"Protection" Section
It this section you can lock some parameters of the object against changing: they will
remain unchanged when you manipulate the object with the mouse or with the keyboard.
However, even when locked, these parameters can be still changed in the Object Parameter
Table.
Note: They may also be changed when you apply some actions to a group to which the object belongs (resizing, etc.) But you can use the Format / Behaviour dialog to set the behaviour of the object within a group.
The locked handles of the object appear as grey padlocks.
All values of this section are binary values.
LockWidth
Locks the object's width against resizing.
TRUE - the width can't be sized;
FALSE - the width can be sized.
LockHeight
Locks the object's height against sizing.
TRUE - the height can't be sized;
FALSE - the height can be sized.
LockMoveX
Locks the object against moving it horizontally.
TRUE - horizontal movements are prohibited;
FALSE - horizontal movements are allowed.
LockMoveY
Locks the object against moving it vertically.
TRUE - vertical movements are prohibited;
FALSE - vertical movements are allowed.
LockAspect
Locks the object against unproportional resizing.
TRUE - only proportional resizing is possible;
FALSE - both proportional and unproportional resizing is possible.
LockCalcWH
Sets whether the alignment box of the object remains the same after you move a vertex on the object, or changes according to the new contour of the object.
TRUE - the alignment box remains the same;
FALSE - the alignment box changes according to the new contour.
LockRotate
Locks the object against rotation.
TRUE - the rotation is prohibited;
FALSE - the rotation is allowed.
LockDelete
Locks the object so that it cannot be deleted. When you try to delete a locked object, a warning is displayed that it can't be deleted.
TRUE - the object is protected against deleting;
FALSE - the object can be deleted.
Note: If you want to protect a large number of objects against deleting, it is convenient to assign them all to a separate layer, and then lock that layer in the Layer Properties dialog.
LockBegin
Locks the begin point of the object (for 1D objects) against repositioning.
TRUE - the point is locked;
FALSE - the point is not locked.
LockEnd
Locks the end point of the object (for 1D objects) against repositioning
TRUE - the point is locked;
FALSE - the point is not locked.
LockVertex
Prevents vertices from deleting or repositioning them with the mouse.
TRUE - the vertices of the figure can not be deleted or repositioned;
FALSE - the protection is off.
Note: Alternatively, some of these parameters can be changed in the Protection dialog (Format menu).
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