KARTOGRAPH.JS DOWNLOAD FREE

You can help improving it by submitting any bug you encounter, or, even better, directly patching this page on Github. Your example really helped me! In the above example this would be:. Polygonal features are joined using union , while linear features are joined using linemerge. Writing documentation and keeping it up to date is a lot of work. This is how you include the region names as new attribute "name". To get around this you actually should try to get higher quality geo data, as there is no easy way to fix the topology automatically.

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However, if you have lots of layers this might be a bit too much.

The keys must be group ids as defined by group-by column. Although you can use the kartoograph.js in filtering of Kartograph. I had no previous experience with JavaScript and the example of how to insert a map in html were vague!

That is it basically - it is not showing anything. Thanks kartigraph.js this example. Adding the css file is quite tricky, because of the IExplorer compatibility.

Kartograph supports different convenient ways to define how to clip the map. It accepted the layers as a list of dictionaries. In some situations you can leave out some projection parameters or set them to "auto".

The default algorithm is the Visvalingam-Whyatt simplificationwhich has nicely explained by Mike Bostock. Posted by Unknown at S Lop March 11, at 8: Try without using it to understand what happens. Sometimes you just want to focus the map on one feature while keeping other features visible around it.

kartograph-js

So it seems you don't need to say map. The meaning of tolerance varies between the different algorithms, but in general it's the higher the tolerance, the stronger the simplification and the smaller the file size. You can help improving it by submitting any bug you encounter, or, even better, directly patching this page on Github. Finally, you may also freely define which features should be joined into which group, by adding a dictionary layer.

Usually you only need very very small buffering to fix these issues. Therefor you can add filter to the kartorgaph.js data attribute. A simple kartorgaph.js lightweight framework for creating beautiful, interactive vector maps.

The following loadMap kartograpph.js works for me: Then, Kartograph will try to figure out useful values itself e. So i downloaded a map from here Looked into the file to find that the id for the first and only 'g' is 'admin1'.

GeoExamples: kartograph tutorial II: going interactive

However, there is a simple trick that sometimes works, which is to apply a tiny buffering to the polygons before joining them. The elections were celebrated and CiU won again, but with less votes.

The function in loadCSS will be now:. To avoid conflicts with shapefiles you need to prepend " postgis: Please see the edited answer.

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Kartograph will then look in these directories if it cannot find a shapefile. Assuming a shapefile that has forestation polygons for Europe, the following would crop the forests to the shape of Germany:. This will add the attributes set in the shapefile geometries to the SVG geometries. That's what the polygons mode is for. The following would force Kartograph to round all coordinates to the first decimal digit e.