Mapbox矢量图块MVT缺少数据 [英] Mapbox vector tile MVT is missing data

问题描述

我正在尝试为Mapbox MVT矢量图块制作自己的渲染器，但遇到了障碍，无法找到答案.我的问题是，从Mapbox服务器下载的MVT磁贴包含所有道路，但只有几个扩建数字(对于给定区域应该更多)而没有土地类型(在地图上为大面积)和建筑物.

有人遇到同样的问题或知道答案吗?

我用来下载图块的

链接是: https://api.mapbox.com/v4/mapbox.mapbox-terrain-v2,mapbox.mapbox-streets-v7/18/143415/87627.mvt?access_token= {access_token}

相同区域的栅格图块下方:

解决方案

诀窍在于解码MVT切片(使用 mapbox-vector-tile-java )，以对其进行正确解析 MvtReader.RING_CLASSIFIER_V1 :

final JtsMvt result = MvtReader.loadMvt(f, new GeometryFactory(), new TagKeyValueMapConverter(), MvtReader.RING_CLASSIFIER_V1);

已解决，感谢在mapsforge/vtm上的粗体提交

I'm trying to make my own renderer for Mapbox MVT vector tiles, but I have hit the obstacle and couldn't find the answer. My problem is that MVT tile downloaded form Mapbox server contains all roads, but only a few bulding numbers (should be much more for given area) and no land types (grean area on map) and buildings.

Anyone had same problem or know the answer?

link I use to download tile is: https://api.mapbox.com/v4/mapbox.mapbox-terrain-v2,mapbox.mapbox-streets-v7/18/143415/87627.mvt?access_token={access_token}

Below raster tile for the same area:

解决方案

The trick is in decoding MVT tiles (using mapbox-vector-tile-java), to parse it properly MvtReader.RING_CLASSIFIER_V1 needs to be used:

final JtsMvt result = MvtReader.loadMvt(f, new GeometryFactory(), new TagKeyValueMapConverter(), MvtReader.RING_CLASSIFIER_V1);

Resolved thanks to boldtrn commit on mapsforge/vtm

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