New Exploroz feature - GDEM dataset
Submitted: Wednesday, Feb 24, 2010 at 20:54
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equinox
That's great that all the
places now have accurate altitude figures.
After having a play here I have a couple of questions.
Can anyone tell me how I can find the altitude of any location in Australia, not necessarily one that is in
places?
Is it possible to extract an altitude profile between two selected points?
Cheers
Alan
Reply By: Member - Boobook - Thursday, Feb 25, 2010 at 09:21
Thursday, Feb 25, 2010 at 09:21
Alan, do you have the 3d / elevation option in Ozi?
If so you need to download the SRTM Height data from Nasa which is super easy, click on 3D / elevation menu then down load world data.
Then click on the"show elevation data" and it will show th eelevation at the cursor.
The data is the height as measured from the shuttle every 90m
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Reply By: ExplorOz - David & Michelle - Thursday, Feb 25, 2010 at 11:43
Thursday, Feb 25, 2010 at 11:43
Alan,
Good pick up and good questions. Firstly when I wrote the blog yesterday I had started the Alt at any point, as yet I have not installed it. The answer to this question and question two are along the same lines.
To get a driving direction and or profile between two points - at present you must be able to drive between the two point so we need a driving direction so to do this Open up the features option and select the top box - New point at Click - This will enable the option the create new markers at the point you click on the map (this is where the altitude result will be shown) - So then click on your start point and when it is shown click the From here (this will show the Direction panel and will insert the start point in the system) then click on the map at your end point and then select To here (this will show the direction panel again this time filling in the End point - once these are loaded click on the create route and once this is loaded you will be able to draw the altitude profile using the Show Profile option.
I hope this makes sense - if you have any problems please ask.
PS: The profile system currently breaks the route into 50 points and draws the altitude of the 50 points in the graph thus it is best to use short routes of 25-50 kms for the best accuracy. I am working on this at the moment but that is where it is at right now.
David
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