For details about Image catalog and its main advantages see chapter Building an image catalog. 


Target images resolution

You can define spatial resolution (i.e., size of one pixel) of rasters of image catalog. You can choose one of predefined pixel resolutions spanning 0,05 to 5 m/pixel. With improving resolution also increases the total number of images covering the area.


TIFF 

By default Field-Map creates JPEG tiles from WMS. You can tag, whether to create apart from JPEG images also TIFF images of individual map squares. These are stored in the same folder as image catalog.


Storage

In order to save disk space on your portable device during backups, store your raster maps out of project folder. In case of storing of maps in Maps folder of your project each backup will contain raster maps as well.
  1. Zoom on the area for which you want to create image catalog from WMS map layer. WMS map must be already opened as a background map. Check a chapter Opening background maps from WMS server.
  2. Click the Background map button



  1. Select Tools - Create Image Catalogue from WMS Layer item



  1. Split WMS Layer window appears
  2. Choose Target image resolution
  3. Optionally tag +TIFF to create raster images of individual squares of catalog
  4. Click OK



  1. Set the directory
  2. Type the name of your catalog
  3. Click OK



  1. The Split WMS Layer window during process



  1. The files has been created



  1. Map windows of Field-Map Data Collector appears. Click Background map - Open Background Map - Image Layer item



  1. Open your Image catalog (a DBF file)



  1. Image catalog appears in map window of Filed-Map Data Collector