That appears to do exactly what I want. Thanks.
Peter, thoughts?
On 03/07/2009, at 10:07 PM, Adam Nowacki wrote:
Something like:
OGRSpatialReference sr;
sr.SetFromUserInput("+proj=geocent");
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eve your goal.
The later chapters give the equations for the various projections.
Best wishes,
Peter
Christopher Hunt wrote:
Sorry for the hopefully not so dumb question here.
If I want to transform from one projection to a projection of the
earth in 3D, how would I set up my target sr
Sorry for the hopefully not so dumb question here.
If I want to transform from one projection to a projection of the
earth in 3D, how would I set up my target srs?
I want to take a WGS-84 lat/long/elevation and have an x,y,z returned
in metres.
Here's my present code:
// Read the image
Hi there,
I've just started using the classes from the ogr_geometry API and note
that they do not obey the C++ Rule of Three:
http://en.wikipedia.org/wiki/Rule_of_three_(C%2B%2B_programming)
Perhaps the copy ctor and assignment operators should receive a
private scope in OGRGeometry unless
a_srs EPSG:27700 ...
Anyhow all good. Thanks for the help.
Cheers,
-C
On 16/08/2008, at 7:54 PM, Christopher Hunt wrote:
Thanks for your reply Frank.
On 16/08/2008, at 2:05 PM, Frank Warmerdam wrote:
I believe EPSG:27700 is British National Grid which is a projected
coordinate system based o
Thanks for your reply Frank.
On 16/08/2008, at 2:05 PM, Frank Warmerdam wrote:
I believe EPSG:27700 is British National Grid which is a projected
coordinate system based on the OSGB 1936 datum. So you should
ensure the provider means the dataset is actually in BNG, in addition
to being based o
Hi again Frank et. al,
I've made some progress. The aerial image provider now tells me that
it is projected as OSGB 1936 which I believe is EPSG:27700. Thus if I
use a command like:
gdal_translate -a_srs EPSG:27700 -a_ullr
then I should be able to create my GeoTIFF.
Unfortunately the
tres?
How do I centre a projection? lat_0 and lon_0 values?
Thanks again for your time - I appreciate that time is precious.
Cheers,
-C
On 30/07/2008, at 5:38 PM, Christopher Hunt wrote:
On 30/07/2008, at 9:07 AM, Frank Warmerdam wrote:
Christopher Hunt wrote:
Hi Frank,
Thanks for the reply
On 30/07/2008, at 9:07 AM, Frank Warmerdam wrote:
Christopher Hunt wrote:
Hi Frank,
Thanks for the reply and for the confirmation that I'm on the right
track.
Dumb newbie question: wouldn't most aerial photos taken, say, from
12,000ft be ortho in their projection?
Christopher
Hi Frank,
Thanks for the reply and for the confirmation that I'm on the right
track.
Dumb newbie question: wouldn't most aerial photos taken, say, from
12,000ft be ortho in their projection?
Cheers,
-C
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Hi there,
Being new to gdal I'm hoping that someone can help me by verifying my
gdal_translate command. Thanks in advance.
I have an aerial photo of an airport which I therefore assume is
orthographic. Three points have been provided to me which I am
assuming to be wgs84:
point1 = -0.49
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