AN2285-Data Movement between Big and Little Endian Devices

看明白这篇文章后，你就会明白计算机的大端与小端问题了-Understand this article, you

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DEM SRTM3的.hgt文件是1201*1201， signed 16 bits interger的 binary raster文件， Byte Order是Big Endian (Motorala / Network (IEEE))， 由于Signed 16 bits interger取值范围是-32767 to 32767， 其中数据空洞就赋值为-32768. -DEM the .hgt file is produced by America NASA