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-
-
- ImageFX(tm) GROB Saver Module
- Version 1.03
-
-
- Written by Greg Simon
- 11/16/93
-
- ****************
- ** DISCLAIMER **
- ****************
-
- The author does not and cannot take any responsibility for the use or
- misuse of this program. Use it at your own risk. This program is
- here-by placed into the public domain.
-
-
- WHAT IS IT?
-
- 'GROB File' is a saver module for GVP's ImageFX Image Processing package.
- It allows you to save an image in Hewlett Packard's GROB (GRaphical OBject)
- format, suitable to be downloaded into any of Hewlett Packard's HP48-series
- calculators. If you don't own an HP48(s,sx,g,gx) this program won't do
- anything useful for you.
-
-
- INSTALLATION
-
- Assuming you already unpacked the archive :) copy the GROBFILE module to
- your ImageFX modules savers directory:
-
- > copy GROBFILE ImageFX:modules/savers
-
- (Assuming that your system has the ImageFX 'assign' installed, most do.)
-
- That's it! Next time you run ImageFX, you will see a new entry in the
- Save (24bit) image requester called "GROB FIle".
-
-
- WHAT IT DOES
-
- The saver module is very simple, it looks at the colors of each pixel
- element (red, green, and blue), and if they are all < 125, a pixel is
- created (remember, the HP48 has an on/off LCD screen). Thus, if you load
- your favorite 256-color .gif image and save it as a GROB, it will appear
- very strange and dull on your HP48 screen.
-
- The GROB saver module writes the GROB image out (in ASCII), and also writes
- some code around the image to view it. Thus, you can simply save the
- image, and go DIRECTLY to your terminal program and download the saved file
- to the HP48 for viewing.
-
- The HP48's screen size is 131 x 64 (yes, 131 pixels across), however this
- is not a limit for the GROB saver program.
-
-
- WHAT IS IT USED FOR?
-
- I wrote this program in a hurry to store diagrams for some tests I have
- next week :) (I really think you should be able to use your notes/book for
- engineering "design" exams...but don't get me started :-| ...)
-
- I've included a sample program which displays a converted logo of our
- favorite computer, converted with ImageFX / GROB saver.
-
-
- TIPS
-
- DeluxePaint or Brilliance work very nicely to create the images (you can
- cut a brush of 131x64 out and save it for loading into ImageFX);
- Brilliance is especially nice for it's grid-pixel zoom mode.
-
-
- FUTURE ENHANCEMENTS
-
- When I have some time, I plan on adding gray-scale encoding, where the
- program (saver module) writes out a series of grobs (function of the
- number of bitplanes) and then plays them back in rapid order on the
- calculator for a psuedo-gray-scale effect. This is not a new idea, but I'm
- yet to see ANYTHING for Amiga users, or even IBM users (for creating
- gray-scaled images, that is.)
-
- I don't plan on writing an iff->GROB program which is stand-alone, since
- I'd be going through ImageFX anyway. Besides, the author of ImageFX,
- Thomas Krehbiel, was kind enough to provide Amiga USERS with a
- development disk. (Thanks, Thomas!)
-
- If I receive enough requests to write an iff2grob, I'll do it.
-
-
-
-
- Send flames, comments, ideas, A4000's, to:
-
- Greg Simon
- 2 Kingswoods Drive
- New Hope, PA 18938 (215) 862-3339
-
- Internet: grs124@psuvm.psu.edu
-
- IRC: _Greg
-
-