This repository was archived by the owner on Aug 22, 2023. It is now read-only.
This repository was archived by the owner on Aug 22, 2023. It is now read-only.
Ability to match multiple, different elements? #13
Description
Is it possible to match against multiple, different elements without needing to create 2 stream parsers? Or, are multiple parsers on the same stream the 'right' way to do this?
For example, in the attached XML I'd like to retrieve both the gml:Envelope and cityObjectMember elements. As things stand I can only do this by creating 2 parsers each with separate event handlers, like so:
var saxStreamEnvelope = new saxpath.SaXPath(saxParser, "//gml:Envelope");
saxStreamEnvelope.on("match", function (xml) { ... });
var saxStreamCity = new saxpath.SaXPath(saxParser, "//cityObjectMember");
saxStreamCity.on("match", function (xml) { ... });XML:
<?xml version="1.0" encoding="utf-8"?>
<!-- CityGML Version No. 2.0, February 2012 -->
<!-- CityGML - GML 3.1.1 application schema for 3D city models -->
<!-- International encoding standard of the Open Geospatial Consortium, see http://www.opengeospatial.org/standards/citygml -->
<!-- Jointly developed by the Special Interest Group 3D (SIG 3D) of GDI-DE, see http://www.sig3d.org -->
<!-- For further information see: http://www.citygml.org -->
<CityModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.opengis.net/citygml/2.0"
xmlns:xAL="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0" xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:gml="http://www.opengis.net/gml" xmlns:dem="http://www.opengis.net/citygml/relief/2.0"
xmlns:bldg="http://www.opengis.net/citygml/building/2.0"
xsi:schemaLocation="http://www.opengis.net/citygml/building/2.0 http://schemas.opengis.net/citygml/building/2.0/building.xsd http://www.opengis.net/citygml/relief/2.0 http://schemas.opengis.net/citygml/relief/2.0/relief.xsd">
<gml:name>Simple 3D city model LOD1 without Appearance</gml:name>
<gml:boundedBy>
<gml:Envelope srsDimension="3" srsName="urn:ogc:def:crs,crs:EPSG::25832,crs:EPSG::5783">
<gml:lowerCorner>458868.0 5438343.0 112.0</gml:lowerCorner>
<gml:upperCorner>458892.0 5438362.0 117.0</gml:upperCorner>
</gml:Envelope>
</gml:boundedBy>
<cityObjectMember>
<bldg:Building gml:id="GML_7b1a5a6f-ddad-4c3d-a507-3eb9ee0a8e68">
<gml:name>Example Building LOD1 </gml:name>
<bldg:function codeSpace="http://www.sig3d.org/codelists/standard/building/2.0/_AbstractBuilding_function.xml">1000</bldg:function>
<bldg:yearOfConstruction>1985</bldg:yearOfConstruction>
<bldg:roofType codeSpace="http://www.sig3d.org/codelists/standard/building/2.0/_AbstractBuilding_roofType.xml">1030</bldg:roofType>
<bldg:measuredHeight uom="#m">5.0</bldg:measuredHeight>
<bldg:storeysAboveGround>1</bldg:storeysAboveGround>
<bldg:storeyHeightsAboveGround uom="#m">3.0</bldg:storeyHeightsAboveGround>
<bldg:lod1Solid>
<gml:Solid>
<gml:exterior>
<gml:CompositeSurface gml:id="lod1Surface">
<!-- Face Side 1 -->
<gml:surfaceMember>
<gml:Polygon>
<gml:exterior>
<gml:LinearRing>
<gml:posList>458875.0 5438350.0 112.0 458885.0 5438350.0 112.0 458885.0 5438350.0 116.0 458875.0 5438350.0
116.0 458875.0 5438350.0 112.0 </gml:posList>
</gml:LinearRing>
</gml:exterior
</gml:Polygon>
</gml:surfaceMember>
<!-- Face Side 2 -->
<gml:surfaceMember>
<gml:Polygon>
<gml:exterior>
<gml:LinearRing>
<gml:posList>458885.0 5438350.0 112.0 458885.0 5438355.0 112.0 458885.0 5438355.0 116.0 458885.0 5438350.0
116.0 458885.0 5438350.0 112.0 </gml:posList>
</gml:LinearRing>
</gml:exterior>
</gml:Polygon>
</gml:surfaceMember>
<!-- Face Side 3 -->
<gml:surfaceMember>
<gml:Polygon>
<gml:exterior>
<gml:LinearRing>
<gml:posList>458885.0 5438355.0 112.0 458875.0 5438355.0 112.0 458875.0 5438355.0 116.0 458885.0 5438355.0
116.0 458885.0 5438355.0 112.0 </gml:posList>
</gml:LinearRing>
</gml:exterior>
</gml:Polygon>
</gml:surfaceMember>
<!-- Face Side 4 -->
<gml:surfaceMember>
<gml:Polygon>
<gml:exterior>
<gml:LinearRing>
<gml:posList>458875.0 5438355.0 112.0 458875.0 5438350.0 112.0 458875.0 5438350.0 116.0 458875.0 5438355.0
116.0 458875.0 5438355.0 112.0 </gml:posList>
</gml:LinearRing>
</gml:exterior>
</gml:Polygon>
</gml:surfaceMember>
<!-- Face Top -->
<gml:surfaceMember>
<gml:Polygon>
<gml:exterior>
<gml:LinearRing>
<gml:posList>458875.0 5438350.0 116.0 458885.0 5438350.0 116.0 458885.0 5438355.0 116.0 458875.0 5438355.0
116.0 458875.0 5438350.0 116.0 </gml:posList>
</gml:LinearRing>
</gml:exterior>
</gml:Polygon>
</gml:surfaceMember>
<!-- Face Bottom -->
<gml:surfaceMember>
<gml:Polygon>
<gml:exterior>
<gml:LinearRing>
<gml:posList>458875.0 5438350.0 112.0 458875.0 5438355.0 112.0 458885.0 5438355.0 112.0 458885.0 5438350.0
112.0 458875.0 5438350.0 112.0 </gml:posList>
</gml:LinearRing>
</gml:exterior>
</gml:Polygon>
</gml:surfaceMember>
</gml:CompositeSurface>
</gml:exterior>
</gml:Solid>
</bldg:lod1Solid>
</bldg:Building>
</cityObjectMember>
<cityObjectMember>...</cityObjectMember>
<cityObjectMember>...</cityObjectMember>
<cityObjectMember>...</cityObjectMember>
</CityModel>