Qt Based Programs
Qt is a product of
I started using Qt to port programs from the Macintosh to Unix and
Windows 95/NT that I use in the classes I teach. I looked for a long time for a
package/library that would let me support both Unix for our
public computing labs and allow
students to run the code at home. The following programs have been ported so
- Truss Solver: 2-D
Structural Analysis of Trusses.
- Xorient: X-Ray orientation
Gf Port to Qt
I have finally gotten to porting Gf, an almost WYSIWYG plotting package,
to Qt. It still works very similar to the X based version (Gfx) so see its doc pages for an intro to Gf. The
Qt port has several new features and of course some new bugs.
- Windows 95/98/NT version.
- Extended File format, all the color, line type and other format
information is saved in the file. The extended file format is backward
compatable with other versions of Gf. This extended file format also makes it
unnecessary to set the file format (called profile on previous versions) before
an extended format file is read.
- Improved delimited (space, tab or comma) file format support. Now you
can use the delimited file format and not lose any functionality.
- Cut, Copy and Paste of curve data, ASCII output to system clipboard
(tab delimited). Click on same point twice to select the whole curve.
- Multiple active Gf windows.
- Postscript output is the same as before, written by the application
and not thru any driver (to get very clean postscript output).
- Comments can be put at a location fixed by data values.
- Much nicer interface, which includes the normal browsable file
- Written in C++, the GfFile data class makes it easy to add Gf file
read/write support to an application. A Gf Qt widget also makes it easy in
include the graphics display in other applications.
- TeX like formatting and text font and size selections display
correctly on the screen.
- Direct Printing to any system printer (Windows) -- not as nice as
internally generated postscript saved to file.
- Data can be edited or entered using the Data item on the Edit
Changes from X-Windows version:
- Multiple curves on the screen now default to all black instead of
cycled colors. This is because the color of the curves on the screen now match
the PS output settings.
- Invec (see Gfx Man page Data format
section) values of 0 only start new curves. A number of symbol data
points together are treated as one curve.
- Ordering of linetypes and linewidths has been changed from that on
- Line types with dots have been removed (I never liked them). All but
one line type (long dashes) are WYSIWYG on the screen.
- Profile settings are split between the File Format and Plot Options
- Linear curve fit is now under "Selection Stats" on the Edit
- Data Transformations have "Undo."
- Direct printing under Windows and X11 is not as nice as Postscript
saved to a file. Windows is worse than X11 in this regard. Note that saving to
a file under Windows with direct printing is not supported (by Qt).
- Many no doubt, that's why its version 0.0.x! Please let me know if
you find one.
Changes for version 0.0.26
- Comment data positions now read back in from files.
Download of Current Version 0.0.26
GfQt is currently written for Qt version 1.44. On the SGI and Linux
platforms you must have the Qt Libraries installed. These are available from
Troll Tech's anonymous
ftp server. Most Linux
distributions have Qt available as a binary package. No libraries are required
for the Windows version.
I have also written a few other utilities in Qt and plan to port my
and Framex programs to Qt as well. The utilities so far are:
- ViewCd: Directory Viewer for Rockridge
CD's under Windows. Allows copies of files with correct (long) filenames, with
explorer like cut/paste interface (very crude).
- TextView: Unix text file viewer for Windows. Does Cr/Lf
- QtSplit: Splits large files up for transport on removable
media. Does a simple checksum to verify the joined result.
Source includes a Win95/NT
If you are interested in these programs send
me an e-mail if I have not already put
the source up on this page.