Flipping, Reversing and Rotating Annotation Objects

LEADTOOLS provides several functions for manipulating annotation objects so they are flipped, reversed, or rotated.

Use the L_AnnFlip function to flip one or more annotation objects, top to bottom. Objects that contain text cannot be flipped or reversed. If one or more such objects are in a group of objects that is flipped or reversed on a common axis, the text will move to the new position, but will retain its orientation.

Use the L_AnnReverse function to reverse one or more annotation objects, left to right. Objects that contain text cannot be flipped or reversed. If one or more such objects are in a group of objects that is flipped or reversed on a common axis, the text will move to the new position, but will retain its orientation.

Use the L_AnnRotate function to rotate one or more annotation objects. Certain objects cannot be rotated (see the following list). If one or more such objects are in a group of objects that is rotated around a common center, those objects will move to new positions, but will retain their orientation.

Flipping and Reversing:

All annotation objects flip or reverse with the following notes:

ANNOBJECT_AUDIO - metafile does not flip/reverse

ANNOBJECT_BUTTON - text itself does not flip/reverse

ANNOBJECT_ENCRYPT - metafile does not flip/reverse

ANNOBJECT_FREEHANDHOTSPOT -- metafile does not flip/reverse

ANNOBJECT_HOTSPOT - metafile does not flip/reverse

ANNOBJECT_NOTE - text itself does not flip/reverse

ANNOBJECT_POINT - if the point uses an image, the image does not flip/reverse

ANNOBJECT_PUSHPIN - text itself does not flip/reverse

ANNOBJECT_RTF - text itself does not flip/reverse

ANNOBJECT_STAMP – the text flips/reverses, but the image and metafile do not flip/reverse

ANNOBJECT_TEXT - text itself does not flip/reverse

ANNOBJECT_TEXTPOINTER - the tail flips, but the text does not flip/reverse

ANNOBJECT_VIDEO - metafile does not flip/reverse

Rotating:

All objects rotate EXCEPT for the following objects:

ANNOBJECT_AUDIO

ANNOBJECT_BUTTON

ANNOBJECT_ENCRYPT

ANNOBJECT_FREEHANDHOTSPOT – the object rotates, but not the metafile

ANNOBJECT_HOTSPOT

ANNOBJECT_NOTE

ANNOBJECT_POINT

ANNOBJECT_PUSHPIN

ANNOBJECT_RTF

ANNOBJECT_TEXTPOINTER

ANNOBJECT_VIDEO

See Also

Displaying and Manipulating Annotation Objects