diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 491132d..eaa1bb3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,7 +21,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ 'ubuntu-latest', 'macos-latest', 'windows-latest']
-        python-version: ['3.8','3.9', '3.10', '3.11']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
 
     steps:
     - name: Check out mdal-python
@@ -80,7 +80,7 @@ jobs:
 
     - name: Publish package - test
       uses: pypa/gh-action-pypi-publish@release/v1
-      if: github.event_name != 'release'
+      if: github.event_name == 'pull_request' && github.event.action == 'closed' && github.event.pull_request.merged == true
       with:
         user: __token__
         password: ${{ secrets.PYPI_TEST_TOKEN }}
diff --git a/.gitignore b/.gitignore
index 36c6e18..7958219 100644
--- a/.gitignore
+++ b/.gitignore
@@ -43,3 +43,5 @@ mdal.egg-info/
 mdal-python.code-workspace
 mdal-pypi/LICENSE
 mdal-pypi/README.rst
+test/results_3di.nc
+
diff --git a/CHANGES.rst b/CHANGES.rst
index 3d43ef5..0b2123a 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,13 +1,16 @@
 Changes
 --------------------------------------------------------------------------------
 
-2.0.0
+1.0.2
 -----
 
-UNDER DEVELOPMENT
+- fix memory leaks and inconsistencies around the Datagroup object (#11)
+
+1.0.1
+-----
+
+- Add the PyPI package
 
-- fix memory leaks and inconsistencies around the Datagroup object
-- remove Open3D integration to separate package
 
 1.0.0
 -----
diff --git a/mdal/DatasetGroup.cpp b/mdal/DatasetGroup.cpp
index e1a571f..d4b2583 100644
--- a/mdal/DatasetGroup.cpp
+++ b/mdal/DatasetGroup.cpp
@@ -122,8 +122,14 @@ PyArrayObject* Data::getDataAsDouble(int index)
         MDAL_SetStatus(MDAL_LogLevel::Error, MDAL_Status::Err_FailToWriteToDisk, "Could not import numpy.core.multiarray.");
         return (PyArrayObject*)defaultArray();
     }
+
+    MDAL_DatasetH datasetH = MDAL_G_dataset(m_data, index);
+    if ( MDAL_LastStatus() != MDAL_Status::None)
+    {
+        return (PyArrayObject*)defaultArray();
+    }
     
-    npy_intp valueCount = (npy_intp)MDAL_D_valueCount( MDAL_G_dataset(m_data, index));
+    npy_intp valueCount = (npy_intp)MDAL_D_valueCount( datasetH);
     int dims;
     MDAL_DataType type;
     if (MDAL_G_hasScalarData(m_data)) 
@@ -190,15 +196,16 @@ PyArrayObject* Data::getDataAsDouble(int index)
     }
 
     Py_XDECREF(dict);
+    Py_XDECREF(titles);
+    Py_XDECREF(formats);
+    Py_XDECREF(m_dataset);
 
     // This is a valueCount array.
-    PyArrayObject* dataset = (PyArrayObject *)PyArray_NewFromDescr(&PyArray_Type, dtype,
+    m_dataset = (PyArrayObject *)PyArray_NewFromDescr(&PyArray_Type, dtype,
             1, &valueCount, 0, nullptr, NPY_ARRAY_CARRAY, nullptr);
 
     double* buffer = new double[dims * 1024];
     size_t count = 0;
-    int bufs = std::ceil(valueCount/1024);
-    if (bufs == 0) bufs = 1;
     int indexStart = 0;
     int next = 1024;
 
@@ -207,7 +214,7 @@ PyArrayObject* Data::getDataAsDouble(int index)
         int remain = valueCount - indexStart;
         if (remain < 1024) next = remain;
         if (remain <= 0 ) break;
-        count = MDAL_D_data(MDAL_G_dataset(m_data, index), indexStart, next , type, buffer);
+        count = MDAL_D_data(datasetH, indexStart, next , type, buffer);
         if (count != next) 
         {
             delete [] buffer;
@@ -216,7 +223,7 @@ PyArrayObject* Data::getDataAsDouble(int index)
         int idx = 0;
         for (int i = 0; i < count; i++) 
         {
-            char* p = (char *)PyArray_GETPTR1(dataset, indexStart + i);
+            char* p = (char *)PyArray_GETPTR1(m_dataset, indexStart + i);
                 
             for (int l =0; l < dims; l++)
             {
@@ -230,7 +237,7 @@ PyArrayObject* Data::getDataAsDouble(int index)
     }
     delete [] buffer;
     
-    return dataset;
+    return m_dataset;
 }
 
 PyArrayObject* Data::getDataAsVolumeIndex(int index)
@@ -244,8 +251,13 @@ PyArrayObject* Data::getDataAsVolumeIndex(int index)
         MDAL_SetStatus(MDAL_LogLevel::Error, MDAL_Status::Err_FailToWriteToDisk, "Could not import numpy.core.multiarray.");
         return (PyArrayObject*)defaultArray();
     }
+
+    if ( MDAL_LastStatus() != MDAL_Status::None)
+    {
+        return (PyArrayObject*)defaultArray();
+    }
     
-    npy_intp valueCount = (npy_intp)MDAL_M_faceCount( MDAL_G_mesh(m_data));
+    npy_intp valueCount = (npy_intp)MDAL_M_faceCount( MDAL_G_mesh(m_data) );
     
     PyObject* dict = PyDict_New();
     PyObject* formats = PyList_New(1);
@@ -265,15 +277,16 @@ PyArrayObject* Data::getDataAsVolumeIndex(int index)
     }
 
     Py_XDECREF(dict);
+    Py_XDECREF(titles);
+    Py_XDECREF(formats);
+    Py_XDECREF(m_dataset);
 
     // This is a dsCount x valueCount array.
-    PyArrayObject* dataset = (PyArrayObject *)PyArray_NewFromDescr(&PyArray_Type, dtype,
+    m_dataset = (PyArrayObject *)PyArray_NewFromDescr(&PyArray_Type, dtype,
             1, &valueCount, 0, nullptr, NPY_ARRAY_CARRAY, nullptr);
 
     int* buffer = new int[1024];
     size_t count = 0;
-    int bufs = std::ceil(valueCount/1024);
-    if (bufs == 0) bufs = 1;
     int indexStart = 0;
     int next = 1024;
 
@@ -282,7 +295,7 @@ PyArrayObject* Data::getDataAsVolumeIndex(int index)
         int remain = valueCount - indexStart;
         if (remain < 1024) next = remain;
         if (remain <= 0 ) break;
-        count = MDAL_D_data(MDAL_G_dataset(m_data, index), indexStart, next , MDAL_DataType::FACE_INDEX_TO_VOLUME_INDEX_INTEGER, buffer);
+        count = MDAL_D_data( MDAL_G_dataset(m_data, index), indexStart, next , MDAL_DataType::FACE_INDEX_TO_VOLUME_INDEX_INTEGER, buffer);
         if (count != next) 
         {
             delete [] buffer;
@@ -291,7 +304,7 @@ PyArrayObject* Data::getDataAsVolumeIndex(int index)
         int idx = 0;
         for (int i = 0; i < count; i++) 
         {
-            char* p = (char *)PyArray_GETPTR1(dataset, indexStart + i);
+            char* p = (char *)PyArray_GETPTR1(m_dataset, indexStart + i);
             uint32_t val = (uint32_t)buffer[idx];
             idx++;
             std::memcpy(p, &val, 4);
@@ -300,12 +313,12 @@ PyArrayObject* Data::getDataAsVolumeIndex(int index)
     }
     delete [] buffer;
     
-    return dataset;
+    return m_dataset;
 }
 
 PyArrayObject* Data::getDataAsLevelCount(int index)
 {
-        if (! m_data) 
+    if (! m_data) 
         return (PyArrayObject*)defaultArray();
     
     MDAL_ResetStatus();
@@ -314,6 +327,12 @@ PyArrayObject* Data::getDataAsLevelCount(int index)
         MDAL_SetStatus(MDAL_LogLevel::Error, MDAL_Status::Err_FailToWriteToDisk, "Could not import numpy.core.multiarray.");
         return (PyArrayObject*)defaultArray();
     }
+
+    MDAL_DatasetH datasetH = MDAL_G_dataset(m_data, index);
+    if ( MDAL_LastStatus() != MDAL_Status::None)
+    {
+        return (PyArrayObject*)defaultArray();
+    }
     
     npy_intp valueCount = (npy_intp)MDAL_M_faceCount( MDAL_G_mesh(m_data));
     
@@ -335,15 +354,16 @@ PyArrayObject* Data::getDataAsLevelCount(int index)
     }
 
     Py_XDECREF(dict);
+    Py_XDECREF(titles);
+    Py_XDECREF(formats);
+    Py_XDECREF(m_dataset);
 
     // This is a dsCount x valueCount array.
-    PyArrayObject* dataset = (PyArrayObject *)PyArray_NewFromDescr(&PyArray_Type, dtype,
+    m_dataset = (PyArrayObject *)PyArray_NewFromDescr(&PyArray_Type, dtype,
             1, &valueCount, 0, nullptr, NPY_ARRAY_CARRAY, nullptr);
 
     int* buffer = new int[1024];
     size_t count = 0;
-    int bufs = std::ceil(valueCount/1024);
-    if (bufs == 0) bufs = 1;
     int indexStart = 0;
     int next = 1024;
 
@@ -352,7 +372,7 @@ PyArrayObject* Data::getDataAsLevelCount(int index)
         int remain = valueCount - indexStart;
         if (remain < 1024) next = remain;
         if (remain <= 0 ) break;
-        count = MDAL_D_data(MDAL_G_dataset(m_data, index), indexStart, next , MDAL_DataType::VERTICAL_LEVEL_COUNT_INTEGER, buffer);
+        count = MDAL_D_data( datasetH, indexStart, next , MDAL_DataType::VERTICAL_LEVEL_COUNT_INTEGER, buffer);
 
         if (count != next) 
         {
@@ -362,7 +382,7 @@ PyArrayObject* Data::getDataAsLevelCount(int index)
         int idx = 0;
         for (int i = 0; i < count; i++) 
         {
-            char* p = (char *)PyArray_GETPTR1(dataset, indexStart + i);
+            char* p = (char *)PyArray_GETPTR1(m_dataset, indexStart + i);
             uint32_t val = (uint32_t)buffer[idx];
             idx++;
             std::memcpy(p, &val, 4);
@@ -371,7 +391,7 @@ PyArrayObject* Data::getDataAsLevelCount(int index)
     }
     delete [] buffer;
     
-    return dataset;
+    return m_dataset;
 }
 
 PyArrayObject* Data::getDataAsLevelValue(int index)
@@ -385,6 +405,12 @@ PyArrayObject* Data::getDataAsLevelValue(int index)
         MDAL_SetStatus(MDAL_LogLevel::Error, MDAL_Status::Err_FailToWriteToDisk, "Could not import numpy.core.multiarray.");
         return (PyArrayObject*)defaultArray();
     }
+
+    MDAL_DatasetH datasetH = MDAL_G_dataset(m_data, index);
+    if ( MDAL_LastStatus() != MDAL_Status::None)
+    {
+        return (PyArrayObject*)defaultArray();
+    }
     
     npy_intp valueCount = (npy_intp)MDAL_M_faceCount( MDAL_G_mesh(m_data)) + (npy_intp)MDAL_D_valueCount( MDAL_G_dataset(m_data, index));
     
@@ -406,15 +432,16 @@ PyArrayObject* Data::getDataAsLevelValue(int index)
     }
 
     Py_XDECREF(dict);
+    Py_XDECREF(titles);
+    Py_XDECREF(formats);
+    Py_XDECREF(m_dataset);
 
     // This is a dsCount x valueCount array.
-    PyArrayObject* dataset = (PyArrayObject *)PyArray_NewFromDescr(&PyArray_Type, dtype,
+    m_dataset = (PyArrayObject *)PyArray_NewFromDescr(&PyArray_Type, dtype,
             1, &valueCount, 0, nullptr, NPY_ARRAY_CARRAY, nullptr);
 
     double* buffer = new double[1024];
     size_t count = 0;
-    int bufs = std::ceil(valueCount/1024);
-    if (bufs == 0) bufs = 1;
     int indexStart = 0;
     int next = 1024;
 
@@ -423,7 +450,7 @@ PyArrayObject* Data::getDataAsLevelValue(int index)
         int remain = valueCount - indexStart;
         if (remain < 1024) next = remain;
         if (remain <= 0 ) break;
-        count = MDAL_D_data(MDAL_G_dataset(m_data, index), indexStart, next , MDAL_DataType::VERTICAL_LEVEL_DOUBLE, buffer);
+        count = MDAL_D_data( datasetH, indexStart, next , MDAL_DataType::VERTICAL_LEVEL_DOUBLE, buffer);
 
         if (count != next) 
         {
@@ -433,7 +460,7 @@ PyArrayObject* Data::getDataAsLevelValue(int index)
         int idx = 0;
         for (int i = 0; i < count; i++) 
         {
-            char* p = (char *)PyArray_GETPTR1(dataset, indexStart + i);
+            char* p = (char *)PyArray_GETPTR1(m_dataset, indexStart + i);
             double val = buffer[idx];
             idx++;
             std::memcpy(p, &val, 8);
@@ -441,7 +468,7 @@ PyArrayObject* Data::getDataAsLevelValue(int index)
         indexStart += count;
     }
     delete [] buffer;
-    return dataset;
+    return m_dataset;
 }
 
 MDAL_Status Data::setDataAsDouble(PyArrayObject* data, double time)
diff --git a/mdal/PyMesh.cpp b/mdal/PyMesh.cpp
index 2f4a051..1605819 100644
--- a/mdal/PyMesh.cpp
+++ b/mdal/PyMesh.cpp
@@ -225,7 +225,9 @@ PyArrayObject *Mesh::getFaces()
         if (PyArray_DescrConverter(dict, &dtype) == NPY_FAIL)
             {}
     //         throw pdal_error("Unable to build numpy dtype");
-        Py_XDECREF(dict);
+    Py_XDECREF(dict);
+    Py_XDECREF(titles);
+    Py_XDECREF(formats);
 
         npy_intp size = (npy_intp)faceCount();
 
@@ -292,7 +294,9 @@ PyArrayObject *Mesh::getEdges()
         if (PyArray_DescrConverter(dict, &dtype) == NPY_FAIL)
             {}
     //         throw pdal_error("Unable to build numpy dtype");
-        Py_XDECREF(dict);
+    Py_XDECREF(dict);
+    Py_XDECREF(titles);
+    Py_XDECREF(formats);
 
         npy_intp size = (npy_intp)edgeCount();
 
@@ -450,8 +454,9 @@ bool Mesh::addFaces(PyArrayObject* faces, long int count){
     PyObject *names_dict = dtype->fields;
     PyObject *names = PyDict_Keys(names_dict);
     PyObject *values = PyDict_Values(names_dict);
-    if (!names || !values) {}
+    if (!names || !values) {
         //throw pdal_error("Bad field specification in numpy array.");
+    }
 
     if (numFields< 3) {}
         //throw pdal_error("Faces"
diff --git a/mdal/__init__.py b/mdal/__init__.py
index 0f903fd..e74613e 100644
--- a/mdal/__init__.py
+++ b/mdal/__init__.py
@@ -11,7 +11,7 @@
 
 from mdal.transform import MDAL_transform
 
-__version__ = '1.0.1'
+__version__ = '1.0.2'
 
 
 class Info(object):
diff --git a/mdal/libmdalpython.pyx b/mdal/libmdalpython.pyx
index efb57ac..bc13f36 100644
--- a/mdal/libmdalpython.pyx
+++ b/mdal/libmdalpython.pyx
@@ -228,12 +228,13 @@ cdef class Datasource:
 
     def __cinit__(self, uri: Path, driver_name : str = None):   
         self.uri = str(uri)
-        if type(uri) != Path:
-            path = Path(uri)
+        if type(uri) == str:
+            uri = Path(uri)
+        print(uri)
         if driver_name:
             self.driver_name = driver_name
             return
-        if path.is_file():
+        if uri.is_file():
             try:
                 meshes = self.meshes
                 if len(meshes) > 0:
@@ -241,7 +242,7 @@ cdef class Datasource:
                     return
             except Exception:
                 pass
-        ex = path.suffix
+        ex = uri.suffix
         for driver in drivers():
             if ex in driver.filters:
                 self.driver_name = driver.name
diff --git a/mdal_python.egg-info/PKG-INFO b/mdal_python.egg-info/PKG-INFO
index e7e2dc1..7cc6be3 100644
--- a/mdal_python.egg-info/PKG-INFO
+++ b/mdal_python.egg-info/PKG-INFO
@@ -1,6 +1,6 @@
 Metadata-Version: 2.1
 Name: mdal-python
-Version: 1.0.0
+Version: 1.0.2
 Summary: Mesh data processing
 Home-page: https://www.mdal.xyz
 Author: Paul Harwood
@@ -21,6 +21,8 @@ Classifier: Programming Language :: Python :: 3.11
 Classifier: Topic :: Scientific/Engineering :: GIS
 Description-Content-Type: text/x-rst
 License-File: LICENSE
+Requires-Dist: numpy
+Requires-Dist: meshio
 
 ================================================================================
 MDAL Python Integration
@@ -28,6 +30,9 @@ MDAL Python Integration
 
 .. image:: https://img.shields.io/conda/vn/conda-forge/mdal-python.svg
    :target: https://anaconda.org/conda-forge/mdal-python
+   
+.. image:: https://badge.fury.io/py/mdal-python.svg
+   :target: https://badge.fury.io/py/mdal-python
 
 Basics
 ------
@@ -65,6 +70,17 @@ MDAL Python support is installable via Conda:
 
     conda install -c conda-forge mdal-python
 
+PyPI
+...............................................................................
+
+MDAL Python support can be installed using `pip`
+
+.. code-block::
+
+   pip install mdal-python
+   
+This will ONLY work if there is a valid and working installation of MDAL on the device and accessible through the device library search path.
+
 GitHub
 ................................................................................
 
diff --git a/mdal_python.egg-info/SOURCES.txt b/mdal_python.egg-info/SOURCES.txt
index db71b87..bc9d9a1 100644
--- a/mdal_python.egg-info/SOURCES.txt
+++ b/mdal_python.egg-info/SOURCES.txt
@@ -2,17 +2,20 @@ LICENSE
 README.rst
 pyproject.toml
 setup.py
-_skbuild/macosx-12.0-x86_64-3.10/cmake-install/mdal/__init__.py
-_skbuild/macosx-12.0-x86_64-3.10/cmake-install/mdal/conf.py
-_skbuild/macosx-12.0-x86_64-3.10/cmake-install/mdal/libmdalpython.cpython-310-darwin.so
-_skbuild/macosx-12.0-x86_64-3.10/cmake-install/mdal/transform.py
+_skbuild/win-amd64-3.11/cmake-install/mdal/__init__.py
+_skbuild/win-amd64-3.11/cmake-install/mdal/conf.py
+_skbuild/win-amd64-3.11/cmake-install/mdal/libmdalpython.cp311-win_amd64.pyd
+_skbuild/win-amd64-3.11/cmake-install/mdal/transform.py
+_skbuild/win-amd64-3.12/cmake-install/mdal/__init__.py
+_skbuild/win-amd64-3.12/cmake-install/mdal/conf.py
+_skbuild/win-amd64-3.12/cmake-install/mdal/libmdalpython.cp312-win_amd64.pyd
+_skbuild/win-amd64-3.12/cmake-install/mdal/transform.py
 mdal/__init__.py
 mdal/conf.py
 mdal/transform.py
 mdal_python.egg-info/PKG-INFO
 mdal_python.egg-info/SOURCES.txt
 mdal_python.egg-info/dependency_links.txt
-mdal_python.egg-info/not-zip-safe
 mdal_python.egg-info/requires.txt
 mdal_python.egg-info/top_level.txt
 test/test.py
diff --git a/mdal_python.egg-info/not-zip-safe b/mdal_python.egg-info/not-zip-safe
deleted file mode 100644
index 8b13789..0000000
--- a/mdal_python.egg-info/not-zip-safe
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/setup.py b/setup.py
index 3ef6942..41a7015 100644
--- a/setup.py
+++ b/setup.py
@@ -72,10 +72,10 @@
         'Intended Audience :: Science/Research',
         'License :: OSI Approved :: MIT License',
         'Operating System :: OS Independent',
-        'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
         'Topic :: Scientific/Engineering :: GIS',
     ],
 
diff --git a/test/data/save_test.nc b/test/data/save_test.nc
index 1015011..148ab89 100644
Binary files a/test/data/save_test.nc and b/test/data/save_test.nc differ
diff --git a/test/leak.py b/test/leak.py
new file mode 100644
index 0000000..d86a726
--- /dev/null
+++ b/test/leak.py
@@ -0,0 +1,18 @@
+from mdal import Datasource
+from pathlib import Path
+import gc
+
+mypath = "/Users/paulharwood/Downloads/results_3di.nc"
+ds = Datasource(mypath)
+
+for i in range(0,100):
+    print(i)
+    with ds.load() as mesh:
+        print("mesh loaded")
+        group = mesh.group(3)
+        print("group Loaded")
+        for j in range(0, group.dataset_count):
+            data = group.data(j)
+            print(data)
+            # make very sure the variable gets taken out of memory:
+            del(data)
\ No newline at end of file
diff --git a/test/leak2.py b/test/leak2.py
new file mode 100644
index 0000000..772c2a2
--- /dev/null
+++ b/test/leak2.py
@@ -0,0 +1,14 @@
+from mdal import Datasource
+from pathlib import Path
+import gc
+
+mypath = "/Users/paulharwood/Library/CloudStorage/GoogleDrive-runette@gmail.com/My Drive/Mesh Project/gpr_new.ply"
+ds = Datasource(mypath)
+
+with ds.load() as mesh:
+    print("mesh loaded")
+    for i in range(0,1000):
+        print(i)
+        group = mesh.group(3)
+        data = group.data(0)
+        print(data)
\ No newline at end of file
diff --git a/test/leak3.py b/test/leak3.py
new file mode 100644
index 0000000..ce7a4df
--- /dev/null
+++ b/test/leak3.py
@@ -0,0 +1,12 @@
+from mdal import Datasource
+from pathlib import Path
+import gc
+
+mypath = "/Users/paulharwood/Library/CloudStorage/GoogleDrive-runette@gmail.com/My Drive/Mesh Project/gpr_new.ply"
+ds = Datasource(mypath)
+
+with ds.load() as mesh:
+    print("mesh loaded")
+    for i in range(0,100000):
+        print(i)
+        vertices = mesh.vertices
\ No newline at end of file
diff --git a/test/save_test.ply b/test/save_test.ply
index 9fcf360..8f48c6c 100644
--- a/test/save_test.ply
+++ b/test/save_test.ply
@@ -1,9 +1,13 @@
 ply
 format ascii 1.0
+obj_info Generated by MDAL
+comment comment1: Generated by PDAL
+comment crs: EPSG:4326
+comment test: value
 element vertex 38487
-property double X
-property double Y
-property double Z
+property double x
+property double y
+property double z
 property double red
 property double green
 property double blue
diff --git a/test/save_test_2.ply b/test/save_test_2.ply
index c41c556..bbd84c0 100644
--- a/test/save_test_2.ply
+++ b/test/save_test_2.ply
@@ -1,9 +1,14 @@
 ply
 format ascii 1.0
+obj_info Generated by MDAL
+comment comment1: test file for MDAL
+comment crs: +proj=tmerc
+comment comment2: test1
+comment comment3: test2
 element vertex 5
-property double X
-property double Y
-property double Z
+property double x
+property double y
+property double z
 property double red
 property double green
 property double blue
diff --git a/test/test.py b/test/test.py
index fcc5d1a..5c5ffa9 100644
--- a/test/test.py
+++ b/test/test.py
@@ -37,7 +37,7 @@
 from mdal import Datasource, Info, last_status, PyMesh, drivers, MDAL_DataLocation, MDAL_transform
 
 import numpy as np
-import open3d as o3d
+
 
 print(f"MDAL Version:  {Info.version}")
 print(f"MDAL Driver Count :{Info.driver_count}")
@@ -194,21 +194,4 @@
     print(f"{mio2}")
 
 
-with Datasource("data/ply/test_mesh.ply").load() as mesh:
-    tm = MDAL_transform.to_triangle_mesh(mesh)
-    print(tm)
-    tm2 = o3d.io.read_triangle_mesh("data/ply/test_mesh.ply")
-    tmc = np.asarray(tm.vertex_colors)
-    tmc2 = np.asarray(tm2.vertex_colors)
-    for i in range(len(tmc)):
-        value = tmc[i] - tmc2[i]
-        if not (value == [0, 0, 0]).all():
-            print(value)
-            break
-
-with Datasource("test_vol.ply").load() as mesh:
-    pc = MDAL_transform.to_point_cloud(mesh.group(1))
-    print(pc)
-
-
 print("all finished !")
diff --git a/test/test.vtk b/test/test.vtk
index d6fa98c..8d22899 100644
Binary files a/test/test.vtk and b/test/test.vtk differ
diff --git a/test/test_vol.ply b/test/test_vol.ply
index cdf2712..2055b55 100644
Binary files a/test/test_vol.ply and b/test/test_vol.ply differ