Merge branch '24-cannot-compile-eigen-files-not-found' into 'master'

Resolve "Cannot compile: Eigen files not found"

Closes #24

See merge request mobile_robotics/laser_scan_utils!2

CMakeLists.txt

 
 # Pre-requisites about cmake itself
-CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
+CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
 
 if(COMMAND cmake_policy)
   cmake_policy(SET CMP0005 NEW) 

src/CMakeLists.txt

@@ -10,9 +10,14 @@ IF(faramotics_FOUND)
     MESSAGE("Faramotics Library FOUND: Tests requiring it will be built.")
 ENDIF(faramotics_FOUND)
 
+FIND_PACKAGE(Eigen3 3.3 REQUIRED)
 FIND_PACKAGE(csm QUIET)
+
 #include directories
-INCLUDE_DIRECTORIES(.)
+INCLUDE_DIRECTORIES(. /usr/local/include)
+IF(Eigen3_FOUND)
+    INCLUDE_DIRECTORIES(${EIGEN3_INCLUDE_DIRS})
+ENDIF(Eigen3_FOUND)
 IF(csm_FOUND)
     INCLUDE_DIRECTORIES(${csm_INCLUDE_DIR})
 ENDIF(csm_FOUND)

src/grid_2d.h

@@ -8,8 +8,8 @@
 #include "grid_cluster.h"
 
 //Eigen includes
-#include <eigen3/Eigen/Dense>
-#include <eigen3/Eigen/Geometry>
+#include <Eigen/Dense>
+#include <Eigen/Geometry>
 
 //std
 #include <vector>

src/laser_scan_utils.h

@@ -3,9 +3,9 @@
 #define TYPES_LASER_SCAN_UTILS_H_
 
 //includes from Eigen lib
-#include <eigen3/Eigen/Dense>
-#include <eigen3/Eigen/Geometry>
-#include <eigen3/Eigen/Sparse>
+#include <Eigen/Dense>
+#include <Eigen/Geometry>
+#include <Eigen/Sparse>
 
 //namespace laserscanutils;