fix negative levels

histolab · Jan 11, 2021 · 2d812dd · 2d812dd
1 parent 01d1841
commit 2d812dd
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/src/histolab/slide.py b/src/histolab/slide.py
@@ -120,6 +120,7 @@ def extract_tile(self, coords: CoordinatePair, level: int) -> Tile:
             Image containing the selected tile.
         """
 
+        level = level if level >= 0 else self._remap_level(level)
         if not self._has_valid_coords(coords):
             # OpenSlide doesn't complain if the coordinates for extraction are wrong,
             # but it returns an odd image.

diff --git a/tests/integration/test_tiler.py b/tests/integration/test_tiler.py
@@ -136,6 +136,13 @@ class DescribeScoreTiler:
                 False,
                 "tiles-location-images/cmu-1-small-region-tl-scored-false",
             ),
+            (
+                SVS.TCGA_CR_7395_01A_01_TS1,
+                -2,
+                False,
+                True,
+                "tiles-location-images/tcga-cr-7395-01a-01-ts1-tl-scored-false",
+            ),
             (
                 SVS.TCGA_CR_7395_01A_01_TS1,
                 0,
@@ -166,7 +173,7 @@ class DescribeScoreTiler:
             ),
         ],
     )
-    def it_locates_tiles_on_the_slide(
+    def it_locates_tiles_on_the_slide22(
         self,
         request,
         fixture_slide,