How to get point ordinates in oracle spatial with oo4o and VC++

Question

Hi,
I need some help baddly.Would someone help me?
Now I need to get the point ordinates in a table called cities.I use oo4o C++ class library and VC++ 6.0 . In the table, the column name of SDO_GEOMETRY object
type is "goem". For the reason that the table is created for a point layer, all the point ordinates are stored in the SDO_POINT.
I read the ordinates in my program as below. But every time the final result of x,y,z are all be 0.000000000 . Although I checked it many times, I still couldn't found why.
So could some experts tell me the reason or show me how to do that?
Thanks in advanced.
ODatabase odb("", "scott", "tiger");
ODynaset odyn(odb, "SELECT * FROM CITIES");
if (odyn.IsOpen())
odyn.MoveFirst();
OObject geometry;
oresult ores = odyn.GetFieldValue("geom", &geometry);
if(ores==OCSUCCESS)
OObject sdopoint;
const char* attrname3=geometry.GetAttrName(3);
     geometry.GetAttrValue(attrname3, &sdopoint);
     const char* ittypename=sdopoint.GetTypeName();     
     int itnumber=sdopoint.GetCount();
     int attrtype=sdopoint.GetAttrType(1);
     const char* attrnameX=sdopoint.GetAttrName(1);
const char* attrnameY=sdopoint.GetAttrName(2);
     const char* attrnameZ=sdopoint.GetAttrName(3);
     double *x;
     double *y;
     double *z;
     sdopoint.GetAttrValue(attrnameX,x);
     sdopoint.GetAttrValue(attrnameY,y);
     sdopoint.GetAttrValue(attrnameZ,z);
}

Answer 1

Yes. I have tried your code and got the same result.
And I also tried to use SQL to get the result.But it
also failed.
I am intrested in this problem too.
Could some oo4o experts help me too?
jeff