Posts Tagged ‘gpx’

KML to Shapefile File Conversion (Zonum)

Friday, December 12th, 2008

[Editor's note: Useful free tool for converting KML files to Shapefile for use in the GIS. Thanks Mary Kate!]

Republished from Zonum Solutions. Kml2shp file conversion

Need of transferring Google Earth Data to a GIS? Kml2shp transforms KML files into ESRI Shapefiles.

Download. Windows program. No Mac version.

The KML file could contain Points, Paths and Polygons. When creating SHP files the information is separated into thematic layers.

For each shapefile (shp), an attributes table (dbf) and index file (shx) are created.

The kml to shp conversion consists of three steps:

1) Open KML file
2) Choose Shape Type
3) Select output Shapefile name

Optionally, you can change from WGS84 to a local datum and from Lat/Lon to UTM.

Also, Kml2shp can export to AutoCAD (DXF) and GPS (GPX)

kml2Shp is a beta freeware tool. This program doesn’t need to be
installed, just unzip it and run it.

kml2shp.zip contains the executable file (kml2shp.exe) and some bpl files. If you receive a message error about missing bpl files, come back here and get them.

DOWNLOAD

GPS Kit – New software app for iPhone 3G (Kelso)

Sunday, August 17th, 2008

 

Garafa published GPS Kit for the iPhone 3G on August 14th for $10. YouTube demonstration above from Garafa. I’ve spent the weekend experimenting with the app and the accuracy seems comparable to RunKeeper and iTrail which I reviewed last week. However, GPS Kit has better features, though by the time you read this iTrail will have nearly caught up. GPS Kit meets 10 of my 22 criteria for GPS on the iPhone, the same as iTrail but with GPS Kit having a higher price point but with slightly nicer package. 

The three main functions of GPS Kit are:

  • Dashboard
    • See real time information like latitude, longitude, speed, altitude, heading (cardinal direction, degree), and distance
    • User modifiable statistics (including averages) and units
  • Tracks
    • Intelligent data collection intervals: If you move fast, more points, if slow less points.
    • Save your route
    • View on iPhone in app
    • Share with anyone via email in Google Earth (KML) or Google Maps
  • Waypoints
    • Save points of interest 
    • See how far you are from each waypoint. 
    • View on iPhone in app
    • Share with anyone via email in Google Earth (KML) or Google Maps

Features I wish GPS Kit had:

  • Tracks
    • Better way to see live-GPS route tracking (now a several step process)
    • Resume dialog on restart of app after taking call or other interruption ala Distance Meter
    • Screen lock while recording tracks ala iTrail
    • View on live Google map (now just blank screen?) with both satellite, hybrid, and map tiles
    • Save with KML the stats that are currently displayed on screen for that segment of track
    • In KML record GPS accuracy (eg: accurate to 10m, 310m).
    • KML that does not have 3 nodes at each data point
    • Provide altitude readjustment by matching lat/long against SRTM elevations
    • Import tracks via KML or GPX
  • Waypoints
    • View on live Google map (now just blank screen?) with both satellite, hybrid, and map tiles
    • Set custom icon with preset of common icons
    • Import waypoints via KML or GPX
    • Attach photos to location (location is created on capture of photo)
    • See photo waypoints on the map as icons (multiple, not just active photo waypoint)
    • Click on the photo icon in map view get a big view of the photo and edit text description
    • Attach a longer text description to each location, not just the name

Screenshots of GPS Kit:

Other applications on the App Store that provide portions of similar functionality and their prices:

  • iTrail @ $3- in app map of route, plotting of statistics; has a screen lock while recording. Export to GPX and KML. No waypoint support (coming in version 1.3). Read my review.
  • RunKeeper @ $10- Geared more towards fitness activities with stats like “pace”. Needs to upload data to web service (free) to see route on map. Read my review.
  • GPS Tracker @ free – real-time tracking service including lat, long, altitude, speed, heading, and accuracy. Can export to CVS and KML. Requires web service to record and see on map.
  • gSpot @ $2 –  no privacy concerns (not published online for anyone to see as you move with the app on): lat, long, altitude, speed, heading, and accuracy. Can share waypoints via email. Can display waypoints in the iPhone’s mapping application. 
  • PathTracker @ $1 – real time map showing route/track; distance, time, average speed, current location and altitude; save your path and export in GPX and KML. Available in many different languages including Chinese, French, and Spanish.
  • gps Compass @ $2 – real time stats that are user modifiable; multiple languages including German and Japanese. No map.
  • Speedster GPS @ $1 – speed and altitude in real time with history of pervious data points. No map.
  • Distance Meter @ $3- distance, speed, and pace tracker. No map. Altitude and XY shown for current location only.
  • Geopher Lite @ $2 – distance and heading to waypoint. No map. Ability to turn GPS off in certain functions to save battery. 
  • OverHere @ $1 – email waypoint (current location). No map.
  • Altitude @ $1 – altitude with accuracy (but is it Z accuracy or XY accuracy?). No map.
  • Speed @ free – real time speedometer. No map.

All of these applications require an iPhone 3G with GPS for best performance. 

References: 

iPhone Chat.org and iPhoneFreakz.com.