What will happen in my GIS if I load a GeoTIFF image?
When users “click on” a TIFF image in a GeoTIFF-savvy reader and it comes up on their screen the image should be automatically “georeferenced” to correct position and scale, with respect to the cartographic parameters of the users “map projection.” Thus the GeoTIFF image should display “in the right position”, compared to other features in the computer display (such as roads, hydrology, or similar mapped features). In this way, a satellite image of, say, San Francisco, will position itself in the GIS in San Francisco, and the roads, streams, and coastlines in the GIS coverages will overlay on top of the image. This is useful for any GIS applications where the user wants to see both the digital map, and a picture of the same area in the same geometric reference. From this a user can “heads-up” digitize, interpret features visible on the image, or conduct other raster/vector processes supported by the GIS.
