Index

Definition by source-target points

Ver: 0
 

DESCRIPTION

This menu allows for an easy definition of the geometrical transformation for a periodic condition.

The transformation projects source points onto target points. The user specifies the coordinates of 2 (3 in 3D) sources points and the coordinates of their corresponding target points. With those data, polydata is able to calculate the rotation matrix and translation vector of the transformation.
 

  OPTIONS
 
-1 Abort
Aborts the current definition of the transformation and returns to upper level menu
0 Compute transformation parameters
Asks for the computation of transformation parameters with current source/target points
1 Modify all points
Allows to set coordinates of all source/target points sequentially
2 Modify source point 1
Allows to set coordinates of source point 1
3 Modify target point 1
Allows for testing the current transformation : the user specifies a point and polydata gives the result of the transformation when applied to that point.
4 Modify source point 2
Allows to set coordinates of source point 2
5 Modify target point 2
Allows to set coordinates of target point 2
6 Modify source point 3
Allows to set coordinates of source point 3
(Available in 3D only)
7 Modify target point 3
Allows to set coordinates of target point 3
(Available in 3D only)
NOTES
Polydata issues explicit error messages when the transformation parameters cannot be computed.

It is recommended to check the transformation by accessing the 'Test of the transformation' sub-menu of the 'Transformation parameters' menu.

SEE ALSO