Autodesk AUTOCAD 2006, Command Reference Manual, Page: 1020 / 1490

V). Adjust the offset by using the two scroll bars to the right and below the
diagram (enclosed by the outer box, labeled Offset) or by entering a value in
Offset U and Offset V. The bitmap rectangle moves to reflect the new offset.
If Tile is selected and you change the offset so that the bitmap rectangle appears
outside the projection rectangle, the bitmap is still applied to the object when
you render it. (During tiling, the offset acts as a displacement, not an absolute
position.) However, if Crop is selected, the bitmap is rendered only where you
place it, as indicated by the diagram; so if the diagram shows the bitmap
outside the projection rectangle, the bitmap does not appear in a rendering.
Scale
Specifies the number of times the bitmap fits onto the object in the U or V
direction. Adjust the bitmap scaling by using the two scroll bars to the left
and above the diagram (enclosed by the inner box, labeled Scale), or by
entering a value in Scale U or Scale V. The dimensions of the bitmap rectangle
change to reflect the new scaling.
Maintain Aspect Ratio
Locks the U and V scaling dimensions together. Moving one scroll bar moves
the other, and a value you enter in Scale U or Scale V changes the other.
Object Size
Adjusts the size of the preview cube. You can use this option to preview the
number of times the pattern tiles across the render objects. The larger the
cube, the more material tiles are displayed.
Tiling
Controls how the bitmap is tiled.
Crop
Does not tile the bitmap. Outside the bitmap area, the object or objects are
rendered with the material colors.
Fit to Object
Specifies a fit to the object for rendering landscapes or objects whose material
is based on a single image, such as a billboard or a wall painting. Bitmap
placement offset and scale values must be adjusted manually.
Fixed Scale
Specifies a fixed scale for rendering materials built from images containing
multiple, repeated patterns, such as bricks, stonework, tile, and wallpaper.
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