| Re: [udig-devel] Re: [Geotools-devel] Rendering and UDIG -- Sanity Check |
- It generalize the geometry (i.e. apply a decimation) according the current scale *before* to project the coordinates on the fly. Concequently, there is much less points to transform --> faster rendering.
Wow, how do you do that? I would immagine that it is very hard to know how far apart two points will end up before re projecting in order to know if they will be coincident. Or does this just refer to dropping polygons? (Still very cool)
- It is capable to transform straight lines into curves for some kind of lines.
Also very cool.One thing that would be useful here is a bit more info on what uDIG needs from its renderer, especially with regards precision. I know that a key goal is to enable editing (as which point generalization gets in the way rather than being helpful). I can see the need therefor for a distinction between 'background' or 'context' layers and 'critical' or 'reference' layers. One cirtiesm of j2d was that it used floats instead of doubles, perhaps doubles are only needed some of the time?
James