Function Math_curve_length

Code/Source/PythonAPI/Math_PyModule.cxx:372–412

");

static PyObject *
Math_curve_length(PyObject *self, PyObject *args, PyObject* kwargs)
{
  std::cout << "========== Math_curve_length ==========" << std::endl;
  auto api = PyUtilApiFunction("O!|O!", PyRunTimeErr, __func__);
  static char *keywords[] = {"points", "closed", NULL};
  PyObject *pointsArg;
  PyObject *closedArg = nullptr;

  if (!PyArg_ParseTupleAndKeywords(args, kwargs, api.format, keywords, &PyList_Type, &pointsArg, &PyBool_Type, &closedArg)) {
      return api.argsError();
  }

  // Set closed parameter.
  int closed = 0;
  if ((closedArg != nullptr) && PyObject_IsTrue(closedArg)) {
      closed = 1;
  }

  // Get an array of points from the pointsArgs list.
  int dim = 3;
  auto pts = GetPointsFromList(api, pointsArg, dim, "points");
  if (pts == nullptr) {
      return nullptr;
  }
  int nlistpts = PyList_Size(pointsArg);

  // Calculate the curve length.
  //
  auto mathObj = cvMath();
  double length = 0;
  if (mathObj.curveLength(pts, nlistpts, closed, &length) == SV_ERROR) {
       mathObj.deleteArray(pts,nlistpts,dim);
       api.error("Error calculating the curve length.");
       return nullptr;
  }

  mathObj.deleteArray(pts,nlistpts,dim);

  return Py_BuildValue("d",length);
}

//---------------------------------
// Math_linear_interpolate_curve