ossimSpotDimapSupportData::getPixelLookAngleX(const ossim_float64& sample, ossim_float64& pa) const { ossim_uint32 s = static_cast<ossim_uint32>(sample); getInterpolatedLookAngle(s, thePixelLookAngleX, pa); }
ossim_uint32 s = static_cast<ossim_uint32>(sample);
这一句是对像素值取整，而后面紧接着按取整后的像素值进行插值，这是什么逻辑。。。
以下是修复后的代码
ossimSpotDimapSupportData::getPixelLookAngleX(const ossim_float64& sample, ossim_float64& pa) const { getInterpolatedLookAngle(sample, thePixelLookAngleX, pa); }
同样的，也需要对getPixelLookAngleY函数进行相应的修改。
原文：http://www.cnblogs.com/loongfee/p/3558760.html