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Add an option to calculate feature density as a feature attribute

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Eric Fischer
2016-05-27 16:25:40 -07:00
parent 4030cc7c58
commit 692112ec3a
7 changed files with 58 additions and 6 deletions
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man/tippecanoe.1
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@@ -145,6 +145,8 @@ which may not be what you want.
\-al or \-\-drop\-lines: Let "dot" dropping at lower zooms apply to lines too
.IP \(bu 2
\-ap or \-\-drop\-polygons: Let "dot" dropping at lower zooms apply to polygons too
.IP \(bu 2
\-ag or \-\-calculate\-feature\-density: Add a new attribute, \fB\fCtippecanoe_feature_density\fR, to each feature, to record how densely features are spaced in that area of the tile. You can use this attribute in the style to produce a glowing effect where points are densely packed. It can range from 0 in the sparsest areas to 255 in the densest.
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