[Scilab-users] question on graphic children order

[Federico Miyara]

Dear all,

I would like to know if there is a reason for the fact that whenever new 
graphic objects are added to an axes, the last one that has been created 
is always the one with index 1 instead of n+1 (where n is the number of 
objects prior to new one).

Example:

scf(1)
clf(1)

// Plot a simple two-point graph
plot2d([0, 1], [0, 1])
ax = gca()

// Colect plotted data
a = ax.children(1).children.data

// Plot a simple two-point graph
plot2d([0, 1],[0.5, 1.5])

// Colect plotted data corresponding to index 1
b = ax.children(1).children.data

// Colect plotted data corresponding to index 2
c = ax.children(2).children.data

After the first plot we get

a  =
    0.   0.
    1.   1.

After the second plot we get

b  =
    0.   0.5
    1.   1.5

c  =

    0.   0.
    1.   1.

I would expect that b = a, i.e, once a children object has been created 
on the axes, it would be reasonable that its index were kept constant. 
The current behavior is as if each new object were inserted in the 
structure before the previous one instead of after it.

Regards,

Federico Miyara



---
El software de antivirus Avast ha analizado este correo electrónico en busca de virus.
https://www.avast.com/antivirus
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.scilab.org/pipermail/users/attachments/20190407/799769a1/attachment.htm>