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);
}
/// <summary>
/// Setup the underlying CoreXDotNet singleton management classes.
/// </summary>
private void SetupTGL()
{
var xmlFilePath = Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location), "CoordSystemDatabase.xml");
if (!File.Exists(xmlFilePath))
{
throw new Exception($"Failed to find TGL CSD database file '{xmlFilePath}'.");
}
using var reader = new StreamReader(xmlFilePath);
var xmlData = reader.ReadToEnd();
CsdManagement.csmLoadCoordinateSystemDatabase(xmlData)
.Validate($"attempting to load coordinate system database '{xmlFilePath}'");
_log.LogInformation($"CoreX {nameof(SetupTGL)}: GeodeticDatabasePath='{GeodeticDatabasePath}'");
if (string.IsNullOrEmpty(GeodeticDatabasePath))
{
throw new Exception("Environment variable TGL_GEODATA_PATH must be set to the Geodetic data folder.");
}
if (!Directory.Exists(GeodeticDatabasePath))
{
_log.LogInformation($"Failed to find directory '{GeodeticDatabasePath}' defined by environment variable TGL_GEODATA_PATH.");
}
else
{
CoreXGeodataLogger.DumpGeodataFiles(_log, GeodeticDatabasePath);
}
CsdManagement.csmSetGeodataPath(GeodeticDatabasePath);
GeodeticX.geoSetGeodataPath(GeodeticDatabasePath);
}
private static bool ValidateCsib(string csib)
{
var sb = new StringBuilder();
var bytes = Encoding.ASCII.GetBytes(csib);
for (var i = 0; i < bytes.Length; i++)
{
sb.Append(bytes[i]).Append(' ');
}
var blocks = sb.ToString().TrimEnd().Split(' ');
var data = new sbyte[blocks.Length];
var index = 0;
foreach (var b in blocks)
{
data[index++] = (sbyte)Convert.ToByte(b);
}
using var csmCsibData = new CSMCsibBlobContainer(data);
using var csFromCSIB = new CSMCoordinateSystemContainer();
lock (TGLLock.CsdManagementLock)
{
CsdManagement.csmImportCoordSysFromCsib(csmCsibData, csFromCSIB)
.Validate("attempting to import coordinate system from CSMCsibBlobContainer");
}
return(true);
}
private string GetCSIBFromCSD(ICoordinateSystem coordinateSystem)
{
using var retStructFromICoordinateSystem = new CSMCsibBlobContainer();
lock (TGLLock.CsdManagementLock)
{
CsdManagement.csmGetCSIBFromCoordinateSystem(coordinateSystem, false, Utils.FileListCallBack, Utils.EmbeddedDataCallback, retStructFromICoordinateSystem)
.Validate("attempting to get CSMCsibBlobContainer from ICoordinateSystem");
}
return(GetCSIB(retStructFromICoordinateSystem));
}
/// <inheritdoc/>
private ICoordinateSystem GetDatumBySystemId(int datumSystemId)
{
using var datumContainer = new CSMCoordinateSystemContainer();
lock (TGLLock.CsdManagementLock)
{
CsdManagement.csmGetDatumFromCSDSelectionById((uint)datumSystemId, false, null, null, datumContainer)
.Validate($"attempting to retrieve datum {datumSystemId} by id.");
}
return(datumContainer.GetSelectedRecord());
}
/// <inheritdoc/>
public CoordinateSystem GetCSDFromCSIB(string csibString)
{
if (string.IsNullOrEmpty(csibString))
{
throw new ArgumentNullException(nameof(csibString), "CSIB string cannot be null");
}
using var csContainer = new CSMCoordinateSystemContainer();
var csmCsibData = CreateCSMCsibBlobContainer(csibString);
lock (TGLLock.CsdManagementLock)
{
CsdManagement.csmImportCoordSysFromCsib(csmCsibData, csContainer).
Validate("attempting to import coordinate system from CSIB");
}
return(ConvertICoordinateSystem(csContainer.GetSelectedRecord()));
}
/// <inheritdoc/>
public CoordinateSystem GetCSDFromDCFileContent(string dcFileStr)
{
if (string.IsNullOrEmpty(dcFileStr))
{
throw new ArgumentNullException(nameof(dcFileStr), "DC file string cannot be null");
}
// We may receive coordinate system file content that's been uploaded (encoded) from a web api, must decode first.
var fileContent = dcFileStr.DecodeFromBase64();
using var csContainer = new CSMCoordinateSystemContainer();
lock (TGLLock.CsdManagementLock)
{
CsdManagement.csmGetCoordinateSystemFromDCFile(fileContent, false, Utils.FileListCallBack, Utils.EmbeddedDataCallback, csContainer)
.Validate("attempting to retrieve the DC file's CSD");
}
return(ConvertICoordinateSystem(csContainer.GetSelectedRecord()));
}
private CSMCsibBlobContainer GetCSIBFromDCFileContent(string fileContent)
{
// We may receive coordinate system file content that's been uploaded (encoded) from a web api, must decode first.
fileContent = fileContent.DecodeFromBase64();
lock (TGLLock.CsdManagementLock)
{
var csmCsibBlobContainer = new CSMCsibBlobContainer();
// Slow, takes 2.5 seconds, need to speed up somehow?
var result = CsdManagement.csmGetCSIBFromDCFileData(
fileContent,
false,
Utils.FileListCallBack,
Utils.EmbeddedDataCallback,
csmCsibBlobContainer);
if (result != (int)csmErrorCode.cecSuccess)
{
switch ($"{result}")
{
case "cecGRID_FILE_OPEN_ERROR":
{
var geoidModelName = CalibrationFileHelper.GetGeoidModelName(Encoding.UTF8.GetBytes(fileContent));
throw new InvalidOperationException($"{nameof(GetCSIBFromDCFileContent)}: Geodata file not found for geoid model '{geoidModelName}'");
}
default:
{
throw new InvalidOperationException($"{nameof(GetCSIBFromDCFileContent)}: Get CSIB from file content failed, error {result}");
}
}
}
return(csmCsibBlobContainer);
}
}
/// <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");
}
}
