mapbox-gl-js
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mapbox
Add ability to control feature altitude via a style spec property
Continued from https://github.com/mapbox/DEPRECATED-mapbox-gl/issues/6
@peterqliu We should take advantage of the extra dimension that map pitching affords us, and use depth to visualize overlapping elements that would otherwise obstruct each other.
Currently, the layer stack order is dictated by the sequence it was specified in the stylesheet; when applied, the proposed z-offset would override that. This is analogous to HTML's natural stacking order overridden by
z-indexin CSS.Also, label rendering order is currently tightly bound to layers' z-order, because they both key off of the stylesheet layer sequence. Adding z-offset will free us to decide which layers get rendering priority, regardless of whether they go above or below other layers.
cc @lucaswoj @kkaefer
cc @tmcw @samanpwbb @jfirebaugh @ansis
Allowing polygons and symbols to have an altitude or z value would then mean that data presented by fill-extrusion could be represented and interrogated consistent with the 3D presentation [mockup]:
I didn't, the image is just a mockup, created in Photoshop, of how I would like it to work!
Is there any progress on this feature? I'm building a indoor 3D application and need to have markers or popups to offset from the terrain when the map is pitched. Is there an alternative solution to make this work?
We're currently working on a new approach to symbol placement (collision avoidance) that will be able to handle symbols with z offsets. After we finish that we can take a look at adding this to the spec and implementing it.
Thanks peterqliu, and I know about this roadmap, but I would expect that big company/startup as Mapbox to have more detailed roadmap, than 4 features in progress and 4 feature in long-term. So I don't see any plans even for z offsets
Any updates on this? I have need of this for a client project where we have several raster layers stacked that need an offset so you can tell them apart.
@xkisu, @mariokam the new approach to symbol placement is being ported from here to mapbox/mapbox-gl-native. We'll be able to start looking at this after that is done.
I hope mapbox can support altitude in geojson or can set height attribute in a layer..
We're setting a raster layer height value and it does draw the layer but only at certain angles. Will this issue (above) address that? It looks like some sort of clipping occurs depending on angle. Any tip?
Another vote for supporting relatively basic 3d features in the sense of being able to show overlapping features in 3d space (map pitch) - i.e. a bridge crossing a road, or multiple floor levels inside a building shell. i.e. very simple support for a z-height coordinate, not unlike PostGIS supports a height coordinate.
well, i am just hit this when i want to show an indoor map. all is ok, except for the symbol on top of Extrude layer my example url
This is something that we'd very much like to see and seems like a necessity in a platform that supports 3d mapping. Are there any updates on a timeline for this? Is there any comparable functionality already existing in the native-sdks?
We need a feature, like being able to set the z offset or base height to speak in fill extrusion lang, too. Please give us feedback about related plans.
@maroonedione @fea17e86 @leehoss This is on our radar, but not currently on our roadmap over the next 6 months.
https://deck.gl/#/examples/overview?section=core-layers is able to do it and it can also be integrated with mapbox.
Some work on this is being done in the Vector Tile 3 specification. This is part of the team's long term roadmap, but there is not a timeframe for it as yet.
