Gocator Line Profile Sensors: User Manual
How Gocator Works • 53
data and measurement results are in a coordinate system that places the X and Yorigins at the center of
the part. The Z origin is at the bottom of the alignment target (or in the center of the measurement
range if the sensor is unaligned).
The Frame of Reference setting, in the Part Detection panel on the Scan page, controls
whether part data is recorded using sensor/system coordinates or part coordinates.
Switching between Coordinate Systems
In many situations, when working with section data or part data that has been recorded with Frame of
Reference set to Part, it is useful to have access to the "real-world"coordinates, rather than part- or
section-relative coordinates. Gocator provides special "global"measurements, in the Bounding Box
tools, that you can use in Gocator scripts to convert from part or section coordinates to sensor/system
coordinates.
For more information, see the Profile Bounding Box tool or the Surface Bounding Box tool, and the
Script tool.
Uniform Spacing (Data Resampling)
Data produced in Profile mode is available in two formats: with and without uniform spacing. Uniform
spacing is enabled in the Scan Mode panel, on the Scan page.
When uniform spacing is enabled, the ranges that make up a profile are resampled so that the spacing is
uniform along the laser line (X axis). The resampling divides the X axis into fixed size "bins." Profile points
that fall into the same bin are combined into a single range value (Z). The size of the spacing interval can
be set under the Spacing tab in the Sensor panel on Scan page.
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