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This document is archived and information here might be outdated. Recommended version. |
IGeometryBridge.QueryGeometries Method (ArcObjects .NET 10.8 SDK)
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This document is archived and information here might be outdated. Recommended version. |
Populates the array with references to a sub-sequence of geometries.
[Visual Basic .NET] Public Sub QueryGeometries ( _ ByVal pGeometryCollection As IGeometryCollection, _ ByVal Index As Integer, _ ByRef geometries As IGeometry[] _ )
[C#] public void QueryGeometries ( IGeometryCollection pGeometryCollection, int Index, ref IGeometry[] geometries );
[C++]
HRESULT QueryGeometries(
IGeometryCollection* pGeometryCollection,
long Index,
SAFEARRAY(IGeometry)** geometries
);
[C++] Parameters pGeometryCollection [in]
pGeometryCollection is a parameter of type IGeometryCollection* Index
Index is a parameter of type long geometries [in, out]
geometries is a parameter of type SAFEARRAY(IGeometry*)*
All development languages compatible version of IGeometryCollection::QueryGeometries.
public void QueryGeometries()
{
int inputLength = 10;
IGeometry[] inputGeometryArray = new IGeometry[inputLength];
for (int i = 0; i < inputLength; i++)
{
IPoint point = new PointClass();
point.PutCoords(i * 10, i * 10);
inputGeometryArray[i] = point as IGeometry;
}
IGeometryBridge geometryBridge = new GeometryEnvironmentClass();
IGeometryCollection geometryCollection = new MultipointClass();
//add geometries
geometryBridge.AddGeometries(geometryCollection, ref inputGeometryArray);
//query geometries starting from position 1
int startIndex = 5;
IGeometry[] outputGeometryArray = new IGeometry[inputLength - startIndex];
for (int i = 0; i < outputGeometryArray.Length; i++)
{
outputGeometryArray[i] = new PointClass() as IGeometry;
}
geometryBridge.QueryGeometries(geometryCollection, startIndex, ref outputGeometryArray);
for (int i = 0; i < outputGeometryArray.Length; i++)
{
//we know that the Geometry is a Point
IPoint currentPoint = outputGeometryArray[i] as IPoint;
System.Windows.Forms.MessageBox.Show("X = " + currentPoint.X + ", Y = " + currentPoint.Y);
}
}