Transparent background on other types of images

I am trying to make a polar plot with a transparent background.

polar(th,Vpc,'r') set(gca,'color','none') set(gcf,'color','none')

gcf works for the outside of the figure however the inside of the figure is still white. Also I cannot increase the line thickness polar(th,Vpc,'r','linewidth',3) also does not work.

Answer 1

[Jan]

Your observations are correct. The background of a polar plot is not the background of the rectangular axes object. It is a disc drawn by the POLAR command. Simply look in the code to learn, how you can use FINDOBJ() to determine the handles from the outside. Or create a modified copy of POLAR.

Do you want to change the line width of the data line or of the grid lines?