transparency

Hi,

I'm drawing a black circle on top of a rose diagram. I'm trying to set that circle half transparent

circle=area(X,Y,'LineStyle','none','FaceColor',[0 0 0]); %black circle
set(circle,'alphadata',0.5);

However, there is no 'alphadata' property for the 'areaseries' class! Does anyone have an idea how to select make that particular circle transparent?

Cheers,

Answer 1

[Walter Roberson]

patchobjs = findobj(get(circle,children), '-property', 'AlphaData');
set(patchobjs, 'AlphaData', 0.5);

[Nicolas]

great ! thank you

[Nicolas]

patchobjs = findobj(get(circle,'Children'), '-property', 'FaceAlpha');

set(patchobjs, 'FaceAlpha', 0.5);

[Nicolas]

Hi again,

I have an additional problem since I'm trying to save in Illustrator:

??? Error using ==> print at 364

Adobe Illustrator driver does not print in Z-Buffer or

OpengGL mode

Can I do something about that?

[Walter Roberson]

Transparency requires OpenGL.

You might be able to get further with the File Exchange Contribution "export_fig", but even then you will probably not be able to go _directly_ to Illustrator.

[Oliver Woodford]

The only way I know of exporting translucent patches as vector graphics (export_fig can't) is to export to SVG using:

http://www.mathworks.com/matlabcentral/fileexchange/7401