Reference Manual
Chapter
5
IVC-2D
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SICK AG • Advanced Industrial Sensors • www.sick.com • All rights reserved
221
Coordinate Alignment
•
Mark one of the black squares in the pattern by placing the cross inside the square,
and click
Find calibration points
.
•
Click
Create
to calculate the transform and save it in a data block in the IVC-2D’s
working memory. When the transform is calculated, the estimated transform error is
displayed in the window.
Note the number of the data block in which the transform is created. This number is
used later when referring to the transform in the 'Get calibrated point' tool.
When creating a transform without aligning to an external coordinate system, the resulting
coordinate system will be aligned with the surface of the calibration target, with the origin in
the middle of the pattern.
Importing Coordinates from the External System
The world coordinates for each reference point can either be entered into the table on the
General
tab in the interactive setup, or imported from a file.
To enter external coordinates, do the following;
•
Make sure that the number of coordinates for each reference point is entered in the
Measurements/point
field on the
General
tab.
•
Click on the table for external coordinates. The table is now updated with the correct
number of rows according to the number of measurements per point.
•
Enter the external coordinates in the table.
To import external coordinates from a file, simply click
Import coordinates
to select the file
containing the coordinates. The number of measurements per point will automatically be
updated with the correct value.
You can edit the imported values for each point directly in the table. If you should need to
remove or add measurements from the list, you need to remove or add them in the file
and import that file again. Note that when importing coordinated from a file, any existing
values in the table will be replaced by the imported values.
The file containing the coordinates should have the following format:
x
A1
;y
A1
;z
A1
;x
A2
;y
A2
;z
A2
; ... ;x
An
;y
An
;z
An
<return>
x
B1
;y
B1
;z
B1
;x
B2
;y
B2
;z
B2
; ... ;x
Bn
;y
Bn
;z
Bn
<return>
x
C1
;y
C1
;z
C1
;x
C2
;y
C2
;z
C2
; ... ;x
Cn
;y
Cn
;z
Cn
<return>
x
D1
;y
D1
;z
D1
;x
D2
;y
D2
;z
D2
; ... ;x
Dn
;y
Dn
;z
Dn
<return>
where:
x
A1
is the x coordinate for the first measurement of reference point A,
x
A2
is the x coordinate for the second measurement of reference point A,
x
B1
is the x coordinate for the first measurement of reference point B,
etc.
Place the cross
inside a black
square
