Adjust affine matrix to avoid three correlated axes in final plot

glue-viz · Jan 7, 2025 · 3afdd50 · 3afdd50
1 parent 488b1b3
commit 3afdd50
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/glue/core/coordinates.py b/glue/core/coordinates.py
@@ -209,6 +209,10 @@ def __setgluestate__(cls, rec, context):
                    units=rec['units'],
                    labels=rec['labels'])
 
+    @property
+    def axis_correlation_matrix(self):
+        return self._matrix[:-1, :-1] != 0
+
 
 # Kept for backward-compatibility
 WCSCoordinates = WCS

diff --git a/glue/viewers/image/tests/test_python_export.py b/glue/viewers/image/tests/test_python_export.py
@@ -18,7 +18,7 @@ def setup_method(self, method):
         with NumpyRNGContext(12345):
             self.data = Data(cube=np.random.random((30, 50, 20)))
         # Create data versions with WCS and affine coordinates
-        matrix = np.array([[2, 3, 0, -1], [1, 2, 0, 2], [0, 0, 1, -2], [0, 0, 0, 1]])
+        matrix = np.array([[2, 0, 0, -1], [0, 2, 1, 2], [0, 3, 1, -2], [0, 0, 0, 1]])
         affine = AffineCoordinates(matrix, units=['Mm', 'Mm', 'km'], labels=['xw', 'yw', 'zw'])
 
         self.data_wcs = Data(label='cube', cube=self.data['cube'], coords=WCS(naxis=3))