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BestFitPlaneTool.py
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BestFitPlaneTool.py
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"""
/***************************************************************************
qgSurf - plugin for Quantum GIS
Processing of geological planes and surfaces
-------------------
begin : 2011-12-21
copyright : (C) 2011-2019 by Mauro Alberti
email : alberti.m65@gmail.com
***************************************************************************/
# licensed under the terms of GNU GPL 3
/***************************************************************************
* *
* 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 3 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
"""
# The "delete_selected_records" method
# contains code modified from (chp. 15) assetmanager.pyw by Summerfield
#!/usr/bin/env python
# Copyright (c) 2007-8 Qtrac Ltd. All rights reserved.
# This program or module 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
# version 3 of the License, or (at your option) any later version. It is
# provided for educational purposes and is distributed in the hope that
# it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
# the GNU General Public License for more details.
# -*- coding: utf-8 -*-
from __future__ import absolute_import
import os
from datetime import datetime as dt
import sqlite3
try:
from osgeo import ogr
except ImportError:
import ogr
from qgis.PyQt.QtCore import *
from qgis.PyQt.QtGui import *
from qgis.PyQt.QtWidgets import *
from qgis.PyQt.QtSql import *
from PyQt5.QtSql import QSqlDatabase
from qgis.PyQt.uic import loadUi
from qgis.core import *
from qgis.gui import *
from .config.general_params import *
from .db_queries.queries import *
from .config.minor_params import *
from .messages.msgs import *
from .pygsf.libs_utils.qt.filesystem import define_path_new_file, old_file_path
from .pygsf.libs_utils.qt.databases import try_connect_to_sqlite3_db_with_qt, get_selected_recs_ids
from .pygsf.libs_utils.gdal.ogr import shapefile_create, try_write_point_shapefile, try_write_line_shapefile
from .pygsf.libs_utils.gdal.gdal import try_read_raster_band
from .pygsf.libs_utils.qgis.qgs_tools import *
from .pygsf.libs_utils.mpl.mpl_widget import MplWidget
from .pygsf.spatial.rasters.geoarray import GeoArray
from .pygsf.orientations.orientations import *
from .pygsf.mathematics.arrays import xyzSvd
from .pygsf.libs_utils.yaml.io import read_yaml
from .pygsf.libs_utils.sqlite.sqlite3 import try_create_db_tables, try_execute_query_with_sqlite3
from .pygsf.libs_utils.qt.databases import try_execute_query_with_qt
bfp_texts_flnm = "texts.yaml"
bfp_params_flnm = "parameters.yaml"
plugin_folder = os.path.dirname(__file__)
config_fldrpth = os.path.join(
plugin_folder,
config_fldr)
def get_field_dict(key_val, flds_dicts):
filt_dicts = list(filter(lambda dct: key_val in dct.keys(), flds_dicts))
if len(filt_dicts) == 1:
return filt_dicts[0][key_val]
else:
return None
def parse_db_params(sqlite_params):
tables = sqlite_params["tables"]
solutions_pars = tables["solutions"]
src_points_pars = tables["src_pts"]
solutions_tbl_nm = solutions_pars["name"]
solutions_tbl_flds = solutions_pars["fields"]
src_points_tbl_nm = src_points_pars["name"]
src_points_tbl_flds = src_points_pars["fields"]
return (
solutions_tbl_nm,
solutions_tbl_flds,
src_points_tbl_nm,
src_points_tbl_flds)
def get_out_shape_params(geom_type="point"):
output_shapefile_params_file = os.path.join(
config_fldrpth,
output_shapefile_params_flnm)
plugin_params = read_yaml(output_shapefile_params_file)
if geom_type == "point":
return plugin_params["pt_shapefile"]
elif geom_type == "line":
return plugin_params["ln_shapefile"]
else:
return None
def try_xprt_selected_records_to_pt_shapefile(point_shapefile_path: str, solutions: List[Tuple]):
try:
shape_pars = get_out_shape_params("point")
fld_nms = list(map(lambda par: par["name"], shape_pars))
success, msg = try_write_point_shapefile(
path=point_shapefile_path,
field_names=fld_nms,
values=solutions,
ndx_x_val=ndx_x_val)
if success:
return True, "Results saved in shapefile.<br />Now you can load it"
else:
return False, msg
except Exception as e:
return False, str(e)
def try_xprt_selected_records_to_ln_shapefile(line_shapefile_path: str, id_vals_xyzs: Dict):
try:
shape_pars = get_out_shape_params("line")
fld_nms = list(map(lambda par: par["name"], shape_pars))
success, msg = try_write_line_shapefile(
path=line_shapefile_path,
field_names=fld_nms,
values=id_vals_xyzs)
if success:
return True, "Results saved in shapefile.<br />Now you can load it"
else:
return False, msg
except Exception as e:
return False, str(e)
def remove_equal_consecutive_xypairs(xy_list):
out_xy_list = [xy_list[0]]
for n in range(1, len(xy_list)):
if not eq_xy_pair(xy_list[n], out_xy_list[-1]):
out_xy_list.append(xy_list[n])
return out_xy_list
def list3_to_list(list3):
"""
input: a list of list of (x,y) tuples
output: a list of (x,y) tuples
"""
out_list = []
for list2 in list3:
for list1 in list2:
out_list += list1
return out_list
class BestFitPlaneMainWidget(QWidget):
bfp_calc_update = pyqtSignal()
def __init__(self, tool_nm, canvas, plugin_qaction, db_tables_params):
super(BestFitPlaneMainWidget, self).__init__()
self.tool_nm = tool_nm
self.canvas, self.plugin = canvas, plugin_qaction
self.db_tables_params = db_tables_params
self.init_params()
self.setup_gui()
self.bfp_calc_update.connect(self.update_bfpcalc_btn_state)
self.db_tables_params = db_tables_params
def init_params(self):
bfp_text_config_flpth = os.path.join(
config_fldrpth,
bfp_texts_flnm)
texts_params = read_yaml(bfp_text_config_flpth)
self.dem_default_text = texts_params["layer_default_text"]
self.ptlnlyr_default_text = texts_params["ptlnlyr_default_text"]
bfp_num_config_flpth = os.path.join(
config_fldrpth,
bfp_params_flnm)
num_params = read_yaml(
file_pth=bfp_num_config_flpth
)
self.ciMaxPointsNumberForBFP = num_params["ciMaxPointsNumberForBFP"]
self.reset_dem_input_states()
self.previousTool = None
self.input_points = None
self.bestfitplane_point_markers = []
self.res_id = 0
self.bestfitplane_points = []
self.bestfitplane = None
self.sol_tbl_flds = None
self.selection_model = None
def reset_dem_input_states(self):
self.dem, self.grid = None, None
def setup_gui(self):
dialog_layout = QVBoxLayout()
self.main_widget = QTabWidget()
self.main_widget.addTab(self.setup_processing_tab(), "Processing")
self.main_widget.addTab(self.setup_configurations_tab(), "Configurations")
self.main_widget.addTab(self.setup_results_tab(), "Results")
self.main_widget.addTab(self.setup_help_tab(), "Help")
self.main_widget.currentChanged.connect(self.onTabChange)
dialog_layout.addWidget(self.main_widget)
self.setLayout(dialog_layout)
self.adjustSize()
self.setWindowTitle('{} - {}'.format(plugin_nm, self.tool_nm))
@pyqtSlot()
def onTabChange(self):
self.setup_results_tableview()
self.solutionsView.update()
def setup_processing_tab(self):
widget = QWidget()
layout = QVBoxLayout()
layout.addWidget(self.setup_source_dem())
layout.addWidget(self.setup_source_points())
layout.addWidget(self.setup_bfp_processing())
widget.setLayout(layout)
return widget
def setup_results_tab(self):
widget = QWidget()
layout = QVBoxLayout()
layout.addWidget(self.setup_results_processings())
widget.setLayout(layout)
return widget
def setup_configurations_tab(self):
widget = QWidget()
layout = QVBoxLayout()
layout.addWidget(self.setup_results_configurations())
widget.setLayout(layout)
return widget
def setup_help_tab(self):
qwdtHelp = QWidget()
qlytHelp = QVBoxLayout()
qtbrHelp = QTextBrowser(qwdtHelp)
url_path = "file:///{}/help/help_bfp.html".format(os.path.dirname(__file__))
qtbrHelp.setSource(QUrl(url_path))
qtbrHelp.setSearchPaths(['{}/help'.format(os.path.dirname(__file__))])
qlytHelp.addWidget(qtbrHelp)
qwdtHelp.setLayout(qlytHelp)
return qwdtHelp
def setup_results_tableview(self):
db_path = self.result_db_path_qle.text()
if db_path:
success, msg = try_connect_to_sqlite3_db_with_qt(db_path)
if not success:
QMessageBox.critical(
self,
self.tool_nm,
msg)
return
pars = parse_db_params(self.db_tables_params)
self.solutions_tblnm, self.sol_tbl_flds, self.pts_tbl_nm, self.pts_tbl_flds = pars
self.solutionsModel = QSqlTableModel(db=QSqlDatabase.database())
self.solutionsModel.setTable(self.solutions_tblnm)
self.solutionsModel.setHeaderData(ID_SOL, Qt.Horizontal, "id")
self.solutionsModel.setHeaderData(DIP_DIR, Qt.Horizontal, "dip direction")
self.solutionsModel.setHeaderData(DIP_ANG, Qt.Horizontal, "dip angle")
self.solutionsModel.setHeaderData(DATASET, Qt.Horizontal, "dataset")
self.solutionsModel.setHeaderData(NOTES, Qt.Horizontal, "notes")
self.solutionsModel.setHeaderData(SRC_CRS, Qt.Horizontal, "source crs")
self.solutionsModel.setHeaderData(CREAT_TIME, Qt.Horizontal, "created")
self.solutionsModel.select()
self.solutionsView.setModel(self.solutionsModel)
self.solutionsView.setSelectionMode(QTableView.MultiSelection)
self.solutionsView.setSelectionBehavior(QTableView.SelectRows)
self.solutionsView.verticalHeader().hide()
self.solutionsView.resizeColumnsToContents()
self.solutionsView.resizeRowsToContents()
self.solutionsView.setSortingEnabled(True)
self.selection_model = self.solutionsView.selectionModel()
def setup_results_processings(self):
self.results_widget = QWidget()
self.results_layout = QVBoxLayout()
plot_selected_recs = QPushButton("Plot selected records")
plot_selected_recs.clicked.connect(self.plot_selected_records)
self.results_layout.addWidget(plot_selected_recs)
delete_selected_recs = QPushButton("Delete selected records")
delete_selected_recs.clicked.connect(self.delete_selected_records)
self.results_layout.addWidget(delete_selected_recs)
xprt_selected_recs = QPushButton("Export selected records")
xprt_selected_recs.clicked.connect(self.xprt_selected_records)
self.results_layout.addWidget(xprt_selected_recs)
self.solutionsView = QTableView()
self.solutionsView.show()
self.results_layout.addWidget(self.solutionsView)
self.results_widget.setLayout(self.results_layout)
return self.results_widget
def setup_source_dem(self):
main_groupbox = QGroupBox(self.tr("Source DEM"))
main_layout = QGridLayout()
main_layout.addWidget(QLabel("DEM layer"), 0, 0, 1, 1)
self.define_dem_QComboBox = QComboBox()
self.define_dem_QComboBox.addItem(self.dem_default_text)
main_layout.addWidget(self.define_dem_QComboBox, 0, 1, 1, 2)
self.refresh_raster_layer_list()
QgsProject.instance().layerWasAdded.connect(self.refresh_raster_layer_list)
QgsProject.instance().layerRemoved.connect(self.refresh_raster_layer_list)
main_groupbox.setLayout(main_layout)
return main_groupbox
def setup_source_points(self):
main_groupbox = QGroupBox(self.tr("Source points"))
main_layout = QGridLayout()
self.bestfitplane_definepoints_pButton = QPushButton("Define source points in map (n >= 3)")
self.bestfitplane_definepoints_pButton.clicked.connect(self.bfp_inpoint_from_map_click)
main_layout.addWidget(self.bestfitplane_definepoints_pButton, 0, 0, 1, 2)
self.bestfitplane_getpointsfromlyr_pButton = QPushButton("Get source points from layer")
self.bestfitplane_getpointsfromlyr_pButton.clicked.connect(self.bfp_points_from_lyr)
main_layout.addWidget(self.bestfitplane_getpointsfromlyr_pButton, 1, 0, 1, 2)
self.bestfitplane_inpts_lyr_list_QComboBox = QComboBox()
main_layout.addWidget(self.bestfitplane_inpts_lyr_list_QComboBox, 2, 0, 1, 2)
self.bestfitplane_resetpoints_pButton = QPushButton("Reset source points")
self.bestfitplane_resetpoints_pButton.clicked.connect(self.bfp_reset_all_inpoints)
main_layout.addWidget(self.bestfitplane_resetpoints_pButton, 3, 0, 1, 2)
self.refresh_inpts_layer_list()
QgsProject.instance().layerWasAdded.connect(self.refresh_inpts_layer_list)
QgsProject.instance().layerRemoved.connect(self.refresh_inpts_layer_list)
self.bestfitplane_src_points_ListWdgt = QListWidget()
main_layout.addWidget(self.bestfitplane_src_points_ListWdgt, 4, 0, 1, 2)
self.enable_point_input_buttons(False)
main_groupbox.setLayout(main_layout)
return main_groupbox
def setup_bfp_processing(self):
main_groupbox = QGroupBox(self.tr("Best fit planes"))
layout = QGridLayout()
self.bestfitplane_calculate_pButton = QPushButton("Calculate best fit plane")
self.bestfitplane_calculate_pButton.clicked.connect(self.calculate_bestfitplane)
self.bestfitplane_calculate_pButton.setEnabled(False)
layout.addWidget(self.bestfitplane_calculate_pButton, 0, 0, 1, 2)
self.enable_point_input_buttons(False)
main_groupbox.setLayout(layout)
return main_groupbox
def setup_results_configurations(self):
group_box = QGroupBox(self.tr("Database for result storage (sqlite3)"))
layout = QGridLayout()
self.result_db_path_qle = QLineEdit()
layout.addWidget(self.result_db_path_qle, 0, 0, 1, 2)
self.open_existing_sqlite = QPushButton("Load existing database")
self.open_existing_sqlite.clicked.connect(self.find_existing_db)
layout.addWidget(self.open_existing_sqlite, 1, 0, 1, 2)
self.create_new_sqlite = QPushButton("Create result database")
self.create_new_sqlite.clicked.connect(self.create_result_db)
layout.addWidget(self.create_new_sqlite, 2, 0, 1, 2)
group_box.setLayout(layout)
return group_box
def view_in_stereonet(self):
"""
Plot plane solution in stereonet.
:return: None
"""
stereonet_dialog = SolutionStereonetDialog(
tool_nm=self.tool_nm,
plane=self.bestfitplane,
points=self.bestfitplane_points,
result_db_path=self.result_db_path_qle.text(),
db_tables_params=self.db_tables_params,
prj_crs=self.get_project_crs_long_descr())
stereonet_dialog.exec_()
def create_result_db(self):
db_path = define_path_new_file(
parent=self,
show_msg="Create sqlite3 db",
path=None,
filter_text="Database (*.sqlite3)")
if not db_path:
return
tables = self.db_tables_params["tables"]
solutions_pars = tables["solutions"]
src_points_pars = tables["src_pts"]
success, msg = try_create_db_tables(
db_path=db_path,
tables_pars=[
solutions_pars,
src_points_pars])
if success:
self.result_db_path_qle.setText(db_path)
self.setup_results_tableview()
QMessageBox.information(
self,
self.tool_nm,
"Result db created")
else:
QMessageBox.critical(
self,
self.tool_nm,
msg)
def find_existing_db(self):
def check_table_presence(table_nm):
check_query_str = check_query_template.format(
table_name=table_nm)
curs.execute(check_query_str)
return curs.fetchone()[0]
db_path = old_file_path(
parent=self,
show_msg="Open sqlite3 db",
filter_extension="sqlite3",
filter_text="Database (*.sqlite3)")
if not db_path:
return
pars = parse_db_params(self.db_tables_params)
sol_tbl_nm, sol_tbl_flds, pts_tbl_nm, pts_tbl_flds = pars
conn = sqlite3.connect(db_path)
curs = conn.cursor()
tables_to_check = [sol_tbl_nm, pts_tbl_nm]
tables_found = True
for table in tables_to_check:
if not check_table_presence(table):
QMessageBox.critical(
self,
self.tool_nm,
"Table {} not found in db {}".format(table, db_path)
)
tables_found = False
break
conn.close()
if tables_found:
self.result_db_path_qle.setText(db_path)
self.setup_results_tableview()
QMessageBox.information(
self,
self.tool_nm,
"Result db set")
def add_marker(self, prj_crs_x, prj_crs_y):
marker = self.create_marker(self.canvas, prj_crs_x, prj_crs_y)
self.bestfitplane_point_markers.append(marker)
self.canvas.refresh()
def set_bfp_input_point(self, qgs_pt, add_marker=True):
prj_crs_x, prj_crs_y = qgs_pt.x(), qgs_pt.y()
dem_crs_coord_x, dem_crs_coord_y = self.get_dem_crs_coords(prj_crs_x, prj_crs_y)
dem_z_value = self.geoarray.interpolate_bilinear(dem_crs_coord_x, dem_crs_coord_y)
if dem_z_value is None:
return
if add_marker:
self.add_marker(prj_crs_x, prj_crs_y)
lon, lat = qgs_project_xy(
x=prj_crs_x,
y=prj_crs_y,
srcCrs=self.get_project_crs())
curr_ndx = len(self.bestfitplane_points) + 1
self.bestfitplane_points.append([curr_ndx, prj_crs_x, prj_crs_y, dem_z_value, lon, lat])
self.bestfitplane_src_points_ListWdgt.addItem("%i: %.3f %.3f %.3f %.6f %.6f" % (curr_ndx, prj_crs_x, prj_crs_y, dem_z_value, lon, lat))
self.bfp_calc_update.emit()
def bfp_reset_all_inpoints(self):
self.reset_point_input_values()
self.bfp_calc_update.emit()
def bfp_inpoint_from_map_click(self):
try:
self.bestfitplane_PointMapTool.canvasClicked.disconnect(self.set_bfp_input_point)
except:
pass
self.bestfitplane_PointMapTool = PointMapToolEmitPoint(self.canvas, self.plugin) # mouse listener
self.previousTool = self.canvas.mapTool() # save the standard map tool for restoring it at the end
self.bestfitplane_PointMapTool.canvasClicked.connect(self.set_bfp_input_point)
self.bestfitplane_PointMapTool.setCursor(Qt.CrossCursor)
self.canvas.setMapTool(self.bestfitplane_PointMapTool)
def bfp_points_from_lyr(self):
# get vector layer
try:
assert self.bestfitplane_inpts_lyr_list_QComboBox.currentIndex() > 0
inpts_lyr_qgis_ndx = self.bestfitplane_inpts_lyr_list_QComboBox.currentIndex() - 1
inpts_lyr = self.inpts_Layers[inpts_lyr_qgis_ndx ]
except:
QMessageBox.critical(
self,
"Input point layer",
"Check chosen input layer")
return
# read xy tuples from layer (removed consecutive duplicates)
layer_geom_type = vector_type(inpts_lyr)
if layer_geom_type == 'point':
xypair_list = pt_geoms_attrs(inpts_lyr)
if not xypair_list:
QMessageBox.critical(
self,
"Input layer",
"Is chosen layer empty?")
return
elif layer_geom_type == 'line':
xypair_list3 = line_geoms_attrs(inpts_lyr)
if not xypair_list3:
QMessageBox.critical(
self,
"Input layer",
"Is chosen layer empty?")
return
xypair_list3_1 = [xypair_list02[0] for xypair_list02 in xypair_list3 ]
xypair_flatlist = list3_to_list(xypair_list3_1)
xypair_list = remove_equal_consecutive_xypairs(xypair_flatlist)
else:
raise VectorIOException("Geometry type of chosen layer is not point or line")
if len(xypair_list) > self.ciMaxPointsNumberForBFP:
QMessageBox.critical(
self,
"Input point layer",
"More than {} points to handle. Please use less features or modify value in config/parameters.yaml".format(self.ciMaxPointsNumberForBFP))
return
# for all xy tuples, project to project CRS as a qgis point
projectCrs = self.get_project_crs()
proj_crs_qgispoint_list = [qgs_project_point(qgs_point(x, y), inpts_lyr.crs(), projectCrs) for (x, y) in xypair_list]
# for all qgs points, process them for the input point processing queue
for qgs_pt in proj_crs_qgispoint_list:
self.set_bfp_input_point(qgs_pt, add_marker=False)
def reset_input_point_states(self):
self.reset_point_input_values()
self.disable_point_tools()
self.bfp_calc_update.emit()
def reset_point_input_values(self):
self.reset_point_markers()
self.reset_point_inputs()
def reset_point_inputs(self):
self.bestfitplane_src_points_ListWdgt.clear()
self.bestfitplane_points = []
self.bestfitplane = None
def reset_point_markers(self):
for mrk in self.bestfitplane_point_markers:
self.canvas.scene().removeItem(mrk)
self.bestfitplane_point_markers = []
def enable_point_input_buttons(self, choice = True):
self.bestfitplane_definepoints_pButton.setEnabled(choice)
self.bestfitplane_getpointsfromlyr_pButton.setEnabled(choice)
self.bestfitplane_inpts_lyr_list_QComboBox.setEnabled(choice)
self.bestfitplane_resetpoints_pButton.setEnabled(choice)
def disable_point_tools(self):
self.enable_point_input_buttons(False)
try:
self.bestfitplane_PointMapTool.leftClicked.disconnect(self.set_bfp_input_point)
except:
pass
try:
self.disable_MapTool(self.bestfitplane_PointMapTool)
except:
pass
def refresh_raster_layer_list(self):
self.reset_dem_input_states()
try:
self.define_dem_QComboBox.currentIndexChanged[int].disconnect(self.get_working_dem)
except:
pass
try:
self.reset_input_point_states()
except:
pass
try:
self.define_dem_QComboBox.clear()
except:
return
self.define_dem_QComboBox.addItem(self.dem_default_text)
self.rasterLayers = loaded_raster_layers()
if self.rasterLayers is None or len(self.rasterLayers) == 0:
return
for layer in self.rasterLayers:
self.define_dem_QComboBox.addItem(layer.name())
self.define_dem_QComboBox.currentIndexChanged[int].connect(self.get_working_dem)
def refresh_inpts_layer_list(self):
try:
self.bestfitplane_inpts_lyr_list_QComboBox.clear()
except:
return
self.bestfitplane_inpts_lyr_list_QComboBox.addItem(self.ptlnlyr_default_text)
self.inpts_Layers = loaded_point_layers() + loaded_line_layers()
if self.inpts_Layers is None or len(self.inpts_Layers) == 0:
return
for layer in self.inpts_Layers:
self.bestfitplane_inpts_lyr_list_QComboBox.addItem(layer.name())
def get_working_dem(self, ndx_DEM_file = 0):
self.reset_dem_input_states()
self.reset_input_point_states()
if self.rasterLayers is None or len(self.rasterLayers) == 0:
return
# no DEM layer defined
if ndx_DEM_file == 0:
return
self.dem = self.rasterLayers[ndx_DEM_file-1]
success, cnt = try_read_raster_band(self.dem.source())
if not success:
QMessageBox.critical(self, "DEM", cnt)
return
geotransform, projection, band_params, data = cnt
self.geoarray = GeoArray(
inGeotransform=geotransform,
inProjection=projection,
inLevels=[data]
)
self.enable_point_input_buttons()
def coords_within_dem_bndr(self, dem_crs_coord_x, dem_crs_coord_y):
if dem_crs_coord_x <= self.grid.xmin or dem_crs_coord_x >= self.grid.xmax or \
dem_crs_coord_y <= self.grid.ymin or dem_crs_coord_y >= self.grid.ymax:
return False
return True
def create_marker(self, canvas, prj_crs_x, prj_crs_y, pen_width= 2, icon_type = 2, icon_size = 18, icon_color = 'limegreen'):
marker = QgsVertexMarker(canvas)
marker.setIconType(icon_type)
marker.setIconSize(icon_size)
marker.setPenWidth(pen_width)
marker.setColor(QColor(icon_color))
marker.setCenter(QgsPointXY(prj_crs_x, prj_crs_y))
return marker
def update_bfpcalc_btn_state(self):
if self.bestfitplane_src_points_ListWdgt.count () >= 3:
state = True
else:
state = False
self.bestfitplane_calculate_pButton.setEnabled(state)
def calculate_bestfitplane(self):
x_ndx, y_ndx, z_ndx = 1, 2, 3
lfXyz = list(map(lambda idxyz: (idxyz[x_ndx], idxyz[y_ndx], idxyz[z_ndx]), self.bestfitplane_points))
npaXyz = np.array(lfXyz, dtype=np.float64)
self.xyz_mean = np.mean(npaXyz, axis=0)
svd = xyzSvd(npaXyz - self.xyz_mean)
if svd['result'] == None:
QMessageBox.critical(
self,
self.tool_nm,
"Unable to calculate result")
return
_, _, eigenvectors = svd['result']
lowest_eigenvector = eigenvectors[-1, : ] # Solution is last row
normal = lowest_eigenvector[: 3 ] / np.linalg.norm(lowest_eigenvector[: 3 ])
normal_vector = Vect(normal[0], normal[1], normal[2])
normal_direct = Direct.fromVect(normal_vector)
self.bestfitplane = normal_direct.normPlane()
self.view_in_stereonet()
def disable_points_definition(self):
self.enable_point_input_buttons(False)
self.disable_points_MapTool()
self.reset_point_markers()
self.bestfitplane_src_points_ListWdgt.clear()
def disable_MapTool(self, mapTool):
try:
if mapTool is not None: self.canvas.unsetMapTool(mapTool)
except:
pass
try:
if self.previousTool is not None: self.canvas.setMapTool(self.previousTool)
except:
pass
def disable_points_MapTool(self):
self.disable_MapTool(self.bestfitplane_PointMapTool)
def get_project_crs(self) -> QgsCoordinateReferenceSystem:
return self.canvas.mapSettings().destinationCrs()
def get_project_crs_authid(self) -> str:
return self.get_project_crs().authid()
def get_project_crs_descr(self) -> str:
return self.get_project_crs().description()
def get_project_crs_long_descr(self) -> str:
return "{} - {}".format(
self.get_project_crs_authid(),
self.get_project_crs_descr()
)
def project_coords(self, x, y, source_crs, dest_crs):
if source_crs != dest_crs:
dest_crs_qgs_pt = qgs_project_point(qgs_point(x, y), source_crs, dest_crs)
return dest_crs_qgs_pt.x(), dest_crs_qgs_pt.y()
else:
return x, y
def get_dem_crs_coords(self, x, y):
projectCrs = self.get_project_crs()
return self.project_coords(x, y, projectCrs, self.dem.crs())
def get_prj_crs_coords(self, x, y):
projectCrs = self.get_project_crs()
return self.project_coords(x, y, self.dem.crs(), projectCrs)
def plot_selected_records(self):
if not self.sol_tbl_flds:
QMessageBox.warning(
self,
self.tool_nm,
msg_database_missing
)
return
# get relevant fields names
id_alias = self.sol_tbl_flds[0]["id"]["name"]
dip_dir_alias = self.sol_tbl_flds[1]["dip_dir"]["name"]
dip_ang_alias = self.sol_tbl_flds[2]["dip_ang"]["name"]
# get selected records attitudes
selected_ids = get_selected_recs_ids(self.selection_model)
# create query string
if not selected_ids:
qry = query_solutions_all_template.format(
dip_dir_alias,
dip_ang_alias,
self.solutions_tblnm)
else:
selected_ids_string = ",".join(map(str, selected_ids))
qry = query_solutions_selection_template.format(
dip_dir_alias, dip_ang_alias, self.solutions_tblnm, id_alias, selected_ids_string)
# query the database
success, query_results = try_execute_query_with_qt(
query=qry)
if not success:
QMessageBox.critical(
self,
self.tool_nm,
query_results)
return
# get vals for selected records
planes = []
while query_results.next():
dip_dir = float(query_results.value(0))
dip_ang = float(query_results.value(1))
planes.append(Plane(dip_dir, dip_ang))
# plot in stereoplot
selected_recs_stereonet_dialog = SelectedSolutionsStereonetDialog(
tool_nm=self.tool_nm,
planes=planes,
parent=self)
selected_recs_stereonet_dialog.show()
selected_recs_stereonet_dialog.raise_()
selected_recs_stereonet_dialog.activateWindow()
def delete_selected_records(self):
if not self.selection_model:
QMessageBox.warning(
self,
self.tool_nm,
msg_database_missing
)
return