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-rw-r--r--metapost/context/base/mpiv/mp-mlib.mpiv10
1 files changed, 10 insertions, 0 deletions
diff --git a/metapost/context/base/mpiv/mp-mlib.mpiv b/metapost/context/base/mpiv/mp-mlib.mpiv
index 2c84d01c2..b4fe8a864 100644
--- a/metapost/context/base/mpiv/mp-mlib.mpiv
+++ b/metapost/context/base/mpiv/mp-mlib.mpiv
@@ -542,6 +542,16 @@ def withshadevector expr a =
withprescript "sh_center_b=" & ddecimal (point ypart a of mfun_shade_path)
enddef ;
+def withshadedirection expr a =
+ withprescript "sh_center_a=" & ddecimal (point xpart a of boundingbox(mfun_shade_path))
+ withprescript "sh_center_b=" & ddecimal (point ypart a of boundingbox(mfun_shade_path))
+enddef ;
+
+pair shadedup ; shadedup := (0.5,2.5) ;
+pair shadeddown ; shadeddown := (2.5,0.5) ;
+pair shadedleft ; shadedleft := (1.5,3.5) ;
+pair shadedright ; shadedright := (3.5,1.5) ;
+
def withshadecenter expr a =
withprescript "sh_center_a=" & ddecimal (
center mfun_shade_path shifted (