INPUT CLIP
Text Texture Clip: an input image used to control the size of the output characters
and, optionally, their color. The input image can also be revealed through the characters
drawn in the output image.
TIME EDITOR CONTROLS
SIZE
Base (Min: 3.0 Max: 50.0 Default: 20.0)
The height of a capital letter in pixels.
Black (Min: 0.01 Max: 50.0 Default: 0.01)
Scaling factor applied to the base size for black regions of the input image.
White (Min: 0.01 Max: 50.0 Default: 3.0)
Scaling factor applied to the base size for white regions of the input image. Output
character sizes will range from Black Scale times Base Size to White
Scale times Base Size pixels.
Line Spacing (Min: 0.1 Max: 10.0 Default: 1.5)
Distance between lines in multiples of Base Size.
EMBOSS
Angle (Min: 0.0 Max: 360.0 Default: 0.0)
The angle from which embossed text is lit measured widdershins in degrees from zero at due
East.
Depth (Min: 0.0 Max: 10.0 Default: 1.0)
Depth to which the text is embossed. The higher the value, the greater the embossing
strength.
RENDERING
Anti Aliasing Samples (Min: 1 Max: 5 Default: 4)
Oversampling factor to use when rendering. Setting this to 4 or 5 is recommended, as Jaws
isn't significantly slower doing good anti-aliasing than not (in most cases).
FOREGROUND COLOUR
Red/Green/Blue (Default: white)
Depending on the style of image requred the is the colour used for the text.
Bright (Min: 0.0 Max: 3.0 Default: 1.0)
In Lift mode, maximum scaling of the input image luminance inside a character.
BACKROUND COLOUR
Red/Green/Blue (Default: white)
Depending on the style of image requred the is the colour used for what
is behind the text.
Bright (Min: 0.0 Max: 1.0 Default: 0.3)
In Lift mode, minimum scaling of the input image luminance outside a character.
REGION TO RENDER - BOX
Only the area within the defined rectangle will be used for rendering characters.
X1/Y1 X2/Y2 (Default: the complete image)
Only the area within this rectangle will be used for rendering characters.
PI CONTROLS
message
Your message. Characters from this message are used, cycling
as needed, to fill the output image.
invert image (Default: Off)
On: reverses the luminance of the input image for the purposes of
determining character scaling.
APPEARANCE
plain/cols on plain/plain on cols/lift/emboss/emboss plain (Default: plain)
Select the rendering style.
plain: draws the characters as constant foreground color shapes on the background
color.
cols on plain: the input image is revealed through the shapes of the characters.
Outside the characters, the background color is used.
plain on cols: the input image is revealed through areas outside the shapes of the
characters. The insides of the characters are colored with the foreground color.
lift: the brightness of the input images is increased inside the characters and
decreased outside. See Foreground Brigh and Background Bright.
emboss: the characters are used to emboss the input image.
emboss plain: the characters are used to emboss a plain grey image.
Font List
A scrolling lists displays the fonts available to draw characters in.
All characters are drawn in the same font. The entries in this list are
the names of files found in the directory /usr/local/jaws/fonts when Typo
is loaded. These should contain Unix format Adobe Type 1 font definitions as
discussed below.
About Fonts
In order to render text correctly, Jaws must have access to the fonts used when the
document was created. This means these fonts must be present on the machine running DL
FFFI. If the required font is not available when an item of text is rendered, it will be
drawn using the Helvetica font, and it is very likely that the character spacing
will be totally wrong.
Jaws uses fonts in Adobe Type 1 format stored in the directory:
/usr/local/jaws/fonts
Typo comes with 67 Type 1 fonts. You can add other fonts to
/usr/local/jaws/fonts at any time. They must, however, be in Unix Adobe Type 1 format.
Type 1 fonts are often supplied in Macintosh or PC format rather than Unix format.
Two very simple command line programs are supplied that convert Macintosh and PC Type 1 fonts to Unix format. These are called mac2ps and pc2ps respectively. To use them, you must transfer the font file to convert from your Macintosh or PC to your SGI machine using some method, which does not corrupt the contents (e.g. use binary mode FTP rather than ASCII mode). Unfortunately, we cannot advise you on the specifics of transferring data between PC's and (especially!) Macintoshes and SGI machines.
As an example, to convert a Type 1 font file from a PC environment, containing the
Times-Roman font and called "TIB_____.PFB", you would use:
pc2ps TIB_____.PFB
This will create a file in the current directory which is the name of the font contained in the font definition. In this case, the file will be called "Times-Roman". You then copy this file to /usr/local/jaws/fonts, and Times-Roman will then be available. (Times-Roman is, of course, one of the fonts supplied with Typo, but you get the idea...).
pc2ps and mac2ps are installed in the /usr/local/jaws/bin directory, so you will need to have this in your PATH, or type the full name to run these programs.
Please note that FONTS ARE COPYRIGHT. We cannot supply any fonts other than those that come with Jaws (and hence with Typo). Please respect the licensing agreements of other font suppliers.