[Scilab-users] xload mess ...

[Antoine Monmayrant]

Hi all,

I'm fighting with xload to reload saved figures, modify them (aesthetics only) 
and export.
There are several issues with xload that does not seem to match the 
documentation:

- If no graphic windows are opened, xload('figfile.scg') is creating a new one 
and restoring the figure size ( gcf().figure_size ), contrary to what is stated 
in the documentation "xload does not restore the window number, the window size 
nor the window dimensions."
- If there are graphic windows opened, xload('figfile.scg') adds the saved 
figure to the current window, usually resulting in a terrible mess, figure size 
being lost during the battle. The fact the the current window is modified by 
calling xload() is not mentioned in the documentation.
-- if h=scf() and using xload('figfile.scg',h) the figure is restored in h and 
the original figure size is lost (h.figure_size is used).

So here is my question: is there a way to restore a figure from a file, 
including its figure size, without resorting to closing all the other figures 
beforehand?

Cheers,

Antoine

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Re: [Scilab-users] {EXT} help for specific plot

[Vesela Pasheva]

Thank you, Christophe,

param3d works exactly as I have expected. This was my idea.
Now I will try the second option you have proposed.

Thank you again.
Vesela




На 10-09-2019 17:44, Dang Ngoc Chan, Christophe написа:

Hello,


De : Vesela Pasheva

I am dealing with a closed planar contour, presented in a struct 
PS.x,[],PS.y,[]
with m points. The contour is closed, so m+1 point coincides with the 
first.
Parallel to this I have a quantity TS (temperature) as an array which 
elements

correspond to the points of the contour.

The question is: how to present graphically the data - the points, and 
the
temperatures. It seems to be a cilindrical surface, which base is the 
contour,

and heghts are the values of TS.


I'm not sure to understand well but here are a few ideas:

1. The TS parameter can be the z axis.
If PS.x, PS.y and TS are vectors of the same size, try the param3d() 
function

https://help.scilab.org/docs/6.0.2/en_US/param3d.html

something like

param3d(PS.x, PS.y, TS)

2. The TS parameter can be represented by a color.
Have a look at the scatter() function:
https://help.scilab.org/docs/6.0.2/en_US/scatter.html

but you will have to discretize the TS values to associate a value to a 
colour

which is not straightforward.

You can also define a matrix of values,
you then discretize the x and y values.
The pixels corresponding to a (PS.x(i), PS.y(i)) have their TS value,
the other pixels have a %nan, then you can use grayplot()

https://help.scilab.org/docs/6.0.2/en_US/grayplot.html

Hope this helps

--
Christophe Dang Ngoc Chan
Mechanical calculation engineer

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