[Qgis-user] getting square raster images from MODIS tiff files into QGIS

Peter Borissow peter.borissow at yahoo.com
Tue Apr 14 06:35:01 PDT 2015


I don't know if QGIS supports this feature out of the box. In the past, I used MRTSwath to orthorectify MODIS:
https://lpdaac.usgs.gov/tools/modis_reprojection_tool_swath

OTB and OSSIM are 2 open source libraries that can be used to rectify satellite images as well.
Peter
      From: Don McNeil <don.mcneil at mq.edu.au>
 To: qgis-user at lists.osgeo.org 
 Sent: Tuesday, April 14, 2015 1:09 AM
 Subject: [Qgis-user] getting square raster images from MODIS tiff files into QGIS
   
Dear QGIS Gurus:
My problem is that, having already created vector layers for a region in separate sub-windows of QGIS, when I create an additional layer for a raster image by opening a MODIS TIFF file for the same region, it appears as a trapezium rather than a rectangle, and when I try to convert it to a rectangle by specifying the UTM location, the vector images disappear. So I can't show both the squared raster image and the vector images together.
I emailed a friend who uses other GIS software (including ArcGIS, ERDAS and IDRISI) and he suggested that I might need a process of rectification for adjusting the shape and position of the image to the real position instead of just changing the coordination. If so, does Quantum GIS have a function to do that?
kind regards....Don
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