Figure.plot/Figure.plot3d: Allow the 'style' parameter to be an empty…

… string
GenericMappingTools · Nov 8, 2024 · a541aa4 · a541aa4
1 parent b6f3e2b
commit a541aa4
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/pygmt/src/plot.py b/pygmt/src/plot.py
@@ -213,7 +213,8 @@ def plot(
     if kind == "empty":  # Add more columns for vectors input
         # Parameters for vector styles
         if (
-            kwargs.get("S") is not None
+            isinstance(kwargs.get("S"), str)
+            and len(kwargs["S"]) >= 1
             and kwargs["S"][0] in "vV"
             and is_nonstr_iter(direction)
         ):

diff --git a/pygmt/src/plot3d.py b/pygmt/src/plot3d.py
@@ -197,7 +197,8 @@ def plot3d(
     if kind == "empty":  # Add more columns for vectors input
         # Parameters for vector styles
         if (
-            kwargs.get("S") is not None
+            isinstance(kwargs.get("S"), str)
+            and len(kwargs["S"]) >= 1
             and kwargs["S"][0] in "vV"
             and is_nonstr_iter(direction)
         ):