Re: [Pdl-general] PDL::Tranform issues

2022-10-19 Thread Ed . 
Hi Craig,

As noted just now in a separate message, the identity function isn’t going 
away. There was a long-standing (see https://perlmonks.org/?node_id=683514 – 
from 2008) bug in PDL::Transform which was fixed on the git version in 
https://github.com/PDLPorters/pdl/commit/ab5b39bd51d1e6761e6dd2f482cbcc7c68ab368a
 but has not yet been released. Ingo is not seeing the bug because he is using 
PDL from git. Paul is almost certainly using a CPAN version from 2008 or later.

I will be releasing PDL very soon which ought to fix this.

Best regards,
Ed

From: Craig DeForest<mailto:defor...@boulder.swri.edu>
Sent: 19 October 2022 15:54
To: Paul Goodall<mailto:paul.thomas.good...@gmail.com>
Cc: pdl-general@lists.sourceforge.net<mailto:pdl-general@lists.sourceforge.net>
Subject: Re: [Pdl-general] PDL::Tranform issues

Hi, Paul,

This looks like a linking error.  The t_linear constructor makes use of an 
identity matrix generator, which is (was?) exported into the loading module as 
part of PDL::MatrixOps (used to be part of the whole “use PDL” sequence).  That 
occurs on or around line 2796 of transform.pd, and again a few lines later 
(line 2811 in my copy).  It’s possible that with recent cleanup of the various 
libraries and export lists, “identity” is no longer being exported into the 
PDL::Transform::Linear package on load.  A good way to fix that would be to 
make sure that PDL::Transform::Linear explicitly uses PDL::MatrixOps and 
explicitly asks for identity() to be exported.

Cheers,
Craig



On Oct 18, 2022, at 9:09 PM, Paul Goodall 
mailto:paul.thomas.good...@gmail.com>> wrote:

Hi Ingo,

With or without the curly braces - it's the same for me.  Also - the error 
happens before the map stage, during the call to 't_linear'.

I will write a simple Bilinear Interpolation myself, I would have just 
preferred to use the in-built capability in 'PDL::Transform'.

---
pdl> use PDL::Transform;

pdl> $im = rfits "m51.fits"
Reading IMAGE data...
BITPIX =  -32  size = 262144 pixels
Reading  1048576  bytes
BSCALE = 1 &&  BZERO = 0

pdl> $tr = t_linear({rot=>30});
Undefined subroutine ::Transform::Linear::identity called at transform.pd 
line 2729.

pdl> $tr = t_linear(rot=>30);
Undefined subroutine ::Transform::Linear::identity called at transform.pd 
line 2729.
---

cheers,

Paul



On 18 Oct 2022, at 10:05 am, Ingo Schmid 
mailto:ingo...@gmx.at>> wrote:

Dear Paul,
first, I think you do not need the curly { } around rot.
Second, map needs $tr and $im. You can call it $tr->map($im) or $im->map($tr), 
as far as I know.
With these changes, it works for me.
use PDL;
#use PDL::IO::;
use PDL::Transform;
use PDL::Graphics::Gnuplot;

$im = rfits('/data/ingo/git/PDL/pdl-code/m51.fits');
$tr = t_linear({rot=>30});
print $Tr;
$im1 = $tr->map($im);
gplot {out=>'i1.png',term=>'png',},with=>'image',$im;
gplot {out=>'i2.png',term=>'png',},with=>'image',$im1;

Ingo
On 10/18/22 07:52, Paul Goodall wrote:
Hi perldl peeps,

I'm trying to do something that should be really simple, but it seems I'm 
falling over at the first hurdle.
I've replicated the error in it's simplest form from the example given in the 
docs as follows, and I've highlighted the offending line.


use PDL<https://metacpan.org/pod/PDL::Transform>;
use PDL::IO::Image<https://metacpan.org/pod/PDL::Transform>;
use PDL::Transform<https://metacpan.org/pod/PDL::Transform>;

$im = rfits('m51.fits');

$tr = t_linear({rot=>30});

$im1 = $tr->map($tr);

---
And I'm hit with this one:

> Undefined subroutine ::Transform::Linear::identity called at transform.pd 
> line 2729.

I'm using PDL v2.080 on Ubuntu 20.04 (focal).

This feels like it's something that has been solved a million times, but I 
can't seem to find the solution.  Am I looking at the wrong Docs or doing 
something obviously silly?

cheers,

Paul




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Re: [Pdl-general] PDL::Tranform issues

2022-10-19 Thread Craig DeForest 
Hi, Paul,

This looks like a linking error.  The t_linear constructor makes use of an 
identity matrix generator, which is (was?) exported into the loading module as 
part of PDL::MatrixOps (used to be part of the whole “use PDL” sequence).  That 
occurs on or around line 2796 of transform.pd, and again a few lines later 
(line 2811 in my copy).  It’s possible that with recent cleanup of the various 
libraries and export lists, “identity” is no longer being exported into the 
PDL::Transform::Linear package on load.  A good way to fix that would be to 
make sure that PDL::Transform::Linear explicitly uses PDL::MatrixOps and 
explicitly asks for identity() to be exported.

Cheers,
Craig


> On Oct 18, 2022, at 9:09 PM, Paul Goodall  
> wrote:
> 
> Hi Ingo,
> 
> With or without the curly braces - it's the same for me.  Also - the error 
> happens before the map stage, during the call to 't_linear'.
> 
> I will write a simple Bilinear Interpolation myself, I would have just 
> preferred to use the in-built capability in 'PDL::Transform'.
> 
> ---
> pdl> use PDL::Transform;  
>   
>  
>  
> pdl> $im = rfits "m51.fits"   
>   
>   
> Reading IMAGE data...
> BITPIX =  -32  size = 262144 pixels 
> Reading  1048576  bytes 
> BSCALE = 1 &&  BZERO = 0  
>  
> pdl> $tr = t_linear({rot=>30});   
>   
>   
> Undefined subroutine ::Transform::Linear::identity called at transform.pd 
> line 2729.
>  
> pdl> $tr = t_linear(rot=>30); 
>   
>   
> Undefined subroutine ::Transform::Linear::identity called at transform.pd 
> line 2729.
> ---
> 
> cheers,
> 
> Paul
> 
> 
>> On 18 Oct 2022, at 10:05 am, Ingo Schmid > > wrote:
>> 
>> Dear Paul,
>> 
>> first, I think you do not need the curly { } around rot. 
>> 
>> Second, map needs $tr and $im. You can call it $tr->map($im) or 
>> $im->map($tr), as far as I know.
>> 
>> With these changes, it works for me.
>> 
>> use PDL;
>> #use PDL::IO::;
>> use PDL::Transform;
>> use PDL::Graphics::Gnuplot;
>> 
>> $im = rfits('/data/ingo/git/PDL/pdl-code/m51.fits');
>> $tr = t_linear({rot=>30});
>> print $Tr;
>> $im1 = $tr->map($im);
>> gplot {out=>'i1.png',term=>'png',},with=>'image',$im;
>> gplot {out=>'i2.png',term=>'png',},with=>'image',$im1;
>> 
>> 
>> 
>> 
>> Ingo
>> 
>> On 10/18/22 07:52, Paul Goodall wrote:
>>> Hi perldl peeps,
>>> 
>>> I'm trying to do something that should be really simple, but it seems I'm 
>>> falling over at the first hurdle.
>>> I've replicated the error in it's simplest form from the example given in 
>>> the docs as follows, and I've highlighted the offending line.
>>> 
>>> 
>>> use PDL ;
>>> use PDL::IO::Image ;
>>> use PDL::Transform ;
>>> $im = rfits('m51.fits');
>>> $tr = t_linear({rot=>30});
>>> $im1 = $tr->map($tr); 
>>> ---
>>> And I'm hit with this one:
>>> 
>>> > Undefined subroutine ::Transform::Linear::identity called at 
>>> > transform.pd line 2729.
>>> 
>>> I'm using PDL v2.080 on Ubuntu 20.04 (focal).
>>> 
>>> This feels like it's something that has been solved a million times, but I 
>>> can't seem to find the solution.  Am I looking at the wrong Docs or doing 
>>> something obviously silly?
>>> 
>>> cheers,
>>> 
>>> Paul
>>> 
>>> 
>>> 
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>>> 
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Re: [Pdl-general] PDL::Tranform issues

2022-10-19 Thread Ingo Schmid 

PDL Commit 7219e10b0b835eaa0a0dde6225ac49f493efb1de v2.080

on debian/testing 64 bit.

perl 5.34.0

Ingo

On 10/19/2022 2:47 PM, Ed . wrote:


Paul and Ingo, could you please confirm which version of PDL you’re
each running?

Best regards,

Ed

*From: *Paul Goodall <mailto:paul.thomas.good...@gmail.com>
*Sent: *19 October 2022 04:09
*To: *Ingo Schmid <mailto:ingo...@gmx.at>
*Cc: *pdl-general@lists.sourceforge.net
*Subject: *Re: [Pdl-general] PDL::Tranform issues

Hi Ingo,

With or without the curly braces - it's the same for me.  Also - the
error happens before the map stage, during the call to 't_linear'.

I will write a simple Bilinear Interpolation myself, I would have just
preferred to use the in-built capability in 'PDL::Transform'.

---

pdl> use PDL::Transform;

pdl> $im = rfits "m51.fits"

Reading IMAGE data...

BITPIX =  -32  size = 262144 pixels

Reading  1048576  bytes

BSCALE = 1 &&  BZERO = 0

pdl> $tr = t_linear({rot=>30});

Undefined subroutine ::Transform::Linear::identity called at
transform.pd line 2729.

pdl> $tr = t_linear(rot=>30);

Undefined subroutine ::Transform::Linear::identity called at
transform.pd line 2729.

---

cheers,

Paul



On 18 Oct 2022, at 10:05 am, Ingo Schmid  wrote:

Dear Paul,

first, I think you do not need the curly { } around rot.

Second, map needs $tr and $im. You can call it $tr->map($im) or
$im->map($tr), as far as I know.

With these changes, it works for me.

use PDL;
#use PDL::IO::;
use PDL::Transform;
use PDL::Graphics::Gnuplot;

$im = rfits('/data/ingo/git/PDL/pdl-code/m51.fits');
$tr = t_linear({rot=>30});
print $Tr;
$im1 = $tr->map($im);
gplot {out=>'i1.png',term=>'png',},with=>'image',$im;
gplot {out=>'i2.png',term=>'png',},with=>'image',$im1;

Ingo

On 10/18/22 07:52, Paul Goodall wrote:

Hi perldl peeps,

I'm trying to do something that should be really simple, but
it seems I'm falling over at the first hurdle.

I've replicated the error in it's simplest form from the
example given in the docs as follows, and I've highlighted the
offending line.



|use| |PDL <https://metacpan.org/pod/PDL::Transform>;|

|use| |PDL::IO::Image <https://metacpan.org/pod/PDL::Transform>;|

|use| |PDL::Transform <https://metacpan.org/pod/PDL::Transform>;|

|$im|  |= rfits('m51.fits');|

|$tr||= t_linear({rot=>30});|

|$im1|  |= $tr->map($tr); |

---

And I'm hit with this one:

> Undefined subroutine ::Transform::Linear::identity called
at transform.pd line 2729.

I'm using PDL v2.080 on Ubuntu 20.04 (focal).

This feels like it's something that has been solved a million
times, but I can't seem to find the solution.  Am I looking at
the wrong Docs or doing something obviously silly?

cheers,

Paul




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Re: [Pdl-general] PDL::Tranform issues

2022-10-19 Thread Ed . 
Paul and Ingo, could you please confirm which version of PDL you’re each 
running?

Best regards,
Ed

From: Paul Goodall<mailto:paul.thomas.good...@gmail.com>
Sent: 19 October 2022 04:09
To: Ingo Schmid<mailto:ingo...@gmx.at>
Cc: pdl-general@lists.sourceforge.net<mailto:pdl-general@lists.sourceforge.net>
Subject: Re: [Pdl-general] PDL::Tranform issues

Hi Ingo,

With or without the curly braces - it's the same for me.  Also - the error 
happens before the map stage, during the call to 't_linear'.

I will write a simple Bilinear Interpolation myself, I would have just 
preferred to use the in-built capability in 'PDL::Transform'.

---
pdl> use PDL::Transform;

pdl> $im = rfits "m51.fits"
Reading IMAGE data...
BITPIX =  -32  size = 262144 pixels
Reading  1048576  bytes
BSCALE = 1 &&  BZERO = 0

pdl> $tr = t_linear({rot=>30});
Undefined subroutine ::Transform::Linear::identity called at transform.pd 
line 2729.

pdl> $tr = t_linear(rot=>30);
Undefined subroutine ::Transform::Linear::identity called at transform.pd 
line 2729.
---

cheers,

Paul



On 18 Oct 2022, at 10:05 am, Ingo Schmid 
mailto:ingo...@gmx.at>> wrote:

Dear Paul,
first, I think you do not need the curly { } around rot.
Second, map needs $tr and $im. You can call it $tr->map($im) or $im->map($tr), 
as far as I know.
With these changes, it works for me.
use PDL;
#use PDL::IO::;
use PDL::Transform;
use PDL::Graphics::Gnuplot;

$im = rfits('/data/ingo/git/PDL/pdl-code/m51.fits');
$tr = t_linear({rot=>30});
print $Tr;
$im1 = $tr->map($im);
gplot {out=>'i1.png',term=>'png',},with=>'image',$im;
gplot {out=>'i2.png',term=>'png',},with=>'image',$im1;

Ingo
On 10/18/22 07:52, Paul Goodall wrote:
Hi perldl peeps,

I'm trying to do something that should be really simple, but it seems I'm 
falling over at the first hurdle.
I've replicated the error in it's simplest form from the example given in the 
docs as follows, and I've highlighted the offending line.


use PDL<https://metacpan.org/pod/PDL::Transform>;
use PDL::IO::Image<https://metacpan.org/pod/PDL::Transform>;
use PDL::Transform<https://metacpan.org/pod/PDL::Transform>;

$im = rfits('m51.fits');

$tr = t_linear({rot=>30});

$im1 = $tr->map($tr);

---
And I'm hit with this one:

> Undefined subroutine ::Transform::Linear::identity called at transform.pd 
> line 2729.

I'm using PDL v2.080 on Ubuntu 20.04 (focal).

This feels like it's something that has been solved a million times, but I 
can't seem to find the solution.  Am I looking at the wrong Docs or doing 
something obviously silly?

cheers,

Paul




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Re: [Pdl-general] PDL::Tranform issues

2022-10-18 Thread Paul Goodall 
Hi Ingo,

With or without the curly braces - it's the same for me.  Also - the error 
happens before the map stage, during the call to 't_linear'.

I will write a simple Bilinear Interpolation myself, I would have just 
preferred to use the in-built capability in 'PDL::Transform'.

---
pdl> use PDL::Transform;

  
 
pdl> $im = rfits "m51.fits" 

  
Reading IMAGE data...
BITPIX =  -32  size = 262144 pixels 
Reading  1048576  bytes 
BSCALE = 1 &&  BZERO = 0  
 
pdl> $tr = t_linear({rot=>30}); 

  
Undefined subroutine ::Transform::Linear::identity called at transform.pd 
line 2729.
 
pdl> $tr = t_linear(rot=>30);   

  
Undefined subroutine ::Transform::Linear::identity called at transform.pd 
line 2729.
---

cheers,

Paul


> On 18 Oct 2022, at 10:05 am, Ingo Schmid  wrote:
> 
> Dear Paul,
> 
> first, I think you do not need the curly { } around rot. 
> 
> Second, map needs $tr and $im. You can call it $tr->map($im) or 
> $im->map($tr), as far as I know.
> 
> With these changes, it works for me.
> 
> use PDL;
> #use PDL::IO::;
> use PDL::Transform;
> use PDL::Graphics::Gnuplot;
> 
> $im = rfits('/data/ingo/git/PDL/pdl-code/m51.fits');
> $tr = t_linear({rot=>30});
> print $Tr;
> $im1 = $tr->map($im);
> gplot {out=>'i1.png',term=>'png',},with=>'image',$im;
> gplot {out=>'i2.png',term=>'png',},with=>'image',$im1;
> 
> 
> 
> 
> Ingo
> 
> On 10/18/22 07:52, Paul Goodall wrote:
>> Hi perldl peeps,
>> 
>> I'm trying to do something that should be really simple, but it seems I'm 
>> falling over at the first hurdle.
>> I've replicated the error in it's simplest form from the example given in 
>> the docs as follows, and I've highlighted the offending line.
>> 
>> 
>> use PDL ;
>> use PDL::IO::Image ;
>> use PDL::Transform ;
>> $im = rfits('m51.fits');
>> $tr = t_linear({rot=>30});
>> $im1 = $tr->map($tr); 
>> ---
>> And I'm hit with this one:
>> 
>> > Undefined subroutine ::Transform::Linear::identity called at 
>> > transform.pd line 2729.
>> 
>> I'm using PDL v2.080 on Ubuntu 20.04 (focal).
>> 
>> This feels like it's something that has been solved a million times, but I 
>> can't seem to find the solution.  Am I looking at the wrong Docs or doing 
>> something obviously silly?
>> 
>> cheers,
>> 
>> Paul
>> 
>> 
>> 
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>> 
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Re: [Pdl-general] PDL::Tranform issues

2022-10-18 Thread Ingo Schmid 

Dear Paul,

first, I think you do not need the curly { } around rot.

Second, map needs $tr and $im. You can call it $tr->map($im) or
$im->map($tr), as far as I know.

With these changes, it works for me.

use PDL;
#use PDL::IO::;
use PDL::Transform;
use PDL::Graphics::Gnuplot;

$im = rfits('/data/ingo/git/PDL/pdl-code/m51.fits');
$tr = t_linear({rot=>30});
print $Tr;
$im1 = $tr->map($im);
gplot {out=>'i1.png',term=>'png',},with=>'image',$im;
gplot {out=>'i2.png',term=>'png',},with=>'image',$im1;


Ingo

On 10/18/22 07:52, Paul Goodall wrote:

Hi perldl peeps,

I'm trying to do something that should be really simple, but it seems
I'm falling over at the first hurdle.
I've replicated the error in it's simplest form from the example given
in the docs as follows, and I've highlighted the offending line.


|use| |PDL ;|
|use| |PDL::IO::Image ;|
|use| |PDL::Transform ;|
|
|$im| |= rfits(||'m51.fits'||);|
|$tr| |= t_linear({||rot||=>30});|
|$im1| |= ||$tr||->||map||(||$tr||); |
---
|
And I'm hit with this one:

> Undefined subroutine ::Transform::Linear::identity called at transform.pd 
line 2729.

I'm using PDL v2.080 on Ubuntu 20.04 (focal).

This feels like it's something that has been solved a million times,
but I can't seem to find the solution.  Am I looking at the wrong Docs
or doing something obviously silly?

cheers,

Paul


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[Pdl-general] PDL::Tranform issues

2022-10-17 Thread Paul Goodall 
Hi perldl peeps,

I'm trying to do something that should be really simple, but it seems I'm 
falling over at the first hurdle.
I've replicated the error in it's simplest form from the example given in the 
docs as follows, and I've highlighted the offending line.


use PDL ;
use PDL::IO::Image ;
use PDL::Transform ;
$im = rfits('m51.fits');
$tr = t_linear({rot=>30});
$im1 = $tr->map($tr); 
---
And I'm hit with this one:

> Undefined subroutine ::Transform::Linear::identity called at transform.pd 
> line 2729.

I'm using PDL v2.080 on Ubuntu 20.04 (focal).

This feels like it's something that has been solved a million times, but I 
can't seem to find the solution.  Am I looking at the wrong Docs or doing 
something obviously silly?

cheers,

Paul___
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