/**
* Return SDO_ELEM_INFO array for geometry
*
* <pre><code><b>
* # Name Meaning</b>
* 0 SDO_STARTING_OFFSET Offsets start at one
* 1 SDO_ETYPE Describes how ordinates are ordered
* 2 SDO_INTERPRETATION SDO_ETYPE: 4, 1005, or 2005
* Number of triplets involved in compound geometry
*
* SDO_ETYPE: 1, 2, 1003, or 2003
* Describes ordering of ordinates in geometry
* </code></pre>
*
* <p>
* For compound elements (SDO_ETYPE values 4 and 5) the last element of one
* is the first element of the next.
* </p>
*
* @param geom Geometry being represented
*
* @return Descriptionof Ordinates representation
*/
private int[] ElemInfo(IGeometry geom, SdoGTemplate gtype)
{
var list = new LinkedList <int>();
ElemInfo(list, geom, 1, gtype);
int[] array = new int[list.Count];
int offset = 0;
foreach (var i in list)
{
array[offset++] = i;
}
return(array);
}
/**
* Add to SDO_ELEM_INFO list for geometry and GTYPE.
*
* @param elemInfoList List used to gather SDO_ELEM_INFO
* @param geom Geometry to encode
* @param sOffSet Starting offset in SDO_ORDINATES
*
* @throws IllegalArgumentException If geom cannot be encoded by ElemInfo
*/
private void ElemInfo(LinkedList <int> elemInfoList, IGeometry geom, int sOffSet, SdoGTemplate gtype)
{
switch (gtype - ((int)gtype / 100) * 100) // removes right two digits
{
case SdoGTemplate.Coordinate:
addInt(elemInfoList, sOffSet);
addInt(elemInfoList, (int)SdoEType.Coordinate);
addInt(elemInfoList, 1); // INTERPRETATION single point
return;
case SdoGTemplate.MultiPoint:
var points = (IMultiPoint)geom;
addInt(elemInfoList, sOffSet);
addInt(elemInfoList, (int)SdoEType.Coordinate);
addInt(elemInfoList, ElemInfoInterpretation(points, SdoEType.Coordinate));
return;
case SdoGTemplate.Line:
addInt(elemInfoList, sOffSet);
addInt(elemInfoList, (int)SdoEType.Line);
addInt(elemInfoList, 1); // INTERPRETATION straight edges
return;
case SdoGTemplate.MultiLine:
var lines = (IMultiLineString)geom;
ILineString line;
int offset = sOffSet;
int dim = (int)gtype / 1000;
int len = dim + ((int)gtype - dim * 1000) / 100;
for (int i = 0; i < lines.NumGeometries; i++)
{
line = (ILineString)lines.GetGeometryN(i);
addInt(elemInfoList, offset);
addInt(elemInfoList, (int)SdoEType.Line);
addInt(elemInfoList, 1); // INTERPRETATION straight edges
offset += (line.NumPoints * len);
}
return;
case SdoGTemplate.Polygon:
var polygon = (IPolygon)geom;
int holes = polygon.NumInteriorRings;
if (holes == 0)
{
addInt(elemInfoList, sOffSet);
addInt(elemInfoList, (int)ElemInfoEType(polygon));
addInt(elemInfoList, ElemInfoInterpretation(polygon, SdoEType.PolygonExterior));
return;
}
dim = (int)gtype / 1000;
len = dim + ((int)gtype - dim * 1000) / 100;
offset = sOffSet;
ILineString ring;
ring = polygon.ExteriorRing;
addInt(elemInfoList, offset);
addInt(elemInfoList, (int)ElemInfoEType(polygon));
addInt(elemInfoList, ElemInfoInterpretation(polygon, SdoEType.PolygonExterior));
offset += (ring.NumPoints * len);
for (int i = 1; i <= holes; i++)
{
ring = polygon.GetInteriorRingN(i - 1);
addInt(elemInfoList, offset);
addInt(elemInfoList, (int)SdoEType.PolygonInterior);
addInt(elemInfoList, ElemInfoInterpretation(ring, SdoEType.PolygonInterior));
offset += (ring.NumPoints * len);
}
return;
case SdoGTemplate.MultiPolygon:
var polys = (IMultiPolygon)geom;
IPolygon poly;
offset = sOffSet;
dim = (int)gtype / 1000;
len = dim + ((int)gtype - dim * 1000) / 100;
for (int i = 0; i < polys.NumGeometries; i++)
{
poly = (IPolygon)polys.GetGeometryN(i);
ElemInfo(elemInfoList, poly, offset, GType(poly));
if (IsRectangle(poly))
{
offset += (2 * len);
}
else
{
offset += (poly.NumPoints * len);
}
}
return;
case SdoGTemplate.Collection:
var geoms = (IGeometryCollection)geom;
offset = sOffSet;
dim = (int)gtype / 1000;
len = dim + ((int)gtype - dim * 1000) / 100;
for (int i = 0; i < geoms.NumGeometries; i++)
{
geom = geoms.GetGeometryN(i);
// MD 20/3/07 modified to provide gType of component geometry
ElemInfo(elemInfoList, geom, offset, GType(geom));
if (geom is IPolygon && IsRectangle((IPolygon)geom))
{
offset += (2 * len);
}
else
{
offset += (geom.NumPoints * len);
}
}
return;
}
throw new ArgumentException("Cannot encode JTS "
+ geom.GeometryType + " as SDO_ELEM_INFO "
+ "(Limitied to Point, Line, Polygon, GeometryCollection, MultiPoint,"
+ " MultiLineString and MultiPolygon)");
}
/**
* Add to SDO_ELEM_INFO list for geometry and GTYPE.
*
* @param elemInfoList List used to gather SDO_ELEM_INFO
* @param geom Geometry to encode
* @param sOffSet Starting offset in SDO_ORDINATES
*
* @throws IllegalArgumentException If geom cannot be encoded by ElemInfo
*/
private void ElemInfo(LinkedList<int> elemInfoList, IGeometry geom, int sOffSet, SdoGTemplate gtype) {
switch (gtype - ((int)gtype/100) * 100) { // removes right two digits
case SdoGTemplate.Coordinate:
addInt(elemInfoList, sOffSet);
addInt(elemInfoList, (int)SdoEType.Coordinate);
addInt(elemInfoList, 1); // INTERPRETATION single point
return;
case SdoGTemplate.MultiPoint:
var points = (IMultiPoint) geom;
addInt(elemInfoList, sOffSet);
addInt(elemInfoList, (int)SdoEType.Coordinate);
addInt(elemInfoList, ElemInfoInterpretation(points, SdoEType.Coordinate));
return;
case SdoGTemplate.Line:
addInt(elemInfoList, sOffSet);
addInt(elemInfoList, (int)SdoEType.Line);
addInt(elemInfoList, 1); // INTERPRETATION straight edges
return;
case SdoGTemplate.MultiLine:
var lines = (IMultiLineString) geom;
ILineString line;
int offset = sOffSet;
int dim = (int)gtype/1000;
int len = dim + ((int)gtype-dim*1000)/100;
for (int i = 0; i < lines.NumGeometries; i++) {
line = (ILineString) lines.GetGeometryN(i);
addInt(elemInfoList, offset);
addInt(elemInfoList, (int)SdoEType.Line);
addInt(elemInfoList, 1); // INTERPRETATION straight edges
offset += (line.NumPoints * len);
}
return;
case SdoGTemplate.Polygon:
var polygon = (IPolygon)geom;
int holes = polygon.NumInteriorRings;
if (holes == 0) {
addInt(elemInfoList, sOffSet);
addInt(elemInfoList, (int)ElemInfoEType(polygon));
addInt(elemInfoList, ElemInfoInterpretation(polygon, SdoEType.PolygonExterior));
return;
}
dim = (int)gtype/1000;
len = dim + ((int)gtype-dim*1000)/100;
offset = sOffSet;
ILineString ring;
ring = polygon.ExteriorRing;
addInt(elemInfoList, offset);
addInt(elemInfoList, (int)ElemInfoEType(polygon));
addInt(elemInfoList, ElemInfoInterpretation(polygon, SdoEType.PolygonExterior));
offset += (ring.NumPoints * len);
for (int i = 1; i <= holes; i++) {
ring = polygon.GetInteriorRingN(i - 1);
addInt(elemInfoList, offset);
addInt(elemInfoList, (int)SdoEType.PolygonInterior);
addInt(elemInfoList, ElemInfoInterpretation(ring, SdoEType.PolygonInterior));
offset += (ring.NumPoints * len);
}
return;
case SdoGTemplate.MultiPolygon:
var polys = (IMultiPolygon) geom;
IPolygon poly;
offset = sOffSet;
dim = (int)gtype/1000;
len = dim + ((int)gtype-dim*1000)/100;
for (int i = 0; i < polys.NumGeometries; i++) {
poly = (IPolygon) polys.GetGeometryN(i);
ElemInfo(elemInfoList, poly, offset, GType(poly));
if( IsRectangle( poly )){
offset += (2 * len);
}
else {
offset += (poly.NumPoints * len);
}
}
return;
case SdoGTemplate.Collection:
var geoms = (IGeometryCollection) geom;
offset = sOffSet;
dim = (int)gtype/1000;
len = dim + ((int)gtype-dim*1000)/100;
for (int i = 0; i < geoms.NumGeometries; i++) {
geom = geoms.GetGeometryN(i);
// MD 20/3/07 modified to provide gType of component geometry
ElemInfo(elemInfoList, geom, offset, GType(geom));
if( geom is IPolygon && IsRectangle( (IPolygon) geom )){
offset += (2 * len);
}
else {
offset += (geom.NumPoints * len);
}
}
return;
}
throw new ArgumentException("Cannot encode JTS "
+ geom.GeometryType + " as SDO_ELEM_INFO "
+ "(Limitied to Point, Line, Polygon, GeometryCollection, MultiPoint,"
+ " MultiLineString and MultiPolygon)");
}
/**
* Return SDO_ELEM_INFO array for geometry
*
* <pre><code><b>
* # Name Meaning</b>
* 0 SDO_STARTING_OFFSET Offsets start at one
* 1 SDO_ETYPE Describes how ordinates are ordered
* 2 SDO_INTERPRETATION SDO_ETYPE: 4, 1005, or 2005
* Number of triplets involved in compound geometry
*
* SDO_ETYPE: 1, 2, 1003, or 2003
* Describes ordering of ordinates in geometry
* </code></pre>
*
* <p>
* For compound elements (SDO_ETYPE values 4 and 5) the last element of one
* is the first element of the next.
* </p>
*
* @param geom Geometry being represented
*
* @return Descriptionof Ordinates representation
*/
private int[] ElemInfo(IGeometry geom, SdoGTemplate gtype) {
var list = new LinkedList<int>();
ElemInfo(list, geom, 1, gtype);
int[] array = new int[list.Count];
int offset = 0;
foreach (var i in list)
{
array[offset++] = i;
}
return array;
}