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ShpTransform.py
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ShpTransform.py
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# -*- coding: utf-8 -*-
try:
from osgeo import gdal
from osgeo import ogr
from osgeo import osr
except ImportError:
import gdal
import ogr
import osr
from shutil import copyfile
import os
from .CoordTransform import gcj02tobd09,bd09togcj02,wgs84togcj02,gcj02towgs84,wgs84tomercator,mercatortowgs84,bd09tomercator,mercatortobd09
# 写入shp文件,polygon
# coord_type,code_name, field_list, result_list
def polygon_transform(geom_polygon,coord_original,coord_target):
geom_type = geom_polygon.GetGeometryType()
z_value = ogr.GT_HasZ(geom_type)
# print(z_value)
geom_col_polygon = ogr.Geometry(ogr.wkbGeometryCollection)
geom_col_polygon.AddGeometry(geom_polygon)
geom_poly = geom_polygon
# print(geom_poly.GetGeometryCount())
geom_poly_o_count = geom_poly.GetGeometryCount()
for m in range(0,geom_poly_o_count):
geom_poly.RemoveGeometry(geom_poly_o_count-m-1)
# print('geom_poly')
# print(geom_poly)
# 获取polygon对象的边界
boundary_polygon = geom_col_polygon.GetGeometryRef(0).GetBoundary()
# print('boundary_polygon')
# print(boundary_polygon)
# 获取边界的数量，如果大于1，说明有孔洞
boundary_polygon_count = boundary_polygon.GetGeometryCount()
# print('boundary_polygon_count')
# print(boundary_polygon_count)
if boundary_polygon_count == 0:
boundary_polygon_point_count = boundary_polygon.GetPointCount()
ring = ogr.Geometry(ogr.wkbLinearRing)
for j in range(boundary_polygon_point_count):
point_polygon = boundary_polygon.GetPoint(j)
# 坐标系转换
if coord_original == 'gcj02' and coord_target == 'wgs84':
point_polygon_trans = gcj02towgs84(point_polygon[0], point_polygon[1])
elif coord_original == 'wgs84' and coord_target == 'gcj02':
point_polygon_trans = wgs84togcj02(point_polygon[0], point_polygon[1])
elif coord_original == 'gcj02' and coord_target == 'bd09':
point_polygon_trans = gcj02tobd09(point_polygon[0], point_polygon[1])
elif coord_original == 'bd09' and coord_target == 'gcj02':
point_polygon_trans = bd09togcj02(point_polygon[0], point_polygon[1])
elif coord_original == 'wgs84' and coord_target == 'bd09':
point_polygon_trans_gcj02 = wgs84togcj02(point_polygon[0], point_polygon[1])
point_polygon_trans = gcj02tobd09(point_polygon_trans_gcj02[0], point_polygon_trans_gcj02[1])
elif coord_original == 'bd09' and coord_target == 'wgs84':
point_polygon_trans_gcj02 = bd09togcj02(point_polygon[0], point_polygon[1])
point_polygon_trans = gcj02towgs84(point_polygon_trans_gcj02[0], point_polygon_trans_gcj02[1])
else:
point_polygon_trans = [point_polygon[0], point_polygon[1]]
# 添加坐标点
if z_value == 1:
ring.AddPoint(point_polygon_trans[0],point_polygon_trans[1],point_polygon[2])
else:
ring.AddPoint_2D(point_polygon_trans[0],point_polygon_trans[1])
geom_poly.AddGeometry(ring)
else:
for i in range(boundary_polygon_count):
boundary_polygon_ring = boundary_polygon.GetGeometryRef(i)
boundary_polygon_ring_point_count = boundary_polygon_ring.GetPointCount()
ring = ogr.Geometry(ogr.wkbLinearRing)
for j in range(0,boundary_polygon_ring_point_count):
point_polygon = boundary_polygon_ring.GetPoint(j)
# print('point_polygon')
# print(point_polygon)
# 坐标系转换
if coord_original == 'gcj02' and coord_target == 'wgs84':
point_polygon_trans = gcj02towgs84(point_polygon[0], point_polygon[1])
elif coord_original == 'wgs84' and coord_target == 'gcj02':
point_polygon_trans = wgs84togcj02(point_polygon[0], point_polygon[1])
elif coord_original == 'gcj02' and coord_target == 'bd09':
point_polygon_trans = gcj02tobd09(point_polygon[0], point_polygon[1])
elif coord_original == 'bd09' and coord_target == 'gcj02':
point_polygon_trans = bd09togcj02(point_polygon[0], point_polygon[1])
elif coord_original == 'wgs84' and coord_target == 'bd09':
point_polygon_trans_gcj02 = wgs84togcj02(point_polygon[0], point_polygon[1])
point_polygon_trans = gcj02tobd09(point_polygon_trans_gcj02[0], point_polygon_trans_gcj02[1])
elif coord_original == 'bd09' and coord_target == 'wgs84':
point_polygon_trans_gcj02 = bd09togcj02(point_polygon[0], point_polygon[1])
point_polygon_trans = gcj02towgs84(point_polygon_trans_gcj02[0], point_polygon_trans_gcj02[1])
else:
point_polygon_trans = [point_polygon[0], point_polygon[1]]
# 添加坐标点
if z_value == 1:
ring.AddPoint(point_polygon_trans[0], point_polygon_trans[1], point_polygon[2])
else:
ring.AddPoint_2D(point_polygon_trans[0], point_polygon_trans[1])
geom_poly.AddGeometry(ring)
return geom_poly
def multi_polygon_transform(geom_polygon,coord_original,coord_target):
geom_col = ogr.Geometry(ogr.wkbGeometryCollection)
for g in geom_polygon:
geom_col.AddGeometry(g)
geom_polygon_count = geom_polygon.GetGeometryCount()
for m in range(0,geom_polygon_count):
geom_polygon.RemoveGeometry(geom_polygon_count-m-1)
for g in geom_col:
g_trans = polygon_transform(g,coord_original,coord_target)
geom_polygon.AddGeometry(g_trans)
return geom_polygon
def polyline_transform(geom_polyline,coord_original,coord_target):
geom_type = geom_polyline.GetGeometryType()
z_value = ogr.GT_HasZ(geom_type)
# print(z_value)
geom_polyline_count = geom_polyline.GetPointCount()
for i in range(0,geom_polyline_count):
point_orginal = geom_polyline.GetPoint(i)
# 坐标系转换
if coord_original == 'gcj02' and coord_target == 'wgs84':
point_polygon_trans = gcj02towgs84(point_orginal[0], point_orginal[1])
elif coord_original == 'wgs84' and coord_target == 'gcj02':
point_polygon_trans = wgs84togcj02(point_orginal[0], point_orginal[1])
elif coord_original == 'gcj02' and coord_target == 'bd09':
point_polygon_trans = gcj02tobd09(point_orginal[0], point_orginal[1])
elif coord_original == 'bd09' and coord_target == 'gcj02':
point_polygon_trans = bd09togcj02(point_orginal[0], point_orginal[1])
elif coord_original == 'wgs84' and coord_target == 'bd09':
point_polygon_trans_gcj02 = wgs84togcj02(point_orginal[0], point_orginal[1])
point_polygon_trans = gcj02tobd09(point_polygon_trans_gcj02[0], point_polygon_trans_gcj02[1])
elif coord_original == 'bd09' and coord_target == 'wgs84':
point_polygon_trans_gcj02 = bd09togcj02(point_orginal[0], point_orginal[1])
point_polygon_trans = gcj02towgs84(point_polygon_trans_gcj02[0], point_polygon_trans_gcj02[1])
else:
point_polygon_trans = [point_orginal[0], point_orginal[1]]
if z_value == 1:
geom_polyline.SetPoint(i,point_polygon_trans[0],point_polygon_trans[1],point_orginal[2])
else:
geom_polyline.SetPoint_2D(i,point_polygon_trans[0],point_polygon_trans[1])
return geom_polyline
def multi_polyline_transform(geom_polyline,coord_original,coord_target):
geom_col = ogr.Geometry(ogr.wkbGeometryCollection)
for g in geom_polyline:
geom_col.AddGeometry(g)
geom_polyline_count = geom_polyline.GetGeometryCount()
for m in range(0,geom_polyline_count):
geom_polyline.RemoveGeometry(geom_polyline_count-m-1)
for g in geom_col:
g_trans = polyline_transform(g,coord_original,coord_target)
geom_polyline.AddGeometry(g_trans)
return geom_polyline
def point_transform(geom_point,coord_original,coord_target):
geom_type = geom_point.GetGeometryType()
z_value = ogr.GT_HasZ(geom_type)
# print(z_value)
# 坐标系转换
if coord_original == 'gcj02' and coord_target == 'wgs84':
point_polygon_trans = gcj02towgs84(geom_point.GetX(), geom_point.GetY())
elif coord_original == 'wgs84' and coord_target == 'gcj02':
point_polygon_trans = wgs84togcj02(geom_point.GetX(), geom_point.GetY())
elif coord_original == 'gcj02' and coord_target == 'bd09':
point_polygon_trans = gcj02tobd09(geom_point.GetX(), geom_point.GetY())
elif coord_original == 'bd09' and coord_target == 'gcj02':
point_polygon_trans = bd09togcj02(geom_point.GetX(), geom_point.GetY())
elif coord_original == 'wgs84' and coord_target == 'bd09':
point_polygon_trans_gcj02 = wgs84togcj02(geom_point.GetX(), geom_point.GetY())
point_polygon_trans = gcj02tobd09(point_polygon_trans_gcj02[0], point_polygon_trans_gcj02[1])
elif coord_original == 'bd09' and coord_target == 'wgs84':
point_polygon_trans_gcj02 = bd09togcj02(geom_point.GetX(), geom_point.GetY())
point_polygon_trans = gcj02towgs84(point_polygon_trans_gcj02[0], point_polygon_trans_gcj02[1])
else:
point_polygon_trans = [geom_point.GetX(), geom_point.GetY()]
if z_value == 1:
geom_point.SetPoint(0,point_polygon_trans[0],point_polygon_trans[1], geom_point.GetZ())
else:
geom_point.SetPoint_2D(0,point_polygon_trans[0],point_polygon_trans[1])
return geom_point
def multi_point_transform(geom_point,coord_original,coord_target):
# print(geom_point)
geom_col = ogr.Geometry(ogr.wkbGeometryCollection)
for g in geom_point:
geom_col.AddGeometry(g)
geom_point_count = geom_point.GetGeometryCount()
for m in range(0,geom_point_count):
geom_point.RemoveGeometry(geom_point_count-m-1)
for g in geom_col:
g_trans = point_transform(g,coord_original,coord_target)
geom_point.AddGeometry(g_trans)
# print(geom_point)
return geom_point
def transform_shpfile(read_path_str,write_path_str,coord_original,coord_target):
write_file_name = write_path_str.split('.')[0]
read_file_name = read_path_str.split('.')[0]
if os.path.exists(read_file_name+'.cpg'):
copyfile(read_file_name+'.cpg',write_file_name+'.cpg')
if os.path.exists(read_file_name+'.dbf'):
copyfile(read_file_name+'.dbf',write_file_name+'.dbf')
if os.path.exists(read_file_name+'.prj'):
copyfile(read_file_name+'.prj',write_file_name+'.prj')
if os.path.exists(read_file_name+'.qpj'):
copyfile(read_file_name+'.qpj',write_file_name+'.qpj')
if os.path.exists(read_file_name+'.shp'):
copyfile(read_file_name+'.shp',write_file_name+'.shp')
if os.path.exists(read_file_name+'.shx'):
copyfile(read_file_name+'.shx',write_file_name+'.shx')
# 支持中文路径
gdal.SetConfigOption('GDAL_FILENAME_IS_UTF8', 'YES')
fcode = open(write_file_name+'.cpg','r')
fcodelines = fcode.readlines()
code_name = fcodelines[0].strip('\n')
fcode.close()
# 支持中文编码
gdal.SetConfigOption('SHAPE_ENCODING', code_name)
# 注册所有的驱动
ogr.RegisterAll()
# 打开数据
ds = ogr.Open(write_file_name+'.shp', 1)
if ds == None:
print('打开文件失败！')
# 获取数据源中的图层个数，shp数据图层只有一个，gdb、dxf会有多个
iLayerCount = ds.GetLayerCount()
print('图层个数 = ', iLayerCount)
# 获取第一个图层
oLayer = ds.GetLayerByIndex(0)
if oLayer == None:
print('获取图层失败！')
# 对图层进行初始化
oLayer.ResetReading()
# 输出图层中的要素个数
num = oLayer.GetFeatureCount(0)
oFid = oLayer.GetFIDColumn()
print(oFid)
oDefn = oLayer.GetLayerDefn()
# 获取要素
for i in range(0, num):
ofeature = oLayer.GetFeature(i)
oLayer.DeleteFeature(i)
geom = ofeature.GetGeometryRef()
geom_type = geom.GetGeometryName()
# print(geom_type)
if 'MULTIPOLYGON' in geom_type:
ofeature.SetGeometry(multi_polygon_transform(geom, coord_original, coord_target))
elif 'MULTILINESTRING' in geom_type:
ofeature.SetGeometry(multi_polyline_transform(geom, coord_original, coord_target))
elif 'MULTIPOINT' in geom_type:
ofeature.SetGeometry(multi_point_transform(geom, coord_original, coord_target))
elif 'POLYGON' in geom_type and 'MULTI' not in geom_type:
ofeature.SetGeometry(polygon_transform(geom, coord_original, coord_target))
elif 'LINESTRING' in geom_type and 'MULTI' not in geom_type:
ofeature.SetGeometry(polyline_transform(geom, coord_original, coord_target))
elif 'POINT' in geom_type and 'MULTI' not in geom_type:
ofeature.SetGeometry(point_transform(geom, coord_original, coord_target))
oLayer.CreateFeature(ofeature)
ds.Destroy()
del ds