I downloaded an application for Ipad that has left me more than satisfied, in the need I had to do tracking with a gps to then view it online or with Google Earth.
This is Gaia GPS, an application that costs just 12 dollars but that is so functional for mobile phones with Apple and Android operating systems. Its capabilities go beyond capturing a route, since in addition to everytrail.com you can display photos, routes on Google Maps and even export to GPX to use it with a conventional browser and kml to view it in 3D on Google Earth.
Let's review in detail what can be done with this toy.
1 Navigation with the Ipad
The application is only to download it, once installed allows several routines almost enough for what I had in my expectations:
- You can create routes, indicating when to start, when to pause the capture and when to continue.
- In the background you can view Open Street Maps or topographic maps with global coverage.
- You can display more than 10 millions of known points, such as mountains, river crossings, communities and other points of interest.
- The GPS does not depend if there is an Internet connection, it still captures although the display of images only shows what is in cache.
- To prevent this, you can save an area as a mosaic of images to display it Tileada Even without connection.
- Stores a graphic and statistical count of each capture point along the route, which can be seen in real time; with data such as geographic coordinates or UTM, current speed, average speed of the trip, altitude above sea level, distance traveled, etc.
With Ipad, the experience is much better than with the phone, because of the size of the display and the ease of using the fingers to interact. Then, the route can be stored and redeployed for analysis at any time.
Of the best, it can run in the background, so that you can go working in other functionality with the Ipad or in a hibernated state. At any time it is activated, and the tour stops or starts a new one without consuming more memory or battery.
2 Display on Google Maps.
To do this, you must register on everytrail.com, including Logging in with Facebook user. Then, from the Ipad the route is touched and the option to export is chosen; it is stored as a new file in My trips; Which can be public or private.
Here comes the good, you can show using layers of Google Maps in the background, whether satellite view, relief, map or hybrid.
The red line is the captured route. In the graph, the profile is shown in light blue and in orange profile the speed of travel in kilometers per hour. Also the summary, in that route I did of 13 kilometers in 14 minutes and in a descent of almost 400 meters.
This graph can even be executed as a video as shown below, although it looks larger en línea.
GPS Accuracy of the Ipad?
It's not bad, it's like any browser. Walk between 3 and 6 meters; It can be seen clearly in the sample image; although it would be necessary to try capturing of static form because there it was on the vehicle at a speed of about 50 kilometers per hour and in some cases it was proving the difference when changing the times of capture by distance or seconds. Chulo On the road, see what a big difference with the traces that Google has in most non-urban areas of Hispanic American countries.
Of course, it does not fall in all cases so well with the Google Earth photo, not because the device loses accuracy, but because the image of Google presents displacements between 10 and 20 meters in rural areas far from large cities or with quite irregular topographies where the simplicity of the land model used affected its georeferencing.
Edit and export it to other formats
Online allows you to add new routes, including clicking on the map and editing by dragging vertices; Another very good functionality is that you can generate a new one that contains them from several routes. Not bad as it can be sent to GPX, in order to mount it on other devices such as a Garmin, Magellan, SPOT Satellite Messenger, Blackberry, etc. The page also supports uploading GPX files captured with any GPS navigator.
Additionally, it can be exported to kml, where it can be viewed in 3D.
Not bad, sure there are other applications but this seems to me the best, in complement with the functionalities of the web page that solves the need to upload, create, edit or display online gpx file of waypoints or tracks.