private static IEnumerable<TestDataSweden> GetCsvDataFromFileWithSomeCoordinatesForSweden() {
using(StreamReader sr = File.OpenText(testFileWithSomeCoordinatesForSweden)) {
string line;
while( (line = sr.ReadLine()) != null ) {
// the first line of the file (which will be ignored in this iteration):
//Description;4326Y;4326X;3021Y;3021X;3006Y;3006X;Url with some information about the location at the row
if(
line.StartsWith("Description;") // the line above
|| line.StartsWith("#") // "comment rows" to be ignored starts with a "#"
) continue;
// example of a later line in the file i.e. one of those lines to become used:
// Stockholm Centralstation;59.330231;18.059196;6580994;1628294;6580822;674032;https://kartor.eniro.se/m/03Yxp
var arr = line.Split(";");
var t = new TestDataSweden();
t.description = arr[0];
t.wgs84Lat = double.Parse(arr[1]);
t.wgs84Lon = double.Parse(arr[2]);
t.rt90north = double.Parse(arr[3]);
t.rt90east = double.Parse(arr[4]);
t.sweref99north = double.Parse(arr[5]);
t.sweref99east = double.Parse(arr[6]);
t.url = arr[7];
yield return t;
}
}
}
public void VerifyTransformationsCorrespondToCsvFileCoordinates(
TestDataSweden t
) {
string description = t.description;
double wgs84Lat = t.wgs84Lat;
double wgs84Lon = t.wgs84Lon;
double rt90north = t.rt90north;
double rt90east = t.rt90east;
double sweref99north = t.sweref99north;
double sweref99east = t.sweref99east;
string url = t.url;
// example row from the csv file:
// Stockholm Centralstation;59.330231;18.059196;6580994;1628294;6580822;674032;https://kartor.eniro.se/m/03Yxp
// These used coordinates (i.e. those in the csv file) were manually retrieved from the Eniro
// site at the URL's for each row, and by clicking the coordinate feature
// which shows the coordinates in the three systems WGS84, RT90, SWREF99
foreach (ICrsTransformationAdapter crsTransformationAdapter in crsTransformationAdapterImplementations) {
TransformToCoordinate_ShouldReturnEqualCoordinates_WhenTransformingBetweenTwoKnownCoordinatesToAndFromEachOther(
crsTransformationAdapter,
epsgNumberForWgs84, epsgNumberForRT90,
wgs84Lat, wgs84Lon,
rt90north, rt90east,
description
);
TransformToCoordinate_ShouldReturnEqualCoordinates_WhenTransformingBetweenTwoKnownCoordinatesToAndFromEachOther(
crsTransformationAdapter,
epsgNumberForWgs84, epsgNumberForSweref99TM,
wgs84Lat, wgs84Lon,
sweref99north, sweref99east,
description
);
TransformToCoordinate_ShouldReturnEqualCoordinates_WhenTransformingBetweenTwoKnownCoordinatesToAndFromEachOther(
crsTransformationAdapter,
epsgNumberForRT90, epsgNumberForSweref99TM,
rt90north, rt90east,
sweref99north, sweref99east,
description
);
}
}
public void VerifyTransformationsBackAndForthFromWgs84ToSwedishProjections(
TestDataSweden t
) {
CrsCoordinate inputCoordinateWGS84 = CrsCoordinateFactory.CreateFromXEastingLongitudeAndYNorthingLatitude(
t.wgs84Lon,
t.wgs84Lat,
epsgNumberForWgs84
);
foreach (ICrsTransformationAdapter crsTransformationAdapter in crsTransformationAdapterImplementations) {
foreach (int epsgNumber in epsgNumbersForSwedishProjectionsUsingMeterAsUnit) {
TransformToCoordinate_ShouldReturnTheOriginalCoordinate_WhenTransformingBackAgainFromTheResult(
crsTransformationAdapter,
inputCoordinateWGS84,
epsgNumber
);
}
}
}
public void TransformToCoordinate_ShouldReturnTheSameCoordinate_WhenTransformingWithDifferentImplementations(
TestDataSweden t
) {
CrsCoordinate inputCoordinateWGS84 = CrsCoordinateFactory.CreateFromXEastingLongitudeAndYNorthingLatitude(
t.wgs84Lon,
t.wgs84Lat,
epsgNumberForWgs84
);
for (int i = 0; i < crsTransformationAdapterImplementations.Count-1; i++) {
for (int j = i+1; j < crsTransformationAdapterImplementations.Count; j++) {
foreach (int epsgNumber in epsgNumbersForSwedishProjectionsUsingMeterAsUnit) {
TransformToCoordinate_ShouldReturnTheSameCoordinate_WhenTransformingWithTwoDifferentImplementations(
crsTransformationAdapterImplementations[i],
crsTransformationAdapterImplementations[j],
inputCoordinateWGS84,
epsgNumber
);
}
}
}
}