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defaults: PCS(hi): 1/10 mm; PCS(lo): 1 mm; GCS(hi): 1/10,000 arc-second; GCS(lo): 1/500 arc-second; UCS(hi): 1/10 mm (assumed); UCS(lo): 1 mm (assumed).
[Visual Basic .NET]
Public Sub SetDefaultXYResolution ( _
)
[C#] public void SetDefaultXYResolution ( );
[C++]
HRESULT SetDefaultXYResolution(
void
);
SetDefaultXYResolution recalculates the maximum x and y coordinates for the domain of the spatial reference in order to achieve a target resolution of 1 millimeter for low precision ProjectedCoordinateSystems or 1/10 millimeter for high precision. For high precision GeographicCoordinateSystems, the target resolution is 1/10,000 of an arc-second and the low precision target resolution is 1/500 of an arc-second. For UnknownCoordinateSystems, the high precision target resolution is 1/10 millimeter and the low precision target resolution is 1 millimeter. Resolutions are listed here in metric units but are converted to the units of the spatial reference by these methods.
Use the ISpatialReferenceResolution::XYResolution(False) property to specify the target resolution in units defined by the spatial reference.