Error when loading a shapefile in a standalone PYQGIS script The 2019 Stack Overflow Developer...
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Error when loading a shapefile in a standalone PYQGIS script
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I have a standalone pyqgis script that automatically visualizes 4 parameters (precip rate, temperature, pressure and wind). when I run just the precip rate and pressure part of the script there are no errors same as when I run temperature and wind together.
But when I run them all the error below appears. I have no idea what is that. The directory of my shapefile is correct. (The shapefile is a map of the philippines and I have all the files needed to load the file (.shp, .shx and .dbf) )
ERROR 4: Unable to open /home/francis/QGIS/shpfile/sample/Country.shx or /home/francis/QGIS/shpfile/sample/Country.SHX.
ERROR 4: VSIFOpenL(/home/francis/QGIS/epelwrf/temp/rpn-20180913/rpntemp-postwrf_d01_20180913_0300_f04600.asc) failed unexpectedly.
Here is the code snippet that I use to load the .shp file
#Loading of Shp file (vector) starts here
crsType = QSettings().value('/Projections/defaultBehaviour')
QSettings().setValue('/Projections/defaultBehaviour', ' ')
target_crs = QgsCoordinateReferenceSystem()
target_crs.createFromId(4326, QgsCoordinateReferenceSystem.EpsgCrsId)
vLayer = QgsVectorLayer("/home/francis/QGIS/shpfile/sample/Country.shp", "Map", "ogr")
print vLayer.isValid()
vLayer.setCrs(target_crs)
#print vLayer.crs().authid()
vLayer.setLayerTransparency(50)
QgsMapLayerRegistry.instance().addMapLayers([vLayer])
if hasattr(vLayer, "setCacheImage"):
vLayer.setCacheImage(None)
vLayer.triggerRepaint()
QSettings().setValue('/Projections/defaultBehaviour', crsType)
This is the sample output of my script (Precip Rate)
while the temperature and wind produces blank images.
I am using qgis 2.18 and python 2.7. thank you
python pyqgis shapefile vector-layer
asked 17 mins ago
Francis KaneFrancis Kane
142
add a comment |
I have a standalone pyqgis script that automatically visualizes 4 parameters (precip rate, temperature, pressure and wind). when I run just the precip rate and pressure part of the script there are no errors same as when I run temperature and wind together.
But when I run them all the error below appears. I have no idea what is that. The directory of my shapefile is correct. (The shapefile is a map of the philippines and I have all the files needed to load the file (.shp, .shx and .dbf) )
ERROR 4: Unable to open /home/francis/QGIS/shpfile/sample/Country.shx or /home/francis/QGIS/shpfile/sample/Country.SHX.
ERROR 4: VSIFOpenL(/home/francis/QGIS/epelwrf/temp/rpn-20180913/rpntemp-postwrf_d01_20180913_0300_f04600.asc) failed unexpectedly.
Here is the code snippet that I use to load the .shp file
#Loading of Shp file (vector) starts here
crsType = QSettings().value('/Projections/defaultBehaviour')
QSettings().setValue('/Projections/defaultBehaviour', ' ')
target_crs = QgsCoordinateReferenceSystem()
target_crs.createFromId(4326, QgsCoordinateReferenceSystem.EpsgCrsId)
vLayer = QgsVectorLayer("/home/francis/QGIS/shpfile/sample/Country.shp", "Map", "ogr")
print vLayer.isValid()
vLayer.setCrs(target_crs)
#print vLayer.crs().authid()
vLayer.setLayerTransparency(50)
QgsMapLayerRegistry.instance().addMapLayers([vLayer])
if hasattr(vLayer, "setCacheImage"):
vLayer.setCacheImage(None)
vLayer.triggerRepaint()
QSettings().setValue('/Projections/defaultBehaviour', crsType)
This is the sample output of my script (Precip Rate)
while the temperature and wind produces blank images.
I am using qgis 2.18 and python 2.7. thank you
python pyqgis shapefile vector-layer
asked 17 mins ago
Francis KaneFrancis Kane
142
add a comment |
I have a standalone pyqgis script that automatically visualizes 4 parameters (precip rate, temperature, pressure and wind). when I run just the precip rate and pressure part of the script there are no errors same as when I run temperature and wind together.
But when I run them all the error below appears. I have no idea what is that. The directory of my shapefile is correct. (The shapefile is a map of the philippines and I have all the files needed to load the file (.shp, .shx and .dbf) )
ERROR 4: Unable to open /home/francis/QGIS/shpfile/sample/Country.shx or /home/francis/QGIS/shpfile/sample/Country.SHX.
ERROR 4: VSIFOpenL(/home/francis/QGIS/epelwrf/temp/rpn-20180913/rpntemp-postwrf_d01_20180913_0300_f04600.asc) failed unexpectedly.
Here is the code snippet that I use to load the .shp file
#Loading of Shp file (vector) starts here
crsType = QSettings().value('/Projections/defaultBehaviour')
QSettings().setValue('/Projections/defaultBehaviour', ' ')
target_crs = QgsCoordinateReferenceSystem()
target_crs.createFromId(4326, QgsCoordinateReferenceSystem.EpsgCrsId)
vLayer = QgsVectorLayer("/home/francis/QGIS/shpfile/sample/Country.shp", "Map", "ogr")
print vLayer.isValid()
vLayer.setCrs(target_crs)
#print vLayer.crs().authid()
vLayer.setLayerTransparency(50)
QgsMapLayerRegistry.instance().addMapLayers([vLayer])
if hasattr(vLayer, "setCacheImage"):
vLayer.setCacheImage(None)
vLayer.triggerRepaint()
QSettings().setValue('/Projections/defaultBehaviour', crsType)
This is the sample output of my script (Precip Rate)
while the temperature and wind produces blank images.
I am using qgis 2.18 and python 2.7. thank you
python pyqgis shapefile vector-layer
asked 17 mins ago
Francis KaneFrancis Kane
142
I have a standalone pyqgis script that automatically visualizes 4 parameters (precip rate, temperature, pressure and wind). when I run just the precip rate and pressure part of the script there are no errors same as when I run temperature and wind together.
But when I run them all the error below appears. I have no idea what is that. The directory of my shapefile is correct. (The shapefile is a map of the philippines and I have all the files needed to load the file (.shp, .shx and .dbf) )
ERROR 4: Unable to open /home/francis/QGIS/shpfile/sample/Country.shx or /home/francis/QGIS/shpfile/sample/Country.SHX.
ERROR 4: VSIFOpenL(/home/francis/QGIS/epelwrf/temp/rpn-20180913/rpntemp-postwrf_d01_20180913_0300_f04600.asc) failed unexpectedly.
Here is the code snippet that I use to load the .shp file
#Loading of Shp file (vector) starts here
crsType = QSettings().value('/Projections/defaultBehaviour')
QSettings().setValue('/Projections/defaultBehaviour', ' ')
target_crs = QgsCoordinateReferenceSystem()
target_crs.createFromId(4326, QgsCoordinateReferenceSystem.EpsgCrsId)
vLayer = QgsVectorLayer("/home/francis/QGIS/shpfile/sample/Country.shp", "Map", "ogr")
print vLayer.isValid()
vLayer.setCrs(target_crs)
#print vLayer.crs().authid()
vLayer.setLayerTransparency(50)
QgsMapLayerRegistry.instance().addMapLayers([vLayer])
if hasattr(vLayer, "setCacheImage"):
vLayer.setCacheImage(None)
vLayer.triggerRepaint()
QSettings().setValue('/Projections/defaultBehaviour', crsType)
This is the sample output of my script (Precip Rate)
while the temperature and wind produces blank images.
I am using qgis 2.18 and python 2.7. thank you
python pyqgis shapefile vector-layer
python pyqgis shapefile vector-layer
asked 17 mins ago
Francis KaneFrancis Kane
142
asked 17 mins ago
Francis KaneFrancis Kane
142
edited 10 mins ago
Francis Kane
asked 17 mins ago
Francis KaneFrancis Kane
142
asked 17 mins ago
Francis KaneFrancis Kane
142
asked 17 mins ago
Francis KaneFrancis Kane
142
142
add a comment |
add a comment |
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