basic map visualization question

1 view (last 30 days)
Sam
Sam on 15 Apr 2013
Hi,
I have two datasets, a georeferenced raster (from tif) and a sparse point dataset with x,y vectors of euclidian coords. They share the same projection, and I need to overlay them the ensure MATLAB 'sees' them as co-located. When I 'plot' the raster using imagesc() the axes are not euclidean and the points don't appear. What is the easiest way to overlay these two datasets in MATLAB?
XI = xyvar(:,1);
YI = xyvar(:,2);
%%EXTRACT SPATIAL INFO FROM REFERENCED RASTER
[rast, rast_REFMAT, s1m_BBOX] = geotiffread('sedgwick_1m_utm10n_wgs84_updated.tif');
imagesc(rast)
hold on
plot(XI,YI)

Answers (1)

Sean de Wolski
Sean de Wolski on 15 Apr 2013
Perhaps:
doc mapshow
doc geoshow
?
Could you post a sample of your data
  1 Comment
Sam
Sam on 15 Apr 2013
Edited: Sam on 15 Apr 2013
The raster is a georeferenced tif with array, reference matrix and bounding box. The point data is an x,y array with UTM values, such as
771845.3616, 3843617.4871
771733.1612, 3843025.3387
772311.2746, 3843050.1742
etc...

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!