Create #8561dibya

#8561dibya

@@ -0,0 +1,117 @@
+cmake_minimum_required(VERSION 3.12...3.29)
+project(CGAL_ipelets_Demo)
+
+if(NOT POLICY CMP0070 AND POLICY CMP0053)
+  # Only set CMP0053 to OLD with CMake<3.10, otherwise there is a warning.
+  cmake_policy(SET CMP0053 OLD)
+endif()
+
+macro(remove_leading_zero var)
+  string(SUBSTRING "${${var}}" 0 1 ONECHAR)
+  string(COMPARE EQUAL "${ONECHAR}" "0" ISZERO)
+  if(${ISZERO})
+    string(SUBSTRING "${${var}}" 1 1 ONECHAR)
+    set(${var} ${ONECHAR})
+  endif()
+endmacro()
+
+#path where to build libraries
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_RUNTIME_OUTPUT_DIRECTORY}")
+
+find_package(CGAL REQUIRED COMPONENTS Core)
+
+find_package(Eigen3 3.1.0 QUIET) #(requires 3.1.0 or greater)
+include(CGAL_Eigen3_support)
+if(NOT TARGET CGAL::Eigen3_support)
+  message("NOTICE: This project requires the Eigen library, and will not be compiled.")
+  return()
+endif()
+
+find_package(IPE 7)
+if(IPE_FOUND)
+  if(NOT ${IPE_VERSION} EQUAL "7")
+    message("NOTICE: ${IPE_VERSION} is not a supported version of IPE (only 7 is).")
+    set(IPE_FOUND FALSE)
+  endif()
+endif()
+
+if(IPE_FOUND AND IPE_VERSION)
+  message("-- Using IPE version ${IPE_VERSION} compatibility.")
+
+  #setting installation directory
+  get_filename_component(IPE_LIBRARY_DIR ${IPE_LIBRARIES} PATH)
+  if (IPE_FOUND AND NOT IPELET_INSTALL_DIR)
+      remove_leading_zero(IPE_MINOR_VERSION_1)
+      remove_leading_zero(IPE_MINOR_VERSION_2)
+      set(INSTALL_PATHS "${IPE_LIBRARY_DIR}/ipe/7.${IPE_MINOR_VERSION_1}.${IPE_MINOR_VERSION_2}/ipelets/")
+      find_path(IPELET_INSTALL_DIR
+                    NAMES libgoodies.lua goodies.lua
+                    PATHS ${INSTALL_PATHS}
+                    DOC "The folder where ipelets will be installed"
+                    ENV IPELETPATH
+                   )
+  endif()
+
+  set(CGAL_IPELETS ${CGAL_IPELETS} simple_triangulation) //dibya here is the change 
+  set(CGAL_IPELETS ${CGAL_IPELETS} alpha_shapes)
+  set(CGAL_IPELETS ${CGAL_IPELETS} arrangement)
+  set(CGAL_IPELETS ${CGAL_IPELETS} bbox_restriction)
+  set(CGAL_IPELETS ${CGAL_IPELETS} diagrams)
+  set(CGAL_IPELETS ${CGAL_IPELETS} hilbert_sort)
+  set(CGAL_IPELETS ${CGAL_IPELETS} hull)
+  set(CGAL_IPELETS ${CGAL_IPELETS} generator)
+  set(CGAL_IPELETS ${CGAL_IPELETS} mesh_2)
+  set(CGAL_IPELETS ${CGAL_IPELETS} minkowski)
+  set(CGAL_IPELETS ${CGAL_IPELETS} mst)
+  set(CGAL_IPELETS ${CGAL_IPELETS} nearest_neighbor_graph)
+  set(CGAL_IPELETS ${CGAL_IPELETS} multi_delaunay)
+  set(CGAL_IPELETS ${CGAL_IPELETS} multi_regular)
+  set(CGAL_IPELETS ${CGAL_IPELETS} partition)
+  set(CGAL_IPELETS ${CGAL_IPELETS} pca)
+  set(CGAL_IPELETS ${CGAL_IPELETS} skeleton)
+  set(CGAL_IPELETS ${CGAL_IPELETS} svdlinf)
+  set(CGAL_IPELETS ${CGAL_IPELETS} triangulation)
+  set(CGAL_IPELETS ${CGAL_IPELETS} circle_pencils)
+  set(CGAL_IPELETS ${CGAL_IPELETS} hyperbolic)
+  set(CGAL_IPELETS ${CGAL_IPELETS} distance)
+  if(CGAL_Core_FOUND)
+    set(CGAL_IPELETS ${CGAL_IPELETS} cone_spanners)
+  endif()
+
+  if(IPELET_INSTALL_DIR)
+    message(STATUS "Set Ipelets install dir: ${IPELET_INSTALL_DIR}")
+  endif()
+
+  include(${CGAL_MODULES_DIR}/CGAL_add_test.cmake)
+
+  foreach(IPELET ${CGAL_IPELETS})
+    add_library(CGAL_${IPELET} MODULE ${IPELET}.cpp)
+    target_include_directories(CGAL_${IPELET} BEFORE PRIVATE ${IPE_INCLUDE_DIR})
+
+    add_to_cached_list(CGAL_EXECUTABLE_TARGETS CGAL_${IPELET})
+    target_link_libraries(CGAL_${IPELET} PRIVATE CGAL::CGAL CGAL::Eigen3_support
+                                                 ${IPE_LIBRARIES})
+    if(IPELET_INSTALL_DIR)
+      install(TARGETS CGAL_${IPELET} DESTINATION ${IPELET_INSTALL_DIR})
+      install(FILES ./lua/libCGAL_${IPELET}.lua DESTINATION ${IPELET_INSTALL_DIR}) #only for ipe 7
+    endif ()
+    cgal_add_compilation_test(CGAL_${IPELET})
+  endforeach(IPELET)
+  if(CGAL_Core_FOUND)
+    target_link_libraries(CGAL_cone_spanners PRIVATE CGAL::CGAL CGAL::CGAL_Core
+                                                     CGAL::Eigen3_support)
+  endif()
+  #example in doc not installed
+  add_library(simple_triangulation MODULE simple_triangulation.cpp)
+  add_to_cached_list(CGAL_EXECUTABLE_TARGETS simple_triangulation)
+  target_link_libraries(simple_triangulation CGAL::CGAL CGAL::Eigen3_support
+                        ${IPE_LIBRARIES})
+  target_include_directories(simple_triangulation BEFORE PRIVATE ${IPE_INCLUDE_DIR})
+  if (WITH_IPE_7)
+      target_compile_definitions(simple_triangulation PRIVATE CGAL_USE_IPE_7)
+    endif()
+  cgal_add_compilation_test(simple_triangulation)
+
+else()
+  message("NOTICE: This project requires the Ipe include files and library, and will not be compiled.")
+endif()