Using the Functional Graphics Tool with DrScheme

• The images can't be copied and pasted on some platforms.
• The images can't be saved out to a file and then loaded back in.

We have an alternative implementation of the functional graphics package for DrScheme that works around these problems. However, it incurs some disadvantages of its own:

• This version is a DrScheme "Tool" rather than "Library," which means it needs to be installed within the DrScheme directory (or folder) itself, rather than being loadable from anywhere. Also, once installed, you have no choice about loading it (short of de-installing it), unlike a library which can be selectively used.
• Furthermore, this Tool version less likely to work in DrScheme releases other than 53 than the Library version is.
• Finally, there is one slight incompatibility with the library version; instead of there being a name default-image-size, there are two procedures, (get-default-image-size) and (set-default-image-size! new-value).

If, having considered this tradeoff, you still consider it worth using the tool version, read on for a description of how to install the tool. Please note that once you have installed this tool, you should not use the fungraph.ss library, nor the concabs.ss library, since they duplicate the same functionality. Instead, the only one of our libraries you should still use is the oops.ss library, for the object-oriented programming system.

You will need to make a sub-directory (or folder) of plt/collects/drscheme/tools (or plt\collects\drscheme\tools or whatever) called fungraph. Then you can download into that plt/collects/drscheme/tools/fungraph directory the unit.ss file. (Note that it must be named unit.ss for the tool to work.)

Now if you start up DrScheme, it will automatically load in this tool as it starts up.