fix typo

README.md

@@ -29,19 +29,17 @@ API, file formats and command‑line interface are all subject to change.
 
 ```bash
 git clone https://codeberg.org/user2595/ConformalLabpp
-cd conformallabpp
-git submodule update --init --recursive  
+cd conformallabpp/code  
 ```
 
 ### Configure and build
 ```bash
-cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
-cmake --build build
-Run a simple example
+cmake -S . -B build && cmake --build build
 ```
+
+### Run the binare
 ```bash
-# ./build/bin/conformallabpp
-(Example command, to be adapted once the first tools are implemented.)
+ ./bin/conformallab_core --input ./data/off/simple_cupe.off
 ```
 ### License
 conformallabpp is released under the MIT License (see LICENSE).

code/.gitignore

@@ -8,12 +8,14 @@ build/
 # Dependencies: Tarballs immer committen, entpackte ignorieren
 
 # exclude alle subdirs von depd without excluding the tarballs and single_includes
-deps/*/*/
-!deps/tarballs/*.tar.*
+deps/*
+!deps/tarballs
 !deps/single_includes/
-!deps/Cmakelists.txt
+!deps/CMakeLists.txt
 
 
+bin
+
 # IDEs
 .vscode/
 .idea/

code/CMakeLists.txt

@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.20)
 
 set(PROJECT_NAME "conformallab_core")
 
-project(${PROJECT_NAME} LANGUAGES CXX)
+project(${PROJECT_NAME} LANGUAGES C CXX)
 
 message(STATUS "Configuring ${PROJECT_NAME}...")
 
@@ -32,8 +32,11 @@ endif()
 
 add_subdirectory(deps)
 
+add_subdirectory(deps/glfw-3.4)
+
+
 # --------- Executable ---------
-add_executable(${PROJECT_NAME} src/apps/conformallab_cli.cpp src/apps/unwarp_job.cpp)
+add_executable(${PROJECT_NAME} src/apps/v0/conformallab_cli.cpp )
 
 target_include_directories(${PROJECT_NAME} PRIVATE
   ${CMAKE_CURRENT_SOURCE_DIR}/include
@@ -42,9 +45,28 @@ target_include_directories(${PROJECT_NAME} PRIVATE
   ${CMAKE_CURRENT_SOURCE_DIR}/deps/CGAL-6.1.1/include
   ${CMAKE_CURRENT_SOURCE_DIR}/deps/boost_1_90_0/
   ${CMAKE_CURRENT_SOURCE_DIR}/deps/libigl-2.6.0/include
+  ${CMAKE_CURRENT_SOURCE_DIR}/deps/libigl-glad/include
+)
+
+
+add_library(glad STATIC
+    ${CMAKE_CURRENT_SOURCE_DIR}/deps/libigl-glad/src/glad.c
+)
+target_include_directories(glad PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}/deps/libigl-glad/include
+)
+
+target_compile_definitions(${PROJECT_NAME} PRIVATE
+    CGAL_DISABLE_GMP
+    CGAL_DISABLE_MPFR
 )
 
 # Output-Ordner
 set_target_properties(${PROJECT_NAME} PROPERTIES
-  RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin
+  RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/bin
+
 )
+target_link_libraries(${PROJECT_NAME}
+    PRIVATE glad glfw
+)
+

code/data/off/simple_cupe.off

@@ -0,0 +1,16 @@
+OFF
+8 6 0
+-0.500000 -0.500000 0.500000
+0.500000 -0.500000 0.500000
+-0.500000 0.500000 0.500000
+0.500000 0.500000 0.500000
+-0.500000 0.500000 -0.500000
+0.500000 0.500000 -0.500000
+-0.500000 -0.500000 -0.500000
+0.500000 -0.500000 -0.500000
+4 0 1 3 2
+4 2 3 5 4
+4 4 5 7 6
+4 6 7 1 0
+4 1 7 5 3
+4 6 0 2 4

code/deps/Cmakelists.txt

@@ -7,12 +7,20 @@ function(setup_dependency NAME  SUBDIR)
         if(NOT TARBALL)
             message(FATAL_ERROR "❌ No '${NAME}*.tar.*' in deps/tarballs/")
         else()
+            message(STATUS "${CMAKE_COMMAND}  ${TARBALL}" )
    
-        message(STATUS "${CMAKE_COMMAND}  ${TARBALL}" )
-            execute_process(COMMAND "${CMAKE_COMMAND}" -E tar xf "${TARBALL}" "${NAME}/${SUBDIR}"  RESULT_VARIABLE TAR_STATUS  WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" )
-            message(STATUS "Extracting ${NAME}... Output: ${TAR_OUTPUT} Status: ${TAR_STATUS}")
-            if(NOT TAR_STATUS EQUAL 0)
-                message(FATAL_ERROR "❌ Extract failed: ${NAME}")
+            if(SUBDIR STREQUAL "")
+                execute_process(COMMAND "${CMAKE_COMMAND}" -E tar xf "${TARBALL}"  RESULT_VARIABLE TAR_STATUS  WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" )
+                message(STATUS "Extracting ${NAME}... Output: ${TAR_OUTPUT} Status: ${TAR_STATUS}")
+                if(NOT TAR_STATUS EQUAL 0)
+                    message(FATAL_ERROR "❌ Extract failed: ${NAME}")
+                endif()
+            else()
+                execute_process(COMMAND "${CMAKE_COMMAND}" -E tar xf "${TARBALL}" "${NAME}/${SUBDIR}"  RESULT_VARIABLE TAR_STATUS  WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" )
+                message(STATUS "Extracting ${NAME}... Output: ${TAR_OUTPUT} Status: ${TAR_STATUS}")
+                if(NOT TAR_STATUS EQUAL 0)
+                    message(FATAL_ERROR "❌ Extract failed: ${NAME}")
+                endif()        
             endif()
         endif()
     else()
@@ -24,5 +32,6 @@ setup_dependency("CGAL-6.1.1" "include" )
 setup_dependency("eigen-3.4.0" "Eigen"  )
 setup_dependency("boost_1_90_0" "boost"  )
 setup_dependency("libigl-2.6.0" "include"  )
-
+setup_dependency("libigl-glad" "" )
+setup_dependency("glfw-3.4" ""  )
 

code/src/apps/v0/conformallab_cli.cpp

@@ -0,0 +1,93 @@
+#include <CGAL/Simple_cartesian.h>
+#include <CGAL/Surface_mesh.h>
+#include <CGAL/IO/polygon_mesh_io.h>
+
+#include <CGAL/Polygon_mesh_processing/triangulate_faces.h>
+
+#include <CLI11.hpp>
+#include <iostream>
+#include <string>
+
+#include <igl/opengl/glfw/Viewer.h>
+#include <Eigen/Core>
+
+
+using Kernel = CGAL::Simple_cartesian<double>;
+using Point  = Kernel::Point_3;
+using Mesh   = CGAL::Surface_mesh<Point>;
+namespace PMP = CGAL::Polygon_mesh_processing;
+
+int main(int argc, char* argv[])
+{
+    CLI::App app{"demo of conformallab"};
+    std::string input_file;
+    std::string output_file; // default output file name
+
+    app.add_option("-i,--input",  input_file,  "Input OFF file")->required();
+    app.add_option("-o,--output", output_file, "Output OFF file (optional)");
+    CLI11_PARSE(app, argc, argv);
+
+    if (input_file.empty()) {
+        std::cerr << "Input file is required.\n";
+        return EXIT_FAILURE;
+    }
+
+    if (input_file.substr(input_file.find_last_of('.') + 1) != "off") {
+        std::cerr << "Unsupported file format. Please provide an OFF file.\n";
+        return EXIT_FAILURE;
+    }
+
+    Mesh surface_mesh;
+    if (!CGAL::IO::read_polygon_mesh(input_file, surface_mesh) || surface_mesh.is_empty()) {
+        std::cerr << "Invalid input file: " << input_file << "\n";
+        return EXIT_FAILURE;
+    }
+  
+    // #TODO: later: here we would call the unwrapping code, e.g.:
+    // UnwrapSettings settings;
+    // settings.target_geometry = TargetGeometry::Euclidean;
+    // UnwrapJob job(surface_mesh, settings);
+    // auto result = job.run();
+    // Mesh unwrapped = result.surface_unwrapped;
+
+
+    // CGAL -> libigl
+    PMP::triangulate_faces(surface_mesh);
+    //todo : we should check if the mesh is already triangulated, and only call this if it isn't, to avoid unnecessary processing. CGAL::Polygon_mesh_processing::is_triangulated() can be used for this check.
+    Eigen::MatrixXd Vertices;
+    Eigen::MatrixXi Faces;
+    Vertices.resize(surface_mesh.number_of_vertices(), 3);
+    Faces.resize(surface_mesh.number_of_faces(),    3);
+    
+        for (auto v : surface_mesh.vertices()) {
+            const auto& p = surface_mesh.point(v);
+            Vertices(v.idx(), 0) = p.x();
+            Vertices(v.idx(), 1) = p.y();
+            Vertices(v.idx(), 2) = p.z();
+        }
+    
+        int f_i = 0;
+        for (auto f : surface_mesh.faces()) {
+            int k = 0;
+            for (auto hv : CGAL::halfedges_around_face(surface_mesh.halfedge(f), surface_mesh)) {
+                auto v = surface_mesh.target(hv);
+                Faces(f_i, k) = v.idx();
+                ++k;
+            }
+            ++f_i;
+        }
+    
+        igl::opengl::glfw::Viewer viewer;
+        viewer.data().set_mesh(Vertices, Faces);
+        viewer.launch();
+
+
+    
+    // for now, we just write the input mesh to the output file as a placeholder
+    if (!output_file.empty() && !CGAL::IO::write_polygon_mesh(output_file, surface_mesh)) {
+        std::cerr << "Failed to write output file: " << output_file << "\n";
+        return EXIT_FAILURE;
+    }
+
+    return EXIT_SUCCESS;
+}