示例#1
0
文件: BufferOp.cpp 项目: jahn/basemap
void
BufferOp::bufferReducedPrecision(int precisionDigits)
{
	double sizeBasedScaleFactor=precisionScaleFactor(argGeom, distance, precisionDigits);

#if GEOS_DEBUG
	std::cerr << "recomputing with precision scale factor = "
		<< sizeBasedScaleFactor
		<< std::endl;
#endif

	assert(sizeBasedScaleFactor>0);
	PrecisionModel fixedPM(sizeBasedScaleFactor);
	bufferFixedPrecision(fixedPM);
}
示例#2
0
/*private*/
void
BufferOp::computeGeometry()
{
#if GEOS_DEBUG
	std::cerr<<"BufferOp::computeGeometry: trying with original precision"<<std::endl;
#endif

	bufferOriginalPrecision();

	if (resultGeometry!=NULL) return;

#if GEOS_DEBUG
	std::cerr << "bufferOriginalPrecision failed (" << saveException.what() << "), trying with reduced precision"
	          << std::endl;
#endif

	const PrecisionModel& argPM = *(argGeom->getFactory()->getPrecisionModel());
	if ( argPM.getType() == PrecisionModel::FIXED )
		bufferFixedPrecision(argPM);
	else
		bufferReducedPrecision();
}