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Added support for automatically setting the coordinate system of a shapefile by reading associate .prj file

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This commit is contained in:
Robert Osfield
2007-12-16 16:18:58 +00:00
parent 998ba32501
commit 4a79644810
2 changed files with 40 additions and 4 deletions
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5
src/osgPlugins/shp/CMakeLists.txt
View File

@@ -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)

39
src/osgPlugins/shp/ESRIShapeReaderWriter.cpp
View File

@@ -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();
}
};