Gocator 2300 & 2880 Series
Theory of Operation • Profile Output • 46
For Wide and Opposite layouts, profiles and
measurements from the Main and Buddy
sensors are expressed in a unified coordinate
system. Isolated layouts express results using a
separate coordinate system for each sensor.
Uniform Spacing (Data Resampling)
Profile 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.
With uniform spacing 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.
As a result, when uniform spacing is enabled, in the Ethernet data channel, only the range values (Z) are
reported and the X positions can be reconstructed through the array index at the receiving end (the
client).
Resampling to uniform spacing reduces the complexity for downstream algorithms to process the profile
data from the Gocator, but places a higher processing load on the sensor's CPU.
In contrast, the profile format without uniform spacing set requires no processing on the sensor. Ranges
are reported in (X, Z) coordinate pairs. This frees up processing resources in the Gocator, but usually
requires more complicated processing on the client side.
Most built-in measurement tools in the Gocator in Profile mode operate on profiles with uniform
spacing; some tools can operate on profiles without uniform spacing. For more information on the
profile tools, see Profile Measurement on page 144.
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