有人知道如何在C#中读取NASA .hgt文件吗？

显然这个问题在Python中被问到：
how to read NASA .hgt binary files

最佳答案 使用GDAL库(地理数据抽象层)：它支持HGT文件,并且它使用SWIG进行C#绑定.

编辑：您需要的所有信息是here.

从FAQ开始：

The SRTM data files have names like “N34W119.hgt”. What do the letters
and numbers refer to, and what is “.hgt” format?

Each data file covers a one-degree-of-latitude by
one-degree-of-longitude block of Earth’s surface. The first seven
characters indicate the southwest corner of the block, with N, S, E,
and W referring to north, south, east, and west. Thus, the
“N34W119.hgt” file covers latitudes 34 to 35 North and longitudes
118-119 West (this file includes downtown Los Angeles, California).
The filename extension “.hgt” simply stands for the word “height”,
meaning elevation. It is NOT a format type. These files are in “raw”
format (no headers and not compressed), 16-bit signed integers,
elevation measured in meters above sea level, in a “geographic”
(latitude and longitude array) projection, with data voids indicated
by -32768. International 3-arc-second files have 1201 columns and 1201
rows of data, with a total filesize of 2,884,802 bytes ( = 1201 x 1201
x 2). United States 1-arc-second files have 3601 columns and 3601 rows
of data, with a total filesize of 25,934,402 bytes ( = 3601 x 3601 x
2). For more information read the text file “SRTM_Topo.txt” at
07002