Hi, I really like your program...I have just downloded and started using it. I haven't had anything wrong with it...except, I do have one question. How do you get the Julia View back. It's checked on the "view menu", but doesn't appear on my screen in live view to the right.

I accidentally pushed the "exit button" on it and it has been gone ever since. I have been trying to figure out how to get it back, but nothing I do seems to work. Julia view is even checked under the view menu on the title, but doesn't appear on my screen.

Could you please help?

Thank You!

P.S. You program is really nice

Hi,

fraqtive 0.4.0 reproducably crashes when continuously zooming into complex regions. System is FreeBSD 7.0 with Qt 4.3.4. Here is a backtrace:

markus@cheops:/usr/ports/graphics/fraqtive/work/fraqtive-0.4.0/release # gdb ./fraqtive
GNU gdb 6.1.1 [FreeBSD]
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GDB is free software, covered by the GNU General Public License, and you are
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This GDB was configured as "amd64-marcel-freebsd"...
(gdb) r
Starting program: /usr/ports/graphics/fraqtive/work/fraqtive-0.4.0/release/fraqtive
[New LWP 100171]
[New Thread 0x803501120 (LWP 100171)]
[New Thread 0x803501290 (LWP 100203)]
[New Thread 0x803501400 (LWP 100204)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x803501120 (LWP 100171)]
0x0000000000415487 in DataFunctions::drawImage (image=@0x8035ed580, data=0x8035190f0, region=@0x7fffffffde30, mapper=@0x7fffffffddc0, antiAliasing=Variable "antiAliasing" is not available.
) at datafunctions.cpp:260
260 color[ i ][ 1 ] = mapper.map( src[ i * stride ] );
(gdb) bt
#0 0x0000000000415487 in DataFunctions::drawImage (image=@0x8035ed580, data=0x8035190f0, region=@0x7fffffffde30, mapper=@0x7fffffffddc0, antiAliasing=Variable "antiAliasing" is not available.
) at datafunctions.cpp:260
#1 0x000000000042ab30 in ImageView::drawImage (this=0x8035ed540, data=0x8035190f0, region=@0x7fffffffde30) at imageview.cpp:142
#2 0x000000000042aff8 in ImageView::partialUpdate (this=0x8035ed540, data=0x8035190f0) at imageview.cpp:119
#3 0x000000000041eb3f in FractalPresenter::customEvent (this=0x8035190c0, e=Variable "e" is not available.
) at fractalpresenter.cpp:202
#4 0x0000000801fad221 in QObject::event (this=0x8035190c0, e=Variable "e" is not available.
) at kernel/qobject.cpp:1165
#5 0x00000008008c0f1e in QApplicationPrivate::notify_helper (this=0x80350e140, receiver=0x8035190c0, e=0x8036010a0) at kernel/qapplication.cpp:3563
#6 0x00000008008c6ef8 in QApplication::notify (this=0x7fffffffe6f0, receiver=0x8035190c0, e=0x8036010a0) at kernel/qapplication.cpp:3122
#7 0x0000000801f9f6a0 in QCoreApplication::notifyInternal (this=0x7fffffffe6f0, receiver=0x8035190c0, event=0x8036010a0) at kernel/qcoreapplication.cpp:537
#8 0x0000000801fa07f5 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x803513080) at qcoreapplication.h:207
#9 0x0000000801fa09d5 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=-1) at kernel/qcoreapplication.cpp:1009
#10 0x0000000801fbebef in postEventSourceDispatch (s=Variable "s" is not available.
) at kernel/qeventdispatcher_glib.cpp:214
#11 0x000000080237c874 in g_main_context_dispatch () from /usr/local/lib/libglib-2.0.so.0
#12 0x000000080237fb2d in g_main_context_check () from /usr/local/lib/libglib-2.0.so.0
#13 0x000000080237ffee in g_main_context_iteration () from /usr/local/lib/libglib-2.0.so.0
#14 0x0000000801fbf17e in QEventDispatcherGlib::processEvents (this=0x803516090, flags=@0x7fffffffe5f0) at kernel/qeventdispatcher_glib.cpp:345
#15 0x000000080092f70f in QGuiEventDispatcherGlib::processEvents (this=Variable "this" is not available.
) at kernel/qguieventdispatcher_glib.cpp:198
#16 0x0000000801f9ecd3 in QEventLoop::processEvents (this=Variable "this" is not available.
) at kernel/qeventloop.cpp:147
#17 0x0000000801f9ee08 in QEventLoop::exec (this=0x7fffffffe690, flags=@0x7fffffffe6a0) at kernel/qeventloop.cpp:189
#18 0x0000000801fa0ac2 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:766
#19 0x00000008008c0638 in QApplication::exec () at kernel/qapplication.cpp:3060
#20 0x000000000042dbe3 in main (argc=1, argv=Variable "argv" is not available.
) at main.cpp:16
(gdb)

Markus

Hi, the instant zoom by scaling up the existing image is nice but it gets blurrier until you let go of the mouse button and the image is recalculated.

Shouldn't Fraqtive keep recalculating the image on the fly as you zoom? Similarly it would be nice to pan around with the middle mouse button rather than moving a short way and letting go to see the new area displayed.

AMAZINGly fun fractal generation, and fast....
on a 64bit nocona, zooming quickly with the mouse scroll button results in segmentation fault while left/right button zooming never does.
(scrolling does work as long as you only scroll 1/refresh
Also, this is a Dual cpu, QT-4.3.2-r1

Program received signal SIGSEGV, Segmentation fault.
0x000000000041f9c7 in DataFunctions::drawImage (image=@0x6f2000, data=0x6ea550, region=@0x7fff7245b0f0,
mapper=@0x7fff7245b050, antiAliasing=) at datafunctions.cpp:260
260 color[ i ][ 1 ] = mapper.map( src[ i * stride ] );
(gdb) next

Program terminated with signal SIGSEGV, Segmentation fault.
The program no longer exists.

(gdb) run
Starting program: /home/user/fractive/fraqtive-0.4.0/release/fraqtive

Program received signal SIGSEGV, Segmentation fault.
0x000000000041f9c7 in DataFunctions::drawImage (image=@0x6f8e50, data=0x6f1780, region=@0x7fffad1e2e80,
mapper=@0x7fffad1e2de0, antiAliasing=) at datafunctions.cpp:260
260 color[ i ][ 1 ] = mapper.map( src[ i * stride ] );

i might build the newest qt-4.3 with debugging to see if it adds anything else

Will develop some options for

1- change fractal formula of the image, not only the classic z= z² + c ?
2- change iteration colours, for internal and external part of the fractal image?

Regards,

Marcelo Anelli
mac@marceloanelli.com