I asked this question on stackoverflow, since there I can show
the plots:
<http://stackoverflow.com/questions/43064837/octave-transparent-surfaces-how>
I try to plot transparent surfaces in Octave using facealpha set
to 0.2.
Ok, I have read that this is not implemented, but if I run this
code, I get
a plot with a transparent plane.
close all;
clf reset;
cla reset;
graphics_toolkit("gnuplot");
colormap(bone(64));
a1=-1;b=1;h1=0.01;# making a mesh
x=a1:h1:b; x2=a1:h1:b; nz2=length(x2);
[X1,Y1]=meshgrid(x2,x2);
Z1=zeros(nz2,nz2); # function equal to zero on the mesh
s1=mesh(X1,Y1,Z1);
view([120 40]);
# properties of the faces and edges
set(s1,'edgecolor','none')
set(s1,'facecolor','black')
set(s1,'facealpha',0.05)
hold on
scatter3([-0.5 0],[-0.5 0],[0.5 -0.5],8,'k','.');# two points one above and one below the plane
# print to eps
print -deps testsurface.eps
Doing this a plot pops up, where the plane is transparent; but the result of the print command gives a non-transparent
plane, the point below it cannot be seen.
I tried it with fltk, same result, with qt no plane at all.
I would like to print it with the print command, since there are many options, size etc.
Any ideas?
Thanks
Karl