FGFS-4.1/OpenSceneGraph
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The attached code (from the 3.6 branch) adds a keepSeparatePoints option to the SHP plugin which makes it possible to avoid merging point features into multi-points, in case you e.g. need to keep separate point attributes.

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It also contains a fix in the Xbase DBF parser, converting a numeric shape attribute to double instead of integer. As stated in e.g. https://en.wikipedia.org/wiki/.dbf the numeric field can contain decimals.
This commit is contained in:
Andreas Ekstrand 2018-04-03 12:42:37 +01:00 committed by Robert Osfield
parent 3450b9fee8
commit e888e9621c
4 changed files with 15 additions and 6 deletions
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7
src/osgPlugins/shp/ESRIShapeParser.cpp
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@ -12,9 +12,10 @@
using namespace ESRIShape;
ESRIShapeParser::ESRIShapeParser( const std::string fileName, bool useDouble ):
ESRIShapeParser::ESRIShapeParser(const std::string fileName, bool useDouble, bool keepSeparatePoints) :
_valid(false),
_useDouble(useDouble)
_useDouble(useDouble),
_keepSeparatePoints(keepSeparatePoints)
{
int fd = 0;
if( !fileName.empty() )
@ -215,7 +216,7 @@ osg::Geode *ESRIShapeParser::getGeode()
void ESRIShapeParser::_combinePointToMultipoint()
{
if( !_valid ) return;
if (!_valid || _keepSeparatePoints) return;
OSG_NOTICE<<"_combinePointToMultipoint()"<<std::endl;

3
src/osgPlugins/shp/ESRIShapeParser.h
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@ -61,7 +61,7 @@ class ESRIShapeParser
{
public:
ESRIShapeParser( const std::string fileName, bool useDouble);
ESRIShapeParser( const std::string fileName, bool useDouble, bool keepSeparatePoints);
osg::Geode *getGeode();
@ -81,6 +81,7 @@ class ESRIShapeParser
bool _valid;
bool _useDouble;
bool _keepSeparatePoints;
osg::ref_ptr<osg::Geode> _geode;

9
src/osgPlugins/shp/ESRIShapeReaderWriter.cpp
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@ -20,6 +20,7 @@ class ESRIShapeReaderWriter : public osgDB::ReaderWriter
{
supportsExtension("shp","Geospatial Shape file format");
supportsOption("double","Read x,y,z data as double an stored as geometry in osg::Vec3dArray's.");
supportsOption("keepSeparatePoints", "Avoid combining point features into multi-point.");
}
virtual const char* className() const { return "ESRI Shape ReaderWriter"; }
@ -47,8 +48,14 @@ class ESRIShapeReaderWriter : public osgDB::ReaderWriter
useDouble = true;
}
bool keepSeparatePoints = false;
if (options && options->getOptionString().find("keepSeparatePoints") != std::string::npos)
{
keepSeparatePoints = true;
}
ESRIShape::ESRIShapeParser sp(fileName, useDouble);
ESRIShape::ESRIShapeParser sp(fileName, useDouble, keepSeparatePoints);
std::string xbaseFileName(osgDB::getNameLessExtension(fileName) + ".dbf");

2
src/osgPlugins/shp/XBaseParser.cpp
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@ -184,7 +184,7 @@ bool XBaseParser::parse(int fd)
char* number = new char[it->_fieldLength + 1];
memcpy(number, recordPtr, it->_fieldLength);
number[it->_fieldLength] = 0;
shapeAttributeList->push_back(osgSim::ShapeAttribute((const char *) it->_name, (int) atoi(number)));
shapeAttributeList->push_back(osgSim::ShapeAttribute((const char *) it->_name, atof(number)));
delete [] number;
break;
}