SMC_DetermineCuboidBearing (FB)
FUNCTION_BLOCK SMC_DetermineCuboidBearing
This function block will determine the position of a cuboid (corner mark, edge alignment) in the space in dependence of 6 (3/2/1) points given:
For detailed information of transformation modules see the survey on Coordinate Transformations.
InOut:
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Scope |
Name |
Type |
Initial |
Comment |
|
Input |
A1 |
SMC_Vector3D |
First of three points that are located on the surface A of a cube and do not lie on a common line. |
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A2 |
SMC_Vector3D |
Second of three points that are located on the surface A of a cube and do not lie on a common line. |
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A3 |
SMC_Vector3D |
Third of three points that are located on the surface A of a cube and do not lie on a common line. |
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B1 |
SMC_Vector3D |
First of two points that are located on another cube surface B adjacent to A. The projection of this point on surface A may not coincide with the projection of B2. |
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B2 |
SMC_Vector3D |
Second of two points that are located on another cube surface B adjacent to A. The projection of this point on surface A may not coincide with the projection of B1. |
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C1 |
SMC_Vector3D |
Point on a further cube surface adjacent to A and B |
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Output |
M |
SMC_Vector3D |
Common corner point of cube surfaces A, B and C |
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|
vAB |
SMC_Vector3D |
Unit vector on edge line between A and B with start point M |
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vBC |
SMC_Vector3D |
Unit vector on edge line between B and C with start point M |
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vCA |
SMC_Vector3D |
Unit vector on edge line between A and C with start point M |
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bError |
BOOL |
Signals, that an error has occurred within the function block |
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nError |
WORD |
0 |
Error description:
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