dxmath performs simple arithmetic operations with Cartesian grid data. It is invoked as: dx-math <path>where <path> is the path is the path to a file with operations specified in a stack-based (RPN) manner. For example, a command file which adds grid1 and grid2, multiplies the result by 5.3, adds grid4, subtracts 99.3 from the whole thing, and writes the result on grid5 would have the form: grid1 grid2 + 5.3 * grid4 + 99.3 - grid5 =The file names, scalar values, and operations must be separated by tabs, line breaks, or white space. Comments can be included between the character # and a new line (in the usual shell script fashion). |