[OSM-dev] kothic-js demo with LandForm Panorama contours on Freemap

Philipp Borgers borgers at mi.fu-berlin.de
Mon Jan 2 22:13:36 GMT 2012

Could you open source the hole code? I'm missing the functionsnew.php
file in features.php.

I'm trying to port your code to nodejs. Client side code is
"finished"/works. Now I want to implement the server side code.

Going to put this on github as soon as it is more or less complete.

Have you contacted the kothic-js developer about your patch? Would be
cool if we get this upstream.


On Fri, 2011-12-30 at 11:33 +0000, Nick Whitelegg wrote:
> Hi,
> Over Christmas I've been knocking together a demo which uses kothic-js
> client side rendering for Freemap, incorporating LandForm PANORAMA
> contours.
> You can see it at http://www.free-map.org.uk/0.6/; full details on the
> blog post at http://www.free-map.org.uk/wordpress/?p=221. It's best
> viewed in Chrome (see the blog post), though it's been tested on
> Firefox 8 and Opera 11.6 as well.
> To summarise: I'm pretty impressed with the lightweight clean
> simplicity of the components (e.g. Leaflet, geojson, mapcss, most of
> which I hadn't played with until now) and am generally pleased with
> the performance of kothic-js itself. One or two issues (not sure if
> the developers of kothic can answer these): I'm having difficulty with
> line features at tile boundaries. If any line features have
> coordinates of x=0 or y=0, or x=granularity or y=granularity, the
> whole tile rendering messes up, consequently I have to convert such
> coordinates to 1 or granularity-1 respectively. I use postgis
> ST_Intersection() with the bounding box to crop the geometries.
> Polygon features don't seem to have this problem... any idea?
> Overall though I'm impressed and consequently kothic-js is likely to
> form the basis of the next revision of Freemap.
> Nick
> _______________________________________________
> dev mailing list
> dev at openstreetmap.org
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