@@ -81,7 +81,8 @@ def accept( self ):
self .tr ( "Please specify valid UID field" ) )
else :
self .outShape .clear ()
self .geometry ( self .inShape .currentText (), self .lineEdit .value (), self .cmbField .currentText () )
self .geometry ( self .inShape .currentText (), self .lineEdit .value (),
self .cmbField .currentText () )
def outFile ( self ):
self .outShape .clear ()
@@ -97,6 +98,9 @@ def manageGui( self ):
self .lblCalcType .setVisible ( False )
self .cmbCalcType .setVisible ( False )
self .chkUseSelection .setVisible ( False )
self .chkByFeatures .setVisible ( False )
self .chkWriteShapefile .setVisible ( False )
if self .myFunction == 1 : # Singleparts to multipart
self .setWindowTitle ( self .tr ( "Singleparts to multipart" ) )
@@ -167,6 +171,8 @@ def manageGui( self ):
self .label_3 .setText ( self .tr ( "Input layer" ) )
self .label .setVisible ( False )
self .lineEdit .setVisible ( False )
self .chkByFeatures .setVisible ( True )
self .chkUseSelection .setVisible ( True )
self .lblOutputShapefile .setText ( self .tr ( "Output polygon shapefile" ) )
self .resize ( 381 , 100 )
self .populateLayers ()
@@ -229,7 +235,8 @@ def geometry( self, myLayer, myParam, myField ):
self .buttonOk .setEnabled ( False )
self .testThread = geometryThread ( self .iface .mainWindow (), self , self .myFunction ,
vlayer , myParam , myField , self .shapefileName , self .encoding ,
self .cmbCalcType .currentIndex (), self .chkWriteShapefile .isChecked () )
self .cmbCalcType .currentIndex (), self .chkWriteShapefile .isChecked (),
self .chkByFeatures .isChecked (), self .chkUseSelection .isChecked () )
QObject .connect ( self .testThread , SIGNAL ( "runFinished( PyQt_PyObject )" ), self .runFinishedFromThread )
QObject .connect ( self .testThread , SIGNAL ( "runStatus( PyQt_PyObject )" ), self .runStatusFromThread )
QObject .connect ( self .testThread , SIGNAL ( "runRange( PyQt_PyObject )" ), self .runRangeFromThread )
@@ -288,7 +295,8 @@ def runRangeFromThread( self, range_vals ):
class geometryThread ( QThread ):
def __init__ ( self , parentThread , parentObject , function , vlayer , myParam ,
myField , myName , myEncoding , myCalcType , myNewShape ):
myField , myName , myEncoding , myCalcType , myNewShape , myByFeatures ,
myUseSelection ):
QThread .__init__ ( self , parentThread )
self .parent = parentObject
self .running = False
@@ -300,6 +308,8 @@ def __init__( self, parentThread, parentObject, function, vlayer, myParam,
self .myEncoding = myEncoding
self .myCalcType = myCalcType
self .writeShape = myNewShape
self .byFeatures = myByFeatures
self .useSelection = myUseSelection
def run ( self ):
self .running = True
@@ -319,7 +329,10 @@ def run( self ):
elif self .myFunction == 8 : # Delaunay triangulation
success = self .delaunay_triangulation ()
elif self .myFunction == 9 : # Polygon from layer extent
success = self .layer_extent ()
if self .byFeatures :
success = self .feature_extent ()
else :
success = self .layer_extent ()
elif self .myFunction == 10 : # Voronoi Polygons
success = self .voronoi_polygons ()
elif self .myFunction == 11 : # Lines to polygons
@@ -860,6 +873,105 @@ def layer_extent( self ):
return True
def feature_extent ( self , ):
vprovider = self .vlayer .dataProvider ()
vprovider .select ( [] )
self .emit ( SIGNAL ( "runStatus( PyQt_PyObject )" ), 0 )
fields = { 0 : QgsField ( "MINX" , QVariant .Double ),
1 : QgsField ( "MINY" , QVariant .Double ),
2 : QgsField ( "MAXX" , QVariant .Double ),
3 : QgsField ( "MAXY" , QVariant .Double ),
4 : QgsField ( "CNTX" , QVariant .Double ),
5 : QgsField ( "CNTY" , QVariant .Double ),
6 : QgsField ( "AREA" , QVariant .Double ),
7 : QgsField ( "PERIM" , QVariant .Double ),
8 : QgsField ( "HEIGHT" , QVariant .Double ),
9 : QgsField ( "WIDTH" , QVariant .Double ) }
writer = QgsVectorFileWriter ( self .myName , self .myEncoding , fields ,
QGis .WKBPolygon , self .vlayer .crs () )
inFeat = QgsFeature ()
outFeat = QgsFeature ()
nElement = 0
if self .useSelection :
self .emit ( SIGNAL ( "runRange( PyQt_PyObject )" ), (0 , self .vlayer .selectedFeatureCount () ) )
for inFeat in self .vlayer .selectedFeatures ():
self .emit ( SIGNAL ( "runStatus( PyQt_PyObject )" ), nElement )
nElement += 1
rect = inFeat .geometry ().boundingBox ()
minx = rect .xMinimum ()
miny = rect .yMinimum ()
maxx = rect .xMaximum ()
maxy = rect .yMaximum ()
height = rect .height ()
width = rect .width ()
cntx = minx + ( width / 2.0 )
cnty = miny + ( height / 2.0 )
area = width * height
perim = ( 2 * width ) + ( 2 * height )
rect = [ QgsPoint ( minx , miny ),
QgsPoint ( minx , maxy ),
QgsPoint ( maxx , maxy ),
QgsPoint ( maxx , miny ),
QgsPoint ( minx , miny ) ]
geometry = QgsGeometry ().fromPolygon ( [ rect ] )
outFeat .setGeometry ( geometry )
outFeat .setAttributeMap ( { 0 : QVariant ( minx ),
1 : QVariant ( miny ),
2 : QVariant ( maxx ),
3 : QVariant ( maxy ),
4 : QVariant ( cntx ),
5 : QVariant ( cnty ),
6 : QVariant ( area ),
7 : QVariant ( perim ),
8 : QVariant ( height ),
9 : QVariant ( width ) } )
writer .addFeature ( outFeat )
else :
self .emit ( SIGNAL ( "runRange( PyQt_PyObject )" ), ( 0 , vprovider .featureCount () ) )
while vprovider .nextFeature ( inFeat ):
self .emit ( SIGNAL ( "runStatus( PyQt_PyObject )" ), nElement )
nElement += 1
rect = inFeat .geometry ().boundingBox ()
minx = rect .xMinimum ()
miny = rect .yMinimum ()
maxx = rect .xMaximum ()
maxy = rect .yMaximum ()
height = rect .height ()
width = rect .width ()
cntx = minx + ( width / 2.0 )
cnty = miny + ( height / 2.0 )
area = width * height
perim = ( 2 * width ) + ( 2 * height )
rect = [ QgsPoint ( minx , miny ),
QgsPoint ( minx , maxy ),
QgsPoint ( maxx , maxy ),
QgsPoint ( maxx , miny ),
QgsPoint ( minx , miny ) ]
geometry = QgsGeometry ().fromPolygon ( [ rect ] )
outFeat .setGeometry ( geometry )
outFeat .setAttributeMap ( { 0 : QVariant ( minx ),
1 : QVariant ( miny ),
2 : QVariant ( maxx ),
3 : QVariant ( maxy ),
4 : QVariant ( cntx ),
5 : QVariant ( cnty ),
6 : QVariant ( area ),
7 : QVariant ( perim ),
8 : QVariant ( height ),
9 : QVariant ( width ) } )
writer .addFeature ( outFeat )
del writer
return True
def simpleMeasure ( self , inGeom , calcType , ellips , crs ):
if inGeom .wkbType () in ( QGis .WKBPoint , QGis .WKBPoint25D ):
pt = QgsPoint ()
