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osgEarth, VirtualPlanetBuilder best use, right for my needs?


 
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konglom
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Joined: 24 May 2014
Posts: 4

PostPosted: Mon May 26, 2014 1:38 pm    Post subject:
osgEarth, VirtualPlanetBuilder best use, right for my needs?
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Hey guys,

I am quite new to OSG and i am a bit unsure if i have the right approach.
I like to use osgEarth or VPB to use the actual elevation data of the earth in a really high resolution and then draw a heightmap out of it. This heightmap should be possibly animatable. I like for example let areas blink or fade. change colors depending on elevation or user settings in realtime.
Beside that I like to draw paths onto my elevation map like a circle and get elevation data of my height map at the position along the circle. It would also be great to manipulate the circle size and position. I think for the manipulation I can use osgManipulator class. But for the measurement I am not sure what i should use.

I am not sure how customizable VPB or osgEarth are and if it is possible to change all the environment variables which are set by default?
For example only use a 2d like view of the earth from above like in google maps.

So i like to ask you for some hints to point me into the right direction.

- Which should I use for my needs VPB or osgEarth?
- what is the best data source for my needs? ( I like really high resolution data. I did some test with material which was really low resolution.)
- How can i draw a circle and measure the elevation data along the circle?
- What is the best way to animate my heightmap texture? Is it possible to animate the vertex color in this context of vpb and osgEarth?

Thanks! Smile
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Chris Hanson
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PostPosted: Tue May 27, 2014 6:29 pm    Post subject:
osgEarth, VirtualPlanetBuilder best use, right for my needs?
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I think osgEarth is probably your best bet. VPB doesn't really offer any opportunities for animatable heightmaps. Also, osgEarth has quite a bit larger feature set.

Check it out and I'd be happy to answer any questions.



On Mon, May 26, 2014 at 7:39 AM, Robert Grah < (
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)> wrote:
Quote:
Hey guys,

I am quite new to OSG and i am a bit unsure if i have the right approach.
I like to use osgEarth or VPB to use the actual elevation data of the earth in a really high resolution and then draw a heightmap out of it. This heightmap should be possibly animatable. I like for example let areas blink or fade. change colors depending on elevation or user settings in realtime.
Beside that I like to draw paths onto my elevation map like a circle and get elevation data of my height map at the position along the circle. It would also be great to manipulate the circle size and position. I think for the manipulation I can use osgManipulator class. But for the measurement I am not sure what i should use.

I am not sure how customizable VPB or osgEarth are and if it is possible to change all the environment variables which are set by default?
For example only use a 2d like view of the earth from above like in google maps.

So i like to ask you for some hints to point me into the right direction.

- Which should I use for my needs VPB or osgEarth?
- what is the best data source for my needs? ( I like really high resolution data.  I did some test with material which was really low resolution.)
- How can i draw a circle and measure the elevation data along the circle?
- What is the best way to animate my heightmap texture? Is it possible to animate the vertex color in this context of vpb and osgEarth?

Thanks! Smile

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konglom
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Joined: 24 May 2014
Posts: 4

PostPosted: Wed May 28, 2014 10:40 am    Post subject:
Reply with quote

Thanks.
I will check it out...
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Michael Weiblen
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PostPosted: Wed May 28, 2014 9:30 pm    Post subject:
osgEarth, VirtualPlanetBuilder best use, right for my needs?
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hi,
what do you consider 'high-resolution' data and where do you need it? USGS has 1/3 arcsecond elevation for all CONUS downloadable via The National Map website, and some 1/9 arcsecond in areas.
-- mew
On May 26, 2014 7:39 AM, "Robert Grah" < (
Only registered users can see emails on this board!
Get registred or enter the forums!
)> wrote:
Quote:
Hey guys,

I am quite new to OSG and i am a bit unsure if i have the right approach.
I like to use osgEarth or VPB to use the actual elevation data of the earth in a really high resolution and then draw a heightmap out of it. This heightmap should be possibly animatable. I like for example let areas blink or fade. change colors depending on elevation or user settings in realtime.
Beside that I like to draw paths onto my elevation map like a circle and get elevation data of my height map at the position along the circle. It would also be great to manipulate the circle size and position. I think for the manipulation I can use osgManipulator class. But for the measurement I am not sure what i should use.

I am not sure how customizable VPB or osgEarth are and if it is possible to change all the environment variables which are set by default?
For example only use a 2d like view of the earth from above like in google maps.

So i like to ask you for some hints to point me into the right direction.

- Which should I use for my needs VPB or osgEarth?
- what is the best data source for my needs? ( I like really high resolution data.  I did some test with material which was really low resolution.)
- How can i draw a circle and measure the elevation data along the circle?
- What is the best way to animate my heightmap texture? Is it possible to animate the vertex color in this context of vpb and osgEarth?

Thanks! Smile

------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=59565#59565





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