Hi, Which style are you using?
MapCSS styles can be pretty fast. It depends on the style you used how fast it really is. You can use --trace to display the rendering times (style preparation and actual drawing) Some things to keep in mind for style performance: - [key=value] selectors use a fast lookup. Use them as much as you can. - [key] selectors (and other selectors requiring the presence of a key) are only taken into account for that single key. - * selectors are very expensive. - Avoid complex expressions Style computation is cached. The most dominant work is to actually paint the image. Those are things you should avoid: - Dashed lines - Texts, especially texts on ways - Icons - Multiple draw passes per element (outlines, ...) So you should get MapCSS drawing pretty fast by creating your own style. Michael PS: In my opinion, we should even remove the wireframe mode. MapCSS can handle those simple things almost as fast as the current wireframe implementation. Am 28.03.2016 um 14:49 schrieb Ilya Zverev: > Hi, > > Two weeks ago XML style and the corresponding infrastructure were removed > from JOSM (see https://josm.openstreetmap.de/ticket/12282). I was a frequent > user of that style, because it is much faster than the MapCSS one. Especially > when there are hundreds thousands of nodes in a view. > > Today I've tried to fix the multipolygon relation of lake Ladoga: > https://josm.openstreetmap.de/ticket/12282 (2k members), and when zoomed out, > JOSM works with 1 frame per 5 seconds, even for button presses. A month ago I > would just enable the XML style and proceed to fix the relation. Now the only > options seems to be enabling the wireframe mode. But it is too bare for any > serious work. > > So, is there a way to have a custom build with XML styles or to enable these > the hard way? > Did removing XML styles make anything better in JOSM? > > IZ > _______________________________________________ > josm-dev mailing list > josm-dev@openstreetmap.org > https://lists.openstreetmap.org/listinfo/josm-dev > _______________________________________________ josm-dev mailing list josm-dev@openstreetmap.org https://lists.openstreetmap.org/listinfo/josm-dev
