How are MapTEACH lessons set up to avoid disappearing raster images?
In the lessons, the native projection for each raster image is often set to match the projection (coordinate system) selected for the map. When they match, there is no delay required to recalculate the location of each pixel in the image before the layer can be displayed. When the images are small enough for AEJEE to reproject on-the-fly in reasonable time, we don’t need to have the projections match. • Why does AEJEE take so long to redraw my map? Many factors can affect how long AEJEE takes to redraw: a) the size of files (map layers) vs your computer’s speed b) reprojection c) complex rendering of data — solutions include pre processing raster images, and using native projections where possible. Note that a bug in AEJEE that defaults to WGS84 on reopen even when originally set to NAD83.
Related Questions
- Which license do I need if I want to do vector annotation on raster/vector images manipulating and viewing it in my application. Do I need only THBVector?
- My images keep being discoloured when I switch between the 2D software and other programs. What is happening and how can I avoid it?
- How are MapTEACH lessons set up to avoid disappearing raster images?
