How to built a 3D binary volume array from set of X,Y,Z coordinates?

Hi Guys,

Could I get some help with building a single binary 3D matrix array from a set of 3D field coordinates data please

I have compiled the X,Y,Z field coordinates of the 1100 nodes into a single array. where it can be written as 3 column vectors each of size (1100 x 1).

>> Node_X = XYZ{1};

>> Node_Y = XYZ{2};

>> Node_Z = XYZ{3};

>> scatter3(Node_X,Node_Y,Node_Z)

I tried using scatter3 to visualize the 3D image and it gives the image. But I would like to represent this 3D image as a 3D binary matrix array I also tried using meshgrid, but there seems to be an error stating the size of the array to be too large.

I thought of converting all the 517 x 517 (XY slices) along the Z coordinate to a binary matrix.(slice by slice) and eventually combining the slices into a 3D binary volume.

    Z_unique=unique(Node_Z(:));
    Slice_bin= zeros (517,517);

XY=[Node_X, Node_Y];

for n=Z_unique

        k=1;

      for i=1:1189

          if Node_Z(i)==n

              n_slice(k,:)=[Node_X(i), Node_Y(i)];
              k=k+1;
          end
      end
  	Slice_bin(n_slice{1}, n_slice{2})=1;
  end 
     % Stack these 2-D binary matrices into a single 3D matrix
  I=cat(length(n),Slice_bin{1},Slice_bin{2});
  % Display image
%imshow3Dfull function (Maysam Shahedi,2018)
  Image = squeeze(I); 

figure, 

imshow3Dfull(Image)

The binary image slices don't seem to show up using the above code. Is there any error in my coding? or any other way, I could build a 3D matrix from set of x,y,z field coordinates?

Any feedback/insights are greatly appreciated!

Thanks