From d2d83df32bba3bff38e01974feb6d30a04523c31 Mon Sep 17 00:00:00 2001
From: xhlulu <xhlperso@gmail.com>
Date: Fri, 29 Jan 2021 14:52:58 -0500
Subject: [PATCH] Add random seed to ensure reproducibility

---
 demos/pyvista-terrain-following-mesh/app.py | 2 ++
 demos/slice-rendering/app.py                | 2 ++
 demos/synthetic-volume-rendering/app.py     | 2 ++
 demos/usage-algorithm/app.py                | 2 ++
 demos/usage-vtk-cfd/app.py                  | 2 ++
 5 files changed, 10 insertions(+)

diff --git a/demos/pyvista-terrain-following-mesh/app.py b/demos/pyvista-terrain-following-mesh/app.py
index 5810c4f..f55e804 100644
--- a/demos/pyvista-terrain-following-mesh/app.py
+++ b/demos/pyvista-terrain-following-mesh/app.py
@@ -13,6 +13,8 @@
 
 from dash_vtk.utils import presets
 
+random.seed(42)
+
 
 def toDropOption(name):
     return {"label": name, "value": name}
diff --git a/demos/slice-rendering/app.py b/demos/slice-rendering/app.py
index c2e2c4f..d1c8bf3 100644
--- a/demos/slice-rendering/app.py
+++ b/demos/slice-rendering/app.py
@@ -12,6 +12,8 @@
 
 import vtk
 
+random.seed(42)
+
 # Data file path
 demo_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 head_vti = os.path.join(demo_dir, "data", "head.vti")
diff --git a/demos/synthetic-volume-rendering/app.py b/demos/synthetic-volume-rendering/app.py
index 9594480..ae398a2 100644
--- a/demos/synthetic-volume-rendering/app.py
+++ b/demos/synthetic-volume-rendering/app.py
@@ -4,6 +4,8 @@
 import dash_vtk
 import dash_html_components as html
 
+random.seed(42)
+
 app = dash.Dash(__name__)
 server = app.server
 
diff --git a/demos/usage-algorithm/app.py b/demos/usage-algorithm/app.py
index 87fe15d..2b08179 100644
--- a/demos/usage-algorithm/app.py
+++ b/demos/usage-algorithm/app.py
@@ -7,6 +7,8 @@
 import dash_core_components as dcc
 from dash.dependencies import Input, Output, State
 
+random.seed(42)
+
 app = dash.Dash(__name__, external_stylesheets=[dbc.themes.BOOTSTRAP])
 server = app.server
 
diff --git a/demos/usage-vtk-cfd/app.py b/demos/usage-vtk-cfd/app.py
index 8c7dca2..4299396 100644
--- a/demos/usage-vtk-cfd/app.py
+++ b/demos/usage-vtk-cfd/app.py
@@ -14,6 +14,8 @@
 
 import vtk
 
+random.seed(42)
+
 # -----------------------------------------------------------------------------
 # VTK Pipeline
 # -----------------------------------------------------------------------------