Given a point, latitude and longitude, how would one find the coordinates of a rectangle centered on that point with a known width and height in meters? I tried using the Geodesic stuff from geographiclib in python to compute the rectangle coordinates, but the resulting rectangle has the wrong aspect ratio. The general idea here is to compute a rectangle around a given point and then use that rectangle to clip LANDSAT 8 imagery to a final image with a known aspect ratio.
Sorry if this is a dumb question, I've just started doing work with GIS recently.
I tried modifying my code to do something like what the first answer below does, but this doesn't quite work for me, I run into the same problem I was having before, when I clip the landsat tiff I get an image with the wrong aspect ratio. The command I'm using to clip the geotiff looks something like this
gdalwarp -of gtiff -t_srs EPSG:4326 -te <bounds from the polygon that I calculated> input.tif output.tif.
The width and height I used should give me an image with an aspect ratio of 1.6 but instead I get an image with an aspect ratio of about 1.9 or so.