[Scilab-users] Stacked 2D plot in 3D

[Claus Futtrup]

Hi Samuel

You're ahead of my next questions there ... :-) ... it looks very nice.

Best regards,
Claus


On Feb 3, 2018 21:28, "Samuel Gougeon" <sgougeon at free.fr> wrote:

> Le 03/02/2018 à 20:11, Claus Futtrup a écrit :
>
> Hi Samuel
>
> Thank you. This thing with the direction of the lines is difficult to
> "discover" by accident. :-)
>
> ... And thanks for the good help for param3d(1). I hope Scilab will adopt
> it.
>
>
> When parts of curves are behind each others, there is a mess due to the
> perspective.
> Here is a way to avoid this (i will also add it in the page):
>
> [Xo, Yo] = ndgrid(-10:0.5:10);R = sqrt(Xo.*Xo + Yo.*Yo) + %eps;Zo = sin(R)./R;
> clf
> // Simple plot with messed curves in the perspectivesubplot(1, 3, 1)param3d1(Xo, Yo, Zo, 150, 85, flag=[2,4])
> // With a curtain and filled curved (to avoid messed areas)subplot(1,3,2)nc = size(Xo,"c");zmin = min(Zo);
> X = [Xo(1,:) ; Xo ; Xo($,:)];Y = [Yo(1,:) ; Yo ; Yo($,:)];Z = [zmin*ones(1,nc) ; Zo ; zmin*ones(1,nc)];
> param3d1(X, Y, Z, 150, 85, flag=[2,4])e = gce();e.children.fill_mode = "on";
> // Try to mask the curtain with %nan//  => unsuccessful due to the bug http://bugzilla.scilab.org/11803subplot(1,3,3)X = [Xo([1 1],:) ; Xo ; Xo([$ $],:)];Y = [Yo([1 1],:) ; Yo ; Yo([$ $],:)];Z = [[zmin ; %nan]*ones(1,nc) ; Zo ; [%nan ; zmin]*ones(1,nc)];
> param3d1(X, Y, Z, 150, 85, flag=[2,4])e = gce();e.children.fill_mode = "on";
>
>
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