I just downloaded a trial version of ArcPad 10 that will be used with a Trimble GeoXH 2008 GPS unit. I'm experimenting with data compatibility in ArcPad on my desktop. Shapefiles show up just fine, but I can't get a raster to load. I can add the data, and it is shown in the table of contents, but I can't display the data or zoom to the layer. I've tried GeoTIFF, .tif, .img, and arc grids, all with spatial reference information, and none of them display.
For a raster to be used in ArcPad they must comply to the following conditions for geo-referencing and projection information:
Raster files must have associated georeferencing information. This georeferencing information includes the size of the pixels, as well as the coordinate position of the reference pixel.
The georeferencing information can be stored in three locations:
Within the header section of the image, such as with GeoTIFF or MrSID images. Within an associated Auxilliary (.aux) file, such as created by ArcGIS. Within an associated world file.
All raster files must have either a world file or an AUX file, with the exception of GeoTIFF and MrSID images.
When adding a raster layer to an ArcPad map, ArcPad first looks in the image header for the georeferencing information, then in the associated .aux file (if present), then within an associated world file (if present).
Raster files must also have associated projection information. This projection information enables ArcPad to correctly position the image on a map with a defined projection, or coordinate system.
The projection information can be stored in three locations:
Within the header section of the image, such as with GeoTIFF images. Within an associated Auxilliary (.aux) file, such as created by ArcGIS. Within an associated map projection file (*.prj).
When adding a raster layer to an ArcPad map, ArcPad first looks in the image header for the projection information, then in the associated .aux file (if present), then within an associated projection file (if present).
This may be the reason for your problems. Also remember that it is only ArcGIS Online layers that are able to be reprojected on the fly in ArcPad - all other data MUST be in the same projection.
For a raster to be used in ArcPad they must comply to the following conditions for geo-referencing and projection information:
Raster files must have associated georeferencing information. This georeferencing information includes the size of the pixels, as well as the coordinate position of the reference pixel.
The georeferencing information can be stored in three locations:
Within the header section of the image, such as with GeoTIFF or MrSID images. Within an associated Auxilliary (.aux) file, such as created by ArcGIS. Within an associated world file.
All raster files must have either a world file or an AUX file, with the exception of GeoTIFF and MrSID images.
When adding a raster layer to an ArcPad map, ArcPad first looks in the image header for the georeferencing information, then in the associated .aux file (if present), then within an associated world file (if present).
Raster files must also have associated projection information. This projection information enables ArcPad to correctly position the image on a map with a defined projection, or coordinate system.
The projection information can be stored in three locations:
Within the header section of the image, such as with GeoTIFF images. Within an associated Auxilliary (.aux) file, such as created by ArcGIS. Within an associated map projection file (*.prj).
When adding a raster layer to an ArcPad map, ArcPad first looks in the image header for the projection information, then in the associated .aux file (if present), then within an associated projection file (if present).
This may be the reason for your problems. Also remember that it is only ArcGIS Online layers that are able to be reprojected on the fly in ArcPad - all other data MUST be in the same projection.
