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Belgian Amiga Club - ADF Collection
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BS1 part 60
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Imagemaster d4.adf
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mb_hlp
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\ApAssist
\: - This is the Quick Help for the buffer panel -
\: ----------------------------------------------------------
\: Written by David E. Patterson
\: ----------------------------------------------------------
\font topaz.font 8
\tc 1
\wr
\lj
\dd "imh_descriptor"
\index "hlp_index/index"
\toc "hlp_toc/toc"
\help "aa_help/help
\node "mb_killprimary"
\title "Kill Primary Buffer"
\next "mb_killother"
\prev ""
This \{ \tc 10 \ts b will KILL \} the primary buffer. If you have not saved,
any image manipulations \{ \ts i will be lost\} . \{ \ts b Imagmaster R/t
\} will allow you to choose another primary buffer, if you have more than one
buffer loaded. If you have no other buffers there will not be a selection
menu available.
\endnode
\node "mb_killother"
\title "Kill other Buffer"
\next "mb_newbuffer"
\prev "mb_killprimary"
Using this will give you the option to KILL any buffer, except the primary.
Remember that if you have not saved, any changes \{ \ts i will be lost \} .
\endnode
\node "mb_newbuffer"
\title "New Buffer"
\next "mb_selprimary"
\prev "mb_killother"
The New Buffer panel gives you the oportunity to create a new buffer. The
new buffer can either be customized or can be created using the blend control
buffer.
\endnode
\node "mb_selprimary"
\title "Select Primary Buffer"
\next "mb_selsecondary"
\prev "mb_newbuffer"
This allows you to choose the primary buffer from the current buffers that
are loaded.
\endnode
\node "mb_selsecondary"
\title "Select Secondary Buffer"
\next "mb_selblendctrl"
\prev "mb_selprimary"
This allows you to choose the secondary buffer from the currently loaded
buffers. The secondary buffer is necessary for all operations in the \{ \tc
10 \ts i Compose \} panel.
\endnode
\node "mb_selblendctrl"
\title "Select Blend Control Buffer"
\next "mb_useundo"
\prev "mb_selsecondary"
This allows you to select a buffer as a blend control. The blend buffer can
be any buffer that is currently loaded, but generally the primary buffer is
choosen as the blen control.
\endnode
\node "mb_useundo"
\title "Use Undo Buffer"
\next "mb_renamebuffer"
\prev "mb_selblendctrl"
The undo buffer is an extremely important feature in \{ \ts b Imagemaster R/t
\} . It is important to note that an undo buffer for a 24 bit RGB image will
require as much memeory as the original image. If this is selected \{ \ts b
Imagemaster R/t \} will always try to use the undo buffer.
It is also important to note that several processes require the use of the
undo buffer. This is because the undo buffer is used as a reference for the
process which is taking place in the primary image. If an operation requires
an undo buffer \{ \ts b Imagemaster R/t \} will tell you if an undo buffer
has not been allocated.
Memory constraints are a concern for most users, and this situation is even
further complicated by the use of an undo buffer. As previously stated the
undo buffer will use the same amount of memory as the primary image. A
solution to this "memory shortage" is to clip out the region you are working
on. After clipping out the area you wish to work on, click on the undo
buffer. Since this is a much smaller image than the original the memory
requirements are much less. You can then use the \{ \tc 10 \ts i Restore to
Src Buffer \} button to replace the altered clip back to the original image.
By doing this you have avoided using the large amounts of memory that the
entire primary image would have required.
See Also: \{ \tc 15 \link "Restore to Source Buffer" "mb_restoretosrc" \}
\endnode
\node "mb_renamebuffer"
\title "Rename Buffer"
\next "mb_restoretosrc"
\prev "mb_useundo"
This operartion will allow you to rename any active image buffer, excluding
the \{ \tc 10 \ts i Undo Buffer\} . Buffers may have the same name, but it
is not wise to call two buffers the same name. \{ \ts b Imagmaster R/t \}
will not confuse two buffers with the same name, but you might!
\endnode
\node "mb_restoretosrc"
\title "Restore to Source Buffer"
\next "mb_swapcurrent&sec"
\prev "mb_renamebuffer"
This allows you to replace a clipped out region exactly back to the area it
was clipped from in the primary image. There is one restriction, the image
that you will be clipping back to must remane in active memory. A reloaded
image \{ \ts i will not work\} .
\endnode
\node "mb_swapcurrent&sec"
\title "Swap Current and Secondary"
\next "mb_swapcurrent&blend"
\prev "mb_restoretosrc"
This button will swap the primary and secondary buffers. This button will be
ghosted if a primary and secondary buffers are not specified.
\endnode
\node "mb_swapcurrent&blend"
\title "Swap Current and Blend Control"
\next "mb_unlockbuffer"
\prev "mb_swapcurrent&sec"
This allows you to quickly get to the blend control buffer, provided one has
been selected, and work on it. Since this is a swap, it is simple to return
to the original buffer by pressing this button again.
\endnode
\node "mb_unlockbuffer"
\title "Unlock a Buffer"
\next "mb_setaspectdpi"
\prev "mb_swapcurrent&sec"
Unlocking buffers is a way for a user to unlock a buffer which may have been
locked. This is rarely used, and in most cases, the normal user will not use
it. However, if you are developing PI Modules, it can be very useful.
Unlocking a buffer has its consequences. If the buffer is still being
accessed by an external process it could be deleted, or even exit and delete
everything. After all of this the task, which was writing to the buffer,
will now be writing to what the system thinks is free memory. This button
will warn the user that unlocking \{ \ts i is not \} normally advised.
\endnode
\node "mb_setaspectdpi"
\title "Set Current Aspect and DPI"
\next "mb_cat"
\prev "mb_unlockbuffer"
This button allows you to customize each image to your display, and to change
the aspect ratio. If you save your image after changing its aspect it will
contain that aspect the next time it is loaded, not the original aspect.
\{ \ra \image "Clips/Bullet2.pic" l 10 \cap
First, the size of the disered output area (screen, output paper, etc) must
be measured for length and height.
\}
\{ \ra \image "Clips/Bullet2.pic" l 10 \cap
Next, the pixel width is determined by dividing the width of the output
device by the number of pixels. For example, 320 pixels is aproxximatly 10.5
inches on our 1084 monitor. The pixel width would be: (10.5/320) = .033
inches/pixel horizontally.\}
\{ \ra \image "Clips/Bullet2.pic" l 10 \cap
The same process would be used to determine the height. For example, we
found that in non-interlace mode the displayed region was 8 inches. The
pixel hieght would be: (8.0)/200) = .04 inches vertically. \}
\{ \ra \image "Clips/Bullet2.pic" l 10 \cap
The aspect ratio can now be calculated. For example, using the previouss
values: (.033/.04)100 = 83%. This process can be repeated for any number of
resolutions.\}
\endnode
\node "mb_cat"
\title "Add Image to Catalog"
\next "mb_edit"
\prev "mb_setaspectdpi"
This selection will add the current primary buffer to the catalog. You will
only need to use this function if you have the \{ \ts i \ts 10 Auto Catalog
\} button, in the \{ \ts i Setup \} panel, turned off.
\endnode
\node "mb_edit"
\title "Edit Image Annotation"
\next ""
\prev "mb_cat"
This selection allows you to edit any text notes that have been saved with an
image.
\endnode