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latLonTools.py
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latLonTools.py
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from qgis.PyQt.QtCore import Qt, QTimer, QUrl
from qgis.PyQt.QtGui import QIcon
from qgis.PyQt.QtWidgets import QAction, QMenu, QApplication
from qgis.core import Qgis, QgsCoordinateTransform, QgsVectorLayer, QgsRectangle, QgsPoint, QgsPointXY, QgsGeometry, QgsWkbTypes, QgsProject, QgsApplication
from qgis.gui import QgsRubberBand
import processing
from .zoomToLatLon import ZoomToLatLon
from .multizoom import MultiZoomWidget
from .copyLatLonTool import CopyLatLonTool
from .showOnMapTool import ShowOnMapTool
from .settings import SettingsWidget, settings
from .provider import LatLonToolsProvider
from .util import epsg4326
import os
import webbrowser
class LatLonTools:
digitizerDialog = None
convertCoordinateDialog = None
def __init__(self, iface):
self.iface = iface
self.canvas = iface.mapCanvas()
self.crossRb = QgsRubberBand(self.canvas, QgsWkbTypes.LineGeometry)
self.crossRb.setColor(Qt.red)
self.provider = LatLonToolsProvider()
self.toolbar = self.iface.addToolBar('Lat Lon Tools Toolbar')
self.toolbar.setObjectName('LatLonToolsToolbar')
def initGui(self):
'''Initialize Lot Lon Tools GUI.'''
# Initialize the Settings Dialog box
self.settingsDialog = SettingsWidget(self, self.iface, self.iface.mainWindow())
self.mapTool = CopyLatLonTool(self.settingsDialog, self.iface)
self.showMapTool = ShowOnMapTool(self.iface)
# Add Interface for Coordinate Capturing
icon = QIcon(os.path.dirname(__file__) + "/images/copyicon.png")
self.copyAction = QAction(icon, "Copy/Display Coordinate", self.iface.mainWindow())
self.copyAction.setObjectName('latLonToolsCopy')
self.copyAction.triggered.connect(self.startCapture)
self.copyAction.setCheckable(True)
self.toolbar.addAction(self.copyAction)
self.iface.addPluginToMenu("Lat Lon Tools", self.copyAction)
# Add Interface for External Map
icon = QIcon(os.path.dirname(__file__) + "/images/mapicon.png")
self.externMapAction = QAction(icon, "Show in External Map", self.iface.mainWindow())
self.externMapAction.setObjectName('latLonToolsExternalMap')
self.externMapAction.triggered.connect(self.setShowMapTool)
self.externMapAction.setCheckable(True)
self.toolbar.addAction(self.externMapAction)
self.iface.addPluginToMenu("Lat Lon Tools", self.externMapAction)
# Add Interface for Zoom to Coordinate
icon = QIcon(os.path.dirname(__file__) + "/images/zoomicon.png")
self.zoomToAction = QAction(icon, "Zoom To Coordinate", self.iface.mainWindow())
self.zoomToAction.setObjectName('latLonToolsZoom')
self.zoomToAction.triggered.connect(self.showZoomToDialog)
self.toolbar.addAction(self.zoomToAction)
self.iface.addPluginToMenu('Lat Lon Tools', self.zoomToAction)
self.zoomToDialog = ZoomToLatLon(self, self.iface, self.iface.mainWindow())
self.iface.addDockWidget(Qt.LeftDockWidgetArea, self.zoomToDialog)
self.zoomToDialog.hide()
# Add Interface for Multi point zoom
icon = QIcon(os.path.dirname(__file__) + '/images/multizoom.png')
self.multiZoomToAction = QAction(icon, "Multi-location Zoom", self.iface.mainWindow())
self.multiZoomToAction.setObjectName('latLonToolsMultiZoom')
self.multiZoomToAction.triggered.connect(self.multiZoomTo)
self.toolbar.addAction(self.multiZoomToAction)
self.iface.addPluginToMenu('Lat Lon Tools', self.multiZoomToAction)
self.multiZoomDialog = MultiZoomWidget(self, self.settingsDialog, self.iface.mainWindow())
self.multiZoomDialog.hide()
self.multiZoomDialog.setFloating(True)
# Create the coordinate converter menu
icon = QIcon(':/images/themes/default/mIconProjectionEnabled.svg')
self.convertCoordinatesAction = QAction(icon, "Coordinate Conversion", self.iface.mainWindow())
self.convertCoordinatesAction.setObjectName('latLonToolsCoordinateConversion')
self.convertCoordinatesAction.triggered.connect(self.convertCoordinatesTool)
self.toolbar.addAction(self.convertCoordinatesAction)
self.iface.addPluginToMenu("Lat Lon Tools", self.convertCoordinatesAction)
# Create the conversions menu
menu = QMenu()
icon = QIcon(os.path.dirname(__file__) + '/images/field2geom.png')
action = menu.addAction(icon, "Fields to point layer", self.field2geom)
action.setObjectName('latLonToolsField2Geom')
icon = QIcon(os.path.dirname(__file__) + '/images/geom2field.png')
action = menu.addAction(icon, "Point layer to fields", self.geom2Field)
action.setObjectName('latLonToolsGeom2Field')
icon = QIcon(os.path.dirname(__file__) + '/images/pluscodes.png')
action = menu.addAction(icon, "Plus Codes to point layer", self.PlusCodestoLayer)
action.setObjectName('latLonToolsPlusCodes2Geom')
action = menu.addAction(icon, "Point layer to Plus Codes", self.toPlusCodes)
action.setObjectName('latLonToolsGeom2PlusCodes')
icon = QIcon(os.path.dirname(__file__) + '/images/mgrs2point.png')
action = menu.addAction(icon, "MGRS to point layer", self.MGRStoLayer)
action.setObjectName('latLonToolsMGRS2Geom')
icon = QIcon(os.path.dirname(__file__) + '/images/point2mgrs.png')
action = menu.addAction(icon, "Point layer to MGRS", self.toMGRS)
action.setObjectName('latLonToolsGeom2MGRS')
self.conversionsAction = QAction(icon, "Conversions", self.iface.mainWindow())
self.conversionsAction.setMenu(menu)
self.iface.addPluginToMenu('Lat Lon Tools', self.conversionsAction)
# Add to Digitize Toolbar
icon = QIcon(os.path.dirname(__file__) + '/images/latLonDigitize.png')
self.digitizeAction = QAction(icon, "Lat Lon Digitize", self.iface.mainWindow())
self.digitizeAction.setObjectName('latLonToolsDigitize')
self.digitizeAction.triggered.connect(self.digitizeClicked)
self.digitizeAction.setEnabled(False)
self.toolbar.addAction(self.digitizeAction)
self.iface.addPluginToMenu('Lat Lon Tools', self.digitizeAction)
# Add Interface for copying the canvas extent
icon = QIcon(os.path.dirname(__file__) + "/images/copycanvas.png")
self.copyCanvasAction = QAction(icon, "Copy Canvas Bounding Box", self.iface.mainWindow())
self.copyCanvasAction.setObjectName('latLonToolsCopyCanvas')
self.copyCanvasAction.triggered.connect(self.copyCanvas)
self.toolbar.addAction(self.copyCanvasAction)
self.iface.addPluginToMenu("Lat Lon Tools", self.copyCanvasAction)
# Initialize the Settings Dialog Box
settingsicon = QIcon(os.path.dirname(__file__) + '/images/settings.png')
self.settingsAction = QAction(settingsicon, "Settings", self.iface.mainWindow())
self.settingsAction.setObjectName('latLonToolsSettings')
self.settingsAction.triggered.connect(self.settings)
self.iface.addPluginToMenu('Lat Lon Tools', self.settingsAction)
# Help
icon = QIcon(os.path.dirname(__file__) + '/images/help.png')
self.helpAction = QAction(icon, "Help", self.iface.mainWindow())
self.helpAction.setObjectName('latLonToolsHelp')
self.helpAction.triggered.connect(self.help)
self.iface.addPluginToMenu('Lat Lon Tools', self.helpAction)
self.iface.currentLayerChanged.connect(self.currentLayerChanged)
self.canvas.mapToolSet.connect(self.unsetTool)
self.enableDigitizeTool()
# Add the processing provider
QgsApplication.processingRegistry().addProvider(self.provider)
def unsetTool(self, tool):
'''Uncheck the Copy Lat Lon tool'''
try:
if not isinstance(tool, CopyLatLonTool):
self.copyAction.setChecked(False)
self.multiZoomDialog.stopCapture()
self.mapTool.capture4326 = False
if not isinstance(tool, ShowOnMapTool):
self.externMapAction.setChecked(False)
except Exception:
pass
def unload(self):
'''Unload LatLonTools from the QGIS interface'''
self.zoomToDialog.removeMarker()
self.multiZoomDialog.removeMarkers()
self.canvas.unsetMapTool(self.mapTool)
self.canvas.unsetMapTool(self.showMapTool)
self.iface.removePluginMenu('Lat Lon Tools', self.copyAction)
self.iface.removePluginMenu('Lat Lon Tools', self.copyCanvasAction)
self.iface.removePluginMenu('Lat Lon Tools', self.externMapAction)
self.iface.removePluginMenu('Lat Lon Tools', self.zoomToAction)
self.iface.removePluginMenu('Lat Lon Tools', self.multiZoomToAction)
self.iface.removePluginMenu('Lat Lon Tools', self.convertCoordinatesAction)
self.iface.removePluginMenu('Lat Lon Tools', self.conversionsAction)
self.iface.removePluginMenu('Lat Lon Tools', self.settingsAction)
self.iface.removePluginMenu('Lat Lon Tools', self.helpAction)
self.iface.removePluginMenu('Lat Lon Tools', self.digitizeAction)
self.iface.removeDockWidget(self.zoomToDialog)
self.iface.removeDockWidget(self.multiZoomDialog)
# Remove Toolbar Icons
self.iface.removeToolBarIcon(self.copyAction)
self.iface.removeToolBarIcon(self.copyCanvasAction)
self.iface.removeToolBarIcon(self.zoomToAction)
self.iface.removeToolBarIcon(self.externMapAction)
self.iface.removeToolBarIcon(self.multiZoomToAction)
self.iface.removeToolBarIcon(self.convertCoordinatesAction)
self.iface.removeToolBarIcon(self.digitizeAction)
del self.toolbar
self.zoomToDialog = None
self.multiZoomDialog = None
self.settingsDialog = None
self.showMapTool = None
self.mapTool = None
self.digitizerDialog = None
self.convertCoordinateDialog = None
QgsApplication.processingRegistry().removeProvider(self.provider)
def startCapture(self):
'''Set the focus of the copy coordinate tool and check it'''
self.copyAction.setChecked(True)
self.canvas.setMapTool(self.mapTool)
def copyCanvas(self):
extent = self.iface.mapCanvas().extent()
canvasCrs = self.canvas.mapSettings().destinationCrs()
if settings.bBoxCrs == 0 and canvasCrs != epsg4326:
transform = QgsCoordinateTransform(canvasCrs, epsg4326, QgsProject.instance())
p1x, p1y = transform.transform(float(extent.xMinimum()), float(extent.yMinimum()))
p2x, p2y = transform.transform(float(extent.xMaximum()), float(extent.yMaximum()))
extent.set(p1x, p1y, p2x, p2y)
delim = settings.bBoxDelimiter
prefix = settings.bBoxPrefix
suffix = settings.bBoxSuffix
precision = settings.bBoxDigits
outStr = ''
minX = extent.xMinimum()
minY = extent.yMinimum()
maxX = extent.xMaximum()
maxY = extent.yMaximum()
if settings.bBoxFormat == 0: # minX,minY,maxX,maxY - using the delimiter
outStr = '{:.{prec}f}{}{:.{prec}f}{}{:.{prec}f}{}{:.{prec}f}'.format(
minX, delim, minY, delim, maxX, delim, maxY, prec=precision)
elif settings.bBoxFormat == 1: # minX,maxX,minY,maxY - Using the selected delimiter'
outStr = '{:.{prec}f}{}{:.{prec}f}{}{:.{prec}f}{}{:.{prec}f}'.format(
minX, delim, maxX, delim, minY, delim, maxY, prec=precision)
elif settings.bBoxFormat == 2: # x1 y1,x2 y2,x3 y3,x4 y4,x1 y1 - Polygon format
outStr = '{:.{prec}f} {:.{prec}f},{:.{prec}f} {:.{prec}f},{:.{prec}f} {:.{prec}f},{:.{prec}f} {:.{prec}f},{:.{prec}f} {:.{prec}f}'.format(
minX, minY, minX, maxY, maxX, maxY, maxX, minY, minX, minY, prec=precision)
elif settings.bBoxFormat == 3: # x1,y1 x2,y2 x3,y3 x4,y4 x1,y1 - Polygon format
outStr = '{:.{prec}f},{:.{prec}f} {:.{prec}f},{:.{prec}f} {:.{prec}f},{:.{prec}f} {:.{prec}f},{:.{prec}f} {:.{prec}f},{:.{prec}f}'.format(
minX, minY, minX, maxY, maxX, maxY, maxX, minY, minX, minY, prec=precision)
elif settings.bBoxFormat == 4: # WKT Polygon
outStr = extent.asWktPolygon()
elif settings.bBoxFormat == 5: # bbox: [minX, minY, maxX, maxY] - MapProxy
outStr = 'bbox: [{}, {}, {}, {}]'.format(
minX, minY, maxX, maxY)
elif settings.bBoxFormat == 6: # bbox: [minX, minY, maxX, maxY] - MapProxy
outStr = 'bbox={},{},{},{}'.format(
minX, minY, maxX, maxY)
outStr = '{}{}{}'.format(prefix, outStr, suffix)
clipboard = QApplication.clipboard()
clipboard.setText(outStr)
self.iface.messageBar().pushMessage("", "'{}' copied to the clipboard".format(outStr), level=Qgis.Info, duration=4)
def setShowMapTool(self):
'''Set the focus of the external map tool and check it'''
self.externMapAction.setChecked(True)
self.canvas.setMapTool(self.showMapTool)
def showZoomToDialog(self):
'''Show the zoom to docked widget.'''
self.zoomToDialog.show()
def convertCoordinatesTool(self):
'''Display the Convert Coordinate Tool Dialog box.'''
if self.convertCoordinateDialog is None:
from .coordinateConverter import CoordinateConverterWidget
self.convertCoordinateDialog = CoordinateConverterWidget(self, self.settingsDialog, self.iface, self.iface.mainWindow())
self.convertCoordinateDialog.show()
def multiZoomTo(self):
'''Display the Multi-zoom to dialog box'''
self.multiZoomDialog.show()
def field2geom(self):
'''Convert layer containing a point x & y coordinate to a new point layer'''
processing.execAlgorithmDialog('latlontools:field2geom', {})
def geom2Field(self):
'''Convert layer geometry to a text string'''
processing.execAlgorithmDialog('latlontools:geom2field', {})
def toMGRS(self):
'''Display the to MGRS dialog box'''
processing.execAlgorithmDialog('latlontools:point2mgrs', {})
def MGRStoLayer(self):
'''Display the to MGRS dialog box'''
processing.execAlgorithmDialog('latlontools:mgrs2point', {})
def toPlusCodes(self):
processing.execAlgorithmDialog('latlontools:point2pluscodes', {})
def PlusCodestoLayer(self):
processing.execAlgorithmDialog('latlontools:pluscodes2point', {})
def settings(self):
'''Show the settings dialog box'''
self.settingsDialog.show()
def help(self):
'''Display a help page'''
url = QUrl.fromLocalFile(os.path.dirname(__file__) + "/index.html").toString()
webbrowser.open(url, new=2)
def settingsChanged(self):
# Settings may have changed so we need to make sure the zoomToDialog window is configured properly
self.zoomToDialog.configure()
self.multiZoomDialog.settingsChanged()
def zoomTo(self, srcCrs, lat, lon):
canvasCrs = self.canvas.mapSettings().destinationCrs()
transform = QgsCoordinateTransform(srcCrs, canvasCrs, QgsProject.instance())
x, y = transform.transform(float(lon), float(lat))
rect = QgsRectangle(x, y, x, y)
self.canvas.setExtent(rect)
pt = QgsPointXY(x, y)
self.highlight(pt)
self.canvas.refresh()
return pt
def highlight(self, point):
currExt = self.canvas.extent()
leftPt = QgsPoint(currExt.xMinimum(), point.y())
rightPt = QgsPoint(currExt.xMaximum(), point.y())
topPt = QgsPoint(point.x(), currExt.yMaximum())
bottomPt = QgsPoint(point.x(), currExt.yMinimum())
horizLine = QgsGeometry.fromPolyline([leftPt, rightPt])
vertLine = QgsGeometry.fromPolyline([topPt, bottomPt])
self.crossRb.reset(QgsWkbTypes.LineGeometry)
self.crossRb.addGeometry(horizLine, None)
self.crossRb.addGeometry(vertLine, None)
QTimer.singleShot(700, self.resetRubberbands)
def resetRubberbands(self):
self.crossRb.reset()
def digitizeClicked(self):
if self.digitizerDialog is None:
from .digitizer import DigitizerWidget
self.digitizerDialog = DigitizerWidget(self, self.iface, self.iface.mainWindow())
self.digitizerDialog.show()
def currentLayerChanged(self):
layer = self.iface.activeLayer()
if layer is not None:
try:
layer.editingStarted.disconnect(self.layerEditingChanged)
except Exception:
pass
try:
layer.editingStopped.disconnect(self.layerEditingChanged)
except Exception:
pass
if isinstance(layer, QgsVectorLayer):
layer.editingStarted.connect(self.layerEditingChanged)
layer.editingStopped.connect(self.layerEditingChanged)
self.enableDigitizeTool()
def layerEditingChanged(self):
self.enableDigitizeTool()
def enableDigitizeTool(self):
self.digitizeAction.setEnabled(False)
layer = self.iface.activeLayer()
if layer is not None and isinstance(layer, QgsVectorLayer) and (layer.geometryType() == QgsWkbTypes.PointGeometry) and layer.isEditable():
self.digitizeAction.setEnabled(True)
else:
if self.digitizerDialog is not None:
self.digitizerDialog.close()