reference Features. These calculated features can have any feature characteristics. The type is not derived based on characteristics like they are for the standard features in CM4D, but rather the type is determined by the feature type assigned. Constructed features can be created either manually in CM4D or with a DataSmith translator.
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Type |
Description |
Feature Specific Marker |
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Distance |
A calculated feature representing the distance between two features. |
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Midpoint |
A calculated feature representing the middle point between two features. |
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Plane |
A calculated feature representing the plane created by three features. |
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Polar |
A calculated feature that represents the Miniball radius of one or more features. See the topic Polar Charts for more information on Polar features and Miniball. |
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Range |
A calculated feature that represents the range of values of one or more features. |
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Reference |
A non-inspected feature point whose measurement values always have a deviation of zero. |
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Constructed Features in Sift Rules
The Constructed Feature types are available in the Sift Rules dialog.
Augment Reference Features
If you want to include the Reference features for any of the contructed features, either in a DataSet or the markers on a View, enable the Show/Hide option 'Add Rows for Reference Features' in the Sift Rules.
Feature marker behavior when a Distance feature references a Plane feature.
