public void AddPoint(IPoint point)
{
if (point == null)
{
return;
}
if (_geometry is IPoint && _actPartNr == 0)
{
((IPoint)_geometry).X = point.X;
((IPoint)_geometry).Y = point.Y;
((IPoint)_geometry).Z = point.Z;
}
else if (_geometry is IMultiPoint)
{
IMultiPoint mPoint = (IMultiPoint)_geometry;
mPoint.AddPoint(point);
}
else if (_geometry is IPolyline)
{
IPolyline pLine = (IPolyline)_geometry;
if (_actPartNr >= pLine.PathCount)
{
gView.Framework.Geometry.Path path = new gView.Framework.Geometry.Path();
path.AddPoint(point);
pLine.AddPath(path);
_actPartNr = pLine.PathCount - 1;
}
else
{
pLine[_actPartNr].AddPoint(point);
}
}
else if (_geometry is IPolygon)
{
IPolygon poly = (IPolygon)_geometry;
if (_actPartNr >= poly.RingCount)
{
Ring ring = new Ring();
ring.AddPoint(point);
poly.AddRing(ring);
_actPartNr = poly.RingCount - 1;
}
else
{
poly[_actPartNr].AddPoint(point);
}
}
}
private void btnConstructMultiPoint_Click(object sender, EventArgs e)
{
if (gfactory == null)
gfactory = new GeometryFactory();
multiPoint = gfactory.CreateGeometry(gviGeometryType.gviGeometryMultiPoint, gviVertexAttribute.gviVertexAttributeZMID) as IMultiPoint;
if (multiPoint == null)
return;
point = gfactory.CreatePoint(gviVertexAttribute.gviVertexAttributeZMID); //point点属性必须与multiPoint相同，否则加不进去
for (int i = 0; i < 100; i++)
{
point.SetCoords(i, 2 * i, 3 * i, 0, i + 1);
multiPoint.AddPoint(point);
}
GeometryCollection geo = new GeometryCollection();
// Geometry属性
geo.Dimension = multiPoint.Dimension;
if (multiPoint.Envelope != null)
{
geo.MaxX = multiPoint.Envelope.MaxX;
geo.MaxY = multiPoint.Envelope.MaxY;
geo.MaxZ = multiPoint.Envelope.MaxZ;
geo.MinX = multiPoint.Envelope.MinX;
geo.MinY = multiPoint.Envelope.MinY;
geo.MinZ = multiPoint.Envelope.MinZ;
}
geo.GeometryType = multiPoint.GeometryType;
geo.IsEmpty = multiPoint.IsEmpty;
geo.IsValid = multiPoint.IsValid;
geo.VertexAttribute = multiPoint.VertexAttribute;
geo.HasId = multiPoint.HasId();
geo.HasM = multiPoint.HasM();
geo.HasZ = multiPoint.HasZ();
// GeometryCollection属性
geo.GeometryCount = multiPoint.GeometryCount;
geo.IsOverlap = multiPoint.IsOverlap;
this.propertyGrid1.SelectedObject = geo;
}
