Hello, <br><br>I have this error when I run my plugin my code is below. What may be the problem? <br><br>Thanks,<br>Lutfi<br><br>P.S. : I tried something for this problem the line begin # mark are the things that I tried.<br>
<br># Import the PyQt and QGIS libraries<br>from PyQt4 import QtCore, QtGui<br><br>from PyQt4.QtCore import * <br>from PyQt4.QtGui import *<br>from qgis.core import *<br>from os import *<br>from qgis.gui import *<br>import sys<br>
import pdb<br># Initialize Qt resources from file resources.py<br>import resources<br># Import the code for the dialog<br>from ReadDataDialog import ReadDataDialog<br><br>class ReadData: <br><br> def __init__(self, iface):<br>
# Save reference to the QGIS interface<br> self.iface = iface<br><br> def initGui(self): <br> # Create action that will start plugin configuration<br> self.action = QAction(QIcon(":/plugins/readdata/icon.png"), \<br>
"Read shp for calculations", self.iface.mainWindow())<br> # connect the action to the run method<br> QObject.connect(self.action, SIGNAL("triggered()"), self.run) <br><br> # Add toolbar button and menu item<br>
self.iface.addToolBarIcon(self.action)<br> self.iface.addPluginToMenu("&Read shp for calculations", self.action)<br><br> def unload(self):<br> # Remove the plugin menu item and icon<br> self.iface.removePluginMenu("&Read shp for calculations",self.action)<br>
self.iface.removeToolBarIcon(self.action)<br><br> # run method that performs all the real work<br> def run(self): <br> <br># fileName = QFileDialog.getOpenFileName(None,QString.fromLocal8Bit("Select a file:"),"", "*.shp *.gml")<br>
<br># if fileName.isNull():<br><br># QMessageBox.information(None, "Cancel", "File selection canceled")<br> <br> <br><br><br># else:<br><br># print fileName<br> <br><br>
vlayer = QgsVectorLayer("C://Users//lutfi//Documents//tezzzz//data//roads.shp", "hebe", "ogr")<br> print vlayer.source()<br> print vlayer.featureCount()<br> QgsMapLayerRegistry.instance().addMapLayer(vlayer)<br>
QMessageBox.information(self.iface.mainWindow(), "info", "file: "+str(vlayer.source())+" is added.")<br> <br><br> <br> <br> <br> if not vlayer.isValid():<br> print "Couldn't open the layer"<br>
pdb.set_trace()<br><br> else:<br> <br># QMessageBox.information(None, "Cancel", "File selection canceled")<br> <br> provider = vlayer.dataProvider()<br> feat = QgsFeature()<br>
allAttrs = provider.attributeIndexes()<br> provider.select(allAttrs)<br> <br> while provider.nextFeature(feat):<br> geom = feat.geometry()<br> import sys<br> import os <br># win32api.SetFileAttributes('C://Users//lutfi//Documents//tezzzz//log.txt', win32con.FILE_ATTRIBUTE_NORMAL)<br>
sys.stdout = open('C://Users//lutfi//Documents//tezzzz//log.txt', 777 )<br> print geom<br># QMessageBox.information(None, "Cancel", "File selection canceled")<br> print "Feature ID %d: " % <a href="http://feat.id">feat.id</a>()<br>
if geom.type() == QGis.Point:<br> x = geom.asPoint()<br> print "Point: " + str(x)<br><br> elif geom.type() == QGis.Line:<br> x = geom.asPolyline()<br> print "Line: %d points" % len(x)<br>
<br> elif geom.type() == QGis.Polygon:<br> x = geom.asPolygon()<br> numPts = 0<br> for ring in x:<br> numPts += len(ring)<br> print "Polygon: %d rings with %d points" % (len(x), numPts)<br>
else:<br> print "Unknown"<br> <br> attrs = feat.attributeMap()<br><br> for (k,attr) in attrs.iteritems():<br> print "%d: %s" % (k, attr.toString())<br> <br>
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