Merge pull request #15 from astropy/zoom-updates

Zoom updates
astropy · Aug 5, 2018 · 57dd5d7 · 57dd5d7
2 parents 54e4589 + 19a26a9
commit 57dd5d7
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diff --git a/astrowidgets/core.py b/astrowidgets/core.py
@@ -347,7 +347,7 @@ def zoom(self, val):
             See `zoom_level`.
 
         """
-        self._viewer.scale_to(val, val)
+        self.zoom_level = self.zoom_level * val
 
     @property
     def is_marking(self):

diff --git a/astrowidgets/tests/test_api.py b/astrowidgets/tests/test_api.py
@@ -55,8 +55,10 @@ def test_zoom_level():
 
 def test_zoom():
     image = ImageWidget()
+    image.zoom_level = 3
     val = 2
     image.zoom(val)
+    assert image.zoom_level == 6
 
 
 @pytest.mark.xfail(reason='Not implemented yet')