osse/utils/cart2cyl.m

function [z] = cart2cyl(c,thetai,rhoi,varargin)
% z=cart2cyl(c,xi,yi);
%

NN=size(c);
%[theta rho nz]=size(c);
[x y nz]=size(c);
%[RHO,THETA] = meshgrid(1:rho,-pi+2*pi/theta:2*pi/theta:pi);
%[Y,X] = meshgrid(-(x-1)/2:(x-1)/2,-(y-1)/2:(y-1)/2);
%stepx=(2*x+1)/(2*x);
%stepy=(2*y+1)/(2*y);
stepx=(x+1)/(x);
stepy=(y+1)/(y);
[Y,X] = meshgrid(-(x)/2:stepx:(x)/2,-(y)/2:stepy:(y)/2);
%[Y,X] = meshgrid(x,y);
%[Y,X] = meshgrid(-(x)/2:stepx:(x)/2+stepx,-(y)/2:stepy:(y)/2+stepy);
%[x,y] = pol2cart(THETA,RHO);
[theta,rho] = cart2pol(X,Y);
%theta=(theta./(pi*2)+0.5).*size(thetai,2);
%theta=theta.*2*((size(thetai,2)+1)/size(thetai,2));
%theta=(theta./(pi*2)+0.5).*(size(thetai,2)+1);
%theta=(theta./(pi*2)+0.5).*(size(thetai,2));
theta=(theta./(pi*2)+0.5).*(size(thetai,2));
%theta=(theta./pi).*size(thetai,2);
%theta=(theta./(pi*2)).*size(thetai,2);
%rho=max(rhoi)*rho/((x-1)/2);
rho=max(rhoi)*rho/((x)/2);
%theta=rot90(theta.*180./pi,-1);
%[nx ny nz]=size(c);
%nx=theta;ny=rho;
ntheta=x;nrho=y;

%X=reshape(x,[1 nx*ny]);
%Y=reshape(y,[1 nx*ny]);
THETA=reshape(theta,[1 ntheta*nrho]);
RHO=reshape(rho,[1 ntheta*nrho]);
%del=griddata_preprocess(Y,X,yi,xi',varargin{:});
del=griddata_preprocess(RHO,THETA,rhoi,thetai',varargin{:});

for k=1:nz;
 C=reshape(c(:,:,k),[1 ntheta*nrho]);
z(:,:,k)=griddata(RHO,THETA,C,rhoi,thetai',varargin{:});
%z(:,:,k)=griddata(Y,X,C,yi,xi',varargin{:});
% z(:,:,k)=griddata_fast(del,[C C(il) C(ig)],varargin{:});
end % k

% Split vertical and time dimensions
if size(NN,2)>2
z=reshape(z,[size(z,1) size(z,2) NN(3:end)]);
end
1	function [z] = cart2cyl(c,thetai,rhoi,varargin)
2	% z=cart2cyl(c,xi,yi);
3	%
4
5	NN=size(c);
6	%[theta rho nz]=size(c);
7	[x y nz]=size(c);
8	%[RHO,THETA] = meshgrid(1:rho,-pi+2pi/theta:2pi/theta:pi);
9	%[Y,X] = meshgrid(-(x-1)/2:(x-1)/2,-(y-1)/2:(y-1)/2);
10	%stepx=(2x+1)/(2x);
11	%stepy=(2y+1)/(2y);
12	stepx=(x+1)/(x);
13	stepy=(y+1)/(y);
14	[Y,X] = meshgrid(-(x)/2:stepx:(x)/2,-(y)/2:stepy:(y)/2);
15	%[Y,X] = meshgrid(x,y);
16	%[Y,X] = meshgrid(-(x)/2:stepx:(x)/2+stepx,-(y)/2:stepy:(y)/2+stepy);
17	%[x,y] = pol2cart(THETA,RHO);
18	[theta,rho] = cart2pol(X,Y);
19	%theta=(theta./(pi2)+0.5).size(thetai,2);
20	%theta=theta.2((size(thetai,2)+1)/size(thetai,2));
21	%theta=(theta./(pi2)+0.5).(size(thetai,2)+1);
22	%theta=(theta./(pi2)+0.5).(size(thetai,2));
23	theta=(theta./(pi2)+0.5).(size(thetai,2));
24	%theta=(theta./pi).*size(thetai,2);
25	%theta=(theta./(pi2)).size(thetai,2);
26	%rho=max(rhoi)*rho/((x-1)/2);
27	rho=max(rhoi)*rho/((x)/2);
28	%theta=rot90(theta.*180./pi,-1);
29	%[nx ny nz]=size(c);
30	%nx=theta;ny=rho;
31	ntheta=x;nrho=y;
32
33	%X=reshape(x,[1 nx*ny]);
34	%Y=reshape(y,[1 nx*ny]);
35	THETA=reshape(theta,[1 ntheta*nrho]);
36	RHO=reshape(rho,[1 ntheta*nrho]);
37	%del=griddata_preprocess(Y,X,yi,xi',varargin{:});
38	del=griddata_preprocess(RHO,THETA,rhoi,thetai',varargin{:});
39
40	for k=1:nz;
41	C=reshape(c(:,:,k),[1 ntheta*nrho]);
42	z(:,:,k)=griddata(RHO,THETA,C,rhoi,thetai',varargin{:});
43	%z(:,:,k)=griddata(Y,X,C,yi,xi',varargin{:});
44	% z(:,:,k)=griddata_fast(del,[C C(il) C(ig)],varargin{:});
45	end % k
46
47	% Split vertical and time dimensions
48	if size(NN,2)>2
49	z=reshape(z,[size(z,1) size(z,2) NN(3:end)]);
50	end