#### Feature Weights

Each feature used as an input has an associated weight. The default value for these weights is 1. You can modify the weights in the edit window or in the dialog box. The values of these weights affect the resulting alignment. The larger the weight of a particular feature, the more the resulting alignment will attempt to match the measured value of that feature to its theoretical value. This allows you to assign priorities to the features in the alignment. If the weights of all the input features are equal then the features will be treated equally, regardless of the value of the weight.

Any of the weights can be edited by selecting the feature in the Alignment Features selected list and double-clicking the specific Weights value. The weight will now be editable. Edit the value as needed then click outside the field to set the new value. The new value will then be assigned to that feature and used during the calculations.

Weights may also be assigned to each feature based on its associated dimension. If there is no associated dimension, it will be assigned a default tolerance. The weights are assigned by clicking the Set button. A composite weight for the feature is then computed by multiplying the user defined weights with the tolerance weights.