Implemented correct Raster.range

holoviews/core/dimension.py

@@ -970,9 +970,7 @@ def range(self, dimension, data_range=True):
                 range_fn = lambda x: x.range(dname)
                 ranges = self.traverse(range_fn, [match_fn])
                 drange = max_range(ranges)
-            soft_range = [r for r in dimension.soft_range if r is not None]
-            if soft_range:
-                drange = util.max_range([drange, soft_range])
+            drange = max_range([drange, dimension.soft_range])
         else:
             drange = dim.soft_range
         if dimension.range[0] is not None:

holoviews/element/raster.py

@@ -12,7 +12,7 @@
                     Overlay, Element, Dataset, NdElement)
 from ..core.boundingregion import BoundingRegion, BoundingBox
 from ..core.sheetcoords import SheetCoordinateSystem
-from ..core.util import pd
+from ..core.util import pd, max_range
 from .chart import Curve
 from .tabular import Table
 from .util import compute_edges, compute_slice_bounds, categorical_aggregate2d
@@ -76,6 +76,21 @@ def __getitem__(self, slices):
                               extents=None)
 
 
+    def range(self, dim, data_range=True):
+        idx = self.get_dimension_index(dim)
+        if data_range and idx == 2:
+            dimension = self.get_dimension(dim)
+            drange = self.data.min(), self.data.max()
+            drange = max_range([drange, dimension.soft_range])
+            if dimension.range[0] is not None:
+                return (dimension.range[0], drange[1])
+            elif dimension.range[1] is not None:
+                return (drange[0], dimension.range[1])
+            else:
+                return drange
+        return super(Raster, self).range(dim, data_range)
+
+
     def dimension_values(self, dim, expanded=True, flat=True):
         """
         The set of samples available along a particular dimension.