Points > Merge merges two or more point objects into one, automatically performs noise reduction, uniform sampling, and surface wrapping, and places the resulting polygon object in the Model Manager in an object named Merged N. (To select more than one point object in the Model Manager, click one point object then Ctrl-click additional point objects.) This is similar to Polygons > Merge.
If the resulting polygon object will be large (large being defined by a value configured at Tools > Options > General > File I/O > Large Data), then the number of triangles in the resulting object is automatically and permanently thinned according to those Large Data settings.
The controls are:
Load Full Data checkbox (appears only if a non-WRP point file was loaded and Keep Full Data on Sampling was checked in the File > Open dialog) - reloads excess data that was stored in a holding file during File > Open and subjects the data set to this Merge operation.
Local Noise Reduction dropdown (None, Min, Medium, or Max) - specifies the degree of noise reduction (removal of outlying points or polygons) to be performed on the original objects before registration takes place.
Global Registration checkbox - specifies whether to add global registration to the process. If checked, the parameters are:
Max Deviation field - specifies the greatest distance between corresponding points on different objects that must be achieved before the objects are considered to be fully registered.
Max Iterations field (1 to 1000) - specifies the maximum number of passes that can occur in the effort to achieve registration that is within Max Deviation.
Sampling dropdown (5%, 10%, 25%, 50%, or 100%) - specifies the percentage of points or polygons that will be considered during the registration process.
Global Noise Reduction dropdown (None, Min, Medium, Max, or Auto) - specifies a degree of noise reduction (removal of outlying points or polygons) that will occur after the registration and merging of points.
Sampling group - specifies a degree of data reduction that will occur during the merge process.
Point Spacing checkbox and field - specifies an ideal (minimum) distance between points in the resulting object.
Target Triangles checkbox and field - specifies an ideal (maximum) number of triangles in the resulting object.
Slider (5 degrees from Performance to Quality; only when Target Triangles in ON and Point Spacing if OFF) - based of Target Triangles, calculates a point spacing that minimizes execution time or maximizes triangle quality.
Keep Original Data checkbox - whether to keep or delete the original point objects in the Model Manager.
OK button - merges the point objects and saves Merged to the Model Manager.
Cancel button - closes the dialog without merging.