Fixed and issue with the x limits being the same value when using MercatorWithLatTS. Fixes #24

doc/source/new.rst

@@ -4,6 +4,13 @@ What's New
 Releases
 -------------
 
+v1.0.3
+^^^^^^^^^^^^^^
+
+- Relase 1.0.3
+- Fixed an issue with the cartopy Mercator subclass where the xlimits were 
+  being calculated to the same value (or very close), causing blank plots.
+
 v1.0.2
 ^^^^^^^^^^^^^^
 

src/wrf/projection.py

@@ -69,7 +69,7 @@ if cartopy_enabled():
             # to the same value, so make sure the left one is negative
             xlimits = limits[..., 0]
             
-            if xlimits[0] == xlimits[1]:
+            if math.fabs(xlimits[0] - xlimits[1]) < 1e-6:
                 if xlimits[0] < 0:
                     xlimits[1] = -xlimits[1]
                 else:

src/wrf/version.py

@@ -1,2 +1,2 @@
-__version__ = "1.0.2"
+__version__ = "1.0.3"