• SurfMM: Import-export files in Surfer format

This program permits the following transformations between Surfer formats and the formats of MiraMon:

• Import grids: Given a Surfer grid file (GRD), we can generate the corresponding MiraMon raster file (IMG) with its document file (DOC), based on the information in the GRD header. The Surfer grid should be in ASCII format (care should be taken when exporting from Surfer) and the resulting IMG is always real format. Although the MiraMon raster format requires the same resolution in both dimensions and, therefore, a square pixel size, nevertheless the program allows import Surfer grids with non-square pixel sides. In this case a bilinear geometric correction is performed to resample the original data to a net of equally spaced square pixels with the side equal to the smaller of the two dimensions of the original.
• Export rasters: We can export any uncompressed MiraMon raster format to the Surfer grid format. When the input raster file is a compressed (RLE) file, it is necessary to use the program IMGIMG to decompress it. There is the option to apply a multiplication factor to the raster values when writting the corresponding 'z' coordinates to the GRD format file.
• Export point files:Unstructured point 2D or 3D vector files (VEC) can be exported to Surfer data (DAT) format. The attribute of the VEC file must be numerical. Files in the corresponding Surfer format (DAT) can be imported using the program BDPNT which will produce a structured point file (PNT).