From d3ed614106078a1125a448903b0ae436cbacdb6c Mon Sep 17 00:00:00 2001
From: Will Schlitzer <schlitzer90@gmail.com>
Date: Wed, 26 May 2021 07:45:39 +0100
Subject: [PATCH] add unit and slice parameters

---
 pygmt/src/grdvolume.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/pygmt/src/grdvolume.py b/pygmt/src/grdvolume.py
index 0f67302686f..02c5567f1b9 100644
--- a/pygmt/src/grdvolume.py
+++ b/pygmt/src/grdvolume.py
@@ -13,9 +13,11 @@
 
 @fmt_docstring
 @use_alias(
-    C="above",
-    Cr="below",
+    C="plane",
+    Cr="outside_volume",
+    D="slice",
     R="region",
+    S="unit",
     V="verbose",
 )
 @kwargs_to_strings(C="sequence", R="sequence")
@@ -40,7 +42,9 @@ def grdvolume(grid, **kwargs):
         with Session() as lib:
             file_context = lib.virtualfile_from_data(check_kind="raster", data=grid)
             with file_context as infile:
-                arg_str = " ".join([infile, build_arg_string(kwargs)])
+                arg_str = " ".join(
+                    [infile, build_arg_string(kwargs), "->" + outfile.name]
+                )
                 lib.call_module("grdvolume", arg_str)
         result = outfile.read()
     return result