Contr
Control P
ol Point Err
oint Error Log Files
or Log Files
For each dataset, the three Error Logs contain information on how closely the trajectory was
matched to each control point. They can be used to gauge how accurate the mapping artifacts
are, after the undistortion process.
Post-processing generates Error Log files that indicate
remaining errors in the device's trajectory
after processing with surveyed control points.
These are the three Error Log files:
▪
anchors_alignment.log
▪
anchors_verification.log
▪
anchors.log
Each corresponds to one of the post-processing stages. All three have the following structure:
# stamp anchor_id error_x error_y error_z error_yaw_deg use_orientation
enabled_alignment enabled_verification enabled_optimization
1464367049.798925160 Anchor00001 -0.00001 +0.00000 +0.00000
+0.00000 false true true true
1464367113.119625566 Anchor00002 -0.00001 -0.00000 +0.00000
+0.00000 false true false true
1464367168.296749677 Anchor00003 -0.00002 -0.00012 +0.00000
+0.00000 false true true true
Each line logs the following information:
▪
The time when the device was placed on the control point (Unix time).
▪
The control point's unique identifier.
▪
The remaining position error (x, y, z).
▪
The orientation error (yaw; can be ignored for now).
▪
The flags from the Dataset Control Points Info File are also printed, so you can see more
easily which control points were active during which post-processing stage.
Na
NavVis VLX
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User Guide
User Guide
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