+ New Features:
+
+ -- ctsim: Added direct Fourier reconstructions (Thanks to
+ Edgar Angeles for help with understanding FFT symmetry of
+ the projections)
+
+ -- ctsim: Added tips to be displayed at startup and via the help menu.
+ -- ctsim: Added center-detector concept. Allow for detector array
+ to be any arbitrary distance from center of scanner. As a result,
+ projection files are not incompatible with previous version of
+ CTSim.
+ -- ctsim: Added background and SMP processing for reconstructions,
+ scanning, and rasterization.
+ -- ctsim: Added generic threaded tasks and background manager for
+ background processing as well as taking advantage of multiple-CPU's
+ on SMP systems.
+ -- ctsim: Added plot t-theta sampling to projection file menu.
+ -- ctsim: Added Reconstruction with Rebinning for faster
+ divergent beam reconstructions.
+ -- ctsim: Added import and export of DICOM image files.
+ -- ctsim: Added PPM, PGM, and PNG file import to imagefile.
+ -- ctsim: Added FFT/IFFT of columns of image files.
+ -- ctsim: Added clipboard cut/copy/paste for image files.
+ -- ctsim: Added region of interest to reconstructions.
+ -- ctsim: Added Convert Rectangular Image to Projection files
+ -- ctsim: Added "Verbose Logging", "Startup Tips", and
+ "Background processes" options to Preferences dialog.
+ -- ctsim: Added plotting of projection file histograms.
+ -- plotfile: Added scattergram plot functions
+ -- ctsim: Added accelerator key for File-Properties
+ -- ctsim: Improved wireframe 3-d display to remove hidden
+ surfaces.
+ -- views.cpp: Added out of memory checks to display for huge
+ image and projection files.
+ -- backprojectors.cpp: Added setting of axis extent and increment
+ to reconstructions.
+
+ Bug Fixes:
+ -- filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
+ -- imagefile.cpp: Fixed scaling factor in fftRows
+ -- imagefile.cpp: Fixed bug when performing magnitude() on real-valued
+ image.
+ -- sgp.cpp: Fixed bug in drawCircle.
+ -- distribution: fixed problem with documentation files not
+ being included with the distribution [Reported by Ian Kay].
+ -- sgp.cpp/ezplot.cpp: Improved plotting with markers.
+ -- fixed ctsimtext shell when giving no parameters to function-name
+ -- phm2if, phm2pj: Updated help messages for renamed phantoms
+
+3.0.3 - Released 2/20/01
+
+ * ctsim: Fixed core dump on Linux with OpenGL
+
+ * ctsim: Fixed context-sensitive help on Linux
+
+ * ctsim: Fixed About box on Linux
+
+3.0.2 - Released 2/20/01
+
+ * scanner.cpp: Fixed bug when number of detectors was even.
+
+ * ctsim: Improved error handling when trying to convert
+ divergent projections into polar form.
+
+3.0.1 - Released 2/19/01
+
+ * ctsim: Fixed dialog box for reconstruction so that
+ rotation angle setting will stay fixed in-between use
+ of the dialog box.
+
+ * syserror: Fixed display bug for trace messages
+
+ * ctsim: MSVC optimization bug work-around, compiler
+ options changed.
+
+3.0.0 - Released 2/19/01
+
+ * ctsim: Massive update/fix to online help and print manual.
+
+ * ctsim: Added context-sensitive help to dialog boxes
+
+ * ctsim: Reformated all dialog boxes, much nicer now.
+
+ * ctsim: Improved accelerator key handling
+
+ * global: Added Hanning filter.
+
+ * global: Improved default parameters to that all defaults give
+ sensible output.
+
+3.0.0beta1 - Released 2/11/01
+
+ * ctsim: Added most-recently-used files to File menu with
+ registry storage between executions.
+
+ * ctsim: Hides arcane features unless enabled by Preferences dialog
+
+ * ctsim: Added MDI interface for Windows version and made it default for Windows.
+
+ * ctsim: Added 3-D wireframe view of images (uses OpenGL)
+
+ * ctsim: Added graphical About box
+
+ * ctsim: Escape key now removes cursor lines from image file view
+
+ * ctsim: Added Revert to ImageFile menu
+
+ * ctsim: Added accelerator (hotkeys) to frames
+
+ * ctsim: Online help added!
+
+ * backprojector: Added cubic interpolation
+
+ * ctsim: Added icons to Frames on X-Window and MS Windows versions
+
+ * ctsim: Fixed tick-label placement for plots on projection and
+ reconstruction dialogs.
+
+ * timer.h: Add use of _ftime when compiling on MSVC
+
+ * global: Projection files are not compatible with previous version
+ due to new scanner definitions.
+
+ * global: deleted concept of field-of-view and added
+ view ratio and scan ratio concepts.