TECHNOLOGY OF THE GEOSPATIAL WEB ENVS 4522
2 Kinds of Web Maps
Static Web Maps
 
Data is pre-loaded
 
<A  HREF=&quot;rollover_target.html&quot; onMouseOver = &quot;rollover('home')&quot;  onMouseOut = &quot;rollout('home')&q...
 
 
<?xml version=&quot;1.0&quot;?> <!DOCTYPE svg PUBLIC &quot;-//W3C//DTD SVG 1.1//EN&quot;  &quot;http://www.w3.org/Graphics...
Stored in public directory
Dynamically Created Web Maps
General Software <ul><ul><li>Webserver </li></ul></ul><ul><ul><li>Geodatabase </li></ul></ul><ul><ul><li>Spatial data  </l...
 
Dynamically Created Web Maps
Geoserver
 
<gml:Polygon> <gml:outerBoundaryIs> <gml:LinearRing> <gml:coordinates>0,0 100,0 100,100 0,100 0,0</gml:coordinates> </gml:...
Mapserver
 
 
 
 
ArcIMS
 
 
Other types of web maps <ul><ul><li>Distributed web maps Maps are created from distributed data sources. The interface of ...
<ul><ul><li>Open, reusable web maps </li></ul></ul><ul><ul><ul><li>Web maps in this category are usually more complex web ...
Evolution: Transferring of Data <ul><ul><li>The difference lies in how data is streamed from the provider to the user Over...
 
Data Components of Web Maps
Vector
Raster
Vector VS Raster <ul><ul><li>Neither is better  </li></ul></ul><ul><ul><li>The data you utilize depends on the purpose of ...
Vector VS Raster <ul><ul><li>Vector data is an interpretation of the natural world </li></ul></ul><ul><ul><li>Raster data ...
Primary VS Secondary Data <ul><ul><li>Primary Data </li></ul></ul><ul><ul><ul><li>Data that the application is concerned a...
Primary VS Secondary Data <ul><ul><li>Basemap Data </li></ul></ul><ul><ul><ul><li>Supporting spatial data used to contextu...
Summary <ul><ul><li>Web maps require </li></ul></ul><ul><ul><ul><li>Spatial Data </li></ul></ul></ul><ul><ul><ul><li>Softw...
Upcoming SlideShare
Loading in …5
×

Technology Of The Geospatial Web Nov3

564 views

Published on

Published in: Technology, Art & Photos
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
564
On SlideShare
0
From Embeds
0
Number of Embeds
4
Actions
Shares
0
Downloads
21
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • Technology Of The Geospatial Web Nov3

    1. 1. TECHNOLOGY OF THE GEOSPATIAL WEB ENVS 4522
    2. 2. 2 Kinds of Web Maps
    3. 3. Static Web Maps
    4. 5. Data is pre-loaded
    5. 7. <A HREF=&quot;rollover_target.html&quot; onMouseOver = &quot;rollover('home')&quot; onMouseOut = &quot;rollout('home')&quot; ><IMG SRC=&quot;../graphics/home_out.gif&quot; NAME=&quot;home&quot; ALT=&quot;Home Page&quot; BORDER=0 HEIGHT=130 WIDTH=115 ></A> <SCRIPT TYPE=&quot;text/javascript&quot;> <!-- setrollover(&quot;../graphics/home_over.gif&quot;); //--> </SCRIPT>
    6. 10. <?xml version=&quot;1.0&quot;?> <!DOCTYPE svg PUBLIC &quot;-//W3C//DTD SVG 1.1//EN&quot; &quot;http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd&quot;> <svg xmlns=&quot;http://www.w3.org/2000/svg&quot; version=&quot;1.1&quot; width=&quot;467&quot; height=&quot;462&quot;> <!-- This is the red square: --> <rect x=&quot;80&quot; y=&quot;60&quot; width=&quot;250&quot; height=&quot;250&quot; rx=&quot;20&quot; fill=&quot;red&quot; stroke=&quot;black&quot; stroke-width=&quot;2px&quot; /> <!-- This is the blue square: --> <rect x=&quot;140&quot; y=&quot;120&quot; width=&quot;250&quot; height=&quot;250&quot; rx=&quot;40&quot; fill=&quot;blue&quot; stroke=&quot;black&quot; stroke-width=&quot;2px&quot; fill-opacity=&quot;0.7&quot; /> </svg>
    7. 11. Stored in public directory
    8. 12. Dynamically Created Web Maps
    9. 13. General Software <ul><ul><li>Webserver </li></ul></ul><ul><ul><li>Geodatabase </li></ul></ul><ul><ul><li>Spatial data </li></ul></ul><ul><ul><li>Map server </li></ul></ul>
    10. 15. Dynamically Created Web Maps
    11. 16. Geoserver
    12. 18. <gml:Polygon> <gml:outerBoundaryIs> <gml:LinearRing> <gml:coordinates>0,0 100,0 100,100 0,100 0,0</gml:coordinates> </gml:LinearRing> </gml:outerBoundaryIs> </gml:Polygon> <gml:Point> <gml:coordinates>100,200</gml:coordinates> </gml:Point> <gml:LineString> <gml:coordinates>100,200 150,300</gml:coordinates> </gml:LineString>
    13. 19. Mapserver
    14. 24. ArcIMS
    15. 27. Other types of web maps <ul><ul><li>Distributed web maps Maps are created from distributed data sources. The interface of the web mapping system provides a method to access maps on other servers. </li></ul></ul><ul><ul><ul><li>http://www.openlayers.org/ </li></ul></ul></ul><ul><ul><li>Real time web maps </li></ul></ul><ul><ul><ul><li>Real time maps show the situation of a phenomena as it is occurring. http://science.nasa.gov/Realtime/jtrack/3d/JTrack3D.html </li></ul></ul></ul>
    16. 28. <ul><ul><li>Open, reusable web maps </li></ul></ul><ul><ul><ul><li>Web maps in this category are usually more complex web mapping systems that offer APIs for reuse in other people's web pages and products. An example for such a system with an API for reuse is Google Maps. </li></ul></ul></ul><ul><ul><ul><ul><li>http://developer.yahoo.com/maps/flash/index.html </li></ul></ul></ul></ul>
    17. 29. Evolution: Transferring of Data <ul><ul><li>The difference lies in how data is streamed from the provider to the user Over the Internet </li></ul></ul>
    18. 31. Data Components of Web Maps
    19. 32. Vector
    20. 33. Raster
    21. 34. Vector VS Raster <ul><ul><li>Neither is better </li></ul></ul><ul><ul><li>The data you utilize depends on the purpose of the application </li></ul></ul>
    22. 35. Vector VS Raster <ul><ul><li>Vector data is an interpretation of the natural world </li></ul></ul><ul><ul><li>Raster data is an actual representation of the natural world at a moment in time </li></ul></ul>
    23. 36. Primary VS Secondary Data <ul><ul><li>Primary Data </li></ul></ul><ul><ul><ul><li>Data that the application is concerned about </li></ul></ul></ul><ul><ul><ul><li>Main theme of the application </li></ul></ul></ul><ul><ul><li>Photos </li></ul></ul><ul><ul><ul><li>http://www.iceburnslair.com/mapper/lv-night/GMap.php </li></ul></ul></ul>
    24. 37. Primary VS Secondary Data <ul><ul><li>Basemap Data </li></ul></ul><ul><ul><ul><li>Supporting spatial data used to contextualize the mapping application's theme. </li></ul></ul></ul><ul><ul><ul><li>Basemap </li></ul></ul></ul><ul><ul><ul><ul><li>http://www.openstreetmap.org </li></ul></ul></ul></ul>
    25. 38. Summary <ul><ul><li>Web maps require </li></ul></ul><ul><ul><ul><li>Spatial Data </li></ul></ul></ul><ul><ul><ul><li>Software package to serve up the spatial data </li></ul></ul></ul><ul><ul><ul><li>A general plan as to the purpose of the application </li></ul></ul></ul>

    ×