Convert BPW to ADF

Understanding BPW and ADF file formats

BPW files are World Files used in GIS (Geographic Information Systems) to provide georeferencing information for raster images, such as BMP files. They contain coordinate data that allows mapping software to accurately position the associated image on a map. ADF files, on the other hand, are Arc/Info Binary Grid files used by ESRI's ArcGIS software to store raster data, such as elevation or land cover information, in a proprietary binary format.

Why convert BPW to ADF?

Converting BPW (world file) data to ADF (Arc/Info Binary Grid) format is typically required when you need to integrate georeferenced raster images into ESRI's ArcGIS environment for advanced spatial analysis or data management. The ADF format is optimized for use within ArcGIS and supports complex raster operations.

How to convert BPW to ADF

Since a BPW file only contains georeferencing information and not the actual image data, you must have the associated raster image (such as a BMP file) alongside the BPW file. The conversion process involves importing the raster image with its world file into GIS software and exporting it as an ADF grid.

Recommended software for BPW to ADF conversion

ArcGIS by ESRI is the best software for this conversion. Here’s how you can perform the conversion:

• Open ArcGIS and add your raster image (e.g., BMP) and its BPW file to the map.
• Ensure the image is correctly georeferenced using the BPW file.
• Go to ArcToolbox → Conversion Tools → To Raster → Raster to Other Format.
• Select your input raster and set the output format to GRID (which creates ADF files).
• Click OK to start the conversion.

Alternatively, GDAL (Geospatial Data Abstraction Library) can be used via command line:

gdal_translate -of AIG input.bmp output_folder

Make sure the BPW file is in the same directory as the BMP file for GDAL to recognize the georeferencing.

Summary

To convert BPW to ADF, you need both the raster image and its BPW file. Use ArcGIS or GDAL to import the georeferenced raster and export it as an ADF (Arc/Info Binary Grid) for use in ESRI software.