basic map visualization question

Sam
2013 4 15
1 个回答
6 次查看（30 天）

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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)

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回答（1 个）

Sean de Wolski
Sean de Wolski 2013-4-15

0 个投票

Perhaps:
doc mapshow
doc geoshow
?
Could you post a sample of your data

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Sam
Sam 2013-4-15
编辑：Sam 2013-4-15
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...

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Sam
Sam
2013-4-15

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