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// AmrGridReader
#include "AmrGridReader.hh"
#include <stdio.h>
#include <stdlib.h>
// Other stuff
AmrGrid *AmrGridReader::getGridInfo(AmrGrid &g,int index){
g.dataveclen=1;
if(file.seek(index)<index)
return 0; // fail if index past end
IObase::DataType dt;
file.readInfo(dt,g.rank,g.dims);
g.datatype = dt;
g.nbytes = IObase::nBytes(dt,g.rank,g.dims);
// find the deepest level (finest time resolution)
// Attrib Names?
IObase::DataType atype;
int length;
int attrnum=file.readAttributeInfo("level",atype,length);
if(attrnum>=0){
int lev; // should be Int level
file.readAttribute(attrnum,&lev);
if(lev>g.maxlevel) g.maxlevel=lev;
g.level=lev;
}
// check for existence of attribute named "time_refinement"
attrnum=file.readAttributeInfo("time_refinement",atype,length);
// "time_refinement" exists, so lets read it into the member g.timerefinement
if(attrnum>=0){
file.readAttribute(attrnum,&(g.timerefinement));
}
// check for existence of the attribute named "spatial_refinement"
attrnum=file.readAttributeInfo("spatial_refinement",atype,length);
// it exists, so lets read it into the datastruct member g.spatialrefinement
if(attrnum>=0){
file.readAttribute(attrnum,&(g.spatialrefinement));
}
attrnum=file.readAttributeInfo("timestep",atype,length);
if(attrnum>=0){
file.readAttribute(attrnum,&(g.timestep));
}
attrnum=file.readAttributeInfo("origin",atype,length);
if(attrnum>=0)
file.readAttribute(attrnum,(g.origin));
attrnum=file.readAttributeInfo("delta",atype,length);
if(attrnum>=0)
file.readAttribute(attrnum,(g.delta));
attrnum=file.readAttributeInfo("min_ext",atype,length);
if(attrnum>=0)
file.readAttribute(attrnum,(g.minext));
attrnum=file.readAttributeInfo("max_ext",atype,length);
if(attrnum>=0)
file.readAttribute(attrnum,(g.maxext));
attrnum=file.readAttributeInfo("persistence",atype,length);
if(attrnum>=0){
file.readAttribute(attrnum,&(g.persistence));
g.maxtime = g.timestep + g.persistence;
}
attrnum=file.readAttributeInfo("iorigin",atype,length);
if(attrnum>=0)
file.readAttribute(attrnum,&(g.iorigin));
attrnum=file.readAttributeInfo("grid_placement_refinement",atype,length);
if(attrnum>=0)
file.readAttribute(attrnum,&(g.gridplacementrefinement));
g.data=0;
return &g;
} // done
AmrGrid *AmrGridReader::getGridData(AmrGrid &g,int index){
IObase::DataType atype;
if(g.data) free(g.data); g.data=0; // make certain it is empty first
g.data = malloc(g.nbytes);
file.seek(index);
file.readInfo(atype,g.rank,g.dims);
g.datatype=atype;
file.read(g.data);
return &g;
}
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