wiki:UserGuidelines/GIS

Version 13 (modified by Fran Boon, 12 years ago) ( diff )

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The Situation Mapping User Guide

This module is under contruction:

To Create a Location:

http://haiti.sahanafoundation.org/prod/gis/location/create

1) Type in the Specific Name of the Location in the "Name" Field.

2) Select the Type of Feature that your Location is from the "Feature Class" drop-down menu (the feature class determines the Marker).

3) Select a Parent Location based on your Specific Location.

4) Select a Marker for the Map based on your Location. - NOTE: SELECTION OF A MARKER WILL OVER-RIDE THE FEATURE CLASS MARKER ON THE MAP

5) Select a Feature Type (Point, Line, or Polygon.)

6) Enter in either the Well-Known Text for Line and Polygon or Latitude and Longitude for Point (Lat. and Long. will be in decimal degrees.)

7) Select "Save"


Conversion Tool Help

1) Select the conversion tool (If needed)

2) Select either the "in GPS Format" tab or the "in Deg Min Sec Format" tab

  • GPS Format is 18° 32' (That would be entered "18" deg "32" min)
  • Deg Min Sec Format is 18° 32' 10" (That would be entered DD "18" MM "32" SS "10")

To edit a Location:

http://haiti.sahanafoundation.org/prod/gis/location/

Features, Feature Classes & Feature Groups

Features

  • A Feature is a record in the gis_location table.
  • This can be a point (Lat/Lon), Line or Polygon (WKT)
  • This can be referenced from other tables such as:
    • /pr/person/presence
  • If there is a marker assigned directly to a Feature then that is how the Feature will show up on the map.

Feature Classes

  • A Feature Class is a record in this gis_feature_class table
  • It is a collection of Features of the same type
    • Share a comon Marker (unless over-ridden at the Feature level)
      • If no marker defined then the system default marker is used
    • Can be grouped together into Feature Groups
    • Link to a common resource for URLs & extra fields to pull into Map popups

Feature Groups

  • A Feature Class is a record in this gis_feature_class table
  • This is used to provide Layers on the Map & Feeds for export/view by other systems
  • It is a collection of Features & Feature Groups
  • The default settings start with a Feature Group being created for each Feature Class

Symbology sets

  • Symbology sets can be used to provide a set of Icons for Feature Classes based on deployment requirements, e.g. US FEMA
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