public void MeasureBufferConstructionConstructBuffersPerformance()
{
const int iterations = 100;
IEnumerable <IGeometry> sources = GetBufferInput(iterations);
IBufferConstruction bufferConstruction = GetBufferConstruction();
IGeometryBag outputBag = new GeometryBagClass();
var watch = new Stopwatch();
watch.Start();
bufferConstruction.ConstructBuffers(
new GeometryEnumerator <IGeometry>(sources),
10, (IGeometryCollection)outputBag);
watch.Stop();
Assert.AreEqual(iterations, ((IGeometryCollection)outputBag).GeometryCount);
Console.Out.WriteLine(
"IBufferConstruction.ConstructBuffers: {0:N2} ms per geometry",
(double)watch.ElapsedMilliseconds / iterations);
}
private IList <IPolygon> BufferCore([NotNull] IEnumGeometry enumInput,
double distance)
{
// does no longer work as of 9.3.1 (implementing IGeometryCollection is NOT sufficient)
// BufferOutput output = new BufferOutput();
if (_properties.EndOption == esriBufferConstructionEndEnum.esriBufferFlat)
{
ResetCorruptFlatEndEnvironment();
}
IGeometryCollection outputCollection = PrepareTemplateBag();
try
{
try
{
_construction.ConstructBuffers(enumInput, distance,
outputCollection);
}
catch (Exception)
{
_msg.DebugFormat(
"Error buffering {0} geometries with distance {1}",
enumInput.Count, distance);
throw;
}
return(GetOutput(outputCollection));
}
finally
{
ResetTemplateBag();
}
}
public void LearningTestBufferConstructionHandlingEmptyInput()
{
var inputBag = new GeometryBagClass();
IBufferConstruction bufferConstruction = GetBufferConstruction();
IGeometryBag outputBag = new GeometryBagClass();
bufferConstruction.ConstructBuffers(inputBag, 10,
(IGeometryCollection)outputBag);
Assert.AreEqual(0, ((IGeometryCollection)outputBag).GeometryCount);
}