The VXL Project

There's only an instantiation for vgl_line_2d_regression<double>, so if you are using e.g. vgl_line_2d_regression<float> you'll have to instantiate.
Just copy core/vgl/algo/Templates/vgl_line_2d_regression+double-.cxx to core/vgl/algo/Templates/vgl_line_2d_regression+float-.cxx, change "double" by "float" inside the file, then re-run CMake and make.

Alternatively replace #include <vgl/algo/vgl_line_2d_regression.h> by #include <vgl/algo/vgl_line_2d_regression.txx> in your application.

--	Peter.

--- Den tis 2010-03-23 skrev Adri Vernetta <adrivernetta@...>:

Från: Adri Vernetta <adrivernetta@...>
Ämne: [Vxl-users] vgl_line_2d_regression issue
Till: "Vxl-Users" <vxl-users@...>
Datum: tisdag 23 mars 2010 10.19

Hello,

I'm trying to use the vgl_line_2d_regression class but when linking it doesn't find the references relating to it.

I'm including the libvgl and libvgl_algo to the Libs (and with all the libvil references it works).


Is vgl_line_2d_regression not anymore inside libvgl_algo?

Thanks!


















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Great!

I suppose this happens in other cases too, because I have now undefined
references for other classes like vnl_vector. I will see what is better for
me to correct it (getting everything to double or instantiate everything).

Thanks!

2010/3/23 Peter Vanroose <peter_vanroose@...>

> There's only an instantiation for vgl_line_2d_regression<double>, so if you
> are using e.g. vgl_line_2d_regression<float> you'll have to instantiate.
> Just copy core/vgl/algo/Templates/vgl_line_2d_regression+double-.cxx to
> core/vgl/algo/Templates/vgl_line_2d_regression+float-.cxx, change "double"
> by "float" inside the file, then re-run CMake and make.
>
> Alternatively replace #include <vgl/algo/vgl_line_2d_regression.h> by
> #include <vgl/algo/vgl_line_2d_regression.txx> in your application.
>
> -- Peter.
>
> --- Den *tis 2010-03-23 skrev Adri Vernetta <adrivernetta@...>*:
>
>
> Från: Adri Vernetta <adrivernetta@...>
> Ämne: [Vxl-users] vgl_line_2d_regression issue
> Till: "Vxl-Users" <vxl-users@...>
> Datum: tisdag 23 mars 2010 10.19
>
>
> Hello,
>
> I'm trying to use the vgl_line_2d_regression class but when linking it
> doesn't find the references relating to it.
>
> I'm including the libvgl and libvgl_algo to the Libs (and with all the
> libvil references it works).
>
> Is vgl_line_2d_regression not anymore inside libvgl_algo?
>
> Thanks!
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> __________________________________________________
> Använder du Yahoo!?
> Är du trött på spam? Yahoo! E-post har det bästa spamskyddet som finns
> http://se.mail.yahoo.com
>

The problems with vnl_vector and so were for not including libvnl, however I
still have problems with vnl_symmetric_eigensystem (which I don't use
directly).

Is that an instantiation problem too?

Thanks!

2010/3/23 Adri Vernetta <adrivernetta@...>

> Great!
>
> I suppose this happens in other cases too, because I have now undefined
> references for other classes like vnl_vector. I will see what is better for
> me to correct it (getting everything to double or instantiate everything).
>
> Thanks!
>
> 2010/3/23 Peter Vanroose <peter_vanroose@...>
>
>  There's only an instantiation for vgl_line_2d_regression<double>, so if
>> you are using e.g. vgl_line_2d_regression<float> you'll have to instantiate.
>> Just copy core/vgl/algo/Templates/vgl_line_2d_regression+double-.cxx to
>> core/vgl/algo/Templates/vgl_line_2d_regression+float-.cxx, change "double"
>> by "float" inside the file, then re-run CMake and make.
>>
>> Alternatively replace #include <vgl/algo/vgl_line_2d_regression.h> by
>> #include <vgl/algo/vgl_line_2d_regression.txx> in your application.
>>
>> -- Peter.
>>
>> --- Den *tis 2010-03-23 skrev Adri Vernetta <adrivernetta@...>*:
>>
>>
>> Från: Adri Vernetta <adrivernetta@...>
>> Ämne: [Vxl-users] vgl_line_2d_regression issue
>> Till: "Vxl-Users" <vxl-users@...>
>> Datum: tisdag 23 mars 2010 10.19
>>
>>
>> Hello,
>>
>> I'm trying to use the vgl_line_2d_regression class but when linking it
>> doesn't find the references relating to it.
>>
>> I'm including the libvgl and libvgl_algo to the Libs (and with all the
>> libvil references it works).
>>
>> Is vgl_line_2d_regression not anymore inside libvgl_algo?
>>
>> Thanks!
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> __________________________________________________
>> Använder du Yahoo!?
>> Är du trött på spam? Yahoo! E-post har det bästa spamskyddet som finns
>> http://se.mail.yahoo.com
>>
>
>

> I still have problems with vnl_symmetric_eigensystem (which I don't use directly).
> Is that an instantiation problem too?

I suppose not. The source file vnl/algo/vnl_symmetric_eigensystem.cxx has explicit instantiations for <double> and <float>.
Maybe you don't link with the vnl_algo library?

--      Peter.












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The fact is I'm using unsigned ints.

And yes, I am linking vnl_algo

2010/3/23 Peter Vanroose <peter_vanroose@...>

> > I still have problems with vnl_symmetric_eigensystem (which I don't use
> directly).
> > Is that an instantiation problem too?
>
> I suppose not. The source file vnl/algo/vnl_symmetric_eigensystem.cxx has
> explicit instantiations for <double> and <float>.
> Maybe you don't link with the vnl_algo library?
>
> --      Peter.
>
>
>
>
>
>
>
>
>
>
>
> __________________________________________________
> Använder du Yahoo!?
> Är du trött på spam? Yahoo! E-post har det bästa spamskyddet som finns
> http://se.mail.yahoo.com
>

> The fact is I'm using unsigned ints.

In that case you'll have to add a line at the bottom of vnl/algo/vnl_symmetric_eigensystem.cxx
(This file should actually be renamed to .txx, and the instantiations placed in Templates/*.cxx as for all other templated classes... I'll do that in the near future.)

--      Peter.









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