From 649f8b416198ede4965176bbdcad9519399b1132 Mon Sep 17 00:00:00 2001
From: Michael Krayer <michael.krayer@posteo.de>
Date: Tue, 22 Feb 2022 13:54:38 +0100
Subject: [PATCH] add open border bounding box

---
 visu.py | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/visu.py b/visu.py
index 9c4b2da..c609257 100644
--- a/visu.py
+++ b/visu.py
@@ -4,6 +4,27 @@ def add_domain_bounds(plotter,bounds,color='black',line_width=2.):
     plotter.add_mesh(domain,color=color,style='wireframe',line_width=line_width,opacity=0.999,lighting=False)
     return
 
+def add_domain_bounds_open(plotter,bounds,opacity_front=None,xlen=1.0,ylen=1.0,zlen=1.0,
+                                   color='black',line_width=2.):
+    import pyvista
+    x0,x1,y0,y1,z0,z1 = bounds
+    domain = pyvista.Line((x0,y0,z0),(x1,y0,z0)) + \
+             pyvista.Line((x0,y0,z0),(x0,y1,z0)) + \
+             pyvista.Line((x0,y0,z0),(x0,y0,z1)) + \
+             pyvista.Line((x1,y0,z0),(x1,y1,z0)) + \
+             pyvista.Line((x1,y0,z0),(x1,y0,z1)) + \
+             pyvista.Line((x0,y0,z1),(x1,y0,z1)) + \
+             pyvista.Line((x1,y0,z1),(x1,y1,z1)) + \
+             pyvista.Line((x0,y1,z0),(x1,y1,z0)) + \
+             pyvista.Line((x1,y1,z0),(x1,y1,z1))
+    plotter.add_mesh(domain,color=color,line_width=line_width,opacity=0.999,lighting=False)
+    if not opacity_front is None:
+        domain_front = pyvista.Line((x0+(1.-xlen)*(x1-x0),y1,z1),(x1,y1,z1)) + \
+                       pyvista.Line((x0,y0,z1),(x0,ylen*y1,z1)) + \
+                       pyvista.Line((x0,y1,z0),(x0,y1,zlen*z1))
+        plotter.add_mesh(domain_front,color=color,line_width=line_width,opacity=opacity_front,lighting=False)
+    return
+
 def enable_shadows_hacked(pl):
     # Reimplements pyvistas "enable_shadows()" method to also render translucent 
     # objects (without shadows). Can be used to add objects which do not throw