The feature transformation panel is part of the feature properties dialog box. It is used to transform features using rotation, scaling and translation (in that order).
Transformations can be enabled and disabled using the Apply transformations
check box.
If transformations are disabled they will no be applied to features and the rest of the panel will become disabled.
The Transformation centre sub-panel defines the centre of all
transformations. The X, Y and Z coordinates of the centre are entered in the
corresponding text boxes.
The transformation centre affects rotation and scaling, but has no effect on
translation.
By default, the transformation centre is the centre of the model that the
selected features belong to, if any.
The Rotation sub-panel defines the rotation of the features around the
transformation centre.
The angles of rotation in degrees around the X, Y and Z axes can be set by using the sliders or
by entering the values directly into the corresponding text boxes.
The angles must be between 0 and 360 degrees and are added to the starting
position of each feature.
The X rotation is applied to the features first, then the Y rotation and then the Z rotation.
The Scale factor sub-panel defines the scaling of the features relative
to the transformation centre.
The scale factors in the X, Y and Z directions are entered into the corresponding text
boxes.
The scale factors must be greater than 0. A scale factor of 1.0 means no
scaling.
Note that the scaling affects the distance of each feature from the transformation centre
as well as its size.
The Translation sub-panel defines the translation of the features.
The translations in metres in the X, Y and Z directions are entered into the corresponding text boxes.
Negative values are allowed.
The translation gives an offset for the features from their starting positions.
This is often useful when positioning externally loaded features.
Clicking the Reset button will reset the transformation settings back to their default values.
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