From 4a79644810c855a7fe2400b3aa93f10a79fab386 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Sun, 16 Dec 2007 16:18:58 +0000
Subject: [PATCH] Added support for automatically setting the coordinate system
 of a shapefile by reading associate .prj file

---
 src/osgPlugins/shp/CMakeLists.txt            |  5 +--
 src/osgPlugins/shp/ESRIShapeReaderWriter.cpp | 39 ++++++++++++++++++++
 2 files changed, 40 insertions(+), 4 deletions(-)

diff --git a/src/osgPlugins/shp/CMakeLists.txt b/src/osgPlugins/shp/CMakeLists.txt
index 30c382cdd..0101731c8 100644
--- a/src/osgPlugins/shp/CMakeLists.txt
+++ b/src/osgPlugins/shp/CMakeLists.txt
@@ -1,8 +1,5 @@
-#this file is automatically generated 
-
-
 SET(TARGET_SRC ESRIShape.cpp ESRIShapeParser.cpp ESRIShapeReaderWriter.cpp XBaseParser.cpp)
 SET(TARGET_H ESRIShape.h ESRIShapeParser.h XBaseParser.h)
-SET(TARGET_ADDED_LIBRARIES osgSim )
+SET(TARGET_ADDED_LIBRARIES osgSim osgTerrain)
 #### end var setup  ###
 SETUP_PLUGIN(shp)
diff --git a/src/osgPlugins/shp/ESRIShapeReaderWriter.cpp b/src/osgPlugins/shp/ESRIShapeReaderWriter.cpp
index 6dc4a38bd..aea1e4fc0 100644
--- a/src/osgPlugins/shp/ESRIShapeReaderWriter.cpp
+++ b/src/osgPlugins/shp/ESRIShapeReaderWriter.cpp
@@ -2,6 +2,8 @@
 #include <osgDB/FileUtils>
 #include <osgDB/Registry>
 
+#include <osgTerrain/Locator>
+
 #include "ESRIType.h"
 
 #include "ESRIShape.h"
@@ -68,7 +70,44 @@ class ESRIShapeReaderWriter : public osgDB::ReaderWriter
                 }
             }    
 
+            if (sp.getGeode())
+            {
             
+                std::string projFileName(osgDB::getNameLessExtension(fileName) + ".prj");
+                if (osgDB::fileExists(projFileName))
+                {
+                    std::ifstream fin(projFileName.c_str());
+                    if (fin)
+                    {
+                        std::string projstring;
+                        while(!fin.eof())
+                        {
+                            char readline[4096];
+                            *readline = 0;
+                            fin.getline(readline, sizeof(readline));
+                            if (!projstring.empty() && !fin.eof())
+                            {
+                                projstring += '\n';
+                            }
+                            projstring += readline;
+
+                        }
+                        
+                        if (!projstring.empty())
+                        {
+                            osgTerrain::Locator* locator = new osgTerrain::Locator;
+                            sp.getGeode()->setUserData(locator);
+
+                            locator->setFormat("WKT");
+                            locator->setCoordinateSystem(projstring);
+                            locator->setDefinedInFile(false);
+                        }
+                    }
+                    
+                }
+
+
+            }
             return sp.getGeode();
         }
 };