def __init__(self, shapefile):
QtGui.QMainWindow.__init__(self)
self.setWindowTitle("Map Viewer")
canvas = qgisGui.QgsMapCanvas()
canvas.useImageToRender(False)
canvas.setCanvasColor(QtCore.Qt.white)
canvas.show()
layer = qgisCore.QgsVectorLayer(shapefile, "layer1", "ogr")
if not layer.isValid():
raise IOError("Invalid shapefile")
qgisCore.QgsMapLayerRegistry.instance().addMapLayer(layer)
canvas.setExtent(layer.extent())
canvas.setLayerSet([qgisGui.QgsMapCanvasLayer(layer)])
layout = QtGui.QVBoxLayout()
layout.addWidget(canvas)
contents = QtGui.QWidget()
contents.setLayout(layout)
self.setCentralWidget(contents)
if __name__ == "__main__":
from qgis.core.contextmanagers import qgisapp
import qgis.PyQt.QtWidgets as qtWdg
import qgis.gui as qgGui
from moduls.QvLlegenda import QvLlegenda
from moduls.QvAtributs import QvAtributs
with qgisapp(sysexit=False) as app:
QvApp().carregaIdioma(app, 'ca')
canv = qgGui.QgsMapCanvas()
atrib = QvAtributs(canv)
leyenda = QvLlegenda(canv, atrib)
leyenda.project.read('D:/qVista/EjemploSimbolos.qgs')
canv.setWindowTitle('Canvas')
canv.show()
leyenda.setWindowTitle('Llegenda')
leyenda.show()
# Acciones personalizadas para menú contextual de la leyenda:
#
def __init__(self, parent, boundingbox):
super(ExtentDialog, self).__init__(parent)
self.setupUi(self)
self.superParent = None
temp = self.parent()
if platform.system() != "Linux":
font = QFont()
font.setFamily(u"Segoe UI Symbol")
self.setFont(font)
while self.superParent is None:
if issubclass(type(temp),
geographicinformationPanel.Ui_geographicinfo):
self.superParent = temp
else:
temp = temp.parent()
for info in self.findChildren(qwidgets.QPushButton,
qcore.QRegExp('info_*')):
info.setIcon(qgui.QIcon(':/resourcesFolder/icons/help_icon.svg'))
info.setText('')
info.pressed.connect(self.printHelp)
self.layers = []
self.maxExt = None
self.boundingbox = boundingbox
self.outBB = False
# Create MapCanvas
self.canvas = gui.QgsMapCanvas(self)
# Append to Dialog Layout
self.toolBar = qwidgets.QToolBar()
self.layout = qwidgets.QVBoxLayout(self.frame)
self.layout.addWidget(self.toolBar)
self.layout.addWidget(self.canvas)
# Trigger on scaleChanged
self.canvas.scaleChanged.connect(self.scaleChanged)
# Trigger on renderStarting
self.canvas.renderStarting.connect(self.renderStarting)
# Create Map Tools
actionFullExt = qwidgets.QAction(
qgui.QIcon(':/resourcesFolder/icons/globe.svg'), "Mapa total",
self)
actionPan = qwidgets.QAction(
qgui.QIcon(':/resourcesFolder/icons/pan.svg'), "Mover", self)
actionZoomIn = qwidgets.QAction(
qgui.QIcon(':/resourcesFolder/icons/zoom_in.svg'), "Aproximar",
self)
actionZoomOut = qwidgets.QAction(
qgui.QIcon(':/resourcesFolder/icons/zoom_out.svg'), "Afastar",
self)
actionSelect = qwidgets.QAction(
qgui.QIcon(':/resourcesFolder/icons/selection.svg'), 'Desenhar',
self)
actionFromLayer = qwidgets.QAction(
qgui.QIcon(':/resourcesFolder/icons/layers.svg'),
'Obter de camada', self)
actionFullExt.setCheckable(False)
actionPan.setCheckable(True)
actionZoomIn.setCheckable(True)
actionZoomOut.setCheckable(True)
actionSelect.setCheckable(True)
actionFullExt.triggered.connect(self.fullext)
actionPan.triggered.connect(self.pan)
actionZoomIn.triggered.connect(self.zoomIn)
actionZoomOut.triggered.connect(self.zoomOut)
actionSelect.triggered.connect(self.select)
actionFromLayer.triggered.connect(self.chooseLayer)
# Add to created ToolBar
self.toolBar.addAction(actionFullExt)
self.toolBar.addSeparator()
self.toolBar.addAction(actionPan)
self.toolBar.addAction(actionZoomIn)
self.toolBar.addAction(actionZoomOut)
self.toolBar.addAction(actionSelect)
self.toolBar.addAction(actionFromLayer)
self.toolFullExtent = gui.QgsMapToolPan(self.canvas)
self.toolFullExtent.setAction(actionFullExt)
self.toolPan = gui.QgsMapToolPan(self.canvas)
self.toolPan.setAction(actionPan)
self.toolZoomIn = gui.QgsMapToolZoom(self.canvas, False) # false = in
self.toolZoomIn.setAction(actionZoomIn)
self.toolZoomOut = gui.QgsMapToolZoom(self.canvas, True) # true = out
self.toolZoomOut.setAction(actionZoomOut)
self.toolSelect = SelectionTool(self.canvas, self)
self.resourcebox.setChecked(True)
self.pan()
lugin_path = utils.pluginDirectory('EditorMetadadosMarswInforbiomares')
# Load Vector
layerpath = os.path.join(plugin_path, "resourcesFolder/World.shp")
llayer = core.QgsVectorLayer(layerpath, "WorldLayer", "ogr")
# Set Layer Symbology
props = {
'color_border': '0,0,0,125',
'style': 'no',
'style_border': 'solid'
}
#s = core.QgsFillSymbolV2.createSimple(props)
s = core.QgsFillSymbol.createSimple(props)
#llayer.setRendererV2(core.QgsSingleSymbolRendererV2(s))
llayer.setRenderer(core.QgsSingleSymbolRenderer(s))
# Set CRS - necessary to load Raster - it assumes this default CRS
s = qcore.QSettings()
oldValidation = str(
s.value("/Projections/defaultBehaviour", "useGlobal"))
s.setValue("/Projections/defaultBehaviour", "useGlobal")
# Load Raster
fileName = os.path.join(plugin_path, "resourcesFolder/GMRT.tif")
fileInfo = qcore.QFileInfo(fileName)
baseName = fileInfo.baseName()
layer = core.QgsRasterLayer(fileName, baseName)
layer.setCrs(
core.QgsCoordinateReferenceSystem(
4326, core.QgsCoordinateReferenceSystem.EpsgCrsId))
s.setValue("/Projections/defaultBehaviour", oldValidation)
# Set Raster ColorRamp
# layer.setDrawingStyle("SingleBandPseudoColor") # deprecated remove in 2.1.0 please
vmin = -5683.08
vmax = 2763.86
vrange = vmax - vmin
vadd = vrange // 2
vint = vmin + vadd
colDic = {
'brown': '#90330a',
'lightblue': '#d5f5f9',
'blue': '#2099d4'
}
valueList = [vmin, vint, vmax]
lst = [core.QgsColorRampShader.ColorRampItem(valueList[0], qgui.QColor(colDic['blue'])), \
core.QgsColorRampShader.ColorRampItem(valueList[1],
qgui.QColor(colDic['lightblue'])), \
core.QgsColorRampShader.ColorRampItem(valueList[2], qgui.QColor(colDic['brown']))]
myRasterShader = core.QgsRasterShader()
myColorRamp = core.QgsColorRampShader()
myColorRamp.setColorRampItemList(lst)
myColorRamp.setColorRampType(core.QgsColorRampShader.Interpolated)
myRasterShader.setRasterShaderFunction(myColorRamp)
myPseudoRenderer = core.QgsSingleBandPseudoColorRenderer(
layer.dataProvider(), layer.type(), myRasterShader)
layer.setRenderer(myPseudoRenderer)
## Add vector to map
#core.QgsMapLayerRegistry.instance().addMapLayer(llayer, False)
core.QgsProject.instance().addMapLayer(llayer, False)
## Add raster to map
#core.QgsMapLayerRegistry.instance().addMapLayer(layer, False)
core.QgsProject.instance().addMapLayer(layer, False)
## Save Max Extent
self.maxExt = core.QgsRectangle(-180., -90., 180., 90.)
# ----------------------------------
## Set initial general extent to ZEE or, if one is selected, from the selected boundingbox
if self.boundingbox.selectionModel().hasSelection() == False:
## Change button's title
self.add_extent.setText(u"Adicionar")
initialrect = core.QgsRectangle(-46.63064, 22.52146, 9.64473,
47.31826)
else:
## Get selected bounding box coords and resource flag
index = self.boundingbox.selectionModel().selectedRows()[0].row()
row = self.boundingbox.model().matrix[index]
minx = float(row[0].replace(',', '.'))
miny = float(row[3].replace(',', '.'))
maxx = float(row[1].replace(',', '.'))
maxy = float(row[2].replace(',', '.'))
if minx == 0. and miny == 0. and maxx == 0. and maxy == 0.:
initialrect = core.QgsRectangle(-46.63064, 22.52146, 9.64473,
47.31826)
else:
## Set fields with these values
self.xMin.setValue(minx)
self.xMax.setValue(maxx)
self.yMin.setValue(miny)
self.yMax.setValue(maxy)
self.resourcebox.setChecked(bool(row[4]))
## Set the extent and add a bit of zoom out of the selected extent
initialrect = core.QgsRectangle(minx - minx * 0.1,
miny - miny * 0.1,
maxx + maxx * 0.1,
maxy + maxy * 0.1)
## Draw initial extent on the map
self.toolSelect.drawRect(minx, miny, maxx, maxy)
## Change button's title
self.add_extent.setText(u"Alterar")
self.canvas.setExtent(initialrect)
# ----------------------------------
## Append layers to MapCanvas
self.layers.append(llayer)
self.layers.append(layer)
#self.layers.append(gui.QgsMapCanvasLayer(llayer))
#self.layers.append(gui.QgsMapCanvasLayer(layer))
#self.canvas.setLayerSet(self.layers)
self.canvas.setLayers([llayer, layer])
## Set triggers to buttons
self.add_extent.clicked.connect(self.add_new_extent)
self.btn_close.clicked.connect(lambda: self.done(QDialog.Rejected))
self.finished.connect(self.cleanup)
## Disabled coord fields
self.xMin.setEnabled(False)
self.xMax.setEnabled(False)
self.yMin.setEnabled(False)
self.yMax.setEnabled(False)
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from PyQt4 import QtGui, QtCore
import sys, os
from qgis import core, gui
core.QgsApplication.setPrefixPath('/usr', True)
core.QgsApplication.initQgis()
l = core.QgsVectorLayer(sys.argv[1], os.path.basename(sys.argv[1]), 'ogr')
app = QtGui.QApplication(sys.argv)
canvas = gui.QgsMapCanvas()
canvas.resize(800, 600)
core.QgsMapLayerRegistry.instance().addMapLayer(l)
canvas.setExtent(l.extent())
cl = gui.QgsMapCanvasLayer(l)
layers = [cl]
canvas.setLayerSet(layers)
canvas.show()
retval = app.exec_()
core.QgsApplication.exitQgis()
sys.exit(retval)