Auto Filter Proximity Settings
In most cases the cloud filter settings saved with each feature are the best filter controls because they can be set independently. Select Use Filter Settings to use the saved feature settings from the individual features.
Using the 3D Nominal Geometry Auto Filter Settings
This filter process takes the selected point clouds and detects from those clouds the cloud points that fall within a specified proximity to the nominal feature. This filter process falls into two categories: 2D and 3D objects and the controls for each are separately designed.
For 3D objects such as Planes, Cylinders, Cones and Spheres there are two basic parameters to consider:
-
Surface Inclusion Proximity (A). This parameter defines how close the cloud points must be to the surface of a feature in order to be included for that feature. This can be limited to only one side of the nominal feature if desired. This needs to be set large enough to account for any error in the measurements but not so big as to pick up data from other features.
-
Edge Exclusion Proximity (B). Cloud points too close to the edge of a feature often include bad points. For this reason we provide a means to exclude those points based upon a preset distance from that edge.
2D features such as circles require an additional parameter because they are both detecting the measured plane used for projection and the filter points. Therefore there are three parameters to consider.
-
Planar Inclusion Proximity (A). This parameter defines the distance from the planar surface or how deeply into a hole the filter will look.
-
Planar Exclusion Proximity (B). The filter is looking to gather points from the inner wall of the measured cylindrical surfaces not the measured plane points. To exclude these, this parameter allows you to set the extent of data ignored relative to the nominal planar surface. This can be compared to the Edge Exclusion Proximity (B) setting for 3D features.
-
Radial Inclusion Proximity (C). Much like the Surface Inclusion Proximity using for 3D Objects, this parameter provides a setting to define the extent of data included relative to the inner wall of the hole. This parameter can be set fairly large unless there are other holes or features close by. The numeric value entered defines the distance from the wall of the hole or, when the “On Axis Only” option is enabled, relative to the hole center axis.
These values defines either the total bidirectional distance, when the Both option is checked or a singe direction value when either the Positive only or Negative only options are set.