From 2916638a27ff4fe42e30ee8fb6a005a5524389a0 Mon Sep 17 00:00:00 2001
From: marcomusy <marco.musy@gmail.com>
Date: Mon, 20 May 2024 21:38:25 +0200
Subject: [PATCH] freeze() renderer

---
 vedo/applications.py |  6 +++---
 vedo/cli.py          | 10 +++++++++-
 vedo/plotter.py      |  4 ++--
 vedo/version.py      |  2 +-
 4 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/vedo/applications.py b/vedo/applications.py
index a8c33a0f..95e5e756 100644
--- a/vedo/applications.py
+++ b/vedo/applications.py
@@ -946,7 +946,7 @@ def slider_cmap(widget=None, event=""):
             if widget:
                 k = int(widget.value)
                 volume.cmap(cmaps[k])
-                self.remove(self.color_scalarbar)
+            self.remove(self.color_scalarbar)
             self.color_scalarbar = vedo.addons.ScalarBar(
                 volume, horizontal=True, font_size=2, pos=[0.8,0.02], size=[30,1500],
             )
@@ -964,15 +964,15 @@ def slider_cmap(widget=None, event=""):
 
         ############################## alpha sliders
         # Create transfer mapping scalar value to opacity transfer function
-        otf = self.properties.GetScalarOpacity()
-
         def setOTF():
+            otf = self.properties.GetScalarOpacity()
             otf.RemoveAllPoints()
             otf.AddPoint(smin, 0.0)
             otf.AddPoint(smin + (smax - smin) * 0.1, 0.0)
             otf.AddPoint(x0alpha, self.alphaslider0)
             otf.AddPoint(x1alpha, self.alphaslider1)
             otf.AddPoint(x2alpha, self.alphaslider2)
+            slider_cmap()
 
         setOTF()  ################
 
diff --git a/vedo/cli.py b/vedo/cli.py
index d29c5d71..ee948b6c 100644
--- a/vedo/cli.py
+++ b/vedo/cli.py
@@ -793,6 +793,14 @@ def draw_scene(args):
     ):
         # print('DEBUG normal mode for single VOXEL file with Isosurface Slider mode')
         vol = file_io.load(args.files[0], force=args.reload)
+
+        if vol.shape[2] == 1:
+            # print('DEBUG It is a 2D image!')
+            img = vedo.Image(args.files[0])
+            plt = vedo.Plotter().parallel_projection()
+            plt.show(img, zoom="tightest", mode="image").close()
+            return
+
         sp = vol.spacing()
         vol.spacing([sp[0] * args.x_spacing, 
                      sp[1] * args.y_spacing, 
@@ -802,7 +810,7 @@ def draw_scene(args):
         plt = applications.IsosurfaceBrowser(
             vol, c=args.color, cmap=args.cmap, precompute=False, use_gpu=True
         )
-        plt.show(zoom=args.zoom, viewup="z")
+        plt.show(zoom=args.zoom, viewup="z").close()
         return
 
     ########################################################################
diff --git a/vedo/plotter.py b/vedo/plotter.py
index b0abb877..3fab4cbf 100644
--- a/vedo/plotter.py
+++ b/vedo/plotter.py
@@ -3561,13 +3561,13 @@ def break_interaction(self) -> Self:
             self.interactor.ExitCallback()
         return self
 
-    def freeze(self, value=False) -> Self:
+    def freeze(self, value=True) -> Self:
         """Freeze the current renderer. Use this with `sharecam=False`."""
         if not self.interactor:
             return self
         if not self.renderer:
             return self
-        self.renderer.SetInteractive(value)
+        self.renderer.SetInteractive(not value)
         return self
 
     def user_mode(self, mode) -> Self:
diff --git a/vedo/version.py b/vedo/version.py
index 1e81d2bc..ac994dab 100644
--- a/vedo/version.py
+++ b/vedo/version.py
@@ -1 +1 @@
-_version = '2024.5.1+dev15'
+_version = '2024.5.1+dev16'