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 compatible with this version. (I didn't know how to set the pen width.) (Feb. 20, 1990: I've been told this works. Still haven't been told 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 firstname.lastname@example.org (Internet address) USMAIL Tony Richardson Tony Richardson Dept of Elect Eng 311 S. LaSalle St. #41B Duke University Durham, NC 27705 Durham, NC 27706 ph 919-660-5262 ph 919-286-7101
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Marcel Waldvogel and Netfuture.ch.