322 lines
13 KiB
Python
322 lines
13 KiB
Python
import math
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import os
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import shutil
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import tomli
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import ezdxf
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from osgeo import gdal
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import numpy as np
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import pandas as pd
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from pw import DFile, ControlFile
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import dem_utils
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class Dem:
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def __init__(self, toml_path):
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with open(toml_path, "rb") as tf:
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toml_dict = tomli.load(tf)
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self._toml_dict = toml_dict
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dem_file_path = toml_dict["parameter"]["dem_file_path"]
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self._tree_height = toml_dict["parameter"]["tree_height"]
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self._dataset = gdal.Open(dem_file_path)
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self._dem_resolution = self._dataset.GetGeoTransform()[1]
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def get_dem_info(self, if_print=False):
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"""Get the information of DEM data.
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Parameters:
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dem_data <osgeo.gdal.Dataset> -- The data of DEM.
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if_print <bool> -- If print the information of DEM. Default is False (not print).
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Return:
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... <...> -- The information and parameters of DEM.
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"""
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dem_data = self._dataset
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dem_row = dem_data.RasterYSize # height
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dem_col = dem_data.RasterXSize # width
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dem_band = dem_data.RasterCount
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dem_gt = dem_data.GetGeoTransform()
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dem_proj = dem_data.GetProjection()
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if if_print:
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print("\nThe information of DEM:")
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print("The number of row (height) is: %d" % dem_row)
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print("The number of column (width) is: %d" % dem_col)
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print("The number of band is: %d" % dem_band)
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print("The 6 GeoTransform parameters are:\n", dem_gt)
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print("The GCS/PCS information is:\n", dem_proj)
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return dem_row, dem_col, dem_band, dem_gt, dem_proj
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def write_dxf(self):
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excel_pfs = self._read_path_file()
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segments = []
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for foo in range(len(excel_pfs) - 1):
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start_point_name: str = excel_pfs.iloc[foo, 0]
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end_point_name: str = excel_pfs.iloc[foo + 1, 0]
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point_x_s = float(excel_pfs.iloc[foo, 1])
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point_y_s = float(excel_pfs.iloc[foo, 2])
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point_x_e = float(excel_pfs.iloc[foo + 1, 1])
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point_y_e = float(excel_pfs.iloc[foo + 1, 2])
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line_coordination = self.to_line_coordination(
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point_x_s, point_y_s, point_x_e, point_y_e
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)
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left_elevation = self.get_elevation(line_coordination[:, 0:2])
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center_elevation = self.get_elevation(line_coordination[:, 2:4])
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right_elevation = self.get_elevation(line_coordination[:, 4:6])
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dm_doc = ezdxf.new(dxfversion="R2004")
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# 设置线形
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# for name, desc, pattern in linetypes():
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# if name not in dm_doc.linetypes:
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# dm_doc.linetypes.add(
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# name=name,
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# pattern=pattern,
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# description=desc,
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# )
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dm_msp = dm_doc.modelspace()
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x_axis = [0]
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cord_0 = line_coordination[0, 2:4] # 取中线的
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for cord in line_coordination[1:, 2:4]:
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x_axis.append(dem_utils.distance(cord, cord_0))
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dm_msp.add_polyline2d(
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[
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(x_axis[i] / 5, left_elevation[i] * 2)
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for i in range(len(left_elevation))
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],
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dxfattribs={"color": 1},
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) # 红色
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dm_msp.add_polyline2d(
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[
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(x_axis[i] / 5, center_elevation[i] * 2)
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for i in range(len(center_elevation))
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]
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)
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dm_msp.add_polyline2d(
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[
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(x_axis[i] / 5, right_elevation[i] * 2)
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for i in range(len(right_elevation))
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],
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dxfattribs={"color": 5},
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) # 蓝色
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# 树的线
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if self._tree_height > 0:
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dm_msp.add_polyline2d(
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[
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(x_axis[i] / 5, (center_elevation[i] + self._tree_height) * 2)
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for i in range(len(center_elevation))
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]
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)
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toml_dict = self._toml_dict
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out_dxf_file_dir = toml_dict["parameter"]["out_dxf_file_dir"]
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os.makedirs(out_dxf_file_dir, exist_ok=True)
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# dm_doc.saveas(
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# f"{out_dxf_file_dir}/D{400+int(start_point_name[1:])}.dxf"
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# ) # 写断面文件
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ezdxf.options.set(
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"odafc-addon",
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"win_exec_path",
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"d:/ProgramFiles/ODAFileConverter/ODAFileConverter.exe",
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)
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from ezdxf.addons.odafc import export_dwg
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export_dwg(
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dm_doc,
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f"{out_dxf_file_dir}/D{100+int(start_point_name[1:])}.dwg",
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replace=True,
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) # 写断面文件
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# 写Z文件
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with open(
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f"{out_dxf_file_dir}/ZD{100+int(start_point_name[1:])}", "w"
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) as z_file:
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z_file.write("0 ")
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z_file.write(f"{center_elevation[0]*2} ")
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z_file.write("0 ")
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z_file.write("0 ")
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z_file.write(f"{center_elevation[0]*2-50}")
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# TODO:写平面文件
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# plate_doc = ezdxf.new(dxfversion="R2010")
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# plate_msp = plate_doc.modelspace()
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# plate_msp.add_polyline2d(
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# line_coordination[:, 0:2],
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# dxfattribs={"color": 1},
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# ) # 红色
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# plate_msp.add_polyline2d(
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# line_coordination[:, 2:4],
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# )
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# plate_msp.add_polyline2d(
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# line_coordination[:, 4:6],
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# dxfattribs={"color": 5},
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# ) # 蓝色
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# plate_doc.saveas(f"{out_dxf_file_dir}/plate.dxf")
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mileage = [0]
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start_point = line_coordination[0, 2:4]
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for bar in line_coordination[1:, 2:4]:
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mileage.append(round(dem_utils.distance(start_point, bar)))
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mileage = np.array(mileage)
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start_num = 4000 + int(start_point_name[1:])
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segments.append(start_num)
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end_num = 4000 + int(end_point_name[1:])
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if foo == len(excel_pfs) - 2:
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segments.append(end_num)
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d_file = DFile(
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start_num,
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end_num,
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mileage,
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center_elevation,
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left_elevation,
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right_elevation,
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self._tree_height
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)
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d_file.save(out_dxf_file_dir)
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self._copy_db_file()
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tower_start_num = toml_dict["parameter"]["tower_number_start"]
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control_file_template_path = toml_dict["parameter"][
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"control_file_template_path"
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]
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c_file = ControlFile(
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segments, tower_start_num, control_file_template_path, out_dxf_file_dir
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)
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c_file.save()
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def get_elevation(self, site_x_y):
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"""Get the elevation of given locations from DEM in GCS.
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Parameters:
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dem_gcs <osgeo.gdal.Dataset> -- The input DEM (in GCS).
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site_latlng <numpy.ndarray> -- The latitude and longitude of given locations.
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Return:
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site_ele <numpy.ndarray> -- The elevation and other information of given locations.
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"""
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gdal_data = self._dataset
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# gdal_band = gdal_data.GetRasterBand(1)
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# nodataval = gdal_band.GetNoDataValue()
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# if np.any(gdal_array == nodataval):
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# gdal_array[gdal_array == nodataval] = np.nan
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gt = gdal_data.GetGeoTransform()
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# print("\nThe 6 GeoTransform parameters of DEM are:\n", gt)
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N_site = site_x_y.shape[0]
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Xgeo = site_x_y[:, 0]
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Ygeo = site_x_y[:, 1]
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site_ele = np.zeros(N_site)
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for i in range(N_site):
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# Note:
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# Xgeo = gt[0] + Xpixel * gt[1] + Yline * gt[2]
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# Ygeo = gt[3] + Xpixel * gt[4] + Yline * gt[5]
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#
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# Xpixel - Pixel/column of DEM
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# Yline - Line/row of DEM
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#
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# Xgeo - Longitude
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# Ygeo - Latitude
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#
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# [0] = Longitude of left-top pixel
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# [3] = Latitude of left-top pixel
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#
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# [1] = + Pixel width
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# [5] = - Pixel height
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#
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# [2] = 0 for north up DEM
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# [4] = 0 for north up DEM
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Xpixel = (Xgeo[i] - gt[0]) / gt[1]
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Yline = (Ygeo[i] - gt[3]) / gt[5]
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# 寻找左上，左下，右上，右下4个点
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lu_xy = np.array([math.floor(Xpixel), math.floor(Yline)]) # 左上
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ld_xy = np.array([math.floor(Xpixel), math.ceil(Yline)]) # 左下
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ru_xy = np.array([math.ceil(Xpixel), math.floor(Yline)]) # 右上
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rd_xy = np.array([math.ceil(Xpixel), math.ceil(Yline)]) # 右下
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lu_elevation = gdal_data.ReadAsArray(
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int(lu_xy[0]), int(lu_xy[1]), 1, 1
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).astype(float)
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ld_elevation = gdal_data.ReadAsArray(
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int(ld_xy[0]), int(ld_xy[1]), 1, 1
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).astype(float)
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ru_elevation = gdal_data.ReadAsArray(
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int(ru_xy[0]), int(ru_xy[1]), 1, 1
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).astype(float)
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rd_elevation = gdal_data.ReadAsArray(
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int(rd_xy[0]), int(rd_xy[1]), 1, 1
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).astype(float)
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# delta_x = (Xpixel - ld_xy[0]) / 1 # 距离是1
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# delta_y = (ld_xy[1]-Yline) / 1
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# site_ele[i] = (
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# ld_elevation
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# + (lu_elevation - ld_elevation) * delta_y
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# + (rd_elevation - ld_elevation) * delta_x
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# + (ld_elevation - lu_elevation + ru_elevation - rd_elevation)
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# * delta_x
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# * delta_y
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# )
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# 通过空间平面方程拟合Z值 参考《数字高程模型教程》 汤国安，李发源，刘学军编著 p89
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equation_a = np.array(
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[
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[lu_xy[0], lu_xy[0] * lu_xy[1], lu_xy[1], 1],
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[ld_xy[0], ld_xy[0] * ld_xy[1], ld_xy[1], 1],
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[ru_xy[0], ru_xy[0] * ru_xy[1], ru_xy[1], 1],
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[rd_xy[0], rd_xy[0] * rd_xy[1], rd_xy[1], 1],
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]
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)
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equation_b = np.array(
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[lu_elevation[0], ld_elevation[0], ru_elevation[0], rd_elevation[0]]
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)
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equation_c = np.linalg.solve(equation_a, equation_b)
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point_z = (
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Xpixel * equation_c[0]
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+ equation_c[1] * Xpixel * Yline
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+ equation_c[2] * Yline
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+ equation_c[3]
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)
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site_ele[i] = point_z
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# print(f"row:{Yline} col:{Xpixel} elev:{site_ele[i]}")
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return site_ele
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def to_line_coordination(self, point_x_s, point_y_s, point_x_e, point_y_e):
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path_length = (
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(point_x_s - point_x_e) ** 2 + (point_y_s - point_y_e) ** 2
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) ** 0.5
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dem_resolution = self._dem_resolution # dem的精度
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n = round(path_length / dem_resolution)
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center_point_x = np.linspace(point_x_s, point_x_e, n, endpoint=True)
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center_point_y = np.linspace(point_y_s, point_y_e, n, endpoint=True)
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# 计算左右边线
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# 计算角度
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toml_dict = self._toml_dict
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side_width = toml_dict["parameter"]["side_width"] # 边线宽度
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_line_angel = math.atan((point_y_e - point_y_s) / (point_x_e - point_x_s))
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if point_x_e < point_x_s:
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line_angel = _line_angel + math.pi / 2
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else:
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line_angel = _line_angel
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left_offset_x = side_width * math.cos(line_angel + math.pi / 2)
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left_offset_y = side_width * math.sin(line_angel + math.pi / 2)
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left_offset_point_x = center_point_x + left_offset_x
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left_offset_point_y = center_point_y + left_offset_y
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right_offset_point_x = center_point_x - left_offset_x # 向左偏移和向右偏移正好是相反的
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right_offset_point_y = center_point_y - left_offset_y
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r = np.array(
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[
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np.array(left_offset_point_x),
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np.array(left_offset_point_y),
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center_point_x,
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center_point_y,
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np.array(right_offset_point_x),
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np.array(right_offset_point_y),
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]
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).T
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return r
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def _read_path_file(self):
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toml_dict = self._toml_dict
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path_file = toml_dict["parameter"]["path_file"]
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excel_pds = pd.read_excel(path_file, header=None)
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return excel_pds
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def _copy_db_file(self):
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toml_dict = self._toml_dict
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db_file_dir = toml_dict["parameter"]["db_file_dir"]
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out_dxf_file_dir = toml_dict["parameter"]["out_dxf_file_dir"]
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shutil.copy(f"{db_file_dir}/Tower.db", f"{out_dxf_file_dir}/Tower.db")
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shutil.copy(f"{db_file_dir}/ATMOS.db", f"{out_dxf_file_dir}/ATMOS.db")
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shutil.copy(f"{db_file_dir}/Fit.db", f"{out_dxf_file_dir}/Fit.db")
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shutil.copy(f"{db_file_dir}/RULE.db", f"{out_dxf_file_dir}/RULE.db")
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shutil.copy(f"{db_file_dir}/WIRE.db", f"{out_dxf_file_dir}/WIRE.db")
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