Math Forum / Math Software / Scilab / August 2006

If I try to run the Uicontrol demo (using Demo->TK/TCL
Demos->Uicontrol) on my Linux machine, I find a very strange behaviour
with the scroll bar. At first it works, but after reaching its maximum
possition, all values seem to be multiplied by 10. I have the same

I created a scilab application for my work, with a GUI where by clicking
on buttons, things happen. Now my colleagues would like to substitute a
key click for a mouse click, which would ease things since there is a lot
of repetitive clicking in this application. For example, I would ...

I am interested in the output vectors w and iw produced by the ode
function. Indeed, I need to understand why a simulation diverges and
would like to have a look at these useful vectors.
However, the help document is not complete:

Running scilab-4.0-b4-20060515
Here's another problem with surf() and axis properties:
-->Z = [ 0     0     0.01 -0.03 -0.18 -0.25 -0.11 -0.02  0     0  
        0     0.01  0.03 -0.37 -1.87 -2.47 -1.09 -0.16 -0.01  0  

Please bear with these vague questions.  I want to use Scilab
and to code a published algorithm to do Image Interpolation
based on Data Directed Triangulation (DDT).
Briefly, the heart of the alg. is the formation of a 2D

I want to use a function in DLL but it's not working..
I think, that I need to use "link" and "fort" ..?
I type this code :
link('piapi32.dll','pitm_parsetime','C')

What about the possibility of using new graphics features with scicos
sink boxes. I read in a previous topic posted in 2004 that you were
waiting to be sure of robustness of new graphics.
thanks

I am confused by the use of the gca() function and handle assignment in
Scilab 4.0:
If I create a colorbar and get the handle using
 colorbar(0,1)

I'm in the beginning of the development of a simulation software
package.
The purpose is: "DSP-principles simulation"
I try to create the software with TCL/TK for the visual aspect and

I'd like to generate a movie, say an MPEG4 file, from a sequence of
figures. I generated the figures as a Scilab animation. Google turned up
many MPEG players and a lot of theory, but I could not find ready made
software for making an MPEG. Does anyone have any hints for me?

  I followed the suggestions of an earlier thread and set my graphics
up as follows; (My data is on an adaptive grid - aerial image
simulations of an electronic design mask)
Mat = read('data.txt', -1, 3);  // -1 to read all the lines

Can anyone explain the huge difference in times when using Scilab 4's
SVD as shown below?
-->A=rand(1000,1000);
-->tic();B=svd(A);toc()

I inserted some "ScilabEval"  commands into the tcl script,but some
error came.After coming back from the Scilab routine ,the tcl
primitives are not in use.
For example:

I try to load a large .mat file (200 MB binary type), but it does not
work. I get a error message, although I tried to expand the memory with
"stacksize(70000000)".
->loadmatfile('h:\test2.mat')

As a newbie, reading through the limited amount of documentation
regarding .scilab and scilab.ini it is my understanding that the
distinction between the two is primarily .scilab for Linux and
scilab.ini for windows.  I was wondering what actually can be placed in