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Commit 8c9d3d97 authored by Uwe Schulzweida's avatar Uwe Schulzweida
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Added function cdf_read_coordinates().

parent 39b217f3
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src/stream_cdf_i.c
View file @ 8c9d3d97
......@@ -2033,8 +2033,9 @@ void cdf_check_gridtype(int *gridtype, bool islon, bool islat, size_t xsize, siz
static
bool cdf_read_xcoord(struct cdfLazyGrid *restrict lazyGrid, ncdim_t *ncdims, ncvar_t *ncvar, int xvarid, ncvar_t *axisvar,
grid_t *grid, size_t *xsize, size_t ysize, int ntdims, size_t *start, size_t *count, bool *islon)
size_t *xsize, size_t ysize, int ntdims, size_t *start, size_t *count, bool *islon)
{
grid_t *grid = &lazyGrid->base;
bool skipvar = true;
*islon = axisvar->islon;
int ndims = axisvar->ndims;
......@@ -2082,8 +2083,9 @@ bool cdf_read_xcoord(struct cdfLazyGrid *restrict lazyGrid, ncdim_t *ncdims, ncv
static
bool cdf_read_ycoord(struct cdfLazyGrid *restrict lazyGrid, ncdim_t *ncdims, ncvar_t *ncvar, int yvarid, ncvar_t *axisvar,
grid_t *grid, size_t xsize, size_t *ysize, int ntdims, size_t *start, size_t *count, bool *islat)
size_t xsize, size_t *ysize, int ntdims, size_t *start, size_t *count, bool *islat)
{
grid_t *grid = &lazyGrid->base;
bool skipvar = true;
*islat = axisvar->islat;
int ndims = axisvar->ndims;
......@@ -2131,6 +2133,89 @@ bool cdf_read_ycoord(struct cdfLazyGrid *restrict lazyGrid, ncdim_t *ncdims, ncv
return false;
}
static
bool cdf_read_coordinates(struct cdfLazyGrid *restrict lazyGrid, ncvar_t *ncvar, ncvar_t *ncvars, ncdim_t *ncdims,
int timedimid, int *xvarid, int *yvarid, size_t *xsize, size_t *ysize, size_t *size)
{
static bool ltwarn = true;
grid_t *grid = &lazyGrid->base;
size_t start[3], count[3];
int ntdims = 0;
if ( *xvarid != UNDEFID && *yvarid != UNDEFID )
{
int ndims = ncvars[*xvarid].ndims;
if ( ndims != ncvars[*yvarid].ndims )
{
Warning("Inconsistent grid structure for variable %s!", ncvar->name);
ncvar->xvarid = *xvarid = UNDEFID;
ncvar->yvarid = *yvarid = UNDEFID;
}
if ( ndims > 1 )
{
if ( ndims <= 3 )
{
if ( ncvars[*xvarid].dimids[0] == timedimid && ncvars[*yvarid].dimids[0] == timedimid )
{
if ( ltwarn ) Warning("Time varying grids unsupported, using grid at time step 1!");
ltwarn = false;
ntdims = 1;
start[0] = start[1] = start[2] = 0;
count[0] = 1; count[1] = *ysize; count[ndims-1] = *xsize;
}
}
else
{
Warning("Unsupported grid structure for variable %s (grid dims > 2)!", ncvar->name);
ncvar->xvarid = *xvarid = UNDEFID;
ncvar->yvarid = *yvarid = UNDEFID;
}
}
}
if ( *xvarid != UNDEFID )
{
if ( (ncvars[*xvarid].ndims - ntdims) > 2 )
{
Warning("Coordinate variable %s has to many dimensions (%d), skipped!", ncvars[*xvarid].name, ncvars[*xvarid].ndims);
//ncvar->xvarid = UNDEFID;
*xvarid = UNDEFID;
}
}
if ( *yvarid != UNDEFID )
{
if ( (ncvars[*yvarid].ndims - ntdims) > 2 )
{
Warning("Coordinate variable %s has to many dimensions (%d), skipped!", ncvars[*yvarid].name, ncvars[*yvarid].ndims);
//ncvar->yvarid = UNDEFID;
*yvarid = UNDEFID;
}
}
bool islon = false, islat = false;
if ( *xvarid != UNDEFID )
if ( cdf_read_xcoord(lazyGrid, ncdims, ncvar, *xvarid, &ncvars[*xvarid],
xsize, *ysize, ntdims, start, count, &islon) )
return true;
if ( *yvarid != UNDEFID )
if ( cdf_read_ycoord(lazyGrid, ncdims, ncvar, *yvarid, &ncvars[*yvarid],
*xsize, ysize, ntdims, start, count, &islat) )
return true;
if ( (int) *ysize == 0 ) *size = *xsize;
else if ( (int) *xsize == 0 ) *size = *ysize;
else if ( ncvar->gridtype == GRID_UNSTRUCTURED ) *size = *xsize;
else *size = (*xsize)*(*ysize);
if ( ncvar->gridtype == UNDEFID || ncvar->gridtype == GRID_GENERIC )
cdf_check_gridtype(&ncvar->gridtype, islon, islat, *xsize, *ysize, grid);
return false;
}
static
bool cdf_set_unstructured_par(ncvar_t *ncvar, grid_t *grid, int xdimid, int ydimid, unsigned char *uuidOfHGrid)
{
......@@ -2332,7 +2417,6 @@ void cdf_define_all_grids(stream_t *streamptr, int vlistID, ncdim_t *ncdims, int
#else
bool testproj = false;
#endif
bool ltwarn = true;
struct cdfLazyGrid *restrict lazyGrid = NULL, *restrict lazyProj = NULL;
#define grid (&lazyGrid->base)
#define proj (&lazyProj->base)
......@@ -2342,7 +2426,6 @@ void cdf_define_all_grids(stream_t *streamptr, int vlistID, ncdim_t *ncdims, int
ncvar_t *ncvar = &ncvars[ncvarid];
if ( ncvar->isvar && ncvar->gridID == UNDEFID )
{
bool islon = false, islat = false;
int gmapvarid = ncvar->gmapid;
bool lproj = gmapvarid != UNDEFID;
int ndims = ncvar->ndims;
......@@ -2409,78 +2492,10 @@ void cdf_define_all_grids(stream_t *streamptr, int vlistID, ncdim_t *ncdims, int
}
else
{
size_t start[3], count[3];
int ntdims = 0;
if ( xvarid != UNDEFID && yvarid != UNDEFID )
{
int ndims = ncvars[xvarid].ndims;
if ( ndims != ncvars[yvarid].ndims )
{
Warning("Inconsistent grid structure for variable %s!", ncvar->name);
ncvar->xvarid = xvarid = UNDEFID;
ncvar->yvarid = yvarid = UNDEFID;
}
if ( ndims > 1 )
{
if ( ndims <= 3 )
{
if ( ncvars[xvarid].dimids[0] == timedimid && ncvars[yvarid].dimids[0] == timedimid )
{
if ( ltwarn ) Warning("Time varying grids unsupported, using grid at time step 1!");
ltwarn = false;
ntdims = 1;
start[0] = start[1] = start[2] = 0;
count[0] = 1; count[1] = ysize; count[ndims-1] = xsize;
}
}
else
{
Warning("Unsupported grid structure for variable %s (grid dims > 2)!", ncvar->name);
ncvar->xvarid = xvarid = UNDEFID;
ncvar->yvarid = yvarid = UNDEFID;
}
}
}
if ( xvarid != UNDEFID )
{
if ( (ncvars[xvarid].ndims - ntdims) > 2 )
{
Warning("Coordinate variable %s has to many dimensions (%d), skipped!", ncvars[xvarid].name, ncvars[xvarid].ndims);
//ncvar->xvarid = UNDEFID;
xvarid = UNDEFID;
}
}
if ( yvarid != UNDEFID )
{
if ( (ncvars[yvarid].ndims - ntdims) > 2 )
{
Warning("Coordinate variable %s has to many dimensions (%d), skipped!", ncvars[yvarid].name, ncvars[yvarid].ndims);
//ncvar->yvarid = UNDEFID;
yvarid = UNDEFID;
}
}
if ( xvarid != UNDEFID )
if ( cdf_read_xcoord(lazyGrid, ncdims, ncvar, xvarid, &ncvars[xvarid],
grid, &xsize, ysize, ntdims, start, count, &islon) )
continue;
if ( yvarid != UNDEFID )
if ( cdf_read_ycoord(lazyGrid, ncdims, ncvar, yvarid, &ncvars[yvarid],
grid, xsize, &ysize, ntdims, start, count, &islat) )
continue;
if ( (int) ysize == 0 ) size = xsize;
else if ( (int) xsize == 0 ) size = ysize;
else if ( ncvar->gridtype == GRID_UNSTRUCTURED ) size = xsize;
else size = xsize*ysize;
}
if ( ncvar->gridtype == UNDEFID || ncvar->gridtype == GRID_GENERIC )
cdf_check_gridtype(&ncvar->gridtype, islon, islat, xsize, ysize, grid);
if ( cdf_read_coordinates(lazyGrid, ncvar, ncvars, ncdims,
timedimid, &xvarid, &yvarid, &xsize, &ysize, &size) )
continue;
}
switch (ncvar->gridtype)
{
......
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