tackdown(1)

NAME
tackdown - External module for permanently transforming Geomview objects.

SYNOPSIS
tackdown

DESCRIPTION

Tackdown is a tool to permanently transform objects in Geomview. Tackdown first reads the target geometry from Geomview. It then reads the transform of the target geometry, and applies the transform to the object. The old target geometry is replaced by the transformed version. Once tackdown has been run on an object, centering it will cause it to go back to the last place it was tacked down.

Make sure the normalization is off - otherwise, Geomview will renormalize the object and it will return to the origin.

The user may select the desired coordinate system using the buttons at the bottom of the panel. Note that tacking an object down in the universe coordinate system when the transform of the world object is not the identity may cause the object to appear to thave changed position. This is because the world transform is incorporated into the universe transform. When the new object appears, the world transfrom will be applied to it twice: once via the transform that was permanently applied to it by tackdown and once by Geomview when the object was drawn. To get the object to reappear where you expected it to be, set the transform of the world to the identity matrix.

BUGS
Tackdown may not be run on the world geometry.

AUTHOR
Celeste Fowler                  email:  fowler@geom.umn.edu
The Geometry Center             phone:  (612) 626-8304
1300 South Second Street
Minneapolis, MN  55454