Hot answers tagged overlay
This is an example of what you can do with rasterVis and sp packages. You will have to adapt to your own use. library(rasterVis) library(sp) # Download States boundaries (might take time) out <- getData('GADM', country='United States', level=1) # Extract California state California <- out[out$NAME_1 %in% 'California',] # Plot raster and California: ...
Just to be clear, the 'old' raster(s) is/are NOT in a Mosaic dataset currently, and the old raster is in one large (seamless) raster. The 'new' rasters are tile-based and have already been loaded into a Mosaic dataset. Here is my recommended solution: Create an 'old' Mosaic dataset from the 'old' seamless raster using the tile boundaries from the new ...
I would look into Synchronizing Mosaic Datasets, this should add the newer imagery on top of the older imagery. You can then change the mosaic method you use, to sort by a date field when the image was captured.
No, you cannot do that or those sort of tasks in Google Earth. Your best investment would be QGIS. Use the OSGEO Network Installer if you can. The process you will use depends on the format of the map that you propose to overlay. Is it another vector layer? If so, is it a complete polygon or just a line which encloses the area of interest. For a one off ...
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