gimp/help/C/dialogs/set_canvas_size.html

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<HTML
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><TITLE
>Set Canvas Size</TITLE
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><H1
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><A
NAME="DIALOGS-SET-CANVAS-SIZE"
><SPAN
CLASS="INTERFACE"
>Set Canvas Size</SPAN
></A
></H1
><A
NAME="AEN1442"
></A
><A
NAME="AEN1444"
></A
><P
> The image canvas is the boundary of the image. Even if you have a
smaller or larger layer than the image boundary size, the maximum
image area that you can view is determined by the canvas size.
</P
><P
> The <SPAN
CLASS="GUILABEL"
>size</SPAN
> area will control how big or small
your new canvas will be, just as when you created a new image. The
<SPAN
CLASS="GUILABEL"
>Offset</SPAN
> area will control how your canvas is
clipped or expanded.
</P
><P
>
<P
></P
><DL
><DT
>Making the canvas smaller</DT
><DD
><P
> The offset fields will control how the upper left corner
of the old canvas will be positioned in the new canvas.
The best way to control the new location and how it will
be clipped is to drag the <SPAN
CLASS="QUOTE"
>"canvas preview"</SPAN
> in
the <SPAN
CLASS="GUILABEL"
>Offset</SPAN
> frame to the chosen
position. After that you make the final adjustments with
the <SPAN
CLASS="GUIBUTTON"
>spin</SPAN
> buttons (or type it in by
hand). The thin outline is the new canvas size and you
have to drag the old canvas to the correct position so it
will be clipped according to your demands.
</P
></DD
><DT
>Making the canvas larger</DT
><DD
><P
> The offset fields will control how the upper left corner
of the old canvas will be positioned in the new canvas.
The best way to control the new location and how the
canvas will be to be expanded is to drag the <SPAN
CLASS="QUOTE"
>"canvas
preview"</SPAN
> in the <SPAN
CLASS="GUILABEL"
>Offset</SPAN
> frame
to the correct position. After that you make the final
adjustments with the <SPAN
CLASS="GUIBUTTON"
>spin</SPAN
> buttons
(or type it in by hand). The outline/canvas is the new
canvas size and you have to drag the old canvas to the
desired position within it.
</P
></DD
></DL
>
</P
><P
> If you uncheck the <SPAN
CLASS="GUIICON"
>Chain Button</SPAN
>
in the <SPAN
CLASS="GUILABEL"
>Size</SPAN
> area, you will be able to have
different proportions for the new canvas. It's thereby possible,
for example, to have a canvas which is smaller in X direction and
bigger in Y direction than before the resize.
</P
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>Offset</SPAN
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>Up</A
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>Scale Image</SPAN
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>