GeometryAdapter.py
4.5 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
# coding=utf-8
#author: 4N
#createtime: 2021/6/3
#email: nheweijun@sina.com
from osgeo import ogr
from osgeo.ogr import Geometry
class GeometryAdapter:
@classmethod
def getType(cls,layer):
origin = layer.GetGeomType() # type:str
if origin == 1 or origin == 4:
return "point"
elif origin == 2 or origin == 5:
return "linestring"
elif origin == 3 or origin == 6:
return "polygon"
return str(origin)
@classmethod
def change_geom_type(cls,raw):
if raw==2 or raw ==3:
return raw+3
if raw==4:
return 1
if raw==-2147483647 or raw.__eq__(-2147483644):
return 1
if raw==-2147483646 or raw.__eq__(-2147483643):
return 5
if raw==-2147483645 or raw.__eq__(-2147483642):
return 6
return raw
@classmethod
def change_geom(cls,geo:Geometry,geom_type):
'''
转换空间对象的类型，以适应dmap只支持Multi类型
:param geo:
:param geom_type:
:return: 转换后的空间对象
'''
# Point = 1,
# LineString = 2,
# Polygon = 3,
# MultiPoint = 4,
# MultiLineString = 5,
# MultiPolygon = 6,
# GeometryCollection = 7,
# CircularString = 8,
# CompoundCurve = 9,
# CurvePolygon = 10,
# MultiCurve = 11,
# MultiSurface = 12,
# PolyhedralSurface = 15,
# LinearRing = 101,
# MultiPointZ = -2147483644
# MultiLineStringZ = -2147483643
# MultiPolygonZ = -2147483642
# PointZ = -2147483647
# LINESTRINGZ=-2147483646
# POLYGONZ=-2147483645
if geom_type==5 or geom_type.__eq__(-2147483646) or geom_type.__eq__(-2147483643):
return ogr.ForceToMultiLineString(geo)
if geom_type==6 or geom_type.__eq__(-2147483645) or geom_type.__eq__(-2147483642):
return ogr.ForceToMultiPolygon(geo)
if geom_type==1:
return geo.Centroid()
return geo
@classmethod
def get_table_type(cls, raw):
# Point = 1,
# LineString = 2,
# Polygon = 3,
# MultiPoint = 4,
# MultiLineString = 5,
# MultiPolygon = 6,
# GeometryCollection = 7,
# CircularString = 8,
# CompoundCurve = 9,
# CurvePolygon = 10,
# MultiCurve = 11,
# MultiSurface = 12,
# PolyhedralSurface = 15,
# LinearRing = 101,
# MultiPointZ = -2147483644
# MultiLineStringZ = -2147483643
# MultiPolygonZ = -2147483642
# PointZ = -2147483647
# LINESTRINGZ=-2147483646
# POLYGONZ=-2147483645
if raw == 4 or raw == 5 or raw == 6:
return raw - 3
elif raw == -2147483644 or raw == -2147483647:
return 1
elif raw == -2147483643 or raw == -2147483646:
return 2
elif raw == -2147483642 or raw == -2147483645:
return 3
return raw
def move(self,geo: Geometry, offx, offy):
g = geo.GetGeometryRef(0)
num = g.GetPointCount()
coor = []
for j in range(num):
point = g.GetPoint(j)
x = point[0]
y = point[1]
x += offx
y += offy
coor.append([x, y])
if num == 1:
point = ogr.Geometry(ogr.wkbPoint)
point.AddPoint(coor[0][0], coor[0][1])
return point
elif coor[0].__eq__(coor[-1]):
ring = ogr.Geometry(ogr.wkbLinearRing)
for co in coor:
ring.AddPoint(co[0], co[1])
poly = ogr.Geometry(ogr.wkbPolygon)
poly.AddGeometry(ring)
return poly
else:
line = ogr.Geometry(ogr.wkbLineString)
for co in coor:
line.AddPoint(co[0], co[1])
return line
@classmethod
def envelop_2_polygon(cls,env):
ring = ogr.Geometry(ogr.wkbLinearRing)
ring.AddPoint(env[0], env[2])
ring.AddPoint(env[0], env[3])
ring.AddPoint(env[1], env[3])
ring.AddPoint(env[1], env[2])
ring.AddPoint(env[0], env[2])
# Create polygon
poly = ogr.Geometry(ogr.wkbPolygon)
poly.AddGeometry(ring)
return poly