wiki:UserGuidelines/GIS

Version 18 (modified by runneals, 12 years ago) ( diff )

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The Situation Mapping User Guide

Visit the GIS Mapping homepage at http://haiti.sahanafoundation.org/prod/gis/index

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.)

  • Remember!!! Latitude is North, South! Longitude is East, West!

7) Select "Save"


Conversion Tool Help

1) Select the conversion tool

2) Select either the "in GPS Format" tab or the "in Deg Min Sec Format" tab and enter in information.

  • 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")

3) Select "Calculate"

4) Last, Select "Fill in xxx" (Choose either Lat. or Long.)

  • Remember!!! Latitude is North, South! Longitude is East, West!

5) Repeat steps 1-4 again


Well-Known Text

See http://en.wikipedia.org/wiki/Well-known_text for more information

Need to explain better!!**

To edit a Location:

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

1) Find the Location your wanting to edit (Either by searching or sorting by the attribute.)

2) Click on the feature number.

3) Edit in the box above.

4) Select "Save"

Features, Feature Classes & Feature Groups

Features

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

  • 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

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

  • 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

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

  • 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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