Check whether GML contains elevation info?

Question

How can I check in QGIS whether a GML file has elevation information, or z coordinates?

It definitely has some overlapping polygons, but I'm not sure whether the ordering of the overlap is specified or not.

Ian Turton · Accepted Answer · 2018-01-19 11:37:52Z

1

The easiest way is to look at the pos or poslist elements to see what the srsDimension attribute is - the default is 2 if it is missing.

<gml:pos srsDimension="2">45.67 88.56</gml:pos>

<gml:posList srsDimension="2">45.67 88.56 55.56 89.44</gml:posList>

answered Jan 19 '18 at 11:37

Ian Turton♦

55.9k5 gold badges52 silver badges129 bronze badges

Thanks! No srsDimension attribute at all, so I guess it's 2. – Richard Jan 19 '18 at 12:57

add a comment |

1 Answer 1