public Datum[] GetDatums()
{
using var returnListStruct = new CSMStringListContainer();
lock (TGLLock.CsdManagementLock)
{
var resultCode = CsdManagement.csmGetListOfDatums(returnListStruct);
if (resultCode == csmErrorCode.cecSuccess)
{
var datums = returnListStruct.stringList.Split(new[] { CsdManagement.STRING_SEPARATOR }, StringSplitOptions.RemoveEmptyEntries)
.Select(s => new Datum(
datumSystemId: int.Parse(s.Split(CsdManagement.ITEM_SEPERATOR)[0]),
datumType: int.Parse(s.Split(CsdManagement.ITEM_SEPERATOR)[1]),
datumName: s.Split(CsdManagement.ITEM_SEPERATOR)[3]));
if (datums == null)
{
throw new Exception("Error attempting to retrieve list of datums, null result");
}
if (!datums.Any())
{
throw new Exception("No datums found");
}
return(datums.ToArray());
}
}
return(null);
}
/// <inheritdoc/>
public string GetCSIBFromCSDSelection(string zoneGroupNameString, string zoneNameQueryString)
{
lock (TGLLock.CsdManagementLock)
{
using var retStructZoneGroups = new CSMStringListContainer();
CsdManagement.csmGetListOfZoneGroups(retStructZoneGroups)
.Validate("attempting to retrieve list of zone groups");
var zoneGroups = retStructZoneGroups
.stringList
.Split(new[] { CsdManagement.STRING_SEPARATOR }, StringSplitOptions.RemoveEmptyEntries)
.Select(s => s.Split(CsdManagement.ITEM_SEPERATOR)[1]);
if (!zoneGroups.Any())
{
throw new Exception("The count of zone groups should be greater than 0");
}
var zoneGroupName = zoneGroupNameString.Substring(zoneGroupNameString.IndexOf(",") + 1);
using var retStructListOfZones = new CSMStringListContainer();
CsdManagement.csmGetListOfZones(zoneGroupName, retStructListOfZones)
.Validate($"attempting to retrieve list of zones for group '{zoneGroupName}'");
var zones = retStructListOfZones
.stringList
.Split(new[] { CsdManagement.STRING_SEPARATOR }, StringSplitOptions.RemoveEmptyEntries);
if (zones.Length == 0)
{
throw new Exception($"The count of zones in {zoneGroupName} should be greater than 0");
}
var zoneElement = Array.Find(zones, element => element.EndsWith(zoneNameQueryString, StringComparison.OrdinalIgnoreCase));
if (string.IsNullOrEmpty(zoneElement))
{
throw new Exception($"Could not find '{zoneNameQueryString}' in the list of zones for group '{zoneGroupName}'");
}
var zoneName = zoneElement.Substring(zoneElement.IndexOf(",") + 1);
var items = zoneElement.Split(CsdManagement.ITEM_SEPERATOR);
var zoneId = uint.Parse(items[0]);
using var retCsStruct = new CSMCoordinateSystemContainer();
CsdManagement.csmGetCoordinateSystemFromCSDSelectionDefaults(zoneGroupName, zoneName, false, Utils.FileListCallBack, Utils.EmbeddedDataCallback, retCsStruct)
.Validate($"attempting to retrieve coordinate system from CSD selection; zone group: '{zoneGroupName}', zone: {zoneName}");
var coordinateSystem = retCsStruct.GetSelectedRecord();
// Many of our test calibration files fail validation; is this expected or do we have a parsing problem?
// This validation logic was taken from TGL unit test classes, may not be correctly implemented.
// coordinateSystem.Validate();
var zoneID = unchecked ((uint)coordinateSystem.ZoneSystemId());
var datumID = unchecked ((uint)coordinateSystem.DatumSystemId());
var geoidID = unchecked ((uint)coordinateSystem.GeoidSystemId());
if (coordinateSystem.DatumSystemId() > 0)
{
return(GetCSIBFromCSD(coordinateSystem));
}
else
{
var datumResult = GetDatumBySystemId(1034);
using var csibFromIDs = new CSMCsibBlobContainer();
CsdManagement.csmGetCSIBFromCSDSelectionById(zoneID, datumId: 1034, geoidId: 0, false, Utils.FileListCallBack, Utils.EmbeddedDataCallback, csibFromIDs);
var csib = GetCSIB(csibFromIDs);
if (!string.IsNullOrEmpty(csib))
{
return(csib);
}
}
throw new Exception($"Error attempting to retrieve coordinate system from CSD selection; zone group: '{zoneGroupName}', zone: {zoneName}, no datum found");
}
}
