Measure a plane with a spiral strategy / Eine Ebene mit einer Spirale erfassen

[[Ve...]]

Ich bin ziemlich neu in der Calypso, und hätte eine Frage zur Ebenenmessung.

Ist es möglich eine Ebene mit einer Spirale, statt konzentrischer Ringe zu erfassen?

Auf Kugeln und Kegeln kann ich ja eine Helix anlegen.

Ein Behilf wäre wohl die Ebene als Kegel mit paar µm Höhe zu messen und dann mit Punkterückruf wieder auf eine Ebene zurückzuholen, aber das wäre ja unnötig kompliziert.

[[Ch...]]

You can do so by creating a polyline on the plane and using the Polyline - Connect Points with Arc option. This will also you to create an arc with the last 3 points that were clicked on the surface and if you take your time to set it up you can make a pretty smooth spiral. Mine isn't perfect 😄 but yours will hopefully be better. 

[[Kl...]]

Collect the actuls by 3d-Curve and the surface by recall the points into plane

PointGenarator 3d-Curve

Start Index = 135      // °

End Index = 3735     // °; start angle + 5 revolutions

Step = 5     // °

10               // inner radius; constant

0.001         // gradient of the spiral

0                // nx

0                // ny

1                 // nz  perpenticular surface = parallel to Z-axis

point(10*cos(index)+0.001*index*cos(index), 10*sin(index)+0.001*index*sin(index), -5, 0, 0, 1)

Please play with the parameter to addapt it to your part

Good luck

[[Je...]]

Please sign in to view this username.

 and

Please sign in to view this username.

, thanks for both of your strategies!  Very useful.

Klaus, I experimented with your approach, and it works well:

[[Ka...]]

Thank you Klaus-Dieter,

But how to generate the points  perpenticular to X or Y ?
If I change the nx,ny,nz the vectors are correctly translated but not direction of the generated helix. This is allways  perpenticular to Z axis.

used formular:
point(20*cos(index)+0.001*index*cos(index), 20*sin(index)+0.001*index*sin(index), 0, -1, 0, 0)




 

[[Kl...]]

Hello Karsten

the example is made for X/Y plane, means normal direction of plane = Z

Y/Z plane: X is now the position of the plane and the rotation takes place around this axis.

                  X = constant and the path is shifted to Y and Z inside the formular

X/Z plane: Y is now the position of the plane and the rotation takes place around this axis.

                  Y = constant and the path is shifted to X and Z inside the formular. Take care of angle rotation of X/Z plane

Good Luck

Klaus