Platform-specific information for fv 3.0 for Mac OS The Windows and Mac OS versions of fv contain a number of "peculiarities" which are either due to limitations/bugs in the tcl/tk language or the Windows/Mac operating system. Here are a few we know about for Mac OS... * Dashed and dotted lines are not supported. These features are provided by the Tcl/Tk package which lacks this feature on Mac OS. * Low memory situations are not handled well. Tcl/Tk will abort if it runs out of memory. POW tries to test for this when displaying images and to avoid it, but we have not found a way which always catches this error. So be careful if plotting a large number of images, especially image animations (such as the datacube.fit sample file). An included AppleScript called "Set FITS type" can be used to set files' Creator/File Types so that they get opened by fv when double-clicked. Merely drag-n-drop the files to this script. To have your computer automatically recognize certain filename extensions as fv FITS files when moving files to your computer from PCs or downloading them from the internet, go to the "File Exchange" control panel. The "PC Exchange" pane will have a list of all the filename extensions it understands. Check if the extension ".fits" is already listed. If so, "Edit" it, otherwise hit the "Add" button and enter ".fits" in the appropriate box. From there select fv as the file's creator and "FITS" as its file type. Also, in the advanced panel, be sure that the file is flagged as being binary. Without this, the file could be treated as a text file when downloading and become corrupted. Repeat this for additional extensions you encounter for FITS files (eg, .mkf, .unf, .fit, .evt) To gain access to the Tcl console, hit Command-Option-0 (Zero). One of fv's windows must be open when doing this. Bug reports should be sent via the FTOOLS help desk http://heasarc.gsfc.nasa.gov/cgi-bin/ftoolshelp Visit the fv web site at http://heasarc.gsfc.nasa.gov/ftools/fv for a detailed description of fv's capabilities and to learn of updates and bug fixes.
Pages maintained by Bryan Irby Send bug reports or feature requests via the FTOOLS help desk.
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Last modified: Tuesday, 10-Feb-2004 09:44:55 EST