Function LNLIB_POLY_all_basis_functions

dotnet/CAPI/src/Polynomials_CAPI.cpp:186–231

}

void LNLIB_POLY_all_basis_functions(
	int span_index,
	int degree,
	const double* knot_vector,
	int knot_vector_count,
	double knot,
	double** out_basis_functions,
	int* out_rows,
	int* out_cols
)
{
	std::vector<double> kv(knot_vector, knot_vector + knot_vector_count);

	auto result = LNLib::Polynomials::AllBasisFunctions(span_index, degree, kv, knot);

	if (result.empty()) {
		*out_basis_functions = nullptr;
		*out_rows = 0;
		*out_cols = 0;
		return;
	}

	int rows = static_cast<int>(result.size());
	int cols = rows > 0 ? static_cast<int>(result[0].size()) : 0;

	for (int i = 0; i < rows; ++i) {
		if (static_cast<int>(result[i].size()) != cols) {
			return;
		}
	}

	double* flat = new(std::nothrow) double[rows * cols];
	if (!flat) {
		return;
	}

	for (int i = 0; i < rows; ++i) {
		for (int j = 0; j < cols; ++j) {
			flat[i * cols + j] = result[i][j];
		}
	}

	*out_basis_functions = flat;
	*out_rows = rows;
	*out_cols = cols;
}

void LNLIB_POLY_bezier_to_power_matrix(
	int degree,