Note that when you change some Flush and Gap parameters,
and you don't have any CAD data, PC-DMIS will adjust some parameters'
values automatically. This topic details what gets changed and how the
software computes those automatic values.
Key: Use these abbreviations
when viewing the equations below:
CPV
= Cut Plane Vector
VV
= View Vector
x = Cross Product
GV
= Gap Vector
GD
= Gap Distance
GP
= Gap Point
GPV
= Gap Point Vector
When Typing in a Gap Point Value or Modifying it by
Read Position...
The current probe vector is used as the View
Vector.
The current stripe vector is used as the Gap
Vector.
The new cut plane is located in the Gap point,
and the new Cut Plane Vector is computed:
Master Side Point and Gauge Side Point are
ESTIMATED at from the
new Gap Point along the Gap Vector.
If the Flush distance is positive, the
Master Side Point is translated along the View Vector of the flush
value.
If the Flush distance is negative, the
Gauge Side Point is translated along the View Vector of the flush
value.
The Master Side Surface Vector and the Gauge
Side Surface Vector are set with the View Vector.
When Typing in a View Vector Value...
The new cut plane is located in the Gap point,
and the new Cut Plane Vector is computed:
The Gap Vector is computed to be orthogonal
to the new View Vector:
The Master Side Surface Vector and the Gauge
Side Surface Vector are projected onto the new cut plane.
The Master Side Point and Gauge Side Point
are projected onto the new Cut Plane.
When Typing in a Gap Vector Value...
The new cut plane is located in the Gap point
and the new Cut Plane Vector is computed:
The View Vector is computed to be orthogonal
to the new Gap Vector:
The Master Side Surface Vector and the Gauge
Side Surface Vector are projected onto the new cut plane.
Master Side Point and Gauge Side Point are
projected onto the new Cut Plane.
When Typing in a Master Side Point Value or Modifying
it by Read Position...
The new cut plane is computed orthogonal to
the View Vector and the Master Side Point minus the Gap Point:
The Gap Vector is computed orthogonal to the
new View Vector.
The Master Side Surface Vector, the Gauge Side
Surface Vector and Gauge Side Point are translated onto the new cut
plane.
When Typing in a Gauge Side Point Value or Modifying
it by Read Position...
The new cut plane is computed centered on the
new Master Side Point and orthogonal to the View Vector and the Master
Side Point minus the Gauge Side Point:
The Gap Vector is computed orthogonal to the
new View Vector:
The Master Side Surface Vector, the Gauge Side
Surface Vector, and Gap Point are translated onto the new cut plane.
When Typing in a Flush Distance Value...
The Master Side Point and/or the Gauge Side
Point are translated according the new flush value along the Master
or Gauge Side Surface Vector.
When Typing in the Distance Value...
The Master Side Point and/or the Gauge Side
Point are translated according the new gap value along the Gap Vector.
from the
new Gap Point along the Gap Vector.
