Hi,
Currently I'm working on an addin which should import data from a .gpx-file. To achieve this I want to use JDOM with XPath, but when I get to parse the data, nothing ever happens. My addin still runs and eclipse doesn't show any kind of errors.
The relevant line of code is:
Is there anybody, who has faced the same kind of problem?
Regards,
Dominik
Currently I'm working on an addin which should import data from a .gpx-file. To achieve this I want to use JDOM with XPath, but when I get to parse the data, nothing ever happens. My addin still runs and eclipse doesn't show any kind of errors.
The relevant line of code is:
Element testing = (Element) XPath.selectSingleNode(gpxDoc, "/gpx/trk/@*");
Is there anybody, who has faced the same kind of problem?
Regards,
Dominik
So you have to use JDOM only!
The resulting code is rather intricate:
private void LoadGPXTracks(File importFile) throws JDOMException, IOException, ParseException { //XML-Datei einladen Document gpxDoc = new SAXBuilder().build(importFile); Namespace gpx_ns = Namespace.getNamespace("http://www.topografix.com/GPX/1/1"); Element gpx_root = gpxDoc.getRootElement(); int j = 0; for (Iterator it = gpx_root.getChildren("trk", gpx_ns).iterator(); it.hasNext();) { Element trk = (Element) it.next(); if("trk".equals(trk.getName())) { IFeature feature = _featureClassTracks.createFeature(); int contractorFieldIndex = _featureClassTracks.findField("objname"); if (contractorFieldIndex >= 0) feature.setValue(contractorFieldIndex, trk.getChildText("name", gpx_ns).toString()); contractorFieldIndex = _featureClassTracks.findField("kern_id"); if (contractorFieldIndex >= 0) feature.setValue(contractorFieldIndex, j++); IGeometryBridge2 pGeoBrg = new GeometryEnvironment(); IPointCollection4 pPointColl = new Polyline(); //List<?> trackSegsInfo = XPath.selectNodes(gpxDoc, "/gpx/trk/trkseg/"); int i = 0; Element trk_seg = null; for (Iterator it_seg = trk.getChildren("trkseg", gpx_ns).iterator(); it_seg.hasNext();) { trk_seg = (Element) it_seg.next(); for (Iterator trk_pt_count = trk_seg.getChildren("trkpt", gpx_ns).iterator(); trk_pt_count.hasNext();) { Element trk_pt_count_elem = (Element) trk_pt_count.next(); i++; } } Point point_help = new Point(); IPoint aPointBuffer = point_help; IPoint[] aPointBufferArray = new Point[i]; i = 0; for (Iterator it_pt = trk_seg.getChildren("trkpt", gpx_ns).iterator(); it_pt.hasNext();) { Element trk_pt = (Element) it_pt.next(); String longitude = null; String latitude = null; Iterator it_trk_pt_attr = trk_pt.getAttributes().iterator(); it_trk_pt_attr.hasNext(); Attribute trk_pt_attr = (Attribute) it_trk_pt_attr.next(); latitude = trk_pt_attr.getValue().toString(); trk_pt_attr = (Attribute) it_trk_pt_attr.next(); longitude = trk_pt_attr.getValue().toString(); String elevation = trk_pt.getChildText("ele", gpx_ns).toString(); String time = trk_pt.getChildText("time", gpx_ns).toString(); Point point = CreatePoint(longitude, latitude, elevation != null ? elevation : "0"); aPointBuffer = point; aPointBufferArray[i] = aPointBuffer; IFeature trkPntFeature = _featureClassTrackPoints.createFeature(); trkPntFeature.setShapeByRef(point); if (time != null) { DateFormat format = new SimpleDateFormat("yyyy'-'MM'-'dd'T'hh:mm:ss"); Date d = format.parse(time); trkPntFeature.setValue(trkPntFeature.getFields().findField("time"), d); } trkPntFeature.store(); i++; } pGeoBrg.setPoints(pPointColl, aPointBufferArray); feature.setShapeByRef((IPolyline) pPointColl); feature.store(); } it.next(); } }Regards,
Dominik