Opened up Magnetometer and Orientation in Android
lazarus / 43-Android

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stab · 2013-08-10 08:48

Hi all,

Opened up magnetometer and orientation in android.
Attched is the code I've added to some files.
Have also sent a message to Felipemdc so he can make a
proper addition to his code.

Am struggling to use this to make a compass using azimuth,
pitch and roll to adjust magnetic field readings.

Found code for rotation with quaternions but haven't got it to
work yet.

Regards
stab

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felipemdc · 2013-08-14 06:11

Thanks, but:

1> Could you send a patch instead of files? Instructions to create a
patch are here: http://wiki.freepascal.org/Creating_A_Patch

2> Could you open a bug tracker item and attach the patch to it and
assign to me? It is better to have patches in the bug tracker instead
of in the forum.

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stab · 2013-08-14 17:27

Hi,

Run in to problems with make trying to follow the instrux in
http://wiki.freepascal.org/Creating_A_Patch

Downloaded Lazarus SVN development version through:
1. svn co http://svn.freepascal.org/svn/lazarus/trunk lazarus - OK

2. svn update - OK

3. make - Error
Compiling codetoolsfpcmsgs.pas
Compiling unitdictionary.pas
Compiling ctloadlaz.pas
Compiling ctunitgroupgraph.pas
119236 lines compiled, 3.9 sec
C:/lazarus/lazarus1.1/fpc/2.7.1/bin/i386-win32/cp.exe -f
Makefile.compiled units/i386-win32/CodeTools.compiled
make[1]: Leaving directory
`C:/lazarus/patch/lazarus/components/codetools'
make -C lcl LCL_PLATFORM=nogui
make[1]: Entering directory `C:/lazarus/patch/lazarus/lcl'
C:/lazarus/lazarus1.1/fpc/2.7.1/bin/i386-win32/rm.exe -f
units/i386-win32/alllclunits.ppu
C:/lazarus/lazarus1.1/fpc/2.7.1/bin/i386-win32/gmkdir.exe -p
units/i386-win32
C:/lazarus/lazarus1.1/fpc/2.7.1/bin/i386-win32/ppc386.exe -gl 
-Fu../packager/units/i386-win32
-Fu../components/lazutils/lib/i386-win32 -Fu. -Fuforms -Fuwidgetset
-Fiinclude -FE. -
FUunits/i386-win32 -di386 alllclunits.pp
Free Pascal Compiler version 2.7.1 [2012/11/22] for i386
Copyright (c) 1993-2012 by Florian Klaempfl and others
Target OS: Win32 for i386
Compiling alllclunits.pp
Compiling barchart.pp
Compiling lclproc.pas
lcl_defines.inc(8,4) Error: Illegal optimization specified
"NOREMOVEEMPTYPROCS"
Compiling fpcadds.pas
fpcadds.pas(37,1) Fatal: There were 1 errors compiling module,
stopping
Fatal: Compilation aborted
make[1]: *** [alllclunits.ppu] Error 1
make[1]: Leaving directory `C:/lazarus/patch/lazarus/lcl'
make: *** [lazbuild] Error 2

Can you help out?

Regards
stab

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Leledumbo · 2013-08-15 13:33

I believe you'll need newer FPC (2012/11/22 is nearly 9 months old).
2.6.2 should be supported, trunk is not always but I seldom get a
problem with it.

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BigChimp · 2013-08-15 13:49

What Leledumbo said. Laz trunk should compile with stable FPC (2.6.2
right now) as well as with FPC trunk though.