Robert Osfield wrote:
> Hi Mike,
>
> On 6/28/06, Mike Weiblen <[EMAIL PROTECTED]> wrote:
>
>> I was trying to quickly view a heightfield image using the "--dem"
>> flag, but it
>> doesn't seem to work. Seems only the gdal plug implements
>> readHeightField(),
>> but I thought this worked directly with some image plugins in the past?
>
> --dem only really exists to exercise the GDAL plugin, you need all the
> coordinates of geotiff or a dem that only GDAL can read, the other
> plugins just read images so don't have enough info to help create a
> properly sized image.
my intent was to render generic heightfield images, such as depth images or math
data on a regular square grid, no geolocation nor projection necessary.
>> Any suggestions how to view a height image without generating with
>> osgdem?
>> Perhaps could --dem force gdal to load the image?
>
> You could possibly have other plugins that could support the
> readHeightField, so tiring tothe GDAL plugin doesn't seem appropriate.
but currently few (no?) image plugins actually implement readHeightField. I
didn't necessarily want to tie to gdal per se, but it seemed a quick converter
from raster to height data.
I was pondering a generic heightfield pseudoloader like:
osgviewer data.png.heightfield
> Can't you just pre load the gdal plugin?
>
> osgviewer -e gdal --dem mymodel.tif
indeed, that worked great!
thanks
-- mew
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