basic map visualization question

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)

답변 (1개)

Sean de Wolski
Sean de Wolski 2013년 4월 15일

0 개 추천

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

댓글 수: 1

Sam
Sam 2013년 4월 15일
편집: Sam 2013년 4월 15일
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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도움말 센터File Exchange에서 Image Processing Toolbox에 대해 자세히 알아보기

질문:

Sam
2013년 4월 15일

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