1

I try to move points (they come as WGS84, but I'm not sure if it works with unprojected CRS) by a specified distance and connect original and new point with a line segment with the below script, but get an error (EDIT: is fixed now..):

#ERROR: 'module' object has no attribute 'getobject'  --> fixed syntax error!


from PyQt4.QtCore import *
from qgis.core import *
from processing.core.VectorWriter import VectorWriter

#====================================
##[User scripts]=group
##input=vector
##output=output vector
##x_add=number 100
##y_add=number 100
#====================================

inputLayer = processing.getObject(input)   # formerly getobject()
features = processing.features(inputLayer) # formerly getFeatures()

provider = inputLayer.dataProvider()
writer = VectorWriter(output, None, provider.fields(), WKBLineString , inputLayer.crs())

for ft in features:
    line_start = ft.geometry().asPoint()
    line_end = QgsPoint(line_start.x()+x_add, line_start.y()+y_add)
    outFeat = QgsFeature()
    outFeat.setGeometry(QgsGeometry.fromPolyline([line_start, line_end]))
    writer.addFeature(outFeat)

del writer

Furthermore I'd like to be able to move points by specifying the distance in map units (m), I'm not sure if this is what's actually happening here.

2

Method getobject() cannot be found in module processing because the method is named getObject() (mention the big O). Try getFeatures() in the following line, it is the same problem here.

  • Was there a syntax-change? I took this snippet from another script where it was working.. Anyways, I changed both syntax errors, but now I get 'module' object has no attribute 'getFeatures' – Kay Apr 28 '15 at 14:34
  • ..it turns out that there was a change! See gis.stackexchange.com/questions/98066/….. – Kay May 20 '15 at 15:35
  • ..I fixed the syntax error. However the original questions remains. How to get the segments in map units? – Kay May 20 '15 at 15:36
  • Problem, solved - it turned out that of course it is map units that are used here, and that it was only my unprojected CRS that led to false distances.. – Kay May 20 '15 at 20:20

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