diff --git a/.gitmodules b/.gitmodules
index 9833ed4832..fa9dff4101 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -5,3 +5,6 @@
 [submodule "src/ifcopenshell-python/ifcopenshell/mvd"]
 	path = src/ifcopenshell-python/ifcopenshell/mvd
 	url = https://github.com/opensourceBIM/python-mvdxml/
+[submodule "src/svgfill"]
+	path = src/svgfill
+	url = https://github.com/IfcOpenShell/svgfill
diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 8fbc049495..d032ebc434 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -21,7 +21,12 @@ cmake_minimum_required(VERSION 3.1.3)
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)  # not necessary, but encouraged
 
-project (IfcOpenShell VERSION 0.6.0)
+project (IfcOpenShell VERSION 0.7.0)
+
+cmake_policy(SET CMP0048 NEW)
+cmake_policy(SET CMP0074 NEW)
+cmake_policy(SET CMP0078 OLD)
+cmake_policy(SET CMP0086 NEW)
 
 # use extra version to make pre-release using eg semver
 set( EXTRA_VERSION "-alpha.3")
@@ -123,6 +128,13 @@ UNIFY_ENVVARS_AND_CACHE(HDF5_LIBRARIES)
 UNIFY_ENVVARS_AND_CACHE(BOOST_ROOT)
 UNIFY_ENVVARS_AND_CACHE(BOOST_LIBRARYDIR)
 
+UNIFY_ENVVARS_AND_CACHE(CGAL_INCLUDE_DIR)
+UNIFY_ENVVARS_AND_CACHE(CGAL_LIBRARY_DIR)
+UNIFY_ENVVARS_AND_CACHE(GMP_INCLUDE_DIR)
+UNIFY_ENVVARS_AND_CACHE(GMP_LIBRARY_DIR)
+UNIFY_ENVVARS_AND_CACHE(MPFR_INCLUDE_DIR)
+UNIFY_ENVVARS_AND_CACHE(MPFR_LIBRARY_DIR)
+
 if (GLTF_SUPPORT AND BUILD_CONVERT)
 UNIFY_ENVVARS_AND_CACHE(JSON_INCLUDE_DIR)
 FIND_FILE(json_hpp "json.hpp" ${JSON_INCLUDE_DIR}/nlohmann)
@@ -779,6 +791,8 @@ IF(BUILD_IFCMAX)
 	ADD_SUBDIRECTORY(../src/ifcmax ifcmax)
 ENDIF()
 
+ADD_SUBDIRECTORY(../src/svgfill svgfill)
+
 # CMake installation targets
 INSTALL(FILES ${IFCPARSE_H_FILES}
 	DESTINATION ${INCLUDEDIR}/ifcparse
diff --git a/src/ifcwrap/CMakeLists.txt b/src/ifcwrap/CMakeLists.txt
index 25455fb444..317c4c1c97 100644
--- a/src/ifcwrap/CMakeLists.txt
+++ b/src/ifcwrap/CMakeLists.txt
@@ -53,12 +53,12 @@ IF (WIN32 AND NOT PYTHON_DEBUG_LIBRARIES)
 ENDIF()
 
 SET_SOURCE_FILES_PROPERTIES(IfcPython.i PROPERTIES CPLUSPLUS ON)
-SWIG_ADD_MODULE(ifcopenshell_wrapper python IfcPython.i)
+swig_add_library(ifcopenshell_wrapper LANGUAGE python SOURCES IfcPython.i)
 if("$ENV{LDFLAGS}" MATCHES ".undefined.suppress")
 # On osx there is some state in the python dylib. With `-Wl,undefined,suppress` we can ignore the missing symbols at compile time.
-SWIG_LINK_LIBRARIES(ifcopenshell_wrapper ${IFCOPENSHELL_LIBRARIES} ${OPENCASCADE_LIBRARIES} ${Boost_LIBRARIES})
+SWIG_LINK_LIBRARIES(ifcopenshell_wrapper ${IFCOPENSHELL_LIBRARIES} ${OPENCASCADE_LIBRARIES} ${Boost_LIBRARIES} libsvgfill)
 else()
-SWIG_LINK_LIBRARIES(ifcopenshell_wrapper ${IFCOPENSHELL_LIBRARIES} ${PYTHON_LIBRARIES} ${OPENCASCADE_LIBRARIES} ${Boost_LIBRARIES})
+SWIG_LINK_LIBRARIES(ifcopenshell_wrapper ${IFCOPENSHELL_LIBRARIES} ${PYTHON_LIBRARIES} ${OPENCASCADE_LIBRARIES} ${Boost_LIBRARIES} libsvgfill)
 endif()
 if ((NOT WIN32) AND BUILD_SHARED_LIBS)
     SET_INSTALL_RPATHS(${SWIG_MODULE_ifcopenshell_wrapper_REAL_NAME} "${IFCDIRS};${OCC_LIBRARY_DIR}")
diff --git a/src/ifcwrap/IfcGeomWrapper.i b/src/ifcwrap/IfcGeomWrapper.i
index 1ef249fbe2..83853e1543 100644
--- a/src/ifcwrap/IfcGeomWrapper.i
+++ b/src/ifcwrap/IfcGeomWrapper.i
@@ -502,3 +502,42 @@ struct ShapeRTTI : public boost::static_visitor<PyObject*>
 		return IfcGeom::tesselate(schema_name, shp, d);
 	}
 %}
+
+%ignore svgfill::svg_to_line_segments;
+%ignore svgfill::line_segments_to_polygons;
+
+%template(svg_line_segments) std::vector<std::array<svgfill::point_2, 2>>;
+%template(svg_groups_of_line_segments) std::vector<std::vector<std::array<svgfill::point_2, 2>>>;
+%template(svg_point) std::array<double, 2>;
+%template(line_segment) std::array<svgfill::point_2, 2>;
+%template(svg_polygons) std::vector<svgfill::polygon_2>;
+%template(svg_groups_of_polygons) std::vector<std::vector<svgfill::polygon_2>>;
+%template(svg_loop) std::vector<std::array<double, 2>>;
+%template(svg_loops) std::vector<std::vector<std::array<double, 2>>>;
+
+%naturalvar svgfill::polygon_2::boundary;
+%naturalvar svgfill::polygon_2::inner_boundaries;
+%naturalvar svgfill::polygon_2::point_inside;
+
+%include "../svgfill/src/svgfill.h"
+
+%inline %{
+	std::vector<std::vector<svgfill::line_segment_2>> svg_to_line_segments(const std::string& data, const boost::optional<std::string>& class_name) {
+		std::vector<std::vector<svgfill::line_segment_2>> r;
+		if (svgfill::svg_to_line_segments(data, class_name, r)) {
+			return r;
+		} else {
+			throw std::runtime_error("Failed to read SVG");
+		}
+	}
+
+	std::vector<std::vector<svgfill::polygon_2>> line_segments_to_polygons(svgfill::solver s, double eps, const std::vector<std::vector<svgfill::line_segment_2>>& segments) {
+		std::vector<std::vector<svgfill::polygon_2>> r;
+		if (svgfill::line_segments_to_polygons(s, eps, segments, r)) {
+			return r;
+		} else {
+			throw std::runtime_error("Failed to read SVG");
+		}
+	}
+%}
+
diff --git a/src/ifcwrap/IfcPython.i b/src/ifcwrap/IfcPython.i
index 510e6b276d..7af36d71e1 100644
--- a/src/ifcwrap/IfcPython.i
+++ b/src/ifcwrap/IfcPython.i
@@ -48,6 +48,7 @@
 %}
 
 %include "std_array.i"
+%include "std_vector.i"
 %include "std_string.i"
 %include "exception.i"
 
@@ -111,6 +112,8 @@
 	#include "../ifcparse/IfcSchema.h"
 	#include "../ifcparse/utils.h"
 
+	#include "../svgfill/src/svgfill.h"
+
 	#include <BRepTools_ShapeSet.hxx>
 %}
 
@@ -155,6 +158,8 @@
 	#include "../ifcparse/IfcSchema.h"
 	#include "../ifcparse/utils.h"
 
+	#include "../svgfill/src/svgfill.h"
+
 	#include <BRepTools_ShapeSet.hxx>
 %}
 
diff --git a/src/svgfill b/src/svgfill
new file mode 160000
index 0000000000..77f2329351
--- /dev/null
+++ b/src/svgfill
@@ -0,0 +1 @@
+Subproject commit 77f23293510fdf5216ea17801299c1f4dc0a8820
diff --git a/win/build-deps.cmd b/win/build-deps.cmd
index cd574f49bc..d4872933c2 100644
--- a/win/build-deps.cmd
+++ b/win/build-deps.cmd
@@ -116,6 +116,11 @@ if "%CMAKE_VERSION%" LSS "cmake version 3.11.4" (
     goto :ErrorAndPrintUsage
 )
 
+:: NOTE Boost < 1.64 doesn't work without tricks if the user has only VS 2017 installed and no earlier versions.
+set BOOST_VERSION=1.74.0
+:: Version string with underscores instead of dots.
+set BOOST_VER=%BOOST_VERSION:.=_%
+
 :: Print build configuration information
 
 call cecho.cmd 0 10 "Script configuration:"
@@ -191,10 +196,6 @@ popd
 :: Note all of the dependencies have appropriate label so that user can easily skip something if wanted
 :: by modifying this file and using goto.
 :Boost
-:: NOTE Boost < 1.64 doesn't work without tricks if the user has only VS 2017 installed and no earlier versions.
-set BOOST_VERSION=1.74.0
-:: Version string with underscores instead of dots.
-set BOOST_VER=%BOOST_VERSION:.=_%
 :: DEPENDENCY_NAME is used for logging and DEPENDENCY_DIR for saving from some redundant typing
 set DEPENDENCY_NAME=Boost %BOOST_VERSION%
 set DEPENDENCY_DIR=%DEPS_DIR%\boost_%BOOST_VER%
@@ -428,6 +429,68 @@ IF EXIST "%DEPS_DIR%\swigwin-%SWIG_VERSION%". (
 )
 IF EXIST "%DEPS_DIR%\swigwin\". robocopy "%DEPS_DIR%\swigwin" "%INSTALL_DIR%\swigwin" /E /IS /MOVE /njh /njs
 
+:mpir
+set DEPENDENCY_NAME=mpir
+set DEPENDENCY_DIR=%DEPS_DIR%\mpir
+call :GitCloneAndCheckoutRevision https://github.com/BrianGladman/mpir.git "%DEPENDENCY_DIR%"
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+cd "%DEPENDENCY_DIR%"
+git reset --hard
+REM There probably need to be quotes here around the filename
+powershell -c "get-content %~dp0patches\mpir.patch | %%{$_ -replace \"sdk\",\"%UCRTVersion%\"} | %%{$_ -replace \"fn\",\"lib_mpir_cxx\"}" | git apply --unidiff-zero
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+powershell -c "get-content %~dp0patches\mpir.patch | %%{$_ -replace \"sdk\",\"%UCRTVersion%\"} | %%{$_ -replace \"fn\",\"lib_mpir_gc\"}" | git apply --unidiff-zero
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+if NOT "%USE_STATIC_RUNTIME%"=="FALSE" git apply "%~dp0patches\mpir_runtime.patch" --unidiff-zero
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+cd msvc
+cd vs%VS_VER:~2,2%
+call .\msbuild.bat gc LIB %VS_PLATFORM% Release
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+IF NOT EXIST "%INSTALL_DIR%\mpir". mkdir "%INSTALL_DIR%\mpir"
+copy ..\..\lib\%VS_PLATFORM%\Release\* "%INSTALL_DIR%\mpir"
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+
+:mpfr
+set DEPENDENCY_NAME=mpfr
+set DEPENDENCY_DIR=%DEPS_DIR%\mpfr
+call :GitCloneAndCheckoutRevision https://github.com/BrianGladman/mpfr.git "%DEPENDENCY_DIR%" 2ebbe10fd029a480cf6e8a64c493afa9f3654251
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+cd "%DEPENDENCY_DIR%"
+git reset --hard
+powershell -c "get-content %~dp0patches\mpfr.patch | %%{$_ -replace \"sdk\",\"%UCRTVersion%\"} | %%{$_ -replace \"fn\",\"lib_mpfr\"}" | git apply --unidiff-zero
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+if NOT "%USE_STATIC_RUNTIME%"=="FALSE" git apply "%~dp0patches\mpfr_runtime.patch" --unidiff-zero
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+call :BuildSolution "%DEPENDENCY_DIR%\build.vc15\lib_mpfr.sln" %DEBUG_OR_RELEASE% lib_mpfr
+REM This command fails because not all msvc projects are patched with the right sdk version
+IF NOT EXIST lib\%VS_PLATFORM%\Release\mpfr.lib GOTO :Error
+IF NOT EXIST "%INSTALL_DIR%\mpfr". mkdir "%INSTALL_DIR%\mpfr"
+copy lib\%VS_PLATFORM%\Release\* "%INSTALL_DIR%\mpfr"
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+
+:cgal
+set DEPENDENCY_NAME=cgal
+set DEPENDENCY_DIR=%DEPS_DIR%\cgal
+call :GitCloneAndCheckoutRevision https://github.com/CGAL/cgal.git "%DEPENDENCY_DIR%" v5.2.3
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+cd "%DEPENDENCY_DIR%"
+git reset --hard
+git apply "%~dp0patches\cgal_no_zlib.patch"
+call :RunCMake -DCMAKE_INSTALL_PREFIX="%INSTALL_DIR%\cgal"    ^
+               -DBOOST_ROOT="%DEPS_DIR%\boost_%BOOST_VER%"    ^
+               -DGMP_INCLUDE_DIR="%INSTALL_DIR%\mpir"         ^
+               -DGMP_LIBRARIES="%INSTALL_DIR%\mpir\mpir.lib"  ^
+               -DMPFR_INCLUDE_DIR="%INSTALL_DIR%\mpfr"        ^
+               -DMPFR_LIBRARIES="%INSTALL_DIR%\mpfr\mpfr.lib" ^
+               -DBUILD_SHARED_LIBS=On                         ^
+               -DBOOST_LIBRARYDIR="%DEPS_DIR%\boost_%BOOST_VER%\stage\vs%VS_VER%-%VS_PLATFORM%\lib"
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+call :BuildSolution "%DEPENDENCY_DIR%\%BUILD_DIR%\CGAL.sln" %BUILD_CFG%
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+call :InstallCMakeProject "%DEPENDENCY_DIR%\%BUILD_DIR%" %BUILD_CFG%
+IF NOT %ERRORLEVEL%==0 GOTO :Error
+
 :Successful
 echo.
 call "%~dp0\utils\cecho.cmd" 0 10 "%PROJECT_NAME% dependencies built."
@@ -504,6 +567,7 @@ if not exist "%~2". (
     set RET=%ERRORLEVEL%
 ) else (
     call cecho.cmd 0 13 "%DEPENDENCY_NAME% already cloned. Pulling latest changes."
+    git reset --hard
     pushd %2
     call git pull
     set RET=0
@@ -520,7 +584,7 @@ if not exist "%~2". (
     pushd "%DEPS_DIR%"
     call git clone %1 %2
     set RET=%ERRORLEVEL%
-    if not %RET%==0 exit /b %RET%
+    if not "%RET%"=="0" exit /b %RET%
     popd
 ) else (
     call cecho.cmd 0 13 "%DEPENDENCY_NAME% already cloned."
diff --git a/win/patches/cgal_no_zlib.patch b/win/patches/cgal_no_zlib.patch
new file mode 100644
index 0000000000..1b24a17e19
--- /dev/null
+++ b/win/patches/cgal_no_zlib.patch
@@ -0,0 +1,13 @@
+diff --git a/Installation/cmake/modules/CGAL_SetupCGAL_ImageIODependencies.cmake b/Installation/cmake/modules/CGAL_SetupCGAL_ImageIODependencies.cmake
+index 8ac856d037..742fa8df69 100644
+--- a/Installation/cmake/modules/CGAL_SetupCGAL_ImageIODependencies.cmake
++++ b/Installation/cmake/modules/CGAL_SetupCGAL_ImageIODependencies.cmake
+@@ -23,7 +23,7 @@ set(CGAL_SetupCGAL_ImageIODependencies_included TRUE)
+ # Used Modules
+ # ^^^^^^^^^^^^
+ #   - :module:`FindZLIB`
+-find_package( ZLIB )
++# find_package( ZLIB )
+ 
+ define_property(TARGET PROPERTY CGAL_TARGET_USES_ZLIB
+   BRIEF_DOCS "Tells if the target uses ZLIB as a dependency"
diff --git a/win/patches/mpfr.patch b/win/patches/mpfr.patch
new file mode 100644
index 0000000000..676fad4be7
--- /dev/null
+++ b/win/patches/mpfr.patch
@@ -0,0 +1,5 @@
+--- a/build.vc15/fn/fn.vcxproj
++++ a/build.vc15/fn/fn.vcxproj
+@@ -25 +25 @@
+-    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
++    <WindowsTargetPlatformVersion>sdk</WindowsTargetPlatformVersion>
diff --git a/win/patches/mpfr_runtime.patch b/win/patches/mpfr_runtime.patch
new file mode 100644
index 0000000000..0152fba603
--- /dev/null
+++ b/win/patches/mpfr_runtime.patch
@@ -0,0 +1,10 @@
+diff --git a/build.vc15/lib_mpfr/lib_mpfr.vcxproj b/build.vc15/lib_mpfr/lib_mpfr.vcxproj
+index a3c72e48..85da0bcc 100644
+--- a/build.vc15/lib_mpfr/lib_mpfr.vcxproj
++++ b/build.vc15/lib_mpfr/lib_mpfr.vcxproj
+@@ -148 +148 @@
+-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
++      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+@@ -179 +179 @@
+-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
++      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
diff --git a/win/patches/mpir.patch b/win/patches/mpir.patch
new file mode 100644
index 0000000000..0bbb105617
--- /dev/null
+++ b/win/patches/mpir.patch
@@ -0,0 +1,7 @@
+diff --git a/msvc/vs17/fn/fn.vcxproj b/msvc/vs17/fn/fn.vcxproj
+index d8d87f8f..e543adc8 100644
+--- a/msvc/vs17/fn/fn.vcxproj
++++ b/msvc/vs17/fn/fn.vcxproj
+@@ -25 +25 @@
+-    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
++    <WindowsTargetPlatformVersion>sdk</WindowsTargetPlatformVersion>
diff --git a/win/patches/mpir_runtime.patch b/win/patches/mpir_runtime.patch
new file mode 100644
index 0000000000..abb5f0bc86
--- /dev/null
+++ b/win/patches/mpir_runtime.patch
@@ -0,0 +1,13 @@
+diff --git a/msvc/mpir_release_lib.props b/msvc/mpir_release_lib.props
+index d46f9649..832c6937 100644
+--- a/msvc/mpir_release_lib.props
++++ b/msvc/mpir_release_lib.props
+@@ -9,7 +9,7 @@
+   <ItemDefinitionGroup>
+     <ClCompile>
+       <ObjectFileName>$(IntDir)du\m\my\%(RelativeDir)</ObjectFileName>
+-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
++      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+       <ProgramDataBaseFileName>$(TargetDir)$(TargetName).pdb</ProgramDataBaseFileName>
+     </ClCompile>
+     <Link>
diff --git a/win/run-cmake.bat b/win/run-cmake.bat
index 41617e964c..e682d22327 100755
--- a/win/run-cmake.bat
+++ b/win/run-cmake.bat
@@ -102,6 +102,13 @@ set SWIG_DIR=%INSTALL_DIR%\swigwin
 set PATH=%PATH%;%SWIG_DIR%;%PYTHONHOME%
 set JSON_INCLUDE_DIR=%INSTALL_DIR%\json
 
+set CGAL_INCLUDE_DIR=%INSTALL_DIR%\cgal\include
+set CGAL_LIBRARY_DIR=%INSTALL_DIR%\cgal\lib
+set GMP_INCLUDE_DIR=%INSTALL_DIR%\mpir
+set GMP_LIBRARY_DIR=%INSTALL_DIR%\mpir
+set MPFR_INCLUDE_DIR=%INSTALL_DIR%\mpfr
+set MPFR_LIBRARY_DIR=%INSTALL_DIR%\mpfr
+
 echo.
 call cecho.cmd 0 10 "Script configuration:"
 echo   Generator    = %GENERATOR%
@@ -127,6 +134,13 @@ echo    PYTHON_EXECUTABLE       = %PYTHON_EXECUTABLE%
 echo    SWIG_DIR                = %SWIG_DIR%
 echo    JSON_INCLUDE_DIR        = %JSON_INCLUDE_DIR%
 echo.
+echo    CGAL_INCLUDE_DIR        = %CGAL_INCLUDE_DIR%
+echo    CGAL_LIBRARY_DIR        = %CGAL_LIBRARY_DIR%
+echo    GMP_INCLUDE_DIR         = %GMP_INCLUDE_DIR%
+echo    GMP_LIBRARY_DIR         = %GMP_LIBRARY_DIR%
+echo    MPFR_INCLUDE_DIR        = %MPFR_INCLUDE_DIR%
+echo    MPFR_LIBRARY_DIR        = %MPFR_LIBRARY_DIR%
+echo.
 echo    CMAKE_INSTALL_PREFIX    = %CMAKE_INSTALL_PREFIX%
 echo.