Thread Subject: Export Surface plots to eps

Hi,

if I export surface plots to eps I get some artefacts. It
looks like the diagonals of the triangles will be displayed.
I see the effect only, if I export to eps or pdf, but not on
jpeg or png. Further, the plot in the matlab figure window
is ok.

There is no difference wheter I export with the menu of the
figure window, with print -deps filename.eps or
saveas(figure(1), 'filename','eps').

Ideas?

I would also like to know if there is a workaround for this!
I get the same result: a thin white line bisects each
quadrilateral face of the surface when shading is set to the
default 'faceted.'

When shading is set to 'flat' or 'interp', there are little
black dots poking through the surface from where the mesh
would be.

I'm most interested in the 'faceted' case.

Thanks!

Patrick

"Stefan M?" <euklid2003@web.de> wrote in message
<g5tm75$8u9$1@fred.mathworks.com>...
> Hi,
>
> if I export surface plots to eps I get some artefacts. It
> looks like the diagonals of the triangles will be displayed.
> I see the effect only, if I export to eps or pdf, but not on
> jpeg or png. Further, the plot in the matlab figure window
> is ok.
>
> There is no difference wheter I export with the menu of the
> figure window, with print -deps filename.eps or
> saveas(figure(1), 'filename','eps').
>
> Ideas?

"Patrick Fletcher" <tuchwando@gmail.com> wrote in message <g6nk0v$t82$1@fred.mathworks.com>...
> I would also like to know if there is a workaround for this!
> I get the same result: a thin white line bisects each
> quadrilateral face of the surface when shading is set to the
> default 'faceted.'
>
> When shading is set to 'flat' or 'interp', there are little
> black dots poking through the surface from where the mesh
> would be.
>
> I'm most interested in the 'faceted' case.
>
> Thanks!
>
> Patrick
>
> "Stefan M?" <euklid2003@web.de> wrote in message
> <g5tm75$8u9$1@fred.mathworks.com>...
> > Hi,
> >
> > if I export surface plots to eps I get some artefacts. It
> > looks like the diagonals of the triangles will be displayed.
> > I see the effect only, if I export to eps or pdf, but not on
> > jpeg or png. Further, the plot in the matlab figure window
> > is ok.
> >
> > There is no difference wheter I export with the menu of the
> > figure window, with print -deps filename.eps or
> > saveas(figure(1), 'filename','eps').
> >
> > Ideas?
>

I'm having the same problem as well. When I export to .eps or .pdf, I do not see the issue with 'interp', but I need to use 'faceted' for my purposes. What platform are you running MATLAB on? I am using a Mac, and I thought the perhaps the problem will not show up on a PC. I've not yet tested this theory though.

Anyone found a solution to this problem yet?

I found 'lighting phong' removed black dots in some cases. No idea why though.

"Jeff Field" <jjfield@gmail.com> wrote in message <gcl2ca$ih$1@fred.mathworks.com>...
> "Patrick Fletcher" <tuchwando@gmail.com> wrote in message <g6nk0v$t82$1@fred.mathworks.com>...
> > I would also like to know if there is a workaround for this!
> > I get the same result: a thin white line bisects each
> > quadrilateral face of the surface when shading is set to the
> > default 'faceted.'
> >
> > When shading is set to 'flat' or 'interp', there are little
> > black dots poking through the surface from where the mesh
> > would be.
> >
> > I'm most interested in the 'faceted' case.
> >
> > Thanks!
> >
> > Patrick
> >
> > "Stefan M?" <euklid2003@web.de> wrote in message
> > <g5tm75$8u9$1@fred.mathworks.com>...
> > > Hi,
> > >
> > > if I export surface plots to eps I get some artefacts. It
> > > looks like the diagonals of the triangles will be displayed.
> > > I see the effect only, if I export to eps or pdf, but not on
> > > jpeg or png. Further, the plot in the matlab figure window
> > > is ok.
> > >
> > > There is no difference wheter I export with the menu of the
> > > figure window, with print -deps filename.eps or
> > > saveas(figure(1), 'filename','eps').
> > >
> > > Ideas?
> >
>
> I'm having the same problem as well. When I export to .eps or .pdf, I do not see the issue with 'interp', but I need to use 'faceted' for my purposes. What platform are you running MATLAB on? I am using a Mac, and I thought the perhaps the problem will not show up on a PC. I've not yet tested this theory though.
>
> Anyone found a solution to this problem yet?

Try the suggestion here:

http://www.mathworks.com/matlabcentral/newsreader/view_thread/280185,

i.e. disable anti-aliasing in your PDF/EPS viewer.