By Chun Chen, Senior Software Engineer, St. Johns River Water Management District, Palatka, Florida, USA

Download the script.

Code Summary

This Web application (http://webapub.sjrwmd.com/agws/imageviewer/ ) enables user to select different types of images within SJRWMD (St.Johns River Water Management District) for viewing, downloading DOQ accroding to user-specified area.

Key functionalities include:

  • Allow user to select the type of images to view;
  • Proved single image view option for image downloading and navigating purpose;
  • Provide side-by-side view option for image comparison purpose. Navigating in one image will automatically change the map extent in another image (map synchronization);
  • Spatial search (search by box or point) function to find the availability of DOQ;
  • Select areas of interest using features in other map layers;
  • Address search using geocoding service to find DOQ for downloading;
  • Download selected DOQ(s) to user's pc;
  • Print single image or side-by-side images


For more detailed information, please click the "help" link on the image viewer website (http://webapub.sjrwmd.com/agws/imageviewer/).