davo

# Requiere GDAL y TopoJSON
# brew install gdal
# npm install -g topojson

all: \
	parcelario-topojson.json

parcelario.zip:
	curl -o parcelario.zip 'https://recursos-data.buenosaires.gob.ar/ckan2/parcelas/parcelas.zip'

davo

A demonstration of how to calculate the areas of Voronoi regions clipped by geographic features using D3.

[D3’s implementation](Sutherland–Hodgman algorithm) of the Sutherland–Hodgman algorithm only works for convex clip polygons, but we exploit the fact that Voronoi regions are guaranteed to be convex, and use each Voronoi region as a clip polygon, with the projected geographic boundary as a subject polygon.

In response to a question by Gonzalo Bellver.

davo

A demonstration of how to calculate the areas of Voronoi regions clipped by geographic features using D3.

[D3’s implementation](Sutherland–Hodgman algorithm) of the Sutherland–Hodgman algorithm only works for convex clip polygons, but we exploit the fact that Voronoi regions are guaranteed to be convex, and use each Voronoi region as a clip polygon, with the projected geographic boundary as a subject polygon.

In response to a question by Gonzalo Bellver.

davo

SELECT ST_Union(ST_makeValid( ST_SnapToGrid(the_geom_webmercator ,0.0001))) FROM barrios GROUP BY barrios.the_geom_webmercator

davo

Copied from http://code.lancepollard.com/complete-list-of-html-meta-tags/

Basic HTML Meta Tags

<meta charset='UTF-8'>
<meta name='keywords' content='your, tags'>
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davo

Shows multiple overlaid Voronoi diagrams, given multiple point sets.

davo

[ Launch: MoveToFront(); ] 67a496c0601757cd9d6c by davo

davo

[ Launch: Line Chart ] 02bf243349ba92fd1d80 by davo

davo

[ Launch: Line Chart ] 7854e52462147e74bd7f by davo[ Launch: Line Chart ] 02bf243349ba92fd1d80 by davo

davo

[ Launch: Word wrap with foreignObject ] 7ab1b79941e9b22b9cf0 by davo[ Launch: SVG resize to containe ] 5320723 by biovisualize[ Launch: SVG resize to containe ] 5052807 by biovisualize[ Launch Inlet ]Gist #3200444