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Fixes error when manually specifying output coordinates 
Modifies ui to increase control on output grid extents


git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@10035 c8812cc2-4d05-0410-92ff-de0c093fc19c
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cfarmer committed Jan 27, 2009
1 parent a2fd1a5 commit 7abc55a
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Showing 3 changed files with 202 additions and 267 deletions.
81 python/plugins/ftools/tools/doVectorGrid.py
View file
@@ -42,52 +42,67 @@ def __init__(self, iface):
self.setupUi(self)
QObject.connect(self.toolOut, SIGNAL("clicked()"), self.outFile)
QObject.connect(self.spnX, SIGNAL("valueChanged(double)"), self.offset)
#QObject.connect(self.inShape, SIGNAL("currentIndexChanged(QString)"), self.updateInput)
QObject.connect(self.btnUpdate, SIGNAL("clicked()"), self.updateInput)
self.setWindowTitle("Vector grid")
mapCanvas = self.iface.mapCanvas()
for i in range(mapCanvas.layerCount()):
layer = mapCanvas.layer(i)
self.inShape.addItem(layer.name())
self.xMin.setValidator(QDoubleValidator(self.xMin))
self.xMax.setValidator(QDoubleValidator(self.xMax))
self.yMin.setValidator(QDoubleValidator(self.yMin))
self.yMax.setValidator(QDoubleValidator(self.yMax))
layers = ftools_utils.getLayerNames(
[ QGis.Point, QGis.Line, QGis.Polygon ] )
for layer in layers:
self.inShape.addItem( layer )

def offset(self, value):
if self.chkLock.isChecked():
self.spnY.setValue(value)

def updateInput( self ):
mLayerName = self.inShape.currentText()
if not mLayerName == "":
mLayer = self.getMapLayerByName( unicode( mLayerName ) )
self.inLayer = mLayer
boundBox = mLayer.extent()
self.updateExtents( boundBox )

def updateExtents( self, boundBox ):
self.xMin.setText( unicode( boundBox.xMinimum() ) )
self.yMin.setText( unicode( boundBox.yMinimum() ) )
self.xMax.setText( unicode( boundBox.xMaximum() ) )
self.yMax.setText( unicode( boundBox.yMaximum() ) )

def accept(self):
if not self.rdoCoordinates.isChecked() and self.inShape.currentText() == "":
QMessageBox.information(self, "Generate Vector Grid", "Please specify input layer")
elif self.rdoCoordinates.isChecked() and (self.xMin.text() == "" or self.xMax.text() == "" or self.yMin.text() == "" or self.yMax.text() == ""):
QMessageBox.information(self, "Generate Vector Grid", "Please properly specify extent coordinates")
if self.xMin.text() == "" or self.xMax.text() == "" or self.yMin.text() == "" or self.yMax.text() == "":
QMessageBox.information(self, "Vector grid", "Please specify valid extent coordinates")
elif self.outShape.text() == "":
QMessageBox.information(self, "Generate Vector Grid", "Please specify output shapefile")
QMessageBox.information(self, "Vector grid", "Please specify output shapefile")
else:
inName = self.inShape.currentText()
outPath = self.outShape.text()
self.outShape.clear()
if outPath.contains("\\"):
outName = outPath.right((outPath.length() - outPath.lastIndexOf("\\")) - 1)
else:
outName = outPath.right((outPath.length() - outPath.lastIndexOf("/")) - 1)
if outName.endsWith(".shp"):
outName = outName.left(outName.length() - 4)
if self.rdoBoundary.isChecked():
mLayer = self.getMapLayerByName(unicode(inName))
boundBox = mLayer.extent()
else:
boundBox = QgsRect(float(self.xMin.text()), float(self.yMin.text()), float(self.xMax.text()), float(self.yMax.text()))
try:
boundBox = QgsRectangle(
float( self.xMin.text() ),
float( self.yMin.text() ),
float( self.xMax.text() ),
float( self.yMax.text() ) )
except:
QMessageBox.information(self, "Vector grid", "Invalid extent coordinates entered")
xSpace = self.spnX.value()
ySpace = self.spnY.value()
if self.rdoPolygons.isChecked(): polygon = True
else: polygon = False
self.compute(boundBox, outPath, xSpace, ySpace, polygon, self.progressBar)
addToTOC = QMessageBox.question(self, "Generate Vector Grid", "Created output Shapefile:\n" + outPath
+ "\nNote: Layer has no associated coordinate system, please use the Projection Management Tool to specify spatial reference system."
+ "\n\nWould you like to add the new layer to the TOC?", QMessageBox.Yes, QMessageBox.No, QMessageBox.NoButton)
self.outShape.clear()
self.compute( boundBox, xSpace, ySpace, polygon )
addToTOC = QMessageBox.question(self,
"Generate Vector Grid", "Created output Shapefile:\n" + outPath
+ "\nNote: Layer has no associated coordinate system, please use "
+ "the Projection Management Tool to specify spatial reference system."
+ "\n\nWould you like to add the new layer to the TOC?",
QMessageBox.Yes, QMessageBox.No, QMessageBox.NoButton)
if addToTOC == QMessageBox.Yes:
self.vlayer = QgsVectorLayer(outPath, unicode(outName), "ogr")
QgsMapLayerRegistry.instance().addMapLayer(self.vlayer)
self.progressBar.setValue(0)
ftools_utils.addShapeToCanvas( self.shapefileName )
self.progressBar.setValue( 0 )

def compute(self, bound, outPath, xOffset, yOffset, polygon, progressBar):
def compute( self, bound, xOffset, yOffset, polygon ):
if polygon:
fields = {0:QgsField("ID", QVariant.Int), 1:QgsField("XMIN", QVariant.Double), 2:QgsField("XMAX", QVariant.Double),
3:QgsField("YMIN", QVariant.Double), 4:QgsField("YMAX", QVariant.Double)}
@@ -108,7 +123,7 @@ def compute(self, bound, outPath, xOffset, yOffset, polygon, progressBar):
outFeat = QgsFeature()
outGeom = QgsGeometry()
idVar = 0
progressBar.setRange(0,0)
self.progressBar.setRange( 0, 0 )
if not polygon:
y = bound.yMaximum()
while y >= bound.yMinimum():
@@ -153,7 +168,7 @@ def compute(self, bound, outPath, xOffset, yOffset, polygon, progressBar):
idVar = idVar + 1
x = x + xOffset
y = y - yOffset
progressBar.setRange(0,100)
self.progressBar.setRange( 0, 100 )
del writer

def outFile(self):
82 python/plugins/ftools/tools/frmVectorGrid.py
View file
@@ -2,7 +2,7 @@

# Form implementation generated from reading ui file 'frmVectorGrid.ui'
#
# Created: Mon Nov 10 00:06:05 2008
# Created: Tue Jan 27 23:10:42 2009
# by: PyQt4 UI code generator 4.3.3
#
# WARNING! All changes made in this file will be lost!
@@ -13,7 +13,7 @@ class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.setWindowModality(QtCore.Qt.NonModal)
Dialog.resize(QtCore.QSize(QtCore.QRect(0,0,374,483).size()).expandedTo(Dialog.minimumSizeHint()))
Dialog.resize(QtCore.QSize(QtCore.QRect(0,0,369,459).size()).expandedTo(Dialog.minimumSizeHint()))
Dialog.setSizeGripEnabled(True)

self.gridlayout = QtGui.QGridLayout(Dialog)
@@ -25,70 +25,76 @@ def setupUi(self, Dialog):
self.gridlayout1 = QtGui.QGridLayout(self.groupBox)
self.gridlayout1.setObjectName("gridlayout1")

self.rdoBoundary = QtGui.QRadioButton(self.groupBox)
self.rdoBoundary.setChecked(True)
self.rdoBoundary.setObjectName("rdoBoundary")
self.gridlayout1.addWidget(self.rdoBoundary,0,0,1,2)
spacerItem = QtGui.QSpacerItem(80,20,QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Minimum)
self.gridlayout1.addItem(spacerItem,1,0,1,1)

self.inShape = QtGui.QComboBox(self.groupBox)
self.inShape.setObjectName("inShape")
self.gridlayout1.addWidget(self.inShape,1,0,1,2)
self.btnUpdate = QtGui.QToolButton(self.groupBox)
self.btnUpdate.setMinimumSize(QtCore.QSize(0,30))
self.btnUpdate.setObjectName("btnUpdate")
self.gridlayout1.addWidget(self.btnUpdate,1,1,1,2)

self.rdoCoordinates = QtGui.QRadioButton(self.groupBox)
self.rdoCoordinates.setObjectName("rdoCoordinates")
self.gridlayout1.addWidget(self.rdoCoordinates,2,0,1,2)
spacerItem1 = QtGui.QSpacerItem(79,20,QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Minimum)
self.gridlayout1.addItem(spacerItem1,1,3,1,1)

self.hboxlayout = QtGui.QHBoxLayout()
self.hboxlayout.setObjectName("hboxlayout")

self.label = QtGui.QLabel(self.groupBox)
self.label.setEnabled(False)
self.label.setEnabled(True)
self.label.setObjectName("label")
self.hboxlayout.addWidget(self.label)

self.xMin = QtGui.QLineEdit(self.groupBox)
self.xMin.setEnabled(True)
self.xMin.setObjectName("xMin")
self.hboxlayout.addWidget(self.xMin)
self.gridlayout1.addLayout(self.hboxlayout,3,0,1,1)
self.gridlayout1.addLayout(self.hboxlayout,2,0,1,2)

self.hboxlayout1 = QtGui.QHBoxLayout()
self.hboxlayout1.setObjectName("hboxlayout1")

self.label_4 = QtGui.QLabel(self.groupBox)
self.label_4.setEnabled(False)
self.label_4.setEnabled(True)
self.label_4.setObjectName("label_4")
self.hboxlayout1.addWidget(self.label_4)

self.yMin = QtGui.QLineEdit(self.groupBox)
self.yMin.setEnabled(True)
self.yMin.setObjectName("yMin")
self.hboxlayout1.addWidget(self.yMin)
self.gridlayout1.addLayout(self.hboxlayout1,3,1,1,1)
self.gridlayout1.addLayout(self.hboxlayout1,2,2,1,2)

self.hboxlayout2 = QtGui.QHBoxLayout()
self.hboxlayout2.setObjectName("hboxlayout2")

self.label_3 = QtGui.QLabel(self.groupBox)
self.label_3.setEnabled(False)
self.label_3.setEnabled(True)
self.label_3.setObjectName("label_3")
self.hboxlayout2.addWidget(self.label_3)

self.xMax = QtGui.QLineEdit(self.groupBox)
self.xMax.setEnabled(True)
self.xMax.setObjectName("xMax")
self.hboxlayout2.addWidget(self.xMax)
self.gridlayout1.addLayout(self.hboxlayout2,4,0,1,1)
self.gridlayout1.addLayout(self.hboxlayout2,3,0,1,2)

self.hboxlayout3 = QtGui.QHBoxLayout()
self.hboxlayout3.setObjectName("hboxlayout3")

self.label_5 = QtGui.QLabel(self.groupBox)
self.label_5.setEnabled(False)
self.label_5.setEnabled(True)
self.label_5.setObjectName("label_5")
self.hboxlayout3.addWidget(self.label_5)

self.yMax = QtGui.QLineEdit(self.groupBox)
self.yMax.setEnabled(True)
self.yMax.setObjectName("yMax")
self.hboxlayout3.addWidget(self.yMax)
self.gridlayout1.addLayout(self.hboxlayout3,4,1,1,1)
self.gridlayout1.addLayout(self.hboxlayout3,3,2,1,2)

self.inShape = QtGui.QComboBox(self.groupBox)
self.inShape.setObjectName("inShape")
self.gridlayout1.addWidget(self.inShape,0,0,1,4)
self.gridlayout.addWidget(self.groupBox,0,0,1,2)

self.gridBox = QtGui.QGroupBox(Dialog)
@@ -97,8 +103,8 @@ def setupUi(self, Dialog):
self.gridlayout2 = QtGui.QGridLayout(self.gridBox)
self.gridlayout2.setObjectName("gridlayout2")

spacerItem = QtGui.QSpacerItem(40,20,QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Minimum)
self.gridlayout2.addItem(spacerItem,0,0,1,1)
spacerItem2 = QtGui.QSpacerItem(40,20,QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Minimum)
self.gridlayout2.addItem(spacerItem2,0,0,1,1)

self.label_7 = QtGui.QLabel(self.gridBox)
self.label_7.setObjectName("label_7")
@@ -107,7 +113,7 @@ def setupUi(self, Dialog):
self.spnX = QtGui.QDoubleSpinBox(self.gridBox)
self.spnX.setDecimals(4)
self.spnX.setMinimum(0.0001)
self.spnX.setMaximum(9999.0)
self.spnX.setMaximum(999999999.0)
self.spnX.setSingleStep(0.0001)
self.spnX.setObjectName("spnX")
self.gridlayout2.addWidget(self.spnX,0,2,1,1)
@@ -117,11 +123,11 @@ def setupUi(self, Dialog):
self.chkLock.setObjectName("chkLock")
self.gridlayout2.addWidget(self.chkLock,0,3,2,1)

spacerItem1 = QtGui.QSpacerItem(40,20,QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Minimum)
self.gridlayout2.addItem(spacerItem1,0,4,1,1)
spacerItem3 = QtGui.QSpacerItem(40,20,QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Minimum)
self.gridlayout2.addItem(spacerItem3,0,4,1,1)

spacerItem2 = QtGui.QSpacerItem(40,20,QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Minimum)
self.gridlayout2.addItem(spacerItem2,1,0,1,1)
spacerItem4 = QtGui.QSpacerItem(40,20,QtGui.QSizePolicy.Expanding,QtGui.QSizePolicy.Minimum)
self.gridlayout2.addItem(spacerItem4,1,0,1,1)

self.label_8 = QtGui.QLabel(self.gridBox)
self.label_8.setEnabled(False)
@@ -132,7 +138,7 @@ def setupUi(self, Dialog):
self.spnY.setEnabled(False)
self.spnY.setDecimals(4)
self.spnY.setMinimum(0.0001)
self.spnY.setMaximum(9999.0)
self.spnY.setMaximum(999999999.0)
self.spnY.setSingleStep(0.0001)
self.spnY.setObjectName("spnY")
self.gridlayout2.addWidget(self.spnY,1,2,1,1)
@@ -186,24 +192,14 @@ def setupUi(self, Dialog):
self.retranslateUi(Dialog)
QtCore.QObject.connect(self.buttonBox_2,QtCore.SIGNAL("accepted()"),Dialog.accept)
QtCore.QObject.connect(self.buttonBox_2,QtCore.SIGNAL("rejected()"),Dialog.close)
QtCore.QObject.connect(self.rdoBoundary,QtCore.SIGNAL("toggled(bool)"),self.inShape.setEnabled)
QtCore.QObject.connect(self.rdoCoordinates,QtCore.SIGNAL("toggled(bool)"),self.xMin.setEnabled)
QtCore.QObject.connect(self.rdoCoordinates,QtCore.SIGNAL("toggled(bool)"),self.xMax.setEnabled)
QtCore.QObject.connect(self.rdoCoordinates,QtCore.SIGNAL("toggled(bool)"),self.yMin.setEnabled)
QtCore.QObject.connect(self.rdoCoordinates,QtCore.SIGNAL("toggled(bool)"),self.yMax.setEnabled)
QtCore.QObject.connect(self.rdoCoordinates,QtCore.SIGNAL("toggled(bool)"),self.label.setEnabled)
QtCore.QObject.connect(self.rdoCoordinates,QtCore.SIGNAL("toggled(bool)"),self.label_3.setEnabled)
QtCore.QObject.connect(self.rdoCoordinates,QtCore.SIGNAL("toggled(bool)"),self.label_4.setEnabled)
QtCore.QObject.connect(self.rdoCoordinates,QtCore.SIGNAL("toggled(bool)"),self.label_5.setEnabled)
QtCore.QObject.connect(self.chkLock,QtCore.SIGNAL("clicked(bool)"),self.spnY.setDisabled)
QtCore.QObject.connect(self.chkLock,QtCore.SIGNAL("toggled(bool)"),self.label_8.setDisabled)
QtCore.QMetaObject.connectSlotsByName(Dialog)

def retranslateUi(self, Dialog):
Dialog.setWindowTitle(QtGui.QApplication.translate("Dialog", "Generate Regular Points", None, QtGui.QApplication.UnicodeUTF8))
self.groupBox.setTitle(QtGui.QApplication.translate("Dialog", "Grid Extent", None, QtGui.QApplication.UnicodeUTF8))
self.rdoBoundary.setText(QtGui.QApplication.translate("Dialog", "Input Boundary Layer", None, QtGui.QApplication.UnicodeUTF8))
self.rdoCoordinates.setText(QtGui.QApplication.translate("Dialog", "Input Coordinates", None, QtGui.QApplication.UnicodeUTF8))
self.groupBox.setTitle(QtGui.QApplication.translate("Dialog", "Grid extent", None, QtGui.QApplication.UnicodeUTF8))
self.btnUpdate.setText(QtGui.QApplication.translate("Dialog", "Update extents from layer", None, QtGui.QApplication.UnicodeUTF8))
self.label.setText(QtGui.QApplication.translate("Dialog", "X Min", None, QtGui.QApplication.UnicodeUTF8))
self.label_4.setText(QtGui.QApplication.translate("Dialog", "Y Min", None, QtGui.QApplication.UnicodeUTF8))
self.label_3.setText(QtGui.QApplication.translate("Dialog", "X Max", None, QtGui.QApplication.UnicodeUTF8))
@@ -212,8 +208,8 @@ def retranslateUi(self, Dialog):
self.label_7.setText(QtGui.QApplication.translate("Dialog", "X", None, QtGui.QApplication.UnicodeUTF8))
self.chkLock.setText(QtGui.QApplication.translate("Dialog", "Lock 1:1 ratio", None, QtGui.QApplication.UnicodeUTF8))
self.label_8.setText(QtGui.QApplication.translate("Dialog", "Y", None, QtGui.QApplication.UnicodeUTF8))
self.rdoPolygons.setText(QtGui.QApplication.translate("Dialog", "Output as polygons", None, QtGui.QApplication.UnicodeUTF8))
self.rdoLines.setText(QtGui.QApplication.translate("Dialog", "Output as lines", None, QtGui.QApplication.UnicodeUTF8))
self.label_2.setText(QtGui.QApplication.translate("Dialog", "Output Shapefile", None, QtGui.QApplication.UnicodeUTF8))
self.rdoPolygons.setText(QtGui.QApplication.translate("Dialog", "Output grid as polygons", None, QtGui.QApplication.UnicodeUTF8))
self.rdoLines.setText(QtGui.QApplication.translate("Dialog", "Output grid as lines", None, QtGui.QApplication.UnicodeUTF8))
self.label_2.setText(QtGui.QApplication.translate("Dialog", "Output shapefile", None, QtGui.QApplication.UnicodeUTF8))
self.toolOut.setText(QtGui.QApplication.translate("Dialog", "Browse", None, QtGui.QApplication.UnicodeUTF8))

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