public void IsReliableTest() { var crsTransformationAdapterCompositeFactory = CrsTransformationAdapterCompositeFactory.Create(); CrsTransformationAdapterComposite crsTransformationComposite = crsTransformationAdapterCompositeFactory.CreateCrsTransformationAverage(); var children = crsTransformationComposite.TransformationAdapterChildren; Assert.AreEqual(3, children.Count); CrsCoordinate wgs84coordinateInSweden = CrsCoordinateFactory.LatLon(59.31, 18.04); CrsTransformationResult resultWhenTransformingToSwedishCRS = crsTransformationComposite.Transform(wgs84coordinateInSweden, EpsgNumber.SWEDEN__SWEREF99_TM__3006); Assert.IsNotNull(resultWhenTransformingToSwedishCRS); Assert.IsTrue(resultWhenTransformingToSwedishCRS.IsSuccess); CrsTransformationResultStatistic crsTransformationResultStatistic = resultWhenTransformingToSwedishCRS.CrsTransformationResultStatistic; Assert.IsNotNull(crsTransformationResultStatistic); Assert.IsTrue(crsTransformationResultStatistic.IsStatisticsAvailable); int actualNumberOfResults = crsTransformationResultStatistic.NumberOfPotentiallySuccesfulResults; Assert.AreEqual( EXPECTED_NUMBER_OF_ADAPTER_LEAF_IMPLEMENTATIONS, actualNumberOfResults ); double actualMaxDiffXLongitude = crsTransformationResultStatistic.MaxDifferenceForXEastingLongitude; double actualMaxDiffYLatitude = crsTransformationResultStatistic.MaxDifferenceForYNorthingLatitude; double actualMaxDiffXorY = Math.Max(actualMaxDiffXLongitude, actualMaxDiffYLatitude); Assert.That(actualMaxDiffXorY, Is.LessThan(0.01)); Assert.IsTrue(resultWhenTransformingToSwedishCRS.IsReliable(actualNumberOfResults, actualMaxDiffXorY)); // assertFalse below since trying to require one more result than available Assert.IsFalse(resultWhenTransformingToSwedishCRS.IsReliable(actualNumberOfResults + 1, actualMaxDiffXorY)); // assertFalse below since trying to require too small maxdiff Assert.IsFalse(resultWhenTransformingToSwedishCRS.IsReliable(actualNumberOfResults, actualMaxDiffXorY - 0.00000000001)); }
public void CSharpeExampleCode() { int epsgWgs84 = EpsgNumber.WORLD__WGS_84__4326; int epsgSweRef = EpsgNumber.SWEDEN__SWEREF99_TM__3006; Assert.AreEqual(4326, epsgWgs84); Assert.AreEqual(3006, epsgSweRef); CrsCoordinate centralStockholmWgs84 = CrsCoordinateFactory.LatLon(59.330231, 18.059196, epsgWgs84); ICrsTransformationAdapter crsTransformationAdapter = CrsTransformationAdapterCompositeFactory.Create().CreateCrsTransformationMedian(); CrsTransformationResult centralStockholmResultSweRef = crsTransformationAdapter.Transform(centralStockholmWgs84, epsgSweRef); Assert.IsNotNull(centralStockholmResultSweRef); Assert.IsTrue(centralStockholmResultSweRef.IsSuccess); IList <CrsTransformationResult> transformationResultChildren = centralStockholmResultSweRef.TransformationResultChildren; // Reason for the below assertion with value 3 : // If the NuGet configuration includes all (currently three) adapter implementations, then the // above created 'Composite' implementation will below use all three 'leaf' implementations // and return a coordinate with a median longitude and a median latitude Assert.AreEqual(3, transformationResultChildren.Count); // Console.WriteLine(centralStockholmResultSweRef.OutputCoordinate); // Console output from the above code row: // CrsCoordinate(xEastingLongitude=674032.357177155, yNorthingLatitude=6580821.99121561, crsIdentifier=CrsIdentifier(crsCode='EPSG:3006', isEpsgCode=True, epsgNumber=3006)) var outputCoordinate = centralStockholmResultSweRef.OutputCoordinate; Assert.IsNotNull(outputCoordinate); Assert.AreEqual(674032.357177155, outputCoordinate.XEastingLongitude, SmallDeltaValue); Assert.AreEqual(6580821.99121561, outputCoordinate.YNorthingLatitude, SmallDeltaValue); CrsTransformationResultStatistic crsTransformationResultStatistic = centralStockholmResultSweRef.CrsTransformationResultStatistic; var medianCoordinate = crsTransformationResultStatistic.CoordinateMedian; // the median values have already been tested above since we used 'CreateCrsTransformationMedian' // for creating the main result. var averageCoordinate = crsTransformationResultStatistic.CoordinateAverage; Assert.AreEqual(674032.35716645606, averageCoordinate.XEastingLongitude, SmallDeltaValue); Assert.AreEqual(6580821.9921956062, averageCoordinate.YNorthingLatitude, SmallDeltaValue); Assert.IsTrue(crsTransformationResultStatistic.IsStatisticsAvailable); Assert.AreEqual(3, crsTransformationResultStatistic.NumberOfPotentiallySuccesfulResults); Assert.That(crsTransformationResultStatistic.MaxDifferenceForXEastingLongitude, Is.LessThan(0.01)); Assert.That(crsTransformationResultStatistic.MaxDifferenceForYNorthingLatitude, Is.LessThan(0.01)); // "Reliable True" below since there should be three sucesful results // and the absolute value for the difference between longitudes and longitudes // should be less than 0.01 Assert.IsTrue( centralStockholmResultSweRef.IsReliable( 3, // minimumNumberOfSuccesfulResults 0.01 // maxDeltaValueForXLongitudeAndYLatitude ) ); // "Reliable False" below because too extreme requirements of equal values for all the results // i.e. very small tolerance for differences Assert.IsFalse( centralStockholmResultSweRef.IsReliable( 3, // minimumNumberOfSuccesfulResults 0.000000000000000000001 // maxDeltaValueForXLongitudeAndYLatitude ) ); // "Reliable False" below because can not require 4 succesful values // when there are only 3 implementations Assert.IsFalse( centralStockholmResultSweRef.IsReliable( 4, // minimumNumberOfSuccesfulResults 0.01 // maxDeltaValueForXLongitudeAndYLatitude ) ); ICrsTransformationAdapter crsTransformationAdapterResultSource = centralStockholmResultSweRef.CrsTransformationAdapterResultSource; CrsTransformationAdapteeType adapteeType = crsTransformationAdapterResultSource.AdapteeType; Assert.AreEqual(CrsTransformationAdapteeType.COMPOSITE_MEDIAN, adapteeType); var dict = new Dictionary <CrsTransformationAdapteeType, bool>(); foreach (CrsTransformationResult crsTransformationResultLeaf in transformationResultChildren) { Assert.IsTrue(crsTransformationResultLeaf.IsSuccess); dict.Add(crsTransformationResultLeaf.CrsTransformationAdapterResultSource.AdapteeType, true); // Leafs always only have one result and thus there are zero difference between max and min result. // Therefore the below assertion should succeed Assert.IsTrue( crsTransformationResultLeaf.IsReliable( 1, // minimumNumberOfSuccesfulResults 0.0000000000000000000000000000001 // maxDeltaValueForXLongitudeAndYLatitude ) ); // Leafs always only have one result and thus the below tested method should return False Assert.IsFalse( crsTransformationResultLeaf.IsReliable( 2, // minimumNumberOfSuccesfulResults 0.1 // maxDeltaValueForXLongitudeAndYLatitude ) ); CrsTransformationResultStatistic leafResultStatistic = crsTransformationResultLeaf.CrsTransformationResultStatistic; Assert.IsTrue(leafResultStatistic.IsStatisticsAvailable); Assert.AreEqual(1, leafResultStatistic.NumberOfPotentiallySuccesfulResults); Assert.That(leafResultStatistic.MaxDifferenceForXEastingLongitude, Is.LessThan(0.01)); Assert.That(leafResultStatistic.MaxDifferenceForYNorthingLatitude, Is.LessThan(0.01)); } Assert.AreEqual(3, dict.Count); Assert.IsTrue(dict.ContainsKey(CrsTransformationAdapteeType.LEAF_MIGHTY_LITTLE_GEODESY_1_0_1)); Assert.IsTrue(dict.ContainsKey(CrsTransformationAdapteeType.LEAF_DOT_SPATIAL_2_0_0_RC1)); Assert.IsTrue(dict.ContainsKey(CrsTransformationAdapteeType.LEAF_PROJ_NET_4_GEO_API_1_4_1)); }
public void IsReliable_ShouldReturnTrueOrFalseForComposites_DependingOnCriteriasUsedAsMethodParameter() { // the below value is the max difference when comparing the three leaf implementations double actualMaxDiffXorY = 0.0032574664801359177; // the above value is obviously fragile and might change if/when some adaptee library is upgraded int criteriaNumberOfResultsSuccess = EXPECTED_NUMBER_OF_ADAPTER_LEAF_IMPLEMENTATIONS; // all 3 should succeed int criteriaNumberOfResultsFailure = EXPECTED_NUMBER_OF_ADAPTER_LEAF_IMPLEMENTATIONS + 1; // 4 implementations can not currently succeed since there are currently not so many implementations double criteriaMaxDiffFailure = actualMaxDiffXorY - 0.0001; // a little too small requirement for max difference double criteriaMaxDiffSuccess = actualMaxDiffXorY + 0.0001; // should result in success since the actual number is smaller List<ICrsTransformationAdapter> crsTransformationAdapterImplementationsExpectingManyResults = new List<ICrsTransformationAdapter>(); foreach (ICrsTransformationAdapter crsTransformationAdapterComposite in base.crsTransformationAdapterCompositeImplementations) { if(crsTransformationAdapterComposite.AdapteeType != CrsTransformationAdapteeType.COMPOSITE_FIRST_SUCCESS) { crsTransformationAdapterImplementationsExpectingManyResults.Add(crsTransformationAdapterComposite); } } Assert.AreEqual( 3, // 3 composites i.e. all composite except COMPOSITE_FIRST_SUCCESS crsTransformationAdapterImplementationsExpectingManyResults.Count ); foreach (ICrsTransformationAdapter crsTransformationAdapterComposite in crsTransformationAdapterImplementationsExpectingManyResults) { CrsCoordinate wgs84coordinateInSweden = CrsCoordinateFactory.LatLon(59.29,18.03); CrsTransformationResult resultWhenTransformingToSwedishCRS = crsTransformationAdapterComposite.Transform(wgs84coordinateInSweden, EpsgNumber.SWEDEN__SWEREF99_TM__3006); Assert.IsNotNull(resultWhenTransformingToSwedishCRS); Assert.IsTrue(resultWhenTransformingToSwedishCRS.IsSuccess); CrsTransformationResultStatistic crsTransformationResultStatistic = resultWhenTransformingToSwedishCRS.CrsTransformationResultStatistic; Assert.IsNotNull(crsTransformationResultStatistic); Assert.IsTrue(crsTransformationResultStatistic.IsStatisticsAvailable); // so far the same code as the previous test method for the test method with leafs int actualNumberOfResults = crsTransformationResultStatistic.NumberOfPotentiallySuccesfulResults; Assert.AreEqual( criteriaNumberOfResultsSuccess, actualNumberOfResults ); double actualMaxDiffXLongitude = crsTransformationResultStatistic.MaxDifferenceForXEastingLongitude; double actualMaxDiffYLatitude = crsTransformationResultStatistic.MaxDifferenceForYNorthingLatitude; // double actualMaxDiffXorY = Math.max(actualMaxDiffXLongitude, actualMaxDiffYLatitude); // System.out.println("actualMaxDiffXorY " + actualMaxDiffXorY + " " + crsTransformationAdapterComposite.getAdapteeType()); // method "isReliable" used below is the method under test Assert.IsTrue( resultWhenTransformingToSwedishCRS.IsReliable( criteriaNumberOfResultsSuccess, criteriaMaxDiffSuccess ) ); Assert.IsFalse( resultWhenTransformingToSwedishCRS.IsReliable( criteriaNumberOfResultsSuccess, criteriaMaxDiffFailure ) ); Assert.IsFalse( resultWhenTransformingToSwedishCRS.IsReliable( criteriaNumberOfResultsFailure, criteriaMaxDiffSuccess ) ); Assert.IsFalse( resultWhenTransformingToSwedishCRS.IsReliable( criteriaNumberOfResultsFailure, criteriaMaxDiffFailure ) ); } }
public void IsReliable_ShouldReturnTrueForLeafs_WhenUsingCriteriaNumberOfResultsOneAndMaxDiffZero() { int criteriaNumberOfResults = 1; // always one for a Leaf double criteriaMaxDiff = 0.0; // always zero for a Leaf // The tested method 'IsReliable' is actually relevant only for aggregated // transformations, but nevertheless there is a reaonable behavouor also // for the "Leaf" implementations regarding the number of results (always 1) // and the "differences" in lat/long for the "different" implementations // i.e. the "difference" should always be zero since there is only one implementation List<ICrsTransformationAdapter> crsTransformationAdapterImplementationsExpectingOneResult = new List<ICrsTransformationAdapter>(); crsTransformationAdapterImplementationsExpectingOneResult.AddRange(base.crsTransformationAdapterLeafImplementations); crsTransformationAdapterImplementationsExpectingOneResult.Add(crsTransformationAdapterCompositeFactory.CreateCrsTransformationFirstSuccess()); Assert.AreEqual( EXPECTED_NUMBER_OF_ADAPTER_LEAF_IMPLEMENTATIONS + 1, // 3 leafs plus 1 crsTransformationAdapterImplementationsExpectingOneResult.Count ); foreach (ICrsTransformationAdapter crsTransformationAdapterLeaf in crsTransformationAdapterImplementationsExpectingOneResult) { // suffix "Leaf" is not quite true, but in one of the iterations // it will be the Composite FirstSuccess which also will only have one result // and thus can be tested in the same way as the leafs in this method CrsCoordinate wgs84coordinateInSweden = CrsCoordinateFactory.LatLon(59.29,18.03); CrsTransformationResult resultWhenTransformingToSwedishCRS = crsTransformationAdapterLeaf.Transform(wgs84coordinateInSweden, EpsgNumber.SWEDEN__SWEREF99_TM__3006); Assert.IsNotNull(resultWhenTransformingToSwedishCRS); Assert.IsTrue(resultWhenTransformingToSwedishCRS.IsSuccess); CrsTransformationResultStatistic crsTransformationResultStatistic = resultWhenTransformingToSwedishCRS.CrsTransformationResultStatistic; Assert.IsNotNull(crsTransformationResultStatistic); Assert.IsTrue(crsTransformationResultStatistic.IsStatisticsAvailable); int actualNumberOfResults = crsTransformationResultStatistic.NumberOfPotentiallySuccesfulResults; Assert.AreEqual(criteriaNumberOfResults, actualNumberOfResults); double actualMaxDiffXLongitude = crsTransformationResultStatistic.MaxDifferenceForXEastingLongitude; double actualMaxDiffYLatitude = crsTransformationResultStatistic.MaxDifferenceForYNorthingLatitude; double actualMaxDiffXorY = Math.Max(actualMaxDiffXLongitude, actualMaxDiffYLatitude); Assert.AreEqual(criteriaMaxDiff, actualMaxDiffXorY); // zero differences since there should be only one result ! // method "IsReliable" used below is the method under test Assert.IsTrue( resultWhenTransformingToSwedishCRS.IsReliable( criteriaNumberOfResults, criteriaMaxDiff ) ); // Assert.IsFalse below since trying to require one more result than available Assert.IsFalse( resultWhenTransformingToSwedishCRS.IsReliable( criteriaNumberOfResults + 1, criteriaMaxDiff ) ); // Assert.IsFalse below since trying to require too small maxdiff Assert.IsFalse( resultWhenTransformingToSwedishCRS.IsReliable( criteriaNumberOfResults, criteriaMaxDiff - 0.00000000001 ) ); } }
public void method() { Console.WriteLine("LargerCSharpeExample starts"); // Some terminology regarding the names used in the below code example: // "CRS" = Coordinate Reference System // "WGS84" is the most frequently used coordinate system (e.g. the coordinates usually used in a GPS) // "SWEREF99TM" is the official coordinate system used by authorities in Sweden // "EPSG" = "European Petroleum Survey Group" was (but the EPSG name is still often used) // an organization defining CRS with integer numbers e.g. 4326 for WGS84 or 3006 for SWEREF99TM int epsgWgs84 = EpsgNumber.WORLD__WGS_84__4326; int epsgSweRef = EpsgNumber.SWEDEN__SWEREF99_TM__3006; // The above "EpsgNumber" class with LOTS OF constants (and more constants classes) have been generated, // using "FreeMarker" and database downloaded from EPSG ( http://www.epsg.org or http://www.epsg-registry.org ) // from "crs-transformation-code-generation" in the project https://github.com/TomasJohansson/crsTransformations CrsCoordinate centralStockholmWgs84 = CrsCoordinateFactory.LatLon(59.330231, 18.059196, epsgWgs84); // https://kartor.eniro.se/m/03Yxp // SWEREF99TM coordinates (for WGS84 59.330231, 18.059196) // according to Eniro (above URL): 6580822, 674032 (northing, easting) ICrsTransformationAdapter crsTransformationAdapter; // interface with concrete "leaf" implementation or "composite" implementations // This code example is using a "composite" which will use multiple libraries to do the same transformation and then // return a coordinate with the median values (median of the northing values and median of the easting values) crsTransformationAdapter = CrsTransformationAdapterCompositeFactory.Create().CreateCrsTransformationMedian(); // The above factory will try to use those known objects which implements the interface i.e. the number // of "leaf" objects will depend on how many you included as for example NuGet dependencies (three in the above NuGet example) Console.WriteLine("Number of 'leafs' : " + crsTransformationAdapter.TransformationAdapterChildren.Count); // Console output from the above row: // Number of 'leafs' : 3 // Transform the WGS84 coordinate to a SWEREF99TM coordinate: CrsCoordinate centralStockholmSweRef = crsTransformationAdapter.TransformToCoordinate(centralStockholmWgs84, epsgSweRef); Console.WriteLine("Median Composite Northing: " + centralStockholmSweRef.Northing); Console.WriteLine("Median Composite Easting: " + centralStockholmSweRef.Easting); // Console output from the above two rows: // Median Composite Northing: 6580821.99121561 // Median Composite Easting: 674032.357177155 // (and these can be compared with the 'Eniro' values above i.e. '6580822, 674032 (northing, easting)' ) // The coordinate class provides four properties with different names for the same east-west value and // four properties for the same name each north-south value, as below: // Four EQUIVALENT properties: Easting , X , Longitude , XEastingLongitude // Four EQUIVALENT properties: Northing , Y , Latitude , YNorthingLatitude // Regarding the above alternative methods, depending on the desired semantic in your context, you may want to use: // X/Y for a geocentric or cartesian system // Longitude/Latitude for a geodetic or geographic system // Easting/Northing for a cartographic or projected system // xEastingLongitude/yNorthingLatitude for general code handling different types of system // If you want more details for the result you can use the following 'Transform' method: // (instead of the method 'TransformToCoordinate' used above) CrsTransformationResult centralStockholmResultSweRef = crsTransformationAdapter.Transform(centralStockholmWgs84, epsgSweRef); if(!centralStockholmResultSweRef.IsSuccess) { Console.WriteLine("No coordinate result"); } else { if(centralStockholmResultSweRef.IsReliable( 2, // minimumNumberOfSuccesfulResults 0.01 // maxDeltaValueForXLongitudeAndYLatitude )) { // at least 2 succesful results and the maximal difference in northing or easting is less than 0.01 // (and if you want to know the exact difference you can find it in this code example further down the page) Console.WriteLine("Reliable result"); // according to your chosen parameters to the method 'isReliable' } else { Console.WriteLine("Not reliable result"); } Console.WriteLine(centralStockholmResultSweRef.OutputCoordinate); // Console output from the above code row: // CrsCoordinate(xEastingLongitude=674032.357177155, yNorthingLatitude=6580821.99121561, crsIdentifier=CrsIdentifier(crsCode='EPSG:3006', isEpsgCode=True, epsgNumber=3006)) // When your code is in a context where you only have the result (but not the adapter object) // (e.g. in a method receiving the result as a parameter) // you can get back the object which created the result as below: ICrsTransformationAdapter crsTransformationAdapterResultSource = centralStockholmResultSweRef.CrsTransformationAdapterResultSource; CrsTransformationAdapteeType adapteeType = crsTransformationAdapterResultSource.AdapteeType; Console.WriteLine("adapteeType: " + adapteeType); // console output: COMPOSITE_MEDIAN // The above code row returned an enum which is not really a true adaptee just like the 'composite' is not a true adapter. // However, when iterating (as below) the "leaf" results, // it might be more interesting to keep track of from where the different values originated IList<CrsTransformationResult> transformationResultChildren = centralStockholmResultSweRef.TransformationResultChildren; foreach (CrsTransformationResult crsTransformationResultLeaf in transformationResultChildren) { if(!crsTransformationResultLeaf.IsSuccess) continue; // continue with the next 'leaf' ICrsTransformationAdapter resultAdapter = crsTransformationResultLeaf.CrsTransformationAdapterResultSource; Console.WriteLine(resultAdapter.AdapteeType); // The above code row will output rows like this: // "LEAF_PROJ_NET_4_GEO_API_1_4_1" or "LEAF_MIGHTY_LITTLE_GEODESY_1_0_1" and so on if(!crsTransformationResultLeaf.IsReliable( 2, // minimumNumberOfSuccesfulResults 1000 // maxDeltaValueForXLongitudeAndYLatitude )) { // The above constraint "at least 2 implementations" will always fail because now we are dealing with "leafs" // The above delta value constraint has very high tolerance but it does not matter since // the constraint about the number of implementations will fail Console.WriteLine("Only 'composites' can have more than one result and this is a 'leaf' and thus does not have at least two results"); } Console.WriteLine("Adapter long name: " + resultAdapter.LongNameOfImplementation); // full class name including package Console.WriteLine("Adapter short name: " + resultAdapter.ShortNameOfImplementation); // class name suffix i.e. the unique part // The above "long" names will be for example: // Programmerare.CrsTransformations.Adapter.DotSpatial.CrsTransformationAdapterDotSpatial // Programmerare.CrsTransformations.Adapter.MightyLittleGeodesy.CrsTransformationAdapterMightyLittleGeodesy // The above "short" names will be for example: // DotSpatial // MightyLittleGeodesy Console.WriteLine("adaptee: " + resultAdapter.AdapteeType); // The above row will output for example: // LEAF_DOT_SPATIAL_2_0_0_RC1 // LEAF_MIGHTY_LITTLE_GEODESY_1_0_1 // (note that the version number is included for the adaptees) Console.WriteLine("isComposite: " + resultAdapter.IsComposite); // "False" since we are iterating "leaf" results Console.WriteLine("Coordinate result for " + resultAdapter.AdapteeType + " : " + crsTransformationResultLeaf.OutputCoordinate); // The above row will output these rows when doing the iteration: // Coordinate result for LEAF_DOT_SPATIAL_2_0_0_RC1 : CrsCoordinate(xEastingLongitude=674032.357322213, yNorthingLatitude=6580821.99121561, crsIdentifier=CrsIdentifier(crsCode='EPSG:3006', isEpsgCode=True, epsgNumber=3006)) // Coordinate result for LEAF_PROJ_NET_4_GEO_API_1_4_1 : CrsCoordinate(xEastingLongitude=674032.357177155, yNorthingLatitude=6580821.99437121, crsIdentifier=CrsIdentifier(crsCode='EPSG:3006', isEpsgCode=True, epsgNumber=3006)) // Coordinate result for LEAF_MIGHTY_LITTLE_GEODESY_1_0_1 : CrsCoordinate(xEastingLongitude=674032.357, yNorthingLatitude=6580821.991, crsIdentifier=CrsIdentifier(crsCode='EPSG:3006', isEpsgCode=True, epsgNumber=3006)) // Note that the median value for "x" is 674032.357177155 for the above // three values 674032.357 , 674032.357177155 , 674032.357322213 . // That is the same value as was displayed before the iteration of the children/leafs for the median composite. // The same applies for the above "y" i.e. the median is 6580821.99121561 // for the three y values 6580821.991 , 6580821.99121561 , 6580821.99437121 } // The result object also provides convenience methods for the results (which you of course otherwise might calculate by iterating the above results) CrsTransformationResultStatistic crsTransformationResultStatistic = centralStockholmResultSweRef.CrsTransformationResultStatistic; // Note that the initially created composite was a "median composite" returning the median as the main value, // but you can also create an average composite and regardless you can access both the median and the average with the aggregated statistics object: Console.WriteLine("average coordinate: " + crsTransformationResultStatistic.CoordinateAverage); Console.WriteLine("median coordinate: " + crsTransformationResultStatistic.CoordinateMedian); // Console output from the above two rows: // average coordinate: CrsCoordinate(xEastingLongitude=674032.357166456, yNorthingLatitude=6580821.99219561, crsIdentifier=CrsIdentifier(crsCode='EPSG:3006', isEpsgCode=True, epsgNumber=3006)) // median coordinate: CrsCoordinate(xEastingLongitude=674032.357177155, yNorthingLatitude=6580821.99121561, crsIdentifier=CrsIdentifier(crsCode='EPSG:3006', isEpsgCode=True, epsgNumber=3006)) Console.WriteLine("MaxDifferenceForXEastingLongitude: " + crsTransformationResultStatistic.MaxDifferenceForXEastingLongitude); Console.WriteLine("MaxDifferenceForYNorthingLatitude: " + crsTransformationResultStatistic.MaxDifferenceForYNorthingLatitude); // Output from the above two rows: // MaxDifferenceForXEastingLongitude: 0.000322213280014694 // MaxDifferenceForYNorthingLatitude: 0.00337121076881886 // As you can see in the above iteration, the min and max x values are 674032.357 and 674032.357322213 (and the difference is 0.000322213). // Similarly the min and max y values are 6580821.991 and 6580821.99437121 (and the difference is 0.00337121). // The above two "MaxDifference" methods are used within the implementation of the convenience method 'isReliable' // (also illustrated in this example further above) } // else statement ends Console.WriteLine("LargerCSharpeExample ends"); Console.ReadLine(); } // method ends