Newer
Older
Campbell Barton
committed
#
# 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.
#
# This program 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# ***** END GPL LICENCE BLOCK *****
# <pep8 compliant>
bl_info = {
"name": "Open Street Map (.osm)",
"author": "Michael Anthrax Schlachter, ideasman42, littleneo",
"version": (0, 2),
Campbell Barton
committed
"blender": (2, 6, 3),
"location": "File > Import",
"description": "Load Open Street Map File",
"wiki_url": "",
"tracker_url": "",
"category": "Import-Export"}
# originally written for blender 2.4x by (manthrax _at_ hotmail.com),
Campbell Barton
committed
# If you use it for something cool, send me an email and let me know!
# littleneo (v0.2 - september 2012) :
## added a lat/lon to UTM conversion option geoToUTM() :
# the generated mesh now almost match the exported osm image of the same area, just play with scale and rotate a bit.
## added ability to retrieve openstreet tags as vertex groups :
# add every way id as a vgroup if the tag exists in osmkeys.
# add nodes id as vgroup if the tag value pair exists in osmvals.
# any elligible is added in the corresponding osmkeys or value ('_V_...' vgroup
Campbell Barton
committed
## added bpy access to addon :
# bpy.ops.import_mesh.osm(filepath="....", scale=100, utm=False, tag=False)
Campbell Barton
committed
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
## added custom properties to generated object so it can be used as source for other osm related scripts :
# osmfile path to osm xml file
# tagged bool. osm tags included
# utm bool. default True
# modified the matrix approximation for utm = False
# ! corrected lat/lon x/y mismatch
import bpy
from mathutils import Vector, Matrix
import math
from math import radians, sin, cos, tan, sqrt
## add more osm tags here.
# http://wiki.openstreetmap.org/wiki/Map_Features
osmkeys = [
'highway',
'barrier',
'wall',
'cycleway',
'bicycle',
'waterway',
'railway',
'aeroway',
'aerialway',
'power',
'man_made',
'building',
'leisure',
'amenity',
'office',
'shop',
'craft',
'emergency',
'tourism',
'historic',
'landuse',
'military',
'natural',
]
# just a try for nodes, for retrieving v tag values.
# keyname must exists in osmkeys
osmvals = {'highway':['traffic_signals']}
# vertex group name -> vertex group index lookup
grouplookup = {}
def parseBranch(nodes, bm, nmap, obj, scale=100.0, tag=False, UTM=False):
vgroups = bm.verts.layers.deform.verify()
Campbell Barton
committed
tidx = 0
inNode = 0
dlat = dlong = clat = clong = minlat = maxlat = minlong = maxlong = 0.0
for node in nodes:
if node.localName == "bounds":
if node.hasAttributes():
for i in range(node.attributes.length):
at = node.attributes.item(i)
if at.name == "minlat":
minlat = float(at.nodeValue)
elif at.name == "minlon":
minlong = float(at.nodeValue)
elif at.name == "maxlat":
maxlat = float(at.nodeValue)
elif at.name == "maxlon":
maxlong = float(at.nodeValue)
dlat = maxlat - minlat
dlong = maxlong - minlong
clat = (maxlat + minlat) * 0.5
clong = (maxlong + minlong) * 0.5
if UTM :
dlong, dlat = geoToUTM(dlong, dlat)
clong, clat = geoToUTM(clong, clat)
Campbell Barton
committed
print(dlat, dlong, clat, clong)
if node.localName == "way":
Campbell Barton
committed
nid = None
refs = []
if tag :
group = obj.vertex_groups.new('way_%s'%wayid)
gid = len(obj.vertex_groups) -1
Campbell Barton
committed
'''
if node.hasAttributes():
for i in range(node.attributes.length):
at=node.attributes.item(i)
print(at.name)
'''
if tag :
metagid = []
for ch in node.childNodes:
if ch.localName == "tag":
key = ch.getAttribute('k')
if key in osmkeys :
metagid.append(grouplookup[key])
Campbell Barton
committed
for ch in node.childNodes:
if ch.localName == "nd":
for i in range(ch.attributes.length):
at = ch.attributes.item(i)
if at.name == "ref":
vid = int(at.nodeValue)
refs.append(vid)
if tag :
vert = nmap[vid]
weigths = vert[vgroups]
weigths[gid] = 1.0
for mid in metagid : weigths[mid] = 1.0
Campbell Barton
committed
first = 1
for r in refs:
if first == 0:
edge = bm.edges.get((nmap[pr], nmap[r]))
if edge is None:
edge = bm.edges.new((nmap[pr], nmap[r]))
del edge # don't actually use it
else:
first = 0
pr = r
if node.localName == "node":
if node.hasAttributes():
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
nid = node.getAttribute('id')
nlong = node.getAttribute('lon')
nlat = node.getAttribute('lat')
# is this test necessary ? maybe for faulty .osm files
if (nid != '') and (nlat != '') and (nlong != '') :
if UTM :
nlong, nlat = geoToUTM(float(nlong),float(nlat))
else :
nlat = float(nlat)
nlong = float(nlong)
x = (nlong - clong) * scale / dlat
y = (nlat - clat) * scale / dlat
vert = bm.verts.new((x, y, 0.0))
nmap[int(nid)] = vert
if tag :
metagid = []
for ch in node.childNodes:
if ch.localName == "tag":
key = ch.getAttribute('k')
val = ch.getAttribute('v')
if key in osmvals and val in osmvals[key] :
metagid.append(grouplookup[key])
metagid.append(grouplookup['_V_'+val])
weigths = vert[vgroups]
group = obj.vertex_groups.new('node_%s'%nid)
gid = len(obj.vertex_groups) -1
weigths[gid] = 1.0
for mid in metagid : weigths[mid] = 1.0
else : print('node is missing some elements : %s %s %s'%(nid,nlat,nlong))
Campbell Barton
committed
tidx += 1
#if tidx > 1000:
# break
Campbell Barton
committed
return tidx
Campbell Barton
committed
import bmesh
from xml.dom import minidom
Campbell Barton
committed
bm = bmesh.new()
name = bpy.path.display_name_from_filepath(filepath)
me = bpy.data.meshes.new(name)
obj = bpy.data.objects.new(name, me)
Campbell Barton
committed
# osm tags option
if tag :
tvid = 0
for gid, grname in enumerate(osmkeys) :
obj.vertex_groups.new('_'+grname)
grouplookup[grname] = gid + tvid
if grname in osmvals :
for val in osmvals[grname] :
tvid += 1
obj.vertex_groups.new('_V_'+val)
grouplookup['_V_'+val] = gid + tvid
# get xml then feed bmesh
print("Reading xml...")
xmldoc = minidom.parse(filepath)
print("Starting parse: %r..." % filepath)
Campbell Barton
committed
nmap = {}
tidx = parseBranch(xmldoc.childNodes, bm, nmap, obj,scale,tag,utm)
Campbell Barton
committed
bm.to_mesh(me)
global_matrix = Matrix(((0.65, 0.0, 0.0, 0.0),
(0.0, 1.0, 0.0, 0.0),
(0.0, 0.0, 1.0, 0.0),
(0.0, 0.0, 0.0, 1.0)))
me.transform(global_matrix)
Campbell Barton
committed
# create the object in the scene
scene = context.scene
scene.objects.link(obj)
scene.objects.active = obj
obj.select = True
# entry points for other addons
obj['osmfile'] = filepath
obj['tagged'] = tag
obj['utm'] = utm
Campbell Barton
committed
print("Parse done... %d" % tidx)
return {'FINISHED'}
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
# given lat and longitude in degrees, returns x and y in UTM kilometers.
# accuracy : supposed to be centimeter :)
# http://fr.wikipedia.org/wiki/Projection_UTM
# http://fr.wikipedia.org/wiki/WGS_84
# http://earth-info.nga.mil/GandG/publications/tr8350.2/wgs84fin.pdf
# http://geodesie.ign.fr/contenu/fichiers/documentation/algorithmes/alg0071.pdf
def geoToUTM(lon, lat) :
# if abs(lat) > 80 : lat = 80 #wrong coords.
# UTM zone, longitude origin, then lat lon in radians
z = int( (lon + 180) / 6 ) + 1
lon0 = radians(6*z - 183)
lat = radians(lat)
lon = radians(lon)
# CONSTANTS (see refs.)
# rayon de la terre à l'équateur
a = 6378.137
K0 = 0.9996
# flattening consts
f = 0.0033528106647474805 # 1 / 298.257223563
e2 = 0.0066943799901413165 # 2*f - f**2
e4 = 4.481472345240445e-05 # e2**2
e6 = 3.0000678794349315e-07 # e2**3
# lat0. 10000 for South, 0 for North
N0 = 10000 if lat < 0 else 0
# wiki is your friend (don't ask me Im just a writing monkey.)
A = (lon - lon0) * cos(lat)
C = (e2 / (1 - e2)) * cos(lat)**2
T = tan(lat)**2
vlat = 1 / sqrt( 1 - e2 * sin(lat)**2 )
slat = (1-(e2/4)-((3*e4)/64)-((5*e6)/256))*lat - (((3*e2)/8)+((3*e4)/32)+((45*e6)/1024))*sin(lat*2) + (((15*e4)/256) + ((45*e6)/1024) )*sin(lat*4) - ((35*e6)/3072)*sin(lat*6)
E = 500 + (K0 * a * vlat) * (A + (1-T+C)*((A**3)/6) + (5 - 18 * T + T**2) * ((A**5)/120) )
N = N0 + (K0 * a) * ( slat+vlat*tan(lat)* (A**2/2 + (5-T+9*C+4*C**2) * (A**4/24) + (61-58*T+T**2) * A**6/720) )
return E,N
Campbell Barton
committed
## for testing
#if __name__ == "__main__":
# read("/data/downloads/osm_parser/map.osm", bpy.context)
# ----------------------------------------------------------------------------
# blender integration
from bpy.types import Operator
from bpy_extras.io_utils import ImportHelper
Campbell Barton
committed
class ImportOSM(Operator, ImportHelper):
"""Import OSM"""
#bl_idname = "import.open_street_map"
bl_idname = "import_mesh.osm"
Campbell Barton
committed
bl_label = "Import OpenStreetMap (.osm)"
# ExportHelper mixin class uses this
filename_ext = ".osm"
filter_glob = StringProperty(
default="*.osm",
options={'HIDDEN'},
)
# List of operator properties, the attributes will be assigned
# to the class instance from the operator settings before calling.
scale = FloatProperty(
name="Scale",
default=100.0,
)
utm = BoolProperty(
name="in UTM coordinates",
default=True,
)
tag = BoolProperty(
name="retrieve .osm tags as vertex groups",
default=False,
)
def execute(self, context) :
return read(context, self.filepath, self.scale, self.tag, self.utm)
Campbell Barton
committed
# Only needed if you want to add into a dynamic menu
def menu_func_export(self, context):
self.layout.operator(ImportOSM.bl_idname)
def register():
bpy.utils.register_class(ImportOSM)
bpy.types.INFO_MT_file_import.append(menu_func_export)
def unregister():
bpy.utils.unregister_class(ImportOSM)
bpy.types.INFO_MT_file_import.remove(menu_func_export)