private static string GetVCSDisplayName([NotNull] ISpatialReference spatialReference)
{
IVerticalCoordinateSystem vcs =
SpatialReferenceUtils.GetVerticalCoordinateSystem(spatialReference);
return(vcs == null
? LocalizableStrings.QaSchemaSpatialReference_NotDefined
: vcs.Name);
}
public static ISpatialReference GetUniqueSpatialReference(
[NotNull] IEnumerable <ISpatialReference> spatialReferences,
bool requireEqualVerticalCoordinateSystems)
{
Assert.ArgumentNotNull(spatialReferences, nameof(spatialReferences));
IVerticalCoordinateSystem uniqueVcs = null;
ISpatialReference uniqueSref = null;
double bestResolution = double.MaxValue;
foreach (ISpatialReference sref in spatialReferences)
{
if (uniqueSref == null)
{
uniqueSref = sref;
bestResolution = SpatialReferenceUtils.GetXyResolution(uniqueSref);
}
else
{
if (requireEqualVerticalCoordinateSystems)
{
IVerticalCoordinateSystem vcs =
SpatialReferenceUtils.GetVerticalCoordinateSystem(sref);
if (vcs != null)
{
if (uniqueVcs == null)
{
uniqueVcs = vcs;
}
else
{
if (vcs != uniqueVcs &&
!((IClone)uniqueVcs).IsEqual((IClone)vcs))
{
throw new ArgumentException(
string.Format(
"Defined vertical coordinate systems are not equal: {0}, {1}",
vcs.Name, uniqueVcs.Name));
}
}
}
}
if (uniqueSref != sref)
{
var compareSpatialReferences =
(ICompareCoordinateSystems)uniqueSref;
if (!compareSpatialReferences.IsEqualNoVCS(sref))
{
throw new ArgumentException(
string.Format(
"Coordinate systems are not equal: {0}, {1}",
sref.Name, uniqueSref.Name));
}
// if the resolution is higher --> use as new unique
double resolution = SpatialReferenceUtils.GetXyResolution(sref);
if (resolution < bestResolution)
{
bestResolution = resolution;
uniqueSref = sref;
}
}
}
}
return(uniqueSref);
}
