[OSM-talk] OSMHQ News: Ideas for OSMHQ Tools
Sunburned Surveyor
sunburned.surveyor at gmail.com
Mon Sep 8 21:33:13 BST 2008
During my recent lunch breaks I started working on some OSMHQ mapping
near my office. When I got the data downloaded and started to work
with it I realized a couple of things:
[1] I need to write some simple tools to help process the data.
[2] I really need to define a GIS data model for OSM that will help
guide my work.
The first tool I'd like to write will take waypoints collected with a
recreation grade GIS receiver and exported in GPX format from EasyGPS
or another program into a GML 2.0 file that can be imported into
OpenJUMP or other GIS programs that support GML 2.0. The GML file will
convert each waypoint into a waypoint observation feature with the
following feature attributes:
- Time of Observation
- Estimate Horizontal Accuracy
- Primary Observed Feature Type (The primary feature the waypoint "belongs" to.)
- Primary Observed Feature Type Name
- Waypoint to Feature Geometry Relationship (Describes the
relationship of the location of the waypoint observation to the actual
geometry representing the feature.)
- Mapper Call Sign/Name
- Mapper Organization Name
This tool will support a step in the OSMHQ mapping process that
preserves the raw measurement data that OSM feature geometry is
created from.
As part of my work on the GIS Data Model for OSMHQ I've come up with
a standard set of tags for all OSMHQ features. My second tool will add
these tags with default values to each feature contained in a OSM XML
file. The user of the tool will be able to set the default values for
each of the standard tags prior to the conversion.
I'm also thinking about adding GPX and OSM XML import/export support
to OpenJUMP.
Please let me know if you have any thoughts.
The Sunburned Surveyor
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