FGFS-4.1/OpenSceneGraph
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From Sukender, "I just fount that writing double precision values (eg. Vec3dArray for vertices) works with .osg but not .osgt/.osgx. So here is the fix (SVN trunk r12712). I suppose .osgb works as expected on this point and did not change anything.

Browse Source 
So, as for .osg, if you add "precision 16" (for instance) to the optionString, then you'll get double precision vertices written correctly.
"
This commit is contained in:
Robert Osfield
2011-09-13 11:48:06 +00:00
parent 64fa6aec43
commit 41924dfc14
3 changed files with 24 additions and 5 deletions
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8
src/osgPlugins/osg/AsciiStreamOperator.h
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@@ -7,8 +7,12 @@
class AsciiOutputIterator : public osgDB::OutputIterator
{
public:
AsciiOutputIterator( std::ostream* ostream )
: _readyForIndent(false), _indent(0) { _out = ostream; }
AsciiOutputIterator( std::ostream* ostream, int precision )
: _readyForIndent(false), _indent(0)
{
_out = ostream;
if (precision>0) _out->precision(precision);
}
virtual ~AsciiOutputIterator() {}

18
src/osgPlugins/osg/ReaderWriterOSG2.cpp
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@@ -71,15 +71,29 @@ InputIterator* readInputIterator( std::istream& fin, const Options* options )
OutputIterator* writeOutputIterator( std::ostream& fout, const Options* options )
{
// Read precision parameter, for text & XML formats
int precision(-1);
if ( options ) {
std::istringstream iss(options->getOptionString());
std::string opt;
while (iss >> opt)
{
if(opt=="PRECISION" || opt=="precision")
{
iss >> precision;
}
}
}
if ( options && options->getOptionString().find("Ascii")!=std::string::npos )
{
fout << std::string("#Ascii") << ' ';
return new AsciiOutputIterator(&fout);
return new AsciiOutputIterator(&fout, precision);
}
else if ( options && options->getOptionString().find("XML")!=std::string::npos )
{
fout << std::string("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>") << std::endl;
return new XmlOutputIterator(&fout);
return new XmlOutputIterator(&fout, precision);
}
else
{

3
src/osgPlugins/osg/XmlStreamOperator.h
View File

@@ -19,10 +19,11 @@ public:
TEXT_LINE // A text line, e.g. recording array elements
};
XmlOutputIterator( std::ostream* ostream )
XmlOutputIterator( std::ostream* ostream, int precision )
: _readLineType(FIRST_LINE), _prevReadLineType(FIRST_LINE), _hasSubProperty(false)
{
_out = ostream;
if (precision>0) _sstream.precision(precision);
_root = new osgDB::XmlNode;
_root->type = osgDB::XmlNode::GROUP;
}