1 The following comments are intended for core gdcm developpers.
4 - Checkout the sources to an arbitrary directory noted GDCM (e.g. ~/cvs/gdcm).
5 - Checkout the test images to an arbitrary directory noted GDCMDATA
6 (e.g. ~/cvs/gdcm/gdcmData).
7 - Optionally create a temporary installation directory GDCMINSTALL e.g.
9 - Create a target directory GDCMBIN e.g.
11 - Configure cmake from GDCMBIN:
14 * Toggle and adjust the required options and parameters, mainly
15 -- GDCM_DATA_ROOT should be set to GDCMDATA
16 -- CMAKE_INSTALL_PREFIX (equivalent of --prefix of the autotools)
17 should be set to GDCMINSTALL
18 -- CMAKE_BUILD_TYPE set to Debug or Release
20 -- GDCM_VTK When this option is on VTK_DIR might require manual
23 * Configure cmake: hit c
24 * Generate the makefiles (or dsw): hit g
27 - Run the tests manually (optional):
28 Caveat: if you run the tests before installing, you NEED to positionate
29 the environment variable GDCM_DICT_PATH to GDCM/Dicts e.g.
30 export GDCM_DICT_PATH=~/cvs/gdcm/Dicts
31 Assuming your cwd is GDCMBIN, three modes are then available:
32 -- 1/ acces to a by number:
34 -- 2/ acces to a test by it's name, by passing it as argument to
36 ./Test/gdcmCxxTests hashtest
37 -- 3/ launch all the full test suite (again we assume cwd is GDCMBIN):
39 This is equivalent to "make test".
40 Note: ctest supports the argument filtering with regexp and
43 proposes the tests containing "print" in their name and
44 makes a verbose output. For other options refer to the
45 documentation at http://www.cmake.org.
47 * Sending the result to kitware's dashboard (optional)
49 The results should appear in
50 http://public.kitware.com/dashboard.php?name=public
51 under the name GDCM-* within the "Experimental Builds" entry.
53 * Install gdcm (as specified by CMAKE_INSTALL_PREFIX)
55 Note: the dictionaries used by gdcm are now located in
56 CMAKE_INSTALL_PREFIX + /share/ (i.e. GDCMINSTALL + /share/ if you
57 followed the above instructions).
59 * Python related section.
60 Depending on the automake/autoconf/autogen.sh flags you used gdcm could
61 be wrapped in two ways:
62 - the first python wrappers of gdcm uses Swig (http://www.swig.org). These
63 are the one generated when using autogen.sh --enable-python.
64 The entry point here is the file gdcmPython/gdcm.i which uses the
65 Swig syntax. As the last lines of this file (the ones starting
66 with the %include directive) only some classes are wrapped for python.
67 In theory only the library interface (basically the classes gdcmHeader
68 and gdcmFile) should be wrapped, but the time being some additional
69 classes are added (just to make sure those classes are Swig compatible:
70 swig is here used as some link checker!?).
71 Since gdcm is written in C++, Swig will produce two different outputs:
72 -- some C based low level wrapper (see gdcmPython/gdcm_wrap.c)
73 -- some Python based object oriented so called "shadow classes" (see
74 file gdcmPython/gdcm.py)
75 We also added the file gdcmPython/__init__.py which is the one that
76 actually gets loaded when one uses the gdcmPython Python package.
77 The file __init__.py loads the Swig generated shadow classes (gdcm.py)
78 but will only re-export the interface of gdcm which corresponds to
80 gdcmHeader = gdcm.gdcmHeader
81 gdcmDictSet = gdcm.gdcmDictSet
82 gdcmFile = gdcm.gdcmFile
84 Hence this whole Swig wrapping process is quite odd since we shall
85 wrap more classes (%include in swig.i) that eventually get exported to
86 the final user by gdcmPython/__init__.py.
87 - the second python wrappers uses the vtk (http://public.kitware.com/VTK/)
88 native wrappers i.e. the binary vtkWrapPython. But it should be noticed
89 that the purpose is here a bit different than the one of the Swig
90 generated Python wrappers. When using vtkWrapPython the goal is to
91 wrap a single vtk class namely vtkGdcmReader as defined in files
92 vtk/vtkGdcmReader.h and vtk/vtkGdcmReader.cxx (and of course those
93 files are hand made vtk oriented wrappers of gdcm).
94 Those wrappers are the one generated when using
95 autogen.sh --enable-python --enable-vtk
96 - In order to understand the difference between both wrappers you should
97 compare both demo scripts gdcmPython/demo/vtkGdcmDemo.py and
98 gdcmPython/demo/vtkGdcmReader.py. The first one only uses the
99 Swig wrapped classes ("from gdcmPython import gdcmHeader') as opposed
100 to vtkGdcmReader.py which also uses vtkWrapPython wrapped classes
101 ("from gdcmPython.vtkgdcmPython import *").