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Fixed an error when reading the AuthorityCode parameter #129

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Merged
FObermaier merged 2 commits into from
Aug 15, 2025
Merged

Fixed an error when reading the AuthorityCode parameter #129

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097fe8e
Fixed an error when reading the AuthorityCode parameter and added a …
mario-mu May 6, 2025
2cb8a66
Merge branch 'develop_orig' into bugfix/AuthorityCode
mario-mu May 7, 2025
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17 changes: 12 additions & 5 deletions src/ProjNet/IO/CoordinateSystems/CoordinateSystemWktReader.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -367,7 +367,7 @@ private static ProjectedCoordinateSystem ReadProjectedCoordinateSystem(WktStream
string authority = string.Empty;
long authorityCode = -1;

tokenizer.NextToken();
var ct = tokenizer.NextToken();
if (tokenizer.GetStringValue() == ",")
{
tokenizer.NextToken();
Expand All @@ -377,11 +377,18 @@ private static ProjectedCoordinateSystem ReadProjectedCoordinateSystem(WktStream
tokenizer.NextToken();
if (tokenizer.GetStringValue() == ",") tokenizer.NextToken();
}
if (tokenizer.GetStringValue() == ",") tokenizer.NextToken();
if (tokenizer.GetStringValue() == "AUTHORITY")

while (ct != TokenType.Eol && ct != TokenType.Eof)
{
tokenizer.ReadAuthority(out authority, out authorityCode);
tokenizer.ReadCloser(bracket);
if (tokenizer.GetStringValue() == "AUTHORITY")
{
tokenizer.ReadAuthority(out authority, out authorityCode);
break;
}
else
{
ct = tokenizer.NextToken();
}
}
}
//This is default axis values if not specified.
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17 changes: 17 additions & 0 deletions test/ProjNet.Tests/ProjNetIssues.cs
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Expand Up @@ -297,5 +297,22 @@ public void TestGitHubIssue98()
Assert.IsTrue(cmpdCs.HeadCoordinateSystem is ProjectedCoordinateSystem);
Assert.IsTrue(cmpdCs.TailCoordinateSystem is VerticalCoordinateSystem);
}

/// <summary>
/// Tests if a coordinate system can be created from a Well-Known Text (WKT) representation
/// and verifies that the authority code is correctly loaded.
/// </summary>
/// <remarks>
/// This test ensures that the WKT parsing functionality of the CoordinateSystemFactory
/// correctly initializes the coordinate system and its associated metadata, such as the authority code.
/// </remarks>
[Test]
public void TestAuthorityNotLoadedIssue()
{
string wkt = "PROJCS[\"WGS 84 / Pseudo-Mercator\",GEOGCS[\"WGS 84\",DATUM[\"WGS_1984\",SPHEROID[\"WGS 84\",6378137,298.257223563,AUTHORITY[\"EPSG\",\"7030\"]],AUTHORITY[\"EPSG\",\"6326\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4326\"]],PROJECTION[\"Mercator_1SP\"],PARAMETER[\"central_meridian\",0],PARAMETER[\"scale_factor\",1],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"X\",EAST],AXIS[\"Y\",NORTH],EXTENSION[\"PROJ4\",\"+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs\"],AUTHORITY[\"EPSG\",\"3857\"]]";
var coordinateSystem = CoordinateSystemFactory.CreateFromWkt(wkt);
Assert.IsNotNull(coordinateSystem);
Assert.AreEqual(coordinateSystem.AuthorityCode, 3857);
}
}
}
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