PointFromShape takes a shape of type point and a spatial reference system identity to return a point.
Syntax
db2gse.PointFromShape(db2gse.ShapePoint blob(1M), srs db2gse.coordref)
Return type
db2gse.ST_Point
Examples
The program fragment populates the HAZARDOUS_SITES table.
The hazardous sites are stored in the HAZARDOUS_SITES table created with the CREATE TABLE statement that follows. The location column, defined as a point, stores a location that is the geographic center of each hazardous site.
CREATE TABLE HAZARDOUS_SITES (site_id integer,
name varchar(128),
location db2gse.ST_Point);
/* Create the SQL insert statement to populate the site_id, name and
location. The question marks are parameter markers that indicate the
site_id, name and location values that will be retrieved at runtime. */
strcpy (shp_sql,"insert into HAZARDOUS_SITES (site_id, name, location)
values (?,?, db2gse.PointFromShape (cast(? as blob(1m)), db2gse.coordref()..srid(0)))");
/* Allocate memory for the SQL statement handle and associate the
statement handle with the connection handle. */
rc = SQLAllocStmt (handle, &hstmt);
/* Prepare the SQL statement for execution. */
rc = SQLPrepare (hstmt, (unsigned char *)shp_sql, SQL_NTS);
/* Bind the site_id integer value to the first parameter. */
pcbvalue1 = 0;
rc = SQLBindParameter (hstmt, 1, SQL_PARAM_INPUT, SQL_C_INTEGER,
SQL_INTEGER, 0, 0, &site_id, 0, &pcbvalue1);
/* Bind the name varchar value to the second parameter. */
pcbvalue2 = name_len;
rc = SQLBindParameter (hstmt, 2, SQL_PARAM_INPUT, SQL_C_CHAR,
SQL_CHAR, 0, 0, name, 0, &pcbvalue2);
/* Bind the location shape to the third parameter. */
pcbvalue3 = location_len;
rc = SQLBindParameter (hstmt, 3, SQL_PARAM_INPUT, SQL_C_BINARY,
SQL_BLOB, location_len, 0, location_shape, location_len, &pcbvalue3);
/* Execute the insert statement. */
rc = SQLExecute (hstmt);