说明GeoTiff文件中有哪些头文件，怎么样复制。在创建新的GeoTiff文件和写GeoTiff文件时非常重要。-Descr iption of the GeoTiff file header files, how to copy. Very important to create a new the the GeoTiff file and write GeoTiff file.

读写使用java 通过调用gadl 来解析geoTiff格式的文件。-using java to parse the file which format is geoTiff throgh gadl lab.