QFract: A Qt-based fractal viewer

Source code is now available at GitHub.

Notice: I put all the plugins I have made. Some of them might be useless, and some of them are not compiled automatically from the source by simply execute make. Edit plugins/Makefile, or modify and use make.sh in the plugin directory to compile them. Some might even require additional file to compile.

• 20230109 version (with Qt 6)
  • Mac OS X universal binary (for Intel and M1 Mac)
  • Mac OS X arm64 binary (works on M1 Mac)
  • Windows binary
• Screenshot (older version)
• 20140826 version for Qt 5 (5.3?)
  • Mac OS X (10.7 or later)
  • source
• 20110725_2 version (Windows version only) for Qt 4.5
  • Windows
  • source
• 20110725 version
  • Windows
  • Mac OS X (probably 10.6 or later, only for Intel Macs)
  • source
• 20090901 version
  • Windows
  • Mac OS X (10.4 or later, universal binary)
  • source
• 20090828 version
  • source
• 20090806 version
  • Windows
  • Mac OS X (10.4 or later, universal binary)
  • source
  • README
  • README (in Japanese)
• 20010723 version (for Qt 3)

Change Log

• (for 20110725_1 version) Add "-ffsat-math" option for Windows MinGW compiler (unless some plugins work so slowly).
• Now QFract uses Boost::thread to threading. Default is 4 threads. You need to rebuild to change the number of threads. Because of some difficulties to calculate progress during long calculation, progress is not shown any more.
• Including all plugins I have ever made (not appear in the list). (I do not remember some of them... Read the source to see what each plugin calculate.)
• Mac binary can open png files. (Indeed, the applescript bundle contains the "real" qfract application bundle inside.)
• New colormaps: default-NTSC.map and defaupt-HDTV.map. They are grayscale version of default.map. In the source coe, there are scripts (NTSC.sh and HDTV.sh) converting colormaps to grayscale.

• New plugins: cubicsuperray, cubicsuperrayjulia.
• cubicsuperper2ray plugin has changed not to divide by the natural involution.
• If you would like to open PNG files created by QFract by double-clicking them in Mac OS X, use this applescript. (You need to modify the path of qfract by Script Editor.)

• Open PNG file in new window.
• Open PNG files in command-line: qfract file1.png [file2.png ...]
• Precise new window size (640x640, 320x320, etc.).

• Minor bug correction: colormap and function plugins could not be opened via file open dialog for Windows. No difference for other environment from 09/08/04 version.

• Now QFract is for Qt 4.5. Also added many functionalities.
• QFract can run natively under Windows and Mac! Static link binaries are distributed.
• Load saved PNG image (saved by QFract itself).
• Print drawn images.
• Added new load function plugin dialog. You can choose function plugins from a list of plugins with some descriptions.
• Short description for parameters.
• Default colormap for each plugin.
• A bit faster drawing loop than before.
• A lot of plugins.
• Rough I18N support. Japanese resources are added. (To add other language resources, you need to edit main.cpp.)

• Don't redraw when the max iteration times for forward orbits is changed.
• Add plugins for degree 2 rational maps with period 2 superattracting orbit.

• Add plugins for quadratic maps with period 2 and 3 external rays.

• Add a plugin for real biquadratic maps with stretching rays.
• Add plugins for polynomials of type E_2 and E_3. (a polynomial of type E_q can be written as P(z)=cz(1-z/q)^q.)

• Add a plugin for real cubic maps with stretching rays.

• Add PLUGIN.jp(how to create plugins).
• Add plugins for real cubic maps.
• Add plugins/make.sh (script for compiling plugins). See also makeplugin.sh.

• Add tricorn and tricornjulia plugins.
• Add INSTALL.jp document.

• Initial point of a forward orbit can be different from the mouse pointer. See Point init(Point, int, double) in plugins.
• Add the plugins for biquadratic maps and degree 2 rational maps with a period 3 superattracting cycle.
• Colormap is inherited from the parent window.
• Add colormaps.
• Add scripts to make new colormaps for period 2 and 3.

• First release.

Inou Hiroyuki <inou+www3 at math dot kyoto-u dot ac dot jp>