PointDeviation
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Analyze Surface > Point Set Deviation Window Panels > PointDeviation |
The PointDeviation command uses colored line hairs to visualize the distance between geometry objects.
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Measured objects can be point objects, point clouds, curves, polylines, surfaces, polysurfaces, extrusions, meshes, and SubD.
Point objects, mesh vertices, and cloud points are directly used to measure. Analysis mesh vertices are used for other object types.
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Target objects can be curves, surfaces, polysurfaces, extrusions, and meshes.
Steps
Point Deviation panel
Start Analysis
Runs the PointDeviation command to start a new measurement.
Stop Analysis
Stops measuring the current objects.
Copy Results to Clipboard
Copies the statistics to Clipboard.
Settings
Ignore
Points with a distance equal to or greater than this value are not included in the analysis.
Bad
Points with a distance equal to or greater than this value are considered bad and displayed in red.
High / Medium / Low
Define intermediate deviation ranges between Bad and Good. These values are calculated from the Bad and Good values. Points with a distance equal to or greater than these values display in the specified colors.
Good
Points with a distance less than or equal to this value are considered good and displayed in blue.
- Red numbers indicate the distances entered are invalid. For example, the bad point distance is smaller than the good point distance.
- Click a color swatch to change the display color.
Proximity angle
Points qualify for display if the hair line is this close to the normal direction on either the curve or the surface. Default is 1 degree. No points disqualify at 180.
Hair scale
The hair is exaggerated by this factor from the actual distance to the curve or surface. Default is 10.
Curve divisions
Specifies the points to sample along the evaluated curves.
Surface min point count
Specifies the points to sample along the evaluated surfaces.
Show hairs
Display the hair line for each qualifying point.
Create hairs
Create a line object when the command terminates. Line objects are created on layers with names "Point Test <color>".
Results
Evaluated points
The number of point objects or sample points being analyzed.
Average distance
The mean distance between the evaluated points and the target object.
Median distance
The median distance between the evaluated points and the target object.
Standard deviation
The standard deviation distance between the evaluated points and the target object.
Maximum distance
The distance from the farthest evaluated point to the target object.
Minimum distance
The distance from the nearest evaluated point to the target object.
Command-line option
Visible (Yes / No / Toggle)
Displays or hides the Point Deviation panel, or change its visibility.
CurveDivisions (For curve only)
Specifies how many sample points to spread along a measured curve to evaluate deviation.
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When a line or polyline is measured, segment endpoints are also evaluated.
SurfaceMinPointCount (For surface only)
The minimum number of sample points generated per surface for deviation evaluation.