Change 3x1 double to 1x3 double and convert it to a string to insert in text correctly

Hi

I have following array which contains of 3x1 double:

I'd like to convert it to a string and insert it into a text with strcat which only works with strings.

for k = 1:size(Polygons,2)
    Color_Interpolated{k} = num2str(Color_Interpolated{k});
end

Unfortunately, my string looks now like this:

How can I change this to a 1x3 double that the eventual output is like 0 0.667 0.667 ? I need to convert it later to a string.

Below I combine all the strings together, and I need to transpose it to match the dimensions. I used reshape too, with the same results.

for k = 1:size(Polygons,2)
    Complete_File{k} = strcat(Shape, Color_Interpolated{k});
    Complete_File{k} = transpose(Complete_File{k});
    Complete_File{k} = strcat(Complete_File{k}, Geometry,...
                       Assoc_Polygons{k}, coordIndex);
end

Complete_File_table = cell2table(Complete_File);
writetable(Complete_File_table,'Test.txt');

The text file looks now like this:

Shape
 {
     appearance Appearance {
      material Material {
       Color       0      }
     }
      geometry IndexedFaceSet

So the color is not inserted correctly, I think if the cells in Color_Interpolated are correct the text insert will be correct too.

Best regards

Answer 1

[Stephen Cobeldick]

v = [0;2/3;2/3]

v = 3×1

0 0.6667 0.6667

num2str(v.')

ans = '0     0.66667     0.66667'

or

sprintf('%g  %g  %g',v)

ans = '0  0.666667  0.666667'