[OSM-talk] OSM map renderer - update
nick at hogweed.org
nick at hogweed.org
Thu Apr 20 13:29:26 BST 2006
Progress report on renderer (nick.dev.openstreetmap.org/index.php)... my last
for a few days:
-It now looks passable at street level. I have done this by grabbing a
progressively bigger area of data relative to the tile size as you zoom in.
This seems to be the fastest way of dealing with the 'segments crossing the
tile' problem for the moment.
-As I indicated yesterday ImageMagick seems to be the way to go for
antialiasing etc. The most regularly maintained ImageMagick API appears to be
the newer "MagickWand" API, however the installation instructions imply
recompiling the whole of PHP. I've emailed the author of the "MagickWand" PHP
bindings to see if this is strictly necessary.
There's the possibility of converting the whole thing to Ruby and using the
ruby-magick API (would give me an excuse to learn Ruby properly anyhow...)
but my main concern here would be converting the contour-generation code...
this would be quite a big job :-)
Nick
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