utils/matlab/contourfv.m

1258a0b61b Alis*0001 function [hc,hh,hcf] = contourfv(x,z,h,a,varargin)
                0002 % CONTOURFV(X,Z,H,A)
                0003 %
                0004 % Is the same as CONTOURF except it automatically extends the dataset
                0005 % to the depth of the topography "H". This is srictly for plotting
                0006 % vertical (x,z) sections in conjuction with "partial cells" in the MITgcm.
                0007 %
                0008 % X is horizontal coordinate (vector)
                0009 % Z is vertical coordinate (vector)
                0010 % H is depth of bottom (vector)
                0011 % A is field to be plotted (matrix)
                0012 %
                0013 % Optional arguments are passed on to CONTOURF
7f0effbc3a Jean*0014
1258a0b61b Alis*0015 nx=prod(size(x));
                0016 nz=prod(size(z));
                0017 %max(size(h))
                0018 %prod(size(h))
                0019 if max(size(h)) ~= prod(size(h)) | prod(size(h)) ~= nx
                0020  error('H must have dimensions of size(X)');
                0021 end
90e90d14bf Alis*0022 %ndims(squeeze(a))
                0023 %size(squeeze(a))
1258a0b61b Alis*0024 if ndims(squeeze(a)) ~= 2 | sum(size(squeeze(a)) ~= [nx nz])
                0025  error('A must have dimensions of size(X) x size(H)');
                0026 end
                0027
                0028 % Create extended Z coordinate
                0029 zz=zeros(1,nz+2);
                0030 zz(2:nz+1)=z;
90e90d14bf Alis*0031 zz(1)=max(0,z(1));
1258a0b61b Alis*0032 zz(nz+2)=1.5*z(nz)-0.5*z(nz-1);
                0033
                0034 [Z,X]=meshgrid(zz,x);
                0035
                0036 aa=squeeze(a);
                0037 au=aa(:,[1 1:nz-1]);
                0038 aa(isnan(aa))=au(isnan(aa));
                0039 A=zeros(nx,nz+2);
                0040 A(:,2:nz+1)=aa;
                0041 A(:,1)=aa(:,1);
                0042 A(:,nz+2)=aa(:,nz);
                0043 clear aa au
                0044
                0045 [Hz,Hx]=meshgrid(zz,h);
                0046 clear Hz
                0047
                0048
                0049 % H might be positive...
                0050 if min(z)*min(h) > 0
                0051  Z=max(Z,Hx);
                0052 else
                0053  Z=max(Z,-Hx);
                0054 end
                0055 clear Hx
                0056
                0057 [hc hh hcf]=contourf(X,Z,A,varargin{:});