I'm working on a TileMill project essentially displaying freight routes. The original shapefile contains a origin city and a destination city (and a path between both cities). When I apply a marker-type:arrow; /marker-placement:line; code in CartoCSS, I just don't quite understand the logic of how arrow direction actually gets assigned in this case. Ideally obviously I would like the arrows to point in the origin city to destination city direction.
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Each line has a 'direction', defined implicitly by the order of coordinates of the geometry. If the result is backwards, I suspect your geometry has been defined 'backwards'; that is, it was drawn destination→origin, rather than origin→destination.– alphabetasoupCommented Jan 17, 2015 at 23:08
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I want to add arrows to my basemap, the arrows are hidden under roads, they are not appear on the roads and I don't know if they are in the right direction and for both of direction in the same road, how to make it? I use : ::decoration [zoom >= 16]{ marker-type:arrow; marker-placement:line; }– Loubna barraCommented Sep 6, 2016 at 13:08
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Please, don't post questions in the answer box. Thanks.– Andre SilvaCommented Sep 6, 2016 at 13:28
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If you have a new question, please ask it by clicking the Ask Question button. Include a link to this question if it helps provide context. - From Review– rcsCommented Sep 6, 2016 at 15:00
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1 Answer
Try something like this.
{
line-join: round;
line-width:3;
line-color:blue;
::decoration {
marker-type:arrow;
marker-placement:vertex-last;
}
}
