-
Notifications
You must be signed in to change notification settings - Fork 0
/
mapexport.py
executable file
·295 lines (240 loc) · 10.5 KB
/
mapexport.py
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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
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
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
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
#!/usr/bin/python
# coding: utf-8
import os
import math
import gmapcatcher.mapConf as mapConf
from gmapcatcher.mapUtils import *
from gmapcatcher.mapServices import MapServ
from gmapcatcher.xmlUtils import load_gpx_coords
mConf = mapConf.MapConf()
ctx_map = MapServ(mConf)
from reportlab.pdfgen import canvas
from reportlab.lib import pagesizes
from reportlab.lib.units import inch
Image = None
# Constants
TILE = 256
### Tile convertion ###
def deg2pix(lat_deg, lon_deg, zoom):
coord, offset = coord_to_tile((lat_deg, lon_deg, 17 - zoom))
return (coord[0] * TILES_WIDTH + offset[0], coord[1] * TILES_HEIGHT + offset[1])
def coord2pixels(coords, zoom):
a = deg2pix(coords[0][0], coords[0][1], zoom)
b = deg2pix(coords[1][0], coords[1][1], zoom)
st = min(a[0], b[0]), min(a[1], b[1])
ed = max(a[0], b[0]), max(a[1], b[1])
pixels = (st, ed)
pixels_sz = (ed[0] - st[0], ed[1] - st[1])
return pixels, pixels_sz
### Page size in inches
#PAGESIZE = 8.27, 11.69
#PAGESIZE = 11.69, 8.27
PAGESIZE = tuple(x / 72.0 for x in pagesizes.landscape(pagesizes.A4))
MARGIN = 0.22, 0.27
SOLAPE = 0.20, 0.20
## Parameters
# pixels = ((px_x,px_y),(px_x,px_y))
# pixel_center = (px_x, px_y)
# pixel_range = (delta_x, delta_y)
# coords = ((lat,lon), (lat,lon))
# coord_center = (lat,lon)
# coord_range = (delta_lat,delta_lon)
# zoom
# dpi
# pages
def mapPDF(pdffile, zoom, layer=2, coords=None, coord_center=None, coord_range=None, pixels=None, pixel_center=None, pixel_range=None, pages=(1, 1), dpi=None, title=None):
# Check de parámetros
pgsz = (PAGESIZE[0] - 2 * MARGIN[0] - SOLAPE[0], PAGESIZE[1] - 2 * MARGIN[1] - SOLAPE[1])
pixels_sz = None
if isinstance(pages, int):
pages = (pages, pages)
if zoom is not None and pixel_center is None and coord_range is not None:
pixel_center = deg2pix(coord_center[0], coord_center[1], zoom)
if dpi is not None and pages is not None and pixel_range is None:
pixel_range = (int(pgsz[0] * dpi * pages[0] / 2), int(pgsz[1] * dpi * pages[1] / 2))
if zoom is not None:
if coords is not None:
# Pixels en función de las coordenadas y el zoom
pixels, pixels_sz = coord2pixels(coords, zoom)
elif coord_center is not None:
# Pixels en función del centro y algún rango
if coord_range is not None:
coords = ((coord_center[0] - coord_range[0], coord_center[1] - coord_range[1]),
(coord_center[0] + coord_range[0], coord_center[1] + coord_range[1]))
pixels, pixels_sz = coord2pixels(coords, zoom)
elif pixel_range is not None:
a = deg2pix(coord_center[0], coord_center[1], zoom)
pixels = ((a[0] - pixel_range[0], a[1] - pixel_range[1]), (a[0] + pixel_range[0], a[1] + pixel_range[1]))
pixels_sz = (2 * pixel_range[0], 2 * pixel_range[1])
if pixels is None or pixels_sz is None:
print "You must provide more information to define the map, comeon!"
d = locals()
for x in d:
print '%15s = %r' % (x, d[x])
return False
# Computes the dpi
if dpi is None:
dpix = float(pixels_sz[0]) / pages[0] / pgsz[0]
dpiy = float(pixels_sz[1]) / pages[1] / pgsz[1]
dpi = max(dpix, dpiy)
pages = (
int(math.ceil(float(pixels_sz[0]) / dpi / pgsz[0] - 0.1)),
int(math.ceil(float(pixels_sz[1]) / dpi / pgsz[1] - 0.1)))
print "pages needed: (%.2f,%.2f)" % (float(pixels_sz[0]) / dpi / pgsz[0] - 0.1, float(pixels_sz[1]) / dpi / pgsz[1] - 0.1)
sz = (
int(float(pages[0]) * dpi * pgsz[0]),
int(float(pages[1]) * dpi * pgsz[1])
)
dbzoom = 17 - zoom
st, ed = pixels
# Centers the image in the requested area:
dsp = (
(sz[0] - pixels_sz[0]) / 2,
(sz[1] - pixels_sz[1]) / 2
)
st = (st[0] - dsp[0], st[1] - dsp[1])
ed = (ed[0] - dsp[0], ed[1] - dsp[1])
# Generate the PDF
pdf = canvas.Canvas(pdffile, pagesize=pagesizes.landscape(pagesizes.A4))
pgw, pgh = int(round(dpi * (pgsz[0] + SOLAPE[0]))), int(round(dpi * (pgsz[1] + SOLAPE[1])))
if title is None:
title = pdffile
pdf.setTitle('%s - zoom %d' % (title, zoom))
#pdf.setFontSize(size=5)
pdf.setStrokeColorRGB(0.2, 0.5, 0.3)
print 'Generating pages, dpi=%.2f, pages=%dx%d, pagesize=%dx%d' % (dpi, pages[0], pages[1], pgw, pgh)
flist = []
for px in range(pages[0]):
for py in range(pages[1]):
### Print some information over the map ###
info = "dpi=%d zoom=%d page=%d,%d" % (int(dpi), zoom, px + 1, py + 1)
imfn = '%s_%d_%d_%d.png' % (pdffile, zoom, px, py)
flist.append(imfn)
crx, cry = st[0] + int(round(px * dpi * pgsz[0])), st[1] + int(round(py * dpi * pgsz[1]))
do_combine_subtile(dbzoom, layer, True, mConf, imfn, (0, 0), crop_start=(crx, cry), crop_size=(pgw, pgh))
pdf.drawImage(imfn, MARGIN[0] * inch, MARGIN[1] * inch, width=(pgsz[0] + SOLAPE[0]) * 72.0, height=(pgsz[1] + SOLAPE[1]) * 72.0, )
pdf.setFont("Helvetica", 7)
pdf.drawString((PAGESIZE[0] - MARGIN[0] - 1.5) * inch, (MARGIN[1] - 0.08) * inch, info)
pdf.drawString(MARGIN[0] * inch, (MARGIN[1] - 0.08) * inch, '%s - page %d,%d' % (title, px + 1, py + 1))
pdf.showPage()
print crx, cry
pdf.save()
del pdf
for f in flist:
os.unlink(f)
print pages
## Combine tiles (or part of them) in a big PIL image
def do_combine_subtile(zoom, layer, online, conf, filename, start, size=(1, 1), crop_start=(0, 0), crop_size=(None, None)):
stx, sty = start
w, h = size
crx, cry = crop_start
crw, crh = crop_size
# Test import PIL
global Image
if not Image:
try:
from PIL import Image
except Exception, inst:
return str(inst)
# Fix cropping to have at most one tile cropped
d = crx / TILES_WIDTH
stx += d
w -= d
crx -= d * TILES_WIDTH
d = cry / TILES_HEIGHT
sty += d
h -= d
cry -= d * TILES_HEIGHT
if crw is None:
crw = w * TILES_WIDTH - crx
else:
w = (crx + crw + TILES_WIDTH - 1) / TILES_WIDTH
if crh is None:
crh = h * TILES_HEIGHT - cry
else:
h = (cry + crh + TILES_HEIGHT - 1) / TILES_HEIGHT
img = Image.new("RGB", (crw, crh), (255, 255, 255))
for x in range(stx, stx + w):
for y in range(sty, sty + h):
if ctx_map.get_tile((x, y, zoom), layer, online, False, conf):
pb = ctx_map.load_pixbuf((x, y, zoom), layer, False)
if isinstance(pb, str):
# is an image encoded in a string file
tilef = StringIO.StringIO()
tilef.write(pb)
tilef.seek(0)
print repr(tilef.read())
tileimg = Image.open(tilef)
else:
# is a real pixbuf
width, height = pb.get_width(), pb.get_height()
tileimg = Image.fromstring("RGB", (width, height), pb.get_pixels())
px = (x - stx) * TILES_WIDTH - crx
py = (y - sty) * TILES_HEIGHT - cry
img.paste(tileimg, (px, py))
del pb
img.load()
img.save(filename, 'PNG')
return filename
def coordRange(coords):
xr, yr = None, None
for x, y in coords:
if xr is None:
xr = (x, x)
else:
xr = min(xr[0], x), max(xr[0], x)
if yr is None:
yr = (y, y)
else:
yr = min(yr[0], y), max(yr[0], y)
return xr, yr
def gpxRange(files):
if isinstance(files, str):
files = [files]
coordlist = []
for fn in files:
coordlist.append(load_gpx_coords(fn))
return itertools.chain(*coordlist)
def main(layer):
### Examples
# Export Paris in 160dpi, zoom=15 and in 2x3 landscape A4 pages. The width and height of the map is computed to fit this requirement.
#~ mapPDF('paris_%d.pdf'%dpi, title="Paris, France", zoom=15, pages=(2, 3), coord_center=(48.856245, 2.347898), dpi=dpi, layer=layer)
# Export a given region of Paris with the given zoom=14, in 2x2 landscape A4 pages, adjusting the dpi to the needed value.
zoom = 8
#~ mapPDF('paris_z%d.pdf'%zoom, title='Paris, France', zoom=zoom, pages=2, coord_center=(48.856245, 2.347898), coord_range=(0.028623, 0.084114), layer=layer)
zoom = 7
#~ mapPDF('euro_z%d_l%d.pdf'%(zoom,layer), title='Paris, France', zoom=zoom, pages=1, coords=((37.83, -4.45), (52.88, 23.94)), layer=layer)
zoom = 8
#~ mapPDF('euro_z%d_l%d.pdf'%(zoom,layer), title='Paris, France', zoom=zoom, pages=2, coords=((37.83, -4.45), (52.88, 23.94)), layer=layer)
path = '/home/deymo/progs/voyage/toprint/'
lst = [
#~ ('France-west', 'france-west', 10, 3, (44.598290, -0.8500), (48.283193, 2.050)),
#~ ('Paris, France', 'paris', 11, 3, (48.788319, 2.090836), (49.026838, 2.581100)),
#~ ('Spain', 'spain', 10, 3, (43.369119, -3.235474), (41.166249, 3.131104)),
#~ ('Belgium', 'belgium', 11, 3, (51.267071, 2.680664), (50.433017, 5.350342)),
#~ ('Germany', 'germany', 10, 3, (52.869130, 12.00), (47.783635, 17.55)),
#~ ('Hungary', 'hungary', 10, 3, (48.246626, 16.226807), (47.301585, 19.544678)),
#~ ('Serbia', 'serbia', 10, 3, (47.569114, 18.929443), (44.606113, 20.731201)),
#~ ('Macedonia', 'macedonia', 10, 3, (44.816916, 20.335693), (41.037931, 22.730713)),
('Greece', 'greece', 11, 3, (37.9, 24.00), (40.76, 21.23)),
#~ ('', '', 10, 3, (), ()),
#~ ('', '', 10, 3, (), ()),
#~ ('', '', 10, 3, (), ()),
]
for title, fn, zoom, pages, coord1, coord2 in lst:
for layer in [0, ]:
print '%s_z%d_l%d.pdf' % (path + fn, zoom, layer)
mapPDF('%s_z%d_l%d.pdf' % (path + fn, zoom, layer), title=title, zoom=zoom, dpi=175, coords=(coord1, coord2), layer=layer)
#~ print gpxRange(
if __name__ == '__main__':
except_occ = False
try:
main(layer=2)
except:
except_occ = True
raise
finally:
# Sory for this rude thing, but the program doesn't stop by itself
if not except_occ:
import signal
os.kill(os.getpid(), signal.SIGTERM)