Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/linprog.h

@@ -0,0 +1,65 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2015 Alec Jacobson <alecjacobson@gmail.com>
+// 
+// This Source Code Form is subject to the terms of the Mozilla Public License 
+// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
+// obtain one at http://mozilla.org/MPL/2.0/.
+#ifndef IGL_LINPROG_H
+#define IGL_LINPROG_H
+#include "igl_inline.h"
+#include <Eigen/Core>
+namespace igl
+{
+  // Solve a linear program given in "standard form"
+  //
+  // min  f'x
+  // s.t. A(    1:k,:) x <= b(1:k)
+  //      A(k+1:end,:) x = b(k+1:end)
+  //   ** x >= 0 **
+  //
+  // In contrast to other APIs the entries in b may be negative.
+  //
+  // Inputs:
+  //   c  #x list of linear coefficients
+  //   A  #A by #x matrix of linear constraint coefficients
+  //   b  #A list of linear constraint right-hand sides
+  //   k  number of inequality constraints as first rows of A,b
+  // Outputs:
+  //   x  #x solution vector
+  //
+  IGL_INLINE bool linprog(
+    const Eigen::VectorXd & c,
+    const Eigen::MatrixXd & A,
+    const Eigen::VectorXd & b,
+    const int k,
+    Eigen::VectorXd & f);
+  
+  // Wrapper in friendlier general form (no implicit bounds on x)
+  //
+  // min  f'x
+  // s.t. A x <= b
+  //      B x = c
+  //
+  // Inputs:
+  //   f  #x list of linear coefficients
+  //   A  #A by #x matrix of linear inequality constraint coefficients
+  //   b  #A list of linear constraint right-hand sides
+  //   B  #B by #x matrix of linear equality constraint coefficients
+  //   c  #B list of linear constraint right-hand sides
+  // Outputs:
+  //   x  #x solution vector
+  //
+  IGL_INLINE bool linprog(
+    const Eigen::VectorXd & f,
+    const Eigen::MatrixXd & A,
+    const Eigen::VectorXd & b,
+    const Eigen::MatrixXd & B,
+    const Eigen::VectorXd & c,
+    Eigen::VectorXd & x);
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "linprog.cpp"
+#endif
+#endif