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- For a color requester I just use the palette program that comes with the
- WorkBench 1.3 enhancer package. PLPLOT looks for this program in TOOLS:
- and if it's not there it looks in sys:tools, so you'll program want
- to "assign" tools: to the directory in which the palette program resides.
-
- PLPLOT looks for the fonts in PLFONTS: so make sure it is "assign"ed
- too (put it in your startup sequence).
-
- About the Amiga drivers:
-
- ******
-
- IFF and Preferences
-
- Tom Rokicki (thanks!) provided the code for the iff and preferences
- drivers.
-
- The IFF driver will prompt for resolution, page size,
- filename and orientation unless plsetup() and plselect() are used.
-
- The preferences driver creates a black and white graph on your
- preferences supported printer. It uses the preferences selected
- density and page size limits and ignores most of the other stuff.
- If you have selected "ignore" in the page size limit options
- (see the 1.3 Enhancer manual) then a full page graph is produced.
- The other options operate as described in the Enhancer manual.
- Only "ignore" and "bounded" produce aspect ratio correct plots
- (usually unimportant unless x and y must have the same scaling
- like for pie charts or polar plots). You can get very high quality
- plots with this driver. A full page, high resolution plot
- requires a lot of memory though (An 8"x10" 300 dpi plot requires
- (8*300)*(10*300)/8 = 900000 bytes). You can use the page limits
- to reduce the memory requirements and still get high quality
- output.
-
- ******
-
- postscript
-
- The postscript driver was written by Sam Paolucci (thanks!) for
- the previous version. I don't have a ps printer and so was unable
- to upgrade the driver to be completely version compatible with this
- version. (I didn't know how to set the pen width.)
-
- ******
-
- Aegis Draw
-
- I created this one because I have Draw2000 and it was easy to do.
- I don't know how popular it is. It does provide a very nice
- method for touching up graphs.
-
- ******
-
- HP Plotter (or PLT: device)
-
- The plt: device is an HP plotter compatible device handler written by
- Jim Miller and Rich Champeaux. It is freely redistributable, but
- it is not included with this package (it's big enough already!).
- It gives high quality output like the preferences driver but with
- full preferences support. Usually requires less memory (for full
- page plots) than the preferences driver, but is slower. Highly
- recommended if you have a color printer or are memory strapped.
- I don't know exactly which model HP plotter this is compatible
- with (the HP7470 I think).
-
- *******
-
- Amiga window
-
- I've completely redone this driver. I hope you agree that it is much
- nicer. A normal window with standard intuition gadgets is now used.
- You can resize the window even while the program is plotting in the
- window (see the "Redraw Enabled" section below). If you are making
- several graphs on separate pages, use the close gadget to advance
- from one "page" to the next.
-
- "Plplot" menu selections:
-
- "Save Configuration"
- - Saves current window configuration (window size, screen type,
- screen depth, colors, resolution, etc.). The configuration
- is saved in s:Plplot.def (only 54 bytes).
-
- "Reset"
- - Resets the window to the configuration in s:Plplot.def
- (or to a default config if this file doesn't exist).
-
- "Maintain Plot Aspect"
- - If this is checked the plot aspect ratio is maintained as the
- window is resized (handy for polar plots, etc.). Default
- is unchecked in which case x and y are stretched
- independently to fit in the window.
-
- "Redraw Enabled"
- - If this is checked, then the graphics commands are buffered
- in t:plplot.dat. This file is used to redraw the plot when
- required. It's status is checked only when a new graph is
- started. The buffer is also used to create the "Full Page"
- prints under the "Print" selection.
-
- "Select Screen Type"
- - A submenu allows the user to select either "Workbench" or
- "Custom".
-
- "Print"
- - There are three submenu options here. The "Bitmap Dump"
- does just that (with full preferences support). The
- output is pretty jagged, but you can play around with
- the preferences stuff (scaling, smoothing, etc.) to
- improve things. The other two submenus are
- "Full Page (Landscape)" and "Full Page (Portrait)". This
- uses the graphics buffer file (see "Redraw Enabled" above)
- to create graphics output similar to the preferences
- driver. However the aspect ratio can not be maintained.
- Same preferences options are used as in preferences driver.
-
- "Save Bitmap as IFF File"
- - Self explanatory. You can use this to save your images and
- then touch them up (do area fills, etc.) with your favorite
- paint program.
-
- "Screen Format" selections: (This menu only appears on the custom screen)
- "Interlaced"
- "High Resolution"
- "Number of Colors"
- "Set Color Palette"
- - I think these are all self-explanatory. You can select either
- 2, 4, 8, or 16 colors.
-
-
- Tony Richardson
-
- EMAIL amr@dukee.egr.duke.edu
-
- USMAIL Tony Richardson Tony Richardson
- Dept of Elect Eng 311 S. LaSalle St. #41B
- Duke University Durham, NC 27705
- Durham, NC 27706
-
- ph 919-684-3123 ph 919-286-7101
-
-