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QRectangleCreator.py
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QRectangleCreator.py
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# -*- coding: utf-8 -*-
"""
/***************************************************************************
QRectangleCreator
A QGIS plugin
Plugin to create polygon
Generated by Plugin Builder: http://g-sherman.github.io/Qgis-Plugin-Builder/
-------------------
begin : 2019-05-16
git : https://github.com/abocianowski/QRectangleCreator
copyright : (C) 2019 by Adrian Bocianowski
email : [email protected]
***************************************************************************/
/***************************************************************************
* *
* 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 .resources import *
from PyQt5.QtCore import QSettings, QTranslator, qVersion, QCoreApplication, QPoint
from PyQt5.QtGui import QIcon, QColor
from PyQt5.QtWidgets import QAction, QToolButton,QMenu
from PyQt5 import uic
from PyQt5 import QtWidgets
from qgis.gui import QgsMapToolEmitPoint, QgsRubberBand, QgsMapCanvas, QgsVertexMarker
from qgis.core import QgsWkbTypes,QgsPoint, QgsGeometry, QgsPointXY, QgsPointLocator, QgsFeature, QgsCoordinateTransform, QgsCoordinateReferenceSystem, QgsProject
import math
from pyproj import Proj, transform
import os
class QRectangleCreator:
def __init__(self, iface):
self.iface = iface
self.plugin_dir = os.path.dirname(__file__)
locale = QSettings().value('locale/userLocale')[0:2]
locale_path = os.path.join(
self.plugin_dir,
'i18n',
'qrectanglecreator_{}.qm'.format(locale))
if os.path.exists(locale_path):
self.translator = QTranslator()
self.translator.load(locale_path)
if qVersion() > '4.3.3':
QCoreApplication.installTranslator(self.translator)
self.actions = []
self.menu = self.tr(u'&QRectangleCreator')
self.toolsToolbar = self.iface.addToolBar(u'QRectangle Creator')
self.toolsToolbar.setObjectName(u'QRectangle Creator')
self.settingsDlg = SettingsDialog()
self.settingsDlg.width.valueChanged.connect(self.settingsChanged)
self.settingsDlg.height.valueChanged.connect(self.settingsChanged)
self.settingsDlg.angle.valueChanged.connect(self.settingsChanged)
self.first_start = None
def tr(self, message):
return QCoreApplication.translate('QRectangleCreator', message)
def add_action(
self,
icon_path,
text,
callback,
enabled_flag=True,
add_to_menu=True,
add_to_toolbar=True,
status_tip=None,
whats_this=None,
parent=None,
checkable=False,
checked=False,
shortcut=None):
icon = QIcon(icon_path)
action = QAction(icon, text, parent)
action.triggered.connect(callback)
action.setEnabled(enabled_flag)
if status_tip is not None:
action.setStatusTip(status_tip)
if whats_this is not None:
action.setWhatsThis(whats_this)
if add_to_toolbar:
self.toolsToolbar.addAction(action)
if add_to_menu:
self.iface.addPluginToMenu(
self.menu,
action)
if checkable:
action.setCheckable(True)
if checked:
action.setChecked(1)
if shortcut:
action.setShortcut(shortcut)
self.actions.append(action)
return action
def initGui(self):
icon_path = ':/plugins/QRectangleCreator/icons/'
#LoginButton
self.mainButton = QToolButton()
self.mainButton.setIcon(QIcon(icon_path + 'addRectangle.png'))
self.mainButton.setPopupMode(QToolButton.MenuButtonPopup)
self.mainButton.clicked.connect(self.run)
self.mainButton.setToolTip('Add Rectangle')
self.mainButton.setEnabled(True)
self.mainButton.setCheckable(True)
self.mainButton.setMenu(QMenu())
self.toolsToolbar.addWidget(self.mainButton)
#SettingsButton
self.SettingsButton = self.add_action(
icon_path + 'addRectangle.png',
text=self.tr(u'Settings'),
callback=self.settings,
parent=self.iface.mainWindow(),
add_to_menu=False,
enabled_flag = False,
add_to_toolbar = False)
m = self.mainButton.menu()
m.addAction(self.SettingsButton)
self.first_start = True
def unload(self):
for action in self.actions:
self.iface.removePluginMenu(
self.tr(u'&QRectangleCreator'),
action)
self.iface.removeToolBarIcon(action)
def run(self):
if self.first_start == True:
self.first_start = False
if self.mainButton.isChecked()==1:
self.drawingObject = StartDrawing(self.iface.mapCanvas(),self.iface)
self.drawingObject.setConfiguration(
self.settingsDlg.width.value(),
self.settingsDlg.height.value(),
self.settingsDlg.angle.value())
self.iface.mapCanvas().setMapTool(self.drawingObject)
self.SettingsButton.setEnabled(True)
else:
self.iface.mapCanvas().unsetMapTool(self.drawingObject)
self.drawingObject.reset()
self.SettingsButton.setEnabled(False)
def settings(self):
self.settingsDlg.show()
current_width = self.settingsDlg.width.value()
current_height = self.settingsDlg.height.value()
current_angle = self.settingsDlg.angle.value()
if self.settingsDlg.exec_() != 1:
self.settingsDlg.width.setValue(current_width)
self.settingsDlg.height.setValue(current_height)
self.settingsDlg.angle.setValue(current_angle)
def settingsChanged(self):
self.drawingObject.setConfiguration(
self.settingsDlg.width.value(),
self.settingsDlg.height.value(),
self.settingsDlg.angle.value())
class StartDrawing(QgsMapToolEmitPoint):
def __init__(self, canvas, iface):
QgsMapToolEmitPoint.__init__(self, canvas)
# qgis interface
self.canvas = canvas
self.iface = iface
# snap marker
self.snap_mark = QgsVertexMarker(self.canvas)
self.snap_mark.setColor(QColor(0, 0, 255))
self.snap_mark.setPenWidth(2)
self.snap_mark.setIconType(QgsVertexMarker.ICON_BOX)
self.snap_mark.setIconSize(10)
# rectangle
self.rubberBand = QgsRubberBand(self.canvas, QgsWkbTypes.GeometryType(3))
self.rubberBand.setWidth(3)
self.rubberBand.setStrokeColor(QColor(254,0,0))
# initialize variable
self.rubberBand_width = 0
self.rubberBand_height = 0
self.rubberBand_angle = 0
self.reset()
def setConfiguration(self,width,height,angle):
self.rubberBand_width = width
self.rubberBand_height = height
self.rubberBand_angle = angle
def reset(self):
self.rubberBand.reset(QgsWkbTypes.GeometryType(3))
self.isEmittingPoint = False
def canvasMoveEvent( self, e ):
self.snap_mark.hide()
self.snapPoint = False
self.rubberBand.reset(QgsWkbTypes.GeometryType(3))
self.snapPoint = self.checkSnapToPoint(e.pos())
if self.snapPoint[0]:
self.snap_mark.setCenter(self.snapPoint[1])
self.snap_mark.show()
self.rectangle = self.getRectangle(self.snapPoint[1])
self.rubberBand.setToGeometry(self.rectangle, None)
self.rubberBand.show()
else:
self.rectangle = self.getRectangle(self.toMapCoordinates(e.pos()))
self.rubberBand.setToGeometry(self.rectangle, None)
self.rubberBand.show()
def checkSnapToPoint(self, point):
snapped = False
snap_point = self.toMapCoordinates(point)
snapper = self.canvas.snappingUtils()
snapMatch = snapper.snapToMap(point)
if snapMatch.hasVertex():
snap_point = snapMatch.point()
snapped = True
return snapped, snap_point
def canvasPressEvent(self, e):
if self.snapPoint == False:
point = self.toMapCoordinates(self.canvas.mouseLastXY())
else:
point = self.snapPoint[1]
layer = self.iface.activeLayer()
layer_crs = layer.crs().authid()
layer_crs = QgsCoordinateReferenceSystem(layer_crs)
canvas_crs = self.canvas.mapSettings().destinationCrs().authid()
canvas_crs = QgsCoordinateReferenceSystem(canvas_crs)
crs2crs = QgsCoordinateTransform(canvas_crs, layer_crs, QgsProject.instance())
feature = QgsFeature()
fields = layer.fields()
feature.setFields(fields)
if layer.wkbType() == QgsWkbTypes.Polygon or layer.wkbType() == QgsWkbTypes.MultiPolygon :
if layer_crs == canvas_crs:
feature.setGeometry( self.rectangle)
else:
geom = self.rectangle
geom.transform(crs2crs)
feature.setGeometry( geom)
layer.startEditing()
layer.addFeature(feature)
layer.commitChanges()
layer.reload()
else:
self.iface.messageBar().pushCritical ('QRectangle Creator: ','The current layer is not of Polygon or MultiPolygon type. The object has not been added')
def getRectangle(self,point):
polygon = QgsWkbTypes.GeometryType(3)
x = point.x()
y = point.y()
points = [[
QgsPointXY( # Left Top corner
x - (self.rubberBand_width/2),
y + (self.rubberBand_height/2)
),
QgsPointXY( # Right Top corner
x + (self.rubberBand_width/2),
y + (self.rubberBand_height/2)
),
QgsPointXY( # Right Down corner
x + (self.rubberBand_width/2),
y - (self.rubberBand_height/2)
),
QgsPointXY( # Left Down corner
x - (self.rubberBand_width/2),
y - (self.rubberBand_height/2)
)
]]
polygon = QgsGeometry.fromPolygonXY(points)
polygon.rotate(self.rubberBand_angle,point)
return polygon
FORM_CLASS, _ = uic.loadUiType(os.path.join(os.path.dirname(__file__), 'settings.ui'))
class SettingsDialog(QtWidgets.QDialog, FORM_CLASS):
def __init__(self, parent=None):
super(SettingsDialog, self).__init__(parent)
self.setupUi(self)