/
copyLatLonTool.py
323 lines (308 loc) · 15.7 KB
/
copyLatLonTool.py
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"""
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
"""
from qgis.PyQt.QtCore import Qt, pyqtSignal
from qgis.PyQt.QtGui import QColor
from qgis.PyQt.QtWidgets import QApplication
from qgis.core import Qgis, QgsCoordinateTransform, QgsPointXY, QgsProject, QgsSettings
from qgis.gui import QgsMapToolEmitPoint, QgsVertexMarker
from .settings import settings, CoordOrder, H3_INSTALLED
from .util import epsg4326, formatDmsString, formatMgrsString, tr
from .utm import latLon2Utm
from .ups import latLon2Ups
from . import mgrs
from . import olc
from . import geohash
from . import maidenhead
from . import georef
if H3_INSTALLED:
import h3
# import traceback
class CopyLatLonTool(QgsMapToolEmitPoint):
'''Class to interact with the map canvas to capture the coordinate
when the mouse button is pressed and to display the coordinate in
in the status bar.'''
captureStopped = pyqtSignal()
def __init__(self, settings, iface):
QgsMapToolEmitPoint.__init__(self, iface.mapCanvas())
self.iface = iface
self.canvas = iface.mapCanvas()
self.settings = settings
self.marker = None
self.vertex = None
def activate(self):
'''When activated set the cursor to a crosshair.'''
self.canvas.setCursor(Qt.CrossCursor)
self.snapcolor = QgsSettings().value( "/qgis/digitizing/snap_color" , QColor( Qt.magenta ) )
def deactivate(self):
self.removeMarker()
self.removeVertexMarker()
self.captureStopped.emit()
def formatCoord(self, pt, delimiter):
'''Format the coordinate string according to the settings from
the settings dialog.'''
if self.settings.captureProjIsWgs84(): # ProjectionTypeWgs84
# Make sure the coordinate is transformed to EPSG:4326
canvasCRS = self.canvas.mapSettings().destinationCrs()
if canvasCRS == epsg4326:
pt4326 = pt
else:
transform = QgsCoordinateTransform(canvasCRS, epsg4326, QgsProject.instance())
pt4326 = transform.transform(pt.x(), pt.y())
lat = pt4326.y()
lon = pt4326.x()
if self.settings.wgs84NumberFormat == self.settings.Wgs84TypeDMS: # DMS
msg = formatDmsString(lat, lon, 0, self.settings.dmsPrecision, self.settings.coordOrder, delimiter, settings.captureAddDmsSpace, settings.capturePadZeroes)
elif self.settings.wgs84NumberFormat == self.settings.Wgs84TypeDDMMSS: # DDMMSS
msg = formatDmsString(lat, lon, 1, self.settings.dmsPrecision, self.settings.coordOrder, delimiter, settings.captureAddDmsSpace, settings.capturePadZeroes)
elif self.settings.wgs84NumberFormat == self.settings.Wgs84TypeDMM: # DM.MM
msg = formatDmsString(lat, lon, 2, settings.captureDmmPrecision, self.settings.coordOrder, delimiter, settings.captureAddDmsSpace, settings.capturePadZeroes)
elif self.settings.wgs84NumberFormat == self.settings.Wgs84TypeWKT: # WKT
msg = 'POINT({:.{prec}f} {:.{prec}f})'.format(pt4326.x(), pt4326.y(), prec=self.settings.decimalDigits)
elif self.settings.wgs84NumberFormat == self.settings.Wgs84TypeGeoJSON: # GeoJSON
msg = '{{"type": "Point","coordinates": [{:.{prec}f},{:.{prec}f}]}}'.format(pt4326.x(), pt4326.y(), prec=self.settings.decimalDigits)
else: # decimal degrees
if self.settings.coordOrder == CoordOrder.OrderYX:
msg = '{:.{prec}f}{}{:.{prec}f}'.format(pt4326.y(), delimiter, pt4326.x(), prec=self.settings.decimalDigits)
else:
msg = '{:.{prec}f}{}{:.{prec}f}'.format(pt4326.x(), delimiter, pt4326.y(), prec=self.settings.decimalDigits)
elif self.settings.captureProjIsProjectCRS():
# Projection in the project CRS
if self.settings.otherNumberFormat == 0: # Numerical
if self.settings.coordOrder == CoordOrder.OrderYX:
msg = '{:.{prec}f}{}{:.{prec}f}'.format(pt.y(), delimiter, pt.x(), prec=self.settings.decimalDigits)
else:
msg = '{:.{prec}f}{}{:.{prec}f}'.format(pt.x(), delimiter, pt.y(), prec=self.settings.decimalDigits)
else:
msg = 'POINT({:.{prec}f} {:.{prec}f})'.format(pt.x(), pt.y(), prec=self.settings.decimalDigits)
elif self.settings.captureProjIsCustomCRS():
# Projection is a custom CRS
canvasCRS = self.canvas.mapSettings().destinationCrs()
customCRS = self.settings.captureCustomCRS()
transform = QgsCoordinateTransform(canvasCRS, customCRS, QgsProject.instance())
pt = transform.transform(pt.x(), pt.y())
if self.settings.otherNumberFormat == 0: # Numerical
if self.settings.coordOrder == CoordOrder.OrderYX:
msg = '{:.{prec}f}{}{:.{prec}f}'.format(pt.y(), delimiter, pt.x(), prec=self.settings.decimalDigits)
else:
msg = '{:.{prec}f}{}{:.{prec}f}'.format(pt.x(), delimiter, pt.y(), prec=self.settings.decimalDigits)
else:
msg = 'POINT({:.{prec}f} {:.{prec}f})'.format(pt.x(), pt.y(), prec=self.settings.decimalDigits)
elif self.settings.captureProjIsMGRS():
# Make sure the coordinate is transformed to EPSG:4326
canvasCRS = self.canvas.mapSettings().destinationCrs()
if canvasCRS == epsg4326:
pt4326 = pt
else:
transform = QgsCoordinateTransform(canvasCRS, epsg4326, QgsProject.instance())
pt4326 = transform.transform(pt.x(), pt.y())
try:
msg = mgrs.toMgrs(pt4326.y(), pt4326.x(), settings.captureMgrsPrec)
msg = formatMgrsString(msg, settings.captureMgrsAddSpacesCheckBox)
except Exception:
# traceback.print_exc()
msg = None
elif self.settings.captureProjIsPlusCodes():
# Make sure the coordinate is transformed to EPSG:4326
canvasCRS = self.canvas.mapSettings().destinationCrs()
if canvasCRS == epsg4326:
pt4326 = pt
else:
transform = QgsCoordinateTransform(canvasCRS, epsg4326, QgsProject.instance())
pt4326 = transform.transform(pt.x(), pt.y())
try:
msg = olc.encode(pt4326.y(), pt4326.x(), self.settings.plusCodesLength)
except Exception:
msg = None
elif self.settings.captureProjIsUTM():
# Make sure the coordinate is transformed to EPSG:4326
canvasCRS = self.canvas.mapSettings().destinationCrs()
if canvasCRS == epsg4326:
pt4326 = pt
else:
transform = QgsCoordinateTransform(canvasCRS, epsg4326, QgsProject.instance())
pt4326 = transform.transform(pt.x(), pt.y())
msg = latLon2Utm(pt4326.y(), pt4326.x(), settings.captureUtmPrecision, settings.captureUtmFormat)
if msg == '':
msg = None
elif self.settings.captureProjIsUPS():
# Make sure the coordinate is transformed to EPSG:4326
canvasCRS = self.canvas.mapSettings().destinationCrs()
if canvasCRS == epsg4326:
pt4326 = pt
else:
transform = QgsCoordinateTransform(canvasCRS, epsg4326, QgsProject.instance())
pt4326 = transform.transform(pt.x(), pt.y())
msg = latLon2Ups(pt4326.y(), pt4326.x(), settings.captureUpsPrecision, settings.captureUpsFormat)
if msg == '':
msg = None
elif self.settings.captureProjIsGeohash():
# Make sure the coordinate is transformed to EPSG:4326
canvasCRS = self.canvas.mapSettings().destinationCrs()
if canvasCRS == epsg4326:
pt4326 = pt
else:
transform = QgsCoordinateTransform(canvasCRS, epsg4326, QgsProject.instance())
pt4326 = transform.transform(pt.x(), pt.y())
msg = geohash.encode(pt4326.y(), pt4326.x(), settings.captureGeohashPrecision)
if msg == '':
msg = None
elif self.settings.captureProjIsH3():
# Make sure the coordinate is transformed to EPSG:4326
canvasCRS = self.canvas.mapSettings().destinationCrs()
if canvasCRS == epsg4326:
pt4326 = pt
else:
transform = QgsCoordinateTransform(canvasCRS, epsg4326, QgsProject.instance())
pt4326 = transform.transform(pt.x(), pt.y())
if H3_INSTALLED:
msg = h3.geo_to_h3(pt4326.y(), pt4326.x(), settings.captureH3Precision)
if msg == 0:
msg = None
else:
msg = None
elif self.settings.captureProjIsMaidenhead():
# Make sure the coordinate is transformed to EPSG:4326
canvasCRS = self.canvas.mapSettings().destinationCrs()
if canvasCRS == epsg4326:
pt4326 = pt
else:
transform = QgsCoordinateTransform(canvasCRS, epsg4326, QgsProject.instance())
pt4326 = transform.transform(pt.x(), pt.y())
try:
msg = maidenhead.toMaiden(pt4326.y(), pt4326.x(), precision=settings.captureMaidenheadPrecision)
except Exception:
msg = None
elif self.settings.captureProjIsGEOREF():
# Make sure the coordinate is transformed to EPSG:4326
canvasCRS = self.canvas.mapSettings().destinationCrs()
if canvasCRS == epsg4326:
pt4326 = pt
else:
transform = QgsCoordinateTransform(canvasCRS, epsg4326, QgsProject.instance())
pt4326 = transform.transform(pt.x(), pt.y())
try:
msg = georef.encode(pt4326.y(), pt4326.x(), settings.captureGeorefPrecision)
except Exception:
msg = None
if msg is None:
return(None)
else:
msg = '{}{}{}'.format(self.settings.capturePrefix, msg, self.settings.captureSuffix)
return msg
def canvasMoveEvent(self, event):
'''Capture the coordinate as the user moves the mouse over
the canvas. Show it in the status bar.'''
pt = self.snappoint(event.originalPixelPoint()) # input is QPoint
try:
msg = self.formatCoord(pt, ', ')
formatString = self.coordFormatString()
if msg is None:
self.iface.statusBarIface().showMessage("{} - {}".format(formatString, tr('Out of bounds')), 4000)
else:
self.iface.statusBarIface().showMessage("{} - {}".format(msg, formatString), 4000)
except Exception:
self.iface.statusBarIface().showMessage("")
def snappoint(self, qpoint):
match = self.canvas.snappingUtils().snapToMap(qpoint)
if match.isValid():
if self.vertex is None:
self.vertex = QgsVertexMarker(self.canvas)
self.vertex.setIconSize(12)
self.vertex.setPenWidth(2)
self.vertex.setColor(self.snapcolor)
self.vertex.setIconType(QgsVertexMarker.ICON_BOX)
self.vertex.setCenter(match.point())
return (match.point()) # Returns QgsPointXY
else:
self.removeVertexMarker()
return self.toMapCoordinates(qpoint) # QPoint input, returns QgsPointXY
def coordFormatString(self):
if self.settings.captureProjIsWgs84():
if self.settings.wgs84NumberFormat == self.settings.Wgs84TypeDecimal:
if self.settings.coordOrder == CoordOrder.OrderYX:
s = 'Lat Lon'
else:
s = 'Lon Lat'
elif self.settings.wgs84NumberFormat == self.settings.Wgs84TypeWKT:
s = 'WKT'
elif self.settings.wgs84NumberFormat == self.settings.Wgs84TypeGeoJSON:
s = 'GeoJSON'
elif self.settings.wgs84NumberFormat == self.settings.Wgs84TypeDMM:
s= 'DM.MM'
else:
s = 'DMS'
elif self.settings.captureProjIsProjectCRS():
crsID = self.canvas.mapSettings().destinationCrs().authid()
if self.settings.otherNumberFormat == 0: # Numerical
if self.settings.coordOrder == CoordOrder.OrderYX:
s = '{} - Y,X'.format(crsID)
else:
s = '{} - X,Y'.format(crsID)
else: # WKT
s = 'WKT'
elif self.settings.captureProjIsMGRS():
s = 'MGRS'
elif self.settings.captureProjIsUTM():
s = 'Standard UTM'
elif self.settings.captureProjIsUPS():
s = 'UPS'
elif self.settings.captureProjIsPlusCodes():
s = 'Plus Codes'
elif self.settings.captureProjIsGeohash():
s = 'Geohash'
elif self.settings.captureProjIsH3():
s = 'H3'
elif self.settings.captureProjIsMaidenhead():
s = 'Maidenhead Grid Locator'
elif self.settings.captureProjIsGEOREF():
s = 'GEOREF'
elif self.settings.captureProjIsCustomCRS():
if self.settings.otherNumberFormat == 0: # Numerical
if self.settings.coordOrder == CoordOrder.OrderYX:
s = '{} - Y,X'.format(self.settings.captureCustomCRSID())
else:
s = '{} - X,Y'.format(self.settings.captureCustomCRSID())
else: # WKT
s = 'WKT'
else: # Should never happen
s = ''
return s
def canvasReleaseEvent(self, event):
'''Capture the coordinate when the mouse button has been released,
format it, and copy it to the clipboard. pt is QgsPointXY'''
pt = self.snappoint(event.originalPixelPoint())
self.removeVertexMarker()
if settings.captureShowLocation:
if self.marker is None:
self.marker = QgsVertexMarker(self.canvas)
self.marker.setIconSize(18)
self.marker.setPenWidth(2)
self.marker.setIconType(QgsVertexMarker.ICON_CROSS)
self.marker.setCenter(pt)
else:
self.removeMarker()
try:
msg = self.formatCoord(pt, self.settings.delimiter)
formatString = self.coordFormatString()
if msg is not None:
clipboard = QApplication.clipboard()
clipboard.setText(msg)
self.iface.messageBar().pushMessage("", "{} {} {} {}".format(formatString, tr('coordinate'), msg, tr('copied to the clipboard')), level=Qgis.Info, duration=3)
except Exception as e:
self.iface.messageBar().pushMessage("", "{} {}".format(tr('Invalid coordinate:'), e), level=Qgis.Warning, duration=3)
def removeMarker(self):
if self.marker is not None:
self.canvas.scene().removeItem(self.marker)
self.marker = None
def removeVertexMarker(self):
if self.vertex is not None:
self.canvas.scene().removeItem(self.vertex)
self.vertex = None