From a9c7cd4bdd436f47053d2337784cdc7d1c8b783d Mon Sep 17 00:00:00 2001
From: paulojamorim <paulojamorim@gmail.com>
Date: Wed, 18 Nov 2009 16:32:34 +0000
Subject: [PATCH] ADD: Function the select part from polydata

---
 invesalius/data/polydata_utils.py | 13 +++++++++++++
 invesalius/data/viewer_volume.py  | 11 +++++++++++
 2 files changed, 24 insertions(+), 0 deletions(-)

diff --git a/invesalius/data/polydata_utils.py b/invesalius/data/polydata_utils.py
index 2966a23..e9969eb 100644
--- a/invesalius/data/polydata_utils.py
+++ b/invesalius/data/polydata_utils.py
@@ -132,3 +132,16 @@ def Import(filename):
     reader.SetFileName(filename)
     reader.Update()
     return reader.GetOutput()
+
+def SelectPolyDataPart(polydata, point):
+    """
+    The function require vtkPolyData and point id
+    from vtkPolyData.
+    """
+    conn = vtk.vtkPolyDataConnectivityFilter()
+    conn.SetInput(polydata)
+    conn.SetExtractionModeToPointSeededRegions()
+    conn.AddSeed(point)
+    conn.Update()
+
+    return conn.GetOutput()
diff --git a/invesalius/data/viewer_volume.py b/invesalius/data/viewer_volume.py
index 80357fd..37e6fa9 100755
--- a/invesalius/data/viewer_volume.py
+++ b/invesalius/data/viewer_volume.py
@@ -670,3 +670,14 @@ class SlicePlane:
             self.plane_z.SetPlaneOrientationToZAxes()
             self.plane_z.SetSliceIndex(number)
 
+
+    def PointId(self, evt, obj):
+        #TODO: add in the code
+        #   picker = vtk.vtkPointPicker()
+        #   interactor.SetPicker(picker)
+        #   interactor.AddObserver("left...", self.PointId)
+        
+        x,y = evt.GetLastEventPosition()
+        self.picker.Pick(x, y, 0, self.ren1)
+        point_id = self.picker.GetPointId()
+        
\ No newline at end of file
--
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