Session 3
June 25, 9a.m. to noon.

Instructional Session on Creating Web Sites

  • The World Outside a GIS. 
    • To get copies of GIS maps for use elsewhere:
      • Use the Windows-universal command, Alt+PrntScrn, to take what is on the screen, put it on the Windows clipboard, and paste it into other applications. 
      • Use the "save as" or "export" or "copying" capability of the GIS itself to make static maps that can be opened as images in other applications (sometimes, though, these capabilities that are internal to the GIS itself are not all that one might wish for; one example is in exporting images from ArcView that have patterns with transparent backgrounds--in this case it is better to use the command above).  In addition, some solid colors may exhibit a Moire pattern when exported directly from ArcView, but not when copied using Alt+PrntScrn.
    • Manipulating GIS images elsewhere.
      • Adobe PhotoShop or other editor to create .gif or .jpg image from GIS maps.  Go to File|New to open a blank canvas.  Then use Ctrl+v to paste in the content of the Windows clipboard.
      • Most people have some knowledge of Excel; far fewer, though, seem to have much experience with PhotoShop.  To date, you

      • may just have used PhotoShop to change formats of a file so that it could be mounted on the web.  Listed below are a few
        PhotoShop techniques that might prove useful in the mapping environment--PhotoShop images are raster images (composed of two-dimensional pixels) images; ArcView images are vector images (zero-dimensional mathematical point locations). 

        A few Adobe PhotoShop skills--this package is extremely rich in capability and well worth time spent learning the wide variety of possible tools available for image manipulation.

        RGB color:  Image|Mode|RGB Color 
        Format:  .psd, .gif, .jpg, and others.  Alt+Prntscreen, File|New, and pastefor best .jpg from ArcView. 
        Put text on the image
        Crop the image
        Layers in PhotoShop 
        Arrangement of spatial forms--maps and aerials, or whatever! 

      • Creating your own images to go with explanations, in Word for example, of how to use software.
    • Clickable maps.  Take a map at a broad scale and link to it close-ups of regional maps, photos, or images of spreadsheets.  Link more to each of these.  A clickable map is a sort of spatial table of content to a broad range of graphic displays.  Here is a sample made by Jennifer Rennicks in NRE530, Fall, 1999 (click on the Cockscomb Basin Wildlife Sanctuary in the map).
    • Animated maps
      • Link to an article about animated maps, from the site:  Animated maps can be quite useful in tracking diffusion or spatial change over time.
      • In ArcView, project the map of the world to the orthographic (world from space) view.  This map can be customized to be centered on various longitude values.  Save these views as .gif images in PhotoShop.  Assemble them in a .gif animator such as Gamani Movie Gear.
      • South Asia animation of TIN files.

Sandra L. Arlinghaus