Omni Systems, Inc. Mif2Go User's Guide, Version 55
> 31 Working with graphics > 31.5 Controlling image appearance in RTF output > 31.5.1 Rescaling bitmap graphics
You can rescale bitmaps using the [Graphics]
BitmapDPI
setting, either all at once or individually.
A setting of BitmapDPI=0
preserves
the scaling used in FrameMaker; this is usually best when producing RTF
for use in Word.
If you are concerned with screenshots for WinHelp,
though, any text in the bitmap is likely to be unreadable if you scale
it down at all. Instead, use BitmapDPI=96
to make the screenshot appear at its full original size.
If that is too big, you must make a different version of the bitmap for
WinHelp, rescaling it with a graphics program that actually “resamples”
it, instead of just dropping rows and columns the way WinHelp does when
it rescales.
Normally, Mif2Go sets the StretchMode
,
which specifies what method is to be used later when other applications
rescale the .wmf
bitmaps, according to the
type of bitmap present. For color bitmaps, Mif2Go specifies mode 3, which means to drop the eliminated
lines without altering their neighbors. For monochrome, Mif2Go specifies mode 2, which preserves black detail
by ORing the bits in the adjacent lines; you can also set mode 1, which
keeps white detail by ANDing the bits.
When Mif2Go wraps external WMFs in generated WMFs, so that
they are scaled correctly, the fill properties for the objects drawn
are determined by the brush in effect. If everything turns black, it
may be that the maker of the original WMF assumed a different default
brush from the one Mif2Go assumes. You can try other possible starting
values for the brush (White
and Hollow
)
to see if that improves the appearance of the graphic:
; DefBrushType = Black (default), White, or Hollow