private AllPointsCacheData CalculateAllPointsCacheData()
{
Contract.Ensures(Contract.Result <AllPointsCacheData>() != null);
Contract.Ensures(_pointList.Count <= 0 || Contract.Result <AllPointsCacheData>().CalculatedMbr != null);
return(new AllPointsCacheData {
CalculatedMbr = Mbr.Create(_pointList),
AreaSumValue = CalculateAreaSumValue()
});
}
/// <summary>
/// Calculates a minimum bounding rectangle for this polygon.
/// </summary>
/// <returns>A minimum bounding rectangle.</returns>
public Mbr GetMbr()
{
Contract.Ensures(Count != 0 || Contract.Result <Mbr>() == null);
Mbr mbr = null;
for (var i = 0; i < Count; i++)
{
Contract.Assume(this[i] != null);
var thisMbr = this[i].GetMbr();
mbr = mbr == null
? thisMbr
: mbr.Encompass(thisMbr);
}
return(mbr);
}
/// <summary>
/// Calculates a minimum bounding rectangle for this line string.
/// </summary>
/// <returns>A minimum bounding rectangle.</returns>
public Mbr GetMbr()
{
return(Mbr.Create(this));
}