How to change the default background color of a Smith Chart to white?

I have generated a plot of the smith chart using the command smithchart. However, the default background is gray. Can the gray background be changed to a white one from the command line? If so, what command should I use?

Thanks

Floyd

Answer 1

[Mischa Kim]

Hello Floyd, yes it can. Insert

myfigure = figure('Color',[1 1 1]);    % [1 1 1] corresponds to "white"

right before smithchart command.

[Floyd Haylock]

Thanks Mischa for your response. I tried what you provided however the background or the section of the figure outside of the circle representing the Smith chart is still gray. I am hoping to be able to change the gray shade to a white color.

[Mischa Kim]

Floyd, could you please attach your code or paste it in a comment box? What happens, when you execute

smithdata = 0.1+j*[1:1000]*0.001;
myfigure  = figure('Color',[1 1 1]);
smithchart(smithdata);

[Floyd Haylock]

Hi Mischa - with phone support, I got it to work using the following commands and order:

smithchart; set(gcf,'Color',[1 1 1]);

[Floyd Haylock]

Mischa, the original piece of code that I had was as follows, where s11mat and s22mat are complex data:

figPos = [200 200 500 500];
fH = figure('Color',[1 1 1]);
set(fH, 'Position',figPos);

s11 = mean(s11mat,2);
s22 = mean(s22mat,2);
aH = smithchart; hold on;
set(aH,'LineWidth',1,'LineType','-','Color',[0.7 0.7 0.7],...
    'LabelSize',fontSize,'LabelColor',[0 0 0],'Type','ZY');
set(findall(gcf,'type','text'),'fontName','Times New Roman')
[s11h,~] = smithchart(s11);
[s22h,~] = smithchart(s22);

FYI, the second piece of code you wrote provided the result that I was looking for.

Thanks