.hgtags

I'm trying to read the elevation data stored in HGT files. As far as I know they can be read as binary files. I found this thread: How do I access .HGT SRTM files in C++? Based on that post, my sample code is: #include <iostream> #include <fstream> int main(int argc, const char * argv[]) { std::ifstream::pos_type size; char * memblock; std::ifstream file ("N45W066.hgt", std::ios::in|std::ios::binary|std::ios::ate); if (file.is_open()) { size = 2; memblock = new char [size]; file.seekg(0, std::ios::beg); file.read(memblock, size); int srtm_ver = 1201; int height[1201][1021]; for (int i = 0; i

Here is a similar question on the topic with a good description of the file: how to read NASA .hgt binary files I am fairly new to programming in general and my efforts thus far have been very limited. My ultimate goal is to access the elevation data and store it in a 2D array for easy access. I have been trying to read the file 2 bytes at a time, as has been suggested, but I don't know what to do next. Here is what I've got so far: #include <iostream> #include <fstream> using namespace std; int main () { ifstream::pos_type size; char * memblock; ifstream file ("N34W119.hgt", ios::in|ios:

I have a script running some Mercurial commands in non-interactive mode on a build server. One of the commands merges two branches and there is always a conflict in the .hgtags file during the merge because of the way the build scripts are set up. How can I force Mercurial to always merge the .hgtags file using changes from both files, first from one, then from the other? For example, if I the files to merge were A B C and A B D I would like the result to be A B C D I am guessing I will need a custom merge tool. What tool provides this functionality? Martin Geisler Please see the answer below