Re: [Scilab-users] Influencing the automatic rotation_angles in advance

2016-12-10 Thread Daniel Penalva 
On Dec 10, 2016 6:00 PM, "Jens Simon Strom"  wrote:
>
> Hallo Scilab experts,
> During execution of  plot3d, param3d, surf, etc. Scilab automatically
chooses the axes property  rotation_angles. Is there a way to influence
this automatic? I do not mean ca=gca(); ca.rotation_angles=[ang1 ang2].
The setting should be positioned in the script before the plot command und
should be valid for further plots.
>
> This question is in context with the thread  'untwinkle  a sequence of
graphics'.  Without setting ca.rotation_angles=[a1 a2] after the param3d
there is no twinkle. If I set the appropriate aspect - twinkling occurs
again.
>
> I have not been able to reduce this to a a minimal example. Perhaps my
enquiry suffices.
>
> Kind regards
> Jens
>
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Re: [Scilab-users] image area mask for applying for filter

2016-12-10 Thread Philipp Mühlmann 
Hi Erhy,

please find a code snipplet for extrascting an area of interest from an
image.

Way 1:
mask is extracted from original image and stored as a new variable.

original_img = rand(100,100).*256;
extract_img = original_img (25:74,25:74);


Way 2:
make a copy of the original image   // to keep the original values...just
in case
directly process the copy


original_img = rand(100,100).*256;
filtered_img = original_img;filtered_img(25:75,25:74) = 0;
Matplot(filtered_img)


Of course this example is more grayscale related, but you can do this as
well for RGB images.

original_img_R = rand(100,100).*256;original_img_G =
rand(100,100).*256;original_img_B = rand(100,100).*256;
original_RGB(:,:,1) = original_img_R;original_RGB(:,:,2) =
original_img_G;original_RGB(:,:,3) = original_img_B;
filtered_RGB = original_RGB;filtered_RGB(25:75,25:75,:)=0;
ShowColorImage(filtered_RGB,'');   // Note: ShowColorImage is part of
the IPD toolbox.

HTH

Philipp















2016-12-10 21:34 GMT+01:00 Erhy :

> Hello!
> My interest ist to image processing.
> Are there tools to mask an area of an image,
> that a filter is only applied for the masked area?
>
> Thank you for tips
> Erhy
>
>
>
> --
> View this message in context: http://mailinglists.scilab.
> org/image-area-mask-for-applying-for-filter-tp4035216.html
> Sent from the Scilab users - Mailing Lists Archives mailing list archive
> at Nabble.com.
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>



-- 
In Kanada is' ka' na' da. Sonst wär' Kanada Jemanda.

There we have the salad.
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Re: [Scilab-users] Influencing the automatic rotation_angles setting in advance

2016-12-10 Thread Samuel Gougeon 

Le 10/12/2016 21:34, Samuel Gougeon a écrit :

Le 10/12/2016 21:00, Jens Simon Strom a écrit :

Hallo Scilab experts,
During execution of  plot3d, param3d, surf, etc. Scilab 
*automatically* chooses the axes property *rotation_angles*. Is there 
a way to influence this automatic? I do not mean ca=gca(); 
ca.rotation_angles=[ang1 ang2].  The setting should be positioned in 
the script***before* the plot command und should be valid for further 
plots.

Jens,

I bet that you will become expert in documentation reading:
Please see the theta and alpha plot3d() options:
https://help.scilab.org/docs/6.0.0/en_US/plot3d.html

Nevertheless, i agree that the present plot3d() behavior is bugged in 
2 ways:


 1. if the current axes has already some rotation_angles clearly set
to a 3D view (= at least one of both azimuth and polar angles not
being a multiple of 90), plot3d()  should not reset them to some
default rotation_angles values, but use the current axes without
reorienting it.

 2. plot3d() default rotation_angles values should be taken from
gda(). It is presently not the case. There is no reason to use
gda() / sda() only for 2D plots.



These issues are reported there: http://bugzilla.scilab.org/14890

SG

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Re: [Scilab-users] Influencing the automatic rotation_angles setting in advance

2016-12-10 Thread Samuel Gougeon 

Le 10/12/2016 21:00, Jens Simon Strom a écrit :

Hallo Scilab experts,
During execution of  plot3d, param3d, surf, etc. Scilab 
*automatically* chooses the axes property *rotation_angles*. Is there 
a way to influence this automatic? I do not mean ca=gca(); 
ca.rotation_angles=[ang1 ang2].  The setting should be positioned in 
the script***before* the plot command und should be valid for further 
plots.

Jens,

I bet that you will become expert in documentation reading:
Please see the theta and alpha plot3d() options:
https://help.scilab.org/docs/6.0.0/en_US/plot3d.html

Nevertheless, i agree that the present plot3d() behavior is bugged in 2 
ways:


1. if the current axes has already some rotation_angles clearly set to
   a 3D view (= at least one of both azimuth and polar angles not being
   a multiple of 90), plot3d()  should not reset them to some default
   rotation_angles values, but use the current axes without reorienting it.

2. plot3d() default rotation_angles values should be taken from gda().
   It is presently not the case. There is no reason to use gda() /
   sda() only for 2D plots.

BR

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[Scilab-users] image area mask for applying for filter

2016-12-10 Thread Erhy 
Hello!
My interest ist to image processing.
Are there tools to mask an area of an image,
that a filter is only applied for the masked area?

Thank you for tips
Erhy



--
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http://mailinglists.scilab.org/image-area-mask-for-applying-for-filter-tp4035216.html
Sent from the Scilab users - Mailing Lists Archives mailing list archive at 
Nabble.com.
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Re: [Scilab-users] Influencing the automatic rotation_angles setting in advance

2016-12-10 Thread Serge Steer 

Le 10/12/2016 à 21:00, Jens Simon Strom a écrit :

Hallo Scilab experts,
During execution of  plot3d, param3d, surf, etc. Scilab 
*automatically* chooses the axes property *rotation_angles*. Is there 
a way to influence this automatic? I do not mean ca=gca(); 
ca.rotation_angles=[ang1 ang2].  The setting should be positioned in 
the script***before* the plot command und should be valid for further 
plots.


This question is in context with the thread  'untwinkle  a sequence of 
graphics'.  Without setting ca.rotation_angles=[a1 a2] after the 
param3d  there is no twinkle. If I set the appropriate aspect - 
twinkling occurs again.
You can call  drawlater() just before the sequence plot3d(...); 
ca.rotation_angle=

this way the intermediate graphics will not be displayed
and call drawnow() just after to show the final graphic


I have not been able to reduce this to a a minimal example. Perhaps my 
enquiry suffices.


Kind regards
Jens


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Re: [Scilab-users] Calling a java method in a Scilab function

2016-12-10 Thread n.gulunay 


Thank you Samuel.


Sent via the Samsung GALAXY S® 5, an AT 4G LTE smartphone

 Original message 
From: Samuel Gougeon  
Date: 12/10/16  9:44 AM  (GMT-06:00) 
To: Users mailing list for Scilab  
Subject: Re: [Scilab-users] Calling a java method in a Scilab function 


Le 10/12/2016 16:03, n.gulunay a
  écrit :



  
  Hi,
  

  
  I thought I unsubscribed from this mailing list but I am
still getting them. 
  

  
  I even deleted my user name at one point but still kept
getting them. 
  

  
  Currently I appear to be unsubscribed as the system suggests
I subscribe yet I am still getting many emails. I would rather
sign on and look up what I need.
  

  
   Is there more than once place to unsubscribe or is the
unsubscribe function not working? Could someone please let me
know how to proceed.
  Nec



See at the bottom of each received message:

http://lists.scilab.org/mailman/listinfo/users
SG



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Re: [Scilab-users] Untwinkle a sequence of graphics

2016-12-10 Thread Jens Simon Strom 

Hallo Samuel,
That works perfectly. Thanks a lot! Tuning graphics is always a big 
challenge - consuming more time than the mathematical part.

Kind regards
Jens

Am 10.12.2016 14:46, schrieb Samuel Gougeon:

Hello Jens,

Le 10/12/2016 11:55, Jens Simon Strom a écrit :

Hallo Scilab experts,
How would you avoid the 'twinkling'  when clicking for the next image?


For instance by using plot3d() options:
xdel();
figure('position',[100  100  1200  800],'background',-2);
xtitle('Click into figure and watch twinkling.')
x  =  [0  1  0];  
y  =  [0  0  1];  
z  =  [1  1  1];
for  i  =  1:8  
   plot3d(x',  y',z'*i/5,flag=[2  4  0],leg="@@")

   xclick()
end
SG



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Re: [Scilab-users] Help with reading data (csvRead)

2016-12-10 Thread Claus Futtrup 

Hi Samuel

OK, I trust it's just a matter of how the Mread matrix is displayed.

/Claus

On 10-12-2016 16:41, Samuel Gougeon wrote:

Le 10/12/2016 16:18, Claus Futtrup a écrit :

Hi Samuel

Indeed it looks simpler than using csvRead, I will look into this 
function as well. It looks like it cuts off some of the decimals.


Very unlikely. At least not a single one for the full file you sent to me:
f = mgetl(filename);
f(1:5) = [];
s = sprintf("%9.3f %+10.4f %+10.4f  \n",Mread);
and(f==s)

-->f = mgetl(filename);
-->f(1:5) = [];
-->s = sprintf("%9.3f %+10.4f %+10.4f  \n",Mread);
-->and(f==s)
 ans  =
  T

Trailing zeros are not displayed in the console. This can be 
misleading (and is unconvenient), but actual values are ok.


Samuel



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Re: [Scilab-users] Calling a java method in a Scilab function

2016-12-10 Thread Samuel Gougeon 

Le 10/12/2016 16:03, n.gulunay a écrit :

Hi,

I thought I unsubscribed from this mailing list but I am still getting 
them.


I even deleted my user name at one point but still kept getting them.

Currently I appear to be unsubscribed as the system suggests I 
subscribe yet I am still getting many emails. I would rather sign on 
and look up what I need.


 Is there more than once place to unsubscribe or is the unsubscribe 
function not working? Could someone please let me know how to proceed.

Nec


See at the bottom of each received message:

http://lists.scilab.org/mailman/listinfo/users

SG

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Re: [Scilab-users] Help with reading data (csvRead)

2016-12-10 Thread Samuel Gougeon 

Le 10/12/2016 16:18, Claus Futtrup a écrit :

Hi Samuel

Indeed it looks simpler than using csvRead, I will look into this 
function as well. It looks like it cuts off some of the decimals.


Very unlikely. At least not a single one for the full file you sent to me:
f = mgetl(filename);
f(1:5) = [];
s = sprintf("%9.3f %+10.4f %+10.4f  \n",Mread);
and(f==s)

-->f = mgetl(filename);
-->f(1:5) = [];
-->s = sprintf("%9.3f %+10.4f %+10.4f  \n",Mread);
-->and(f==s)
 ans  =
  T

Trailing zeros are not displayed in the console. This can be misleading 
(and is unconvenient), but actual values are ok.


Samuel

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Re: [Scilab-users] Help with reading data (csvRead)

2016-12-10 Thread Claus Futtrup 

Hi Samuel

Indeed it looks simpler than using csvRead, I will look into this 
function as well. It looks like it cuts off some of the decimals. Thanks 
for the tip.


Best regards,
Claus

On 10-12-2016 15:54, Samuel Gougeon wrote:

Claus,

You may use simply
[Mread,  header]  =  fscanfMat(filename);
tested on the file sent.
There may be an equivalent with csvRead(), using the substitute option.
To be confirmed. Anyway it would be more complicated than using 
fscanfMat().


BR
Samuel

Le 10/12/2016 15:26, Claus Futtrup a écrit :

Hi Samuel

I didn't mean for the Scilab Users list to design the script for me, 
only hint at what to do about csvRead (or use another function). The 
extracted few lines should be plenty to see my challenges.


Attached is a complete ZMA file.

Best regards,
Claus




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Re: [Scilab-users] Calling a java method in a Scilab function

2016-12-10 Thread n.gulunay 


Hi,
I thought I unsubscribed from this mailing list but I am still getting them. 
I even deleted my user name at one point but still kept getting them. 
Currently I appear to be unsubscribed as the system suggests I subscribe yet I 
am still getting many emails. I would rather sign on and look up what I need.
 Is there more than once place to unsubscribe or is the unsubscribe function 
not working? Could someone please let me know how to proceed.Nec


Sent via the Samsung GALAXY S® 5, an AT 4G LTE smartphone

 Original message 
From: Samuel Gougeon  
Date: 12/10/16  8:09 AM  (GMT-06:00) 
To: Users mailing list for Scilab  
Subject: Re: [Scilab-users] Calling a java method in a Scilab function 


Hello Pierre,

  

  Le 07/12/2016 10:04, Pierre Vuillemin a écrit :


Hi all,
  

  

  I have to create unique IDs for some object in Scilab. For that
  purpose, someone kindly guided me towards the UUID class of java,
  which lead me to create this function in Scilab,
  

  

  function id = make_id()
  

     UUID = jimport("java.util.UUID", %f)
  

     tmp  = jinvoke(UUID,"randomUUID")
  

     id   = jinvoke(tmp,"toString")
  

  endfunction
  

  

  It works fine.
  

  

  An a priori similar function is
  

  

  function id = make_id_err()
  

     UUID = jimport("java.util.UUID", %f)
  

     tmp  = UUID.randomUUID()
  

     id   = tmp.toString()
  

  endfunction
  

  

  where the methods are called without jinvoke. While the
  instructions of the latter function work well in the terminal,
  they lead to an error when trying to exec the function
  'make_id_err'.
  

  

  I was wondering if it is a normal behaviour?
  


No, but the bug is fixed in Scilab 6.0:



In Scilab 5.5.2:

-->endfunction

     UUID = jimport("java.util.UUID", %f)

      !--error 26 

  Récursivité trop complexe ! (Les tables de récurrence
sont pleines)

  at line   2 of function make_id_err called by :  

     tmp  = UUID.randomUUID()

  at line   3 of function make_id_err called by :  

     tmp  = UUID.randomUUID()

  at line   3 of function make_id_err called by :  

  ... etc



In Scilab 6.0:

--> getversion("scilab")


   ans  =


     6.   0.   0.   1.477D+09


  

  --> function id = make_id_err()

  >    UUID = jimport("java.util.UUID", %f)

  >    tmp  = UUID.randomUUID()

  >    id   = tmp.toString()

  > endfunction



--> make_id_err()

 ans  =

 49e4f3f1-736a-435f-bc26-f7061f10de27



BR

Samuel 

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Re: [Scilab-users] Help with reading data (csvRead)

2016-12-10 Thread Samuel Gougeon 

Claus,

You may use simply

[Mread,  header]  =  fscanfMat(filename);

tested on the file sent.
There may be an equivalent with csvRead(), using the substitute option.
To be confirmed. Anyway it would be more complicated than using fscanfMat().

BR
Samuel

Le 10/12/2016 15:26, Claus Futtrup a écrit :

Hi Samuel

I didn't mean for the Scilab Users list to design the script for me, 
only hint at what to do about csvRead (or use another function). The 
extracted few lines should be plenty to see my challenges.


Attached is a complete ZMA file.

Best regards,
Claus


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Re: [Scilab-users] Help with reading data (csvRead)

2016-12-10 Thread Claus Futtrup 

Hi Rafael

So I gather that the separator has to be a single character, when using 
csvRead.


Thanks for the tip, I'll use mfscanf instead, it seems to be tolerant ...

/Claus

On 10-12-2016 15:31, Rafael Guerra wrote:


Hi Claus,

I do not know how to handle multiple spaces separators in csvRead, but 
you can use following code (adapted from recent post by Serge Steer):


// START OF CODE:

u=mopen("example.zma","r");

mgetl(u,5);// reads 5-line header

r=mfscanf(-1,u,"%f %f %f\n");

mclose(u)

// END OF CODE

Regards,

Rafael

*From:*users [mailto:users-boun...@lists.scilab.org] *On Behalf Of 
*Claus Futtrup

*Sent:* Saturday, December 10, 2016 11:23 AM
*To:* International users mailing list for Scilab. 


*Subject:* [Scilab-users] Help with reading data (csvRead)

Hi

I'm trying to read a datafile with csvRead, it might be the wrong 
function. Please help. The file itself looks like this (only showing 
select lines - the file contains 391 lines):



* FILE:C:\Users\claus\example.zma 
* INFO: Arb1
* Data: Impedance (ohms), Phase (degrees)

   10.000+8.8488   +40.1693
   10.199+8.9648   +40.7994
   11.949   +10.0946   +46.1555
   12.188   +10.2827   +46.7923
  141.879+6.7485   -10.8804
  144.715+6.7473   -10.3382
  147.608+6.7438-9.8380
  150.559+6.7377-9.3570
  389.346+7.2282+9.7230
  397.129+7.2456   +10.0717
  987.112+8.5967   +23.3368
 1006.846+8.6355   +23.7056
 9807.309   +26.8760   +57.2720
10003.368   +27.2519   +57.4330
2.000   +44.3153   +62.1741

csvRead complains because the column width is changing. I execute:

localdir = "C:\Users\claus\";
filename = _fullfile_(localdir,"example.zma");
Mread = csvRead(filename," ",".","double",[],[],[],5);

This is the error which csvRead gives (line 10 == line 3 in above 
shortened dataset):


>Warning: Inconsistency found in the columns. At line 10, found 12 columns 
while the previous had 13.
> !--error 999
>csvRead: can not read file C:\Users\claus\example.zma: Error in the 
column structure


What is the recommended way to read the ZMA file?

P.S. ZMA = Impedance with 1) Frequency, 2) Magnitude and 3) Phase data.

/Claus



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Re: [Scilab-users] Calling a java method in a Scilab function

2016-12-10 Thread Samuel Gougeon 

Hello Pierre,

Le 07/12/2016 10:04, Pierre Vuillemin a écrit :

Hi all,

I have to create unique IDs for some object in Scilab. For that 
purpose, someone kindly guided me towards the UUID class of java, 
which lead me to create this function in Scilab,


function id = make_id()
   UUID = jimport("java.util.UUID", %f)
   tmp  = jinvoke(UUID,"randomUUID")
   id   = jinvoke(tmp,"toString")
endfunction

It works fine.

An a priori similar function is

function id = make_id_err()
   UUID = jimport("java.util.UUID", %f)
   tmp  = UUID.randomUUID()
   id   = tmp.toString()
endfunction

where the methods are called without jinvoke. While the instructions 
of the latter function work well in the terminal, they lead to an 
error when trying to exec the function 'make_id_err'.


I was wondering if it is a normal behaviour?

No, but the bug is fixed in Scilab 6.0:

In Scilab 5.5.2:
-->endfunction
   UUID = jimport("java.util.UUID", %f)
!--error 26
Récursivité trop complexe ! (Les tables de récurrence sont pleines)
at line   2 of function make_id_err called by :
   tmp  = UUID.randomUUID()
at line   3 of function make_id_err called by :
   tmp  = UUID.randomUUID()
at line   3 of function make_id_err called by :
... etc

In Scilab 6.0:
--> getversion("scilab")
 ans  =
   6.   0.   0.   1.477D+09

--> function id = make_id_err()
  >UUID = jimport("java.util.UUID", %f)
  >tmp  = UUID.randomUUID()
  >id   = tmp.toString()
  > endfunction

--> make_id_err()
 ans  =
 49e4f3f1-736a-435f-bc26-f7061f10de27

BR
Samuel
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Re: [Scilab-users] Untwinkle a sequence of graphics

2016-12-10 Thread Samuel Gougeon 

Hello Jens,

Le 10/12/2016 11:55, Jens Simon Strom a écrit :

Hallo Scilab experts,
How would you avoid the 'twinkling'  when clicking for the next image?


For instance by using plot3d() options:

xdel();
figure('position',[100  100  1200  800],'background',-2);
xtitle('Click into figure and watch twinkling.')
x  =  [0  1  0];  
y  =  [0  0  1];  
z  =  [1  1  1];
for  i  =  1:8  
  plot3d(x',y', z'*i/5, flag=[2  4  0], leg="@@")

  xclick()
end

SG

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Re: [Scilab-users] Help with reading data (csvRead)

2016-12-10 Thread Samuel Gougeon 

Hello Claus,
Could you please post a true extract of your file, as a file /in 
attachement/, after that you checked than the issue occurs also with 
this extract file?
It will be easier to test the issue, and it will lead to more reliable 
tests than copying/pasting a part of your message in a file.

Regards
SG

Le 10/12/2016 11:22, Claus Futtrup a écrit :


Hi

I'm trying to read a datafile with csvRead, it might be the wrong 
function. Please help. The file itself looks like this (only showing 
select lines - the file contains 391 lines):



* FILE:C:\Users\claus\example.zma
* INFO: Arb1
* Data: Impedance (ohms), Phase (degrees)

   10.000+8.8488   +40.1693
   10.199+8.9648   +40.7994
   11.949   +10.0946   +46.1555
   12.188   +10.2827   +46.7923
  141.879+6.7485   -10.8804
  144.715+6.7473   -10.3382
  147.608+6.7438-9.8380
  150.559+6.7377-9.3570
  389.346+7.2282+9.7230
  397.129+7.2456   +10.0717
  987.112+8.5967   +23.3368
 1006.846+8.6355   +23.7056
 9807.309   +26.8760   +57.2720
10003.368   +27.2519   +57.4330
2.000   +44.3153   +62.1741

csvRead complains because the column width is changing. I execute:

localdir = "C:\Users\claus\";
filename = fullfile(localdir,"example.zma");
Mread = csvRead(filename,"",".","double",[],[],[],5);

This is the error which csvRead gives (line 10 == line 3 in above 
shortened dataset):


>Warning: Inconsistency found in the columns. At line 10, found 12 
columns while the previous had 13.

> !--error 999
>csvRead: can not read file C:\Users\claus\example.zma: Error in the 
column structure


What is the recommended way to read the ZMA file?

P.S. ZMA = Impedance with 1) Frequency, 2) Magnitude and 3) Phase data.

/Claus



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[Scilab-users] Help with reading data (csvRead)

2016-12-10 Thread Claus Futtrup 

Hi

I'm trying to read a datafile with csvRead, it might be the wrong 
function. Please help. The file itself looks like this (only showing 
select lines - the file contains 391 lines):



* FILE:C:\Users\claus\example.zma
* INFO: Arb1
* Data: Impedance (ohms), Phase (degrees)

   10.000+8.8488   +40.1693
   10.199+8.9648   +40.7994
   11.949   +10.0946   +46.1555
   12.188   +10.2827   +46.7923
  141.879+6.7485   -10.8804
  144.715+6.7473   -10.3382
  147.608+6.7438-9.8380
  150.559+6.7377-9.3570
  389.346+7.2282+9.7230
  397.129+7.2456   +10.0717
  987.112+8.5967   +23.3368
 1006.846+8.6355   +23.7056
 9807.309   +26.8760   +57.2720
10003.368   +27.2519   +57.4330
2.000   +44.3153   +62.1741

csvRead complains because the column width is changing. I execute:

localdir = "C:\Users\claus\";
filename = fullfile(localdir,"example.zma");
Mread = csvRead(filename,"",".","double",[],[],[],5);

This is the error which csvRead gives (line 10 == line 3 in above 
shortened dataset):


>Warning: Inconsistency found in the columns. At line 10, found 12 
columns while the previous had 13.

>  !--error 999
>csvRead: can not read file C:\Users\claus\example.zma: Error in the 
column structure


What is the recommended way to read the ZMA file?

P.S. ZMA = Impedance with 1) Frequency, 2) Magnitude and 3) Phase data.

/Claus

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