def __init__(self, iface):
# Save reference to the QGIS interface
self.iface = iface
self.dlg = MeshingDialog()
self.defaultDirec = "/tmp/qgis/"
self.shpName = self.defaultDirec + "temp"
self.mshName = self.defaultDirec + "temp"
self.geoName = self.defaultDirec + "temp"
self.meshing_option = ""
self.meshing_option_meshAdapt = "-algo meshadapt"
self.meshing_option_delaunay = "-algo del2d"
self.meshing_option_frontal = "-algo front2d"
def __init__(self, iface): # Save reference to the QGIS interface self.iface = iface self.dlg = MeshingDialog() self.defaultDirec = "/tmp/qgis/" self.shpName = self.defaultDirec + "temp" self.mshName = self.defaultDirec + "temp" self.geoName = self.defaultDirec + "temp" self.meshing_option = "" self.meshing_option_meshAdapt = "-algo meshadapt" self.meshing_option_delaunay = "-algo del2d" self.meshing_option_frontal = "-algo front2d"
class Meshing:
def __init__(self, iface):
# Save reference to the QGIS interface
self.iface = iface
self.dlg = MeshingDialog()
self.defaultDirec = "/tmp/qgis/"
self.shpName = self.defaultDirec + "temp"
self.mshName = self.defaultDirec + "temp"
self.geoName = self.defaultDirec + "temp"
self.meshing_option = ""
self.meshing_option_meshAdapt = "-algo meshadapt"
self.meshing_option_delaunay = "-algo del2d"
self.meshing_option_frontal = "-algo front2d"
def initGui(self):
# Create action that will start plugin configuration
self.action = QAction(QIcon(":/plugins/Meshing/icon.png"), \
"meshing", self.iface.mainWindow())
# connect the action to the run method
QObject.connect(self.action, SIGNAL("activated()"), self.run)
QObject.connect(self.dlg.ui.browse_geo, SIGNAL("clicked()"), self.save_geo)
QObject.connect(self.dlg.ui.browse_shp, SIGNAL("clicked()"), self.save_shp)
QObject.connect(self.dlg.ui.browse_msh, SIGNAL("clicked()"), self.save_msh)
# Add toolbar button and menu item
self.iface.addToolBarIcon(self.action)
self.iface.addPluginToMenu("&meshing", self.action)
#uses the file dialog to get the naem of the file from user
def save_geo(self):
#self.getGeoCaption = QString("Save Geo File")
self.geoName = QFileDialog.getSaveFileName(caption=QString("Save Geo File"))
self.dlg.ui.geo_path.setText(self.geoName)
#uses the file dialog to get the filepath to save the shapefile for mesh
def save_shp(self):
#self.getShpCaption("Save Shapefile for Mesh")
self.shpName = QFileDialog.getSaveFileName(caption=QString("Save shapefile"))
self.dlg.ui.shp_path.setText(self.shpName)
#uses the file dialog to get the filepath to save the .msh file
def save_msh(self):
#self.getMshCaption("Save Mesh(.msh) File")
self.mshName = QFileDialog.getSaveFileName(caption=QString("Save Mesh File"))
self.dlg.ui.mesh_path.setText(self.mshName)
def unload(self):
# Remove the plugin menu item and icon
self.iface.removePluginMenu("&meshing",self.action)
self.iface.removeToolBarIcon(self.action)
#this method meshes the current active layer in qgis
def meshCurrentLayer(self):
i = call(["mkdir", self.defaultDirec[0:-1]])
if i==0: return
try:
aLayer = self.iface.activeLayer()
filepath = str(aLayer.source())
except AttributeError:
QtGui.QMessageBox.information(None,"ERROR: No Active Layer","There are no active layer to mesh. Please load a shapefile layer first to mesh.")
return True
#call(["cd","~/.qgis/python/plugins/Meshing"])
i = getGeoFile(filepath,self.geoName)
#i = call(["python","~/.qgis/makeGeoFile_2.py",filepath,self.defaultDirec+"temp"])
if i==2:
QtGui.QMessageBox.information(None,"ERROR: Creating .geo file","An error occurred while converting the current layer to a .geo file to mesh")
return True
i = call(["gmsh","-2",str(self.meshing_option),self.geoName+".geo"])
#call(["rm",self.defaultDirec+"temp.geo"])
if i==2:
QtGui.QMessageBox.information(None,"ERROR: In Generating Mesh","An error occurred while generating the mesh for the current layer")
return True
i = getShapeForMesh(self.mshName+".msh",self.shpName)
if i==1:
QtGui.QMessageBox.information(None,"ERROR : Loading layer into QGIS","An eror has occured while the the meshed layer was trying to be loaded into Qgis")
return True
return False
#this method sets up the drop down menu for user to choose the meshing
#algorithm
def setMeshingOption(self):
self.dlg.ui.meshing_options.clear()
items = list([QString("MeshAdapt"),QString("Delaunay"),QString("Frontal")])
self.dlg.ui.meshing_options.addItems(items)
"""
This method retrieves the information from the drop down menu
for the meshing algorithm to be used while producing the mesh
"""
def getMeshingOption(self):
option = str(self.dlg.ui.meshing_options.currentText())
if option=="MeshAdapt":
self.meshing_option = self.meshing_option_meshAdapt
elif option=="Delaunay":
self.meshing_option = self.meshing_option_delaunay
else:
self.meshing_option = self.meshing_option_frontal
"""
This method meshes the geo file hich would be produced by the current
active layer and then displayes the shapefile of the mesh itself
"""
def run(self):
QtGui.QMessageBox.information(None,"Meshing", "Please leave the file paths to save the file blank if you do not wish to save any files")
self.setMeshingOption()
self.dlg.show()
result = self.dlg.exec_()
if result==1:
error = self.meshCurrentLayer()
self.getMeshingOption()
if error==True:
return
self.iface.addVectorLayer(self.defaultDirec+"temp.shp","Mesh","ogr")
class Meshing:
def __init__(self, iface):
# Save reference to the QGIS interface
self.iface = iface
self.dlg = MeshingDialog()
self.defaultDirec = "/tmp/qgis/"
self.shpName = self.defaultDirec + "temp"
self.mshName = self.defaultDirec + "temp"
self.geoName = self.defaultDirec + "temp"
self.meshing_option = ""
self.meshing_option_meshAdapt = "-algo meshadapt"
self.meshing_option_delaunay = "-algo del2d"
self.meshing_option_frontal = "-algo front2d"
def initGui(self):
# Create action that will start plugin configuration
self.action = QAction(QIcon(":/plugins/Meshing/icon.png"), \
"meshing", self.iface.mainWindow())
# connect the action to the run method
QObject.connect(self.action, SIGNAL("activated()"), self.run)
QObject.connect(self.dlg.ui.browse_geo, SIGNAL("clicked()"),
self.save_geo)
QObject.connect(self.dlg.ui.browse_shp, SIGNAL("clicked()"),
self.save_shp)
QObject.connect(self.dlg.ui.browse_msh, SIGNAL("clicked()"),
self.save_msh)
# Add toolbar button and menu item
self.iface.addToolBarIcon(self.action)
self.iface.addPluginToMenu("&meshing", self.action)
#uses the file dialog to get the naem of the file from user
def save_geo(self):
#self.getGeoCaption = QString("Save Geo File")
self.geoName = QFileDialog.getSaveFileName(
caption=QString("Save Geo File"))
self.dlg.ui.geo_path.setText(self.geoName)
#uses the file dialog to get the filepath to save the shapefile for mesh
def save_shp(self):
#self.getShpCaption("Save Shapefile for Mesh")
self.shpName = QFileDialog.getSaveFileName(
caption=QString("Save shapefile"))
self.dlg.ui.shp_path.setText(self.shpName)
#uses the file dialog to get the filepath to save the .msh file
def save_msh(self):
#self.getMshCaption("Save Mesh(.msh) File")
self.mshName = QFileDialog.getSaveFileName(
caption=QString("Save Mesh File"))
self.dlg.ui.mesh_path.setText(self.mshName)
def unload(self):
# Remove the plugin menu item and icon
self.iface.removePluginMenu("&meshing", self.action)
self.iface.removeToolBarIcon(self.action)
#this method meshes the current active layer in qgis
def meshCurrentLayer(self):
i = call(["mkdir", self.defaultDirec[0:-1]])
if i == 0: return
try:
aLayer = self.iface.activeLayer()
filepath = str(aLayer.source())
except AttributeError:
QtGui.QMessageBox.information(
None, "ERROR: No Active Layer",
"There are no active layer to mesh. Please load a shapefile layer first to mesh."
)
return True
#call(["cd","~/.qgis/python/plugins/Meshing"])
i = getGeoFile(filepath, self.geoName)
#i = call(["python","~/.qgis/makeGeoFile_2.py",filepath,self.defaultDirec+"temp"])
if i == 2:
QtGui.QMessageBox.information(
None, "ERROR: Creating .geo file",
"An error occurred while converting the current layer to a .geo file to mesh"
)
return True
i = call(
["gmsh", "-2",
str(self.meshing_option), self.geoName + ".geo"])
#call(["rm",self.defaultDirec+"temp.geo"])
if i == 2:
QtGui.QMessageBox.information(
None, "ERROR: In Generating Mesh",
"An error occurred while generating the mesh for the current layer"
)
return True
i = getShapeForMesh(self.mshName + ".msh", self.shpName)
if i == 1:
QtGui.QMessageBox.information(
None, "ERROR : Loading layer into QGIS",
"An eror has occured while the the meshed layer was trying to be loaded into Qgis"
)
return True
return False
#this method sets up the drop down menu for user to choose the meshing
#algorithm
def setMeshingOption(self):
self.dlg.ui.meshing_options.clear()
items = list(
[QString("MeshAdapt"),
QString("Delaunay"),
QString("Frontal")])
self.dlg.ui.meshing_options.addItems(items)
"""
This method retrieves the information from the drop down menu
for the meshing algorithm to be used while producing the mesh
"""
def getMeshingOption(self):
option = str(self.dlg.ui.meshing_options.currentText())
if option == "MeshAdapt":
self.meshing_option = self.meshing_option_meshAdapt
elif option == "Delaunay":
self.meshing_option = self.meshing_option_delaunay
else:
self.meshing_option = self.meshing_option_frontal
"""
This method meshes the geo file hich would be produced by the current
active layer and then displayes the shapefile of the mesh itself
"""
def run(self):
QtGui.QMessageBox.information(
None, "Meshing",
"Please leave the file paths to save the file blank if you do not wish to save any files"
)
self.setMeshingOption()
self.dlg.show()
result = self.dlg.exec_()
if result == 1:
error = self.meshCurrentLayer()
self.getMeshingOption()
if error == True:
return
self.iface.addVectorLayer(self.defaultDirec + "temp.shp", "Mesh",
"ogr")
