Merge pull request #14 from GenerateNU/features/tangent-vectors-geom_…

…bspline

Features/tangent vectors geom bspline

.vscode/settings.json

@@ -0,0 +1,59 @@
+{
+    "files.associations": {
+        "__bit_reference": "cpp",
+        "__config": "cpp",
+        "__debug": "cpp",
+        "__errc": "cpp",
+        "__hash_table": "cpp",
+        "__locale": "cpp",
+        "__mutex_base": "cpp",
+        "__node_handle": "cpp",
+        "__split_buffer": "cpp",
+        "__threading_support": "cpp",
+        "__verbose_abort": "cpp",
+        "array": "cpp",
+        "atomic": "cpp",
+        "bitset": "cpp",
+        "cctype": "cpp",
+        "charconv": "cpp",
+        "clocale": "cpp",
+        "cmath": "cpp",
+        "complex": "cpp",
+        "cstdarg": "cpp",
+        "cstddef": "cpp",
+        "cstdint": "cpp",
+        "cstdio": "cpp",
+        "cstdlib": "cpp",
+        "cstring": "cpp",
+        "ctime": "cpp",
+        "cwchar": "cpp",
+        "cwctype": "cpp",
+        "exception": "cpp",
+        "fstream": "cpp",
+        "initializer_list": "cpp",
+        "iomanip": "cpp",
+        "ios": "cpp",
+        "iosfwd": "cpp",
+        "iostream": "cpp",
+        "istream": "cpp",
+        "limits": "cpp",
+        "locale": "cpp",
+        "mutex": "cpp",
+        "new": "cpp",
+        "optional": "cpp",
+        "ostream": "cpp",
+        "ratio": "cpp",
+        "sstream": "cpp",
+        "stdexcept": "cpp",
+        "streambuf": "cpp",
+        "string": "cpp",
+        "string_view": "cpp",
+        "system_error": "cpp",
+        "tuple": "cpp",
+        "typeinfo": "cpp",
+        "unordered_map": "cpp",
+        "variant": "cpp",
+        "vector": "cpp",
+        "algorithm": "cpp"
+    }
+}

.vscode/tasks.json

@@ -0,0 +1,29 @@
+{
+    "tasks": [
+        {
+            "type": "cppbuild",
+            "label": "C/C++: clang build active file",
+            "command": "/usr/bin/clang",
+            "args": [
+                "-fcolor-diagnostics",
+                "-fansi-escape-codes",
+                "-g",
+                "${file}",
+                "-o",
+                "${fileDirname}/${fileBasenameNoExtension}"
+            ],
+            "options": {
+                "cwd": "${fileDirname}"
+            },
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "detail": "Task generated by Debugger."
+        }
+    ],
+    "version": "2.0.0"
+}

backend/.gitignore

@@ -0,0 +1 @@
+build/*

backend/CMakeLists.txt

@@ -9,7 +9,8 @@ include_directories(${OCE_INCLUDE_DIRS})
 add_executable(cad_to_gcode src/cad_to_gcode.cpp)
 add_executable(iges_to_topo src/iges_to_topo.cpp)
 add_executable(shape_to_bspline src/shape_to_bspline.cpp)
+add_executable(tangent_vectors_geom_bspline src/tangent_vectors_geom_bspline.cpp)
 target_link_libraries(cad_to_gcode ${OpenCASCADE_LIBRARIES})
 target_link_libraries(iges_to_topo ${OpenCASCADE_LIBRARIES})
 target_link_libraries(shape_to_bspline ${OpenCASCADE_LIBRARIES})
-
+target_link_libraries(tangent_vectors_geom_bspline ${OpenCASCADE_LIBRARIES})

backend/src/tangent_vectors_geom_bspline.cpp

@@ -0,0 +1,28 @@
+
+#include <Geom_Curve.hxx>
+#include <Geom_BSplineCurve.hxx>
+#include <GeomLProp_SLProps.hxx>
+#include <gp_Pnt.hxx>
+#include <gp_Vec.hxx>
+#include <vector>
+#include <iostream>
+
+// outputs a list of vectors containing the tangents to the knots on the curve
+std::vector<gp_Vec> calculate_tangent_vectors(const Handle(Geom_BSplineCurve)& bsplineCurve) {
+    std::vector<gp_Vec> tangentVectors;
+    gp_Vec tangentVector;
+    gp_Pnt point;
+    int knots = bsplineCurve->NbKnots();
+    Standard_Real step_size = 1 / knots;
+    Standard_Real first_parameter = bsplineCurve->FirstParameter();
+    Standard_Real last_parameter = bsplineCurve->LastParameter();
+    for (int u = first_parameter; u < last_parameter; u += step_size) {
+        bsplineCurve->D1(u, point, tangentVector);
+        tangentVectors.push_back(tangentVector);
+    }
+    return tangentVectors;
+}
+
+int main(int argc, char* argv[]) {
+    return 1;
+}