In ocassions, when the geographic information is very dense or complex, as with shaded reliefs, mountains or physical layers, the raster layers are useful. I have a specific product with physical layers in vector format, but is very “heavy”. When we don´t need hight detail, the raster layers can be the best solution. But, in some ocasions, we can found a problem like this…
1.- Maptorian vector map with physical layer in raster format, distant view.
2.- The same map, in zoom view. See how the physical layer is pixelated.
A trick to “repair” the problem (without use vector layers) consists in the gaussian filter. This is a filter inherit from Photoshop, but instaled with Adobe Illustrator natively. To proceed: first, select the raster layer, then apply the filter:
Effect –> (Photoshop Effects) –> Blur –> Gaussian blur (radius 1.0 or 2.0 pixels).
3.- The new map, after execute the filter, have a more soft aspect.