Revoking Transformations

The function transPop() removes the topmost transformation from the transformation stack. When transPop() removes a transformation from the transformation stack, the stack depth is reduced by one and T_U is adapted accordingly. Commonly, the transPop()-function is used to revoke a temporary transformation.

Example:

In the following example the translation is applied to N10, N20 and N30. The rotation is only applied to N20 as it is revoked by transPop(). Figure “ExampleRevokingTransformations” shows the resulting MCS (machine coordinate system) path. Note that the rotation center is [20,0,0] in MCS (machine coordinate system), which is the origin in PCS (program coordinate system) after the preceeding translation.

!transTranslate(20,0,0);
N10 X10 Y0 F6000
!transRotZ(90);
N20 X20 Y0
!transPop();
N30 X30 Y0
!transPop();
M02

Figure “ExampleRevokingTransformations”.