//***********************************************************************
// pj_gc_readentry()
//
// Read one catalog entry from the file.
//
// Format:
// gridname,ll_long,ll_lat,ur_long,ur_lat,priority,date
//***********************************************************************
static bool pj_gc_readentry(projCtx ctx, StreamReader fid, out PJ_GridCatalog.Entry entry)
{
entry = new PJ_GridCatalog.Entry();
string[] tokens = pj_gc_read_csv_line(ctx, fid);
if (tokens == null || tokens.Length < 5)
{
if (tokens.Length != 0)
{
Proj.pj_log(ctx, PJ_LOG.ERROR, "Short line in grid catalog.");
}
return(true);
}
entry.definition = tokens[0];
entry.region.ll_long = Proj.dmstor_ctx(ctx, tokens[1]);
entry.region.ll_lat = Proj.dmstor_ctx(ctx, tokens[2]);
entry.region.ur_long = Proj.dmstor_ctx(ctx, tokens[3]);
entry.region.ur_lat = Proj.dmstor_ctx(ctx, tokens[4]);
if (tokens.Length > 5)
{
int.TryParse(tokens[5], out entry.priority); // defaults to zero
}
if (tokens.Length > 6)
{
entry.date = pj_gc_parsedate(ctx, tokens[6]);
}
return(false);
}
//**********************************************************************
// pj_c_findgrid()
//**********************************************************************
public static PJ_GRIDINFO pj_gc_findgrid(projCtx ctx, PJ_GridCatalog catalog, bool after, LP location, double date, ref PJ_Region optimal_region, ref double grid_date)
{
for (int i = 0; i < catalog.entries.Count; i++)
{
PJ_GridCatalog.Entry entry = catalog.entries[i];
if ((after && entry.date < date) || (!after && entry.date > date))
{
continue;
}
if (location.lam < entry.region.ll_long || location.lam > entry.region.ur_long ||
location.phi < entry.region.ll_lat || location.phi > entry.region.ur_lat)
{
continue;
}
if (entry.available == -1)
{
continue;
}
grid_date = entry.date;
if (entry.gridinfo == null)
{
int grid_count;
PJ_GRIDINFO[] gridlist = pj_gridlist_from_nadgrids(ctx, entry.definition, out grid_count);
if (grid_count == 1)
{
entry.gridinfo = gridlist[0];
}
}
return(entry.gridinfo);
}
grid_date = 0.0;
optimal_region = new PJ_Region();
return(null);
}
