1 |
function [] = merccube(XX,YY,C) |
2 |
% merccube(x,y,c) |
3 |
% |
4 |
% Plots cubed-sphere data in mercator projection. (x,y) are |
5 |
% coordinates, c is cell-centered scalar to be plotted. |
6 |
% All arrays (x,y,c) should have dimensions of NxNx6 or 6NxN. |
7 |
% |
8 |
% The default plotting mode is shading faceted. Using this or |
9 |
% shading flat, (x,y) should be the coordinates of grid-corners |
10 |
% and can legitimately have dimension (N+1)x(N+1)x6. |
11 |
% |
12 |
% If using shading interp, then (x,y) must be the coordinates of |
13 |
% the cell centers. |
14 |
% |
15 |
% e.g. |
16 |
% |
17 |
% xg=rdmds('XG'); |
18 |
% yg=rdmds('YG'); |
19 |
% ps=rdmds('Eta.0000000000'); |
20 |
% mercube(xg,yg,ps); |
21 |
% colorbar;xlabel('Longitude');ylabel('Latitude'); |
22 |
% |
23 |
% xc=rdmds('XC'); |
24 |
% yc=rdmds('YC'); |
25 |
% mercube(xc,yc,ps);shading interp |
26 |
|
27 |
if max(max(max(YY)))-min(min(min(YY))) < 3*pi |
28 |
X=XX*180/pi; |
29 |
Y=YY*180/pi; |
30 |
else |
31 |
X=XX; |
32 |
Y=YY; |
33 |
end |
34 |
Q=C; |
35 |
|
36 |
if ndims(X)==2 & size(X,1)==6*size(X,2) |
37 |
disp('1'); |
38 |
[nx ny nt]=size(X); |
39 |
X=permute( reshape(X,[nx/6 6 ny]),[1 3 2]); |
40 |
Y=permute( reshape(Y,[nx/6 6 ny]),[1 3 2]); |
41 |
Q=permute( reshape(Q,[nx/6 6 ny]),[1 3 2]); |
42 |
elseif ndims(X)==3 & size(X,2)==6 |
43 |
X=permute( X,[1 3 2]); |
44 |
Y=permute( Y,[1 3 2]); |
45 |
Q=permute( Q,[1 3 2]); |
46 |
elseif ndims(X)==3 & size(X,3)==6 |
47 |
[nx ny nt]=size(X); |
48 |
else |
49 |
size(XX) |
50 |
size(YY) |
51 |
size(C) |
52 |
error('Dimensions should be 2 or 3 dimensions: NxNx6, 6NxN or Nx6xN'); |
53 |
end |
54 |
|
55 |
if size(X,1)==size(Q,1) |
56 |
whos |
57 |
X(end+1,:,:)=NaN; |
58 |
X(:,end+1,:)=NaN; |
59 |
X(end,:,[1 3 5])=X(1,:,[2 4 6]); |
60 |
X(:,end,[2 4 6])=X(:,1,[3 5 1]); |
61 |
X(:,end,[1 3 5])=squeeze(X(1,end:-1:1,[3 5 1])); |
62 |
X(end,:,[2 4 6])=squeeze(X(end:-1:1,1,[4 6 2])); |
63 |
Y(end+1,:,:)=NaN; |
64 |
Y(:,end+1,:)=NaN; |
65 |
Y(end,:,[1 3 5])=Y(1,:,[2 4 6]); |
66 |
Y(:,end,[2 4 6])=Y(:,1,[3 5 1]); |
67 |
Y(:,end,[1 3 5])=squeeze(Y(1,end:-1:1,[3 5 1])); |
68 |
Y(end,:,[2 4 6])=squeeze(Y(end:-1:1,1,[4 6 2])); |
69 |
end |
70 |
[nx ny nt]=size(X); |
71 |
|
72 |
Q(end+1,:,:)=0; |
73 |
Q(:,end+1,:)=0; |
74 |
Q(end,:,[1 3 5])=Q(1,:,[2 4 6]); |
75 |
Q(:,end,[2 4 6])=Q(:,1,[3 5 1]); |
76 |
Q(:,end,[1 3 5])=squeeze(Q(1,end:-1:1,[3 5 1])); |
77 |
Q(end,:,[2 4 6])=squeeze(Q(end:-1:1,1,[4 6 2])); |
78 |
|
79 |
hnx=ceil(nx/2); |
80 |
hny=ceil(ny/2); |
81 |
|
82 |
for k=1:6; |
83 |
i=1:hnx; |
84 |
x=longitude(X(i,:,k)); |
85 |
pcolor(x,Y(i,:,k),Q(i,:,k)) |
86 |
axis([-180 180 -90 90]) |
87 |
hold on |
88 |
if max(max(max(x)))>180 |
89 |
pcolor(x-360,Y(i,:,k),Q(i,:,k)) |
90 |
end |
91 |
i=hnx:nx; |
92 |
x=longitude(X(i,:,k)); |
93 |
pcolor(x,Y(i,:,k),Q(i,:,k)) |
94 |
if max(max(max(x)))>180 |
95 |
pcolor(x-360,Y(i,:,k),Q(i,:,k)) |
96 |
end |
97 |
end |
98 |
hold off |