def test_getTileBounds(self):
self.assertNearlyEqual(getTileBounds(level=1, x=0, y=0),
(-180, -90, 0, 90))
self.assertNearlyEqual(getTileBounds(level=1, x=1, y=0),
(0, -90, 180, 90))
self.assertNearlyEqual(getTileBounds(level=3, x=2, y=2),
(-90, 0, -45, 45))
def mapTileImage(request, dayCode, level, x, y):
level = int(level)
x = int(x)
y = int(y)
genTilePath = os.path.join(os.path.dirname(__file__), 'genTile.py')
coordArgs = ('--west=%s --south=%s --east=%s --north=%s' %
tile.getTileBounds(level, x, y))
fd, outPath = tempfile.mkstemp('-genTileOutput.png')
os.close(fd)
ret = dosys('%s %s %s' % (genTilePath, coordArgs, outPath))
if ret == 0:
img = outPath
mimetype = 'image/png'
else:
# stupid fallback if genTile doesn't work. for example, if matplotlib is not installed.
img = os.path.join(os.path.dirname(__file__), 'static', 'style',
'isruApp', 'resolveLogo70.png')
mimetype = 'image/gif'
try:
pass # os.remove(outPath)
except OSError:
pass
return HttpResponse(file(img, 'r').read(), content_type=mimetype)
def mapTileImage(request, dayCode, level, x, y):
level = int(level)
x = int(x)
y = int(y)
genTilePath = os.path.join(os.path.dirname(__file__), 'genTile.py')
coordArgs = ('--west=%s --south=%s --east=%s --north=%s'
% tile.getTileBounds(level, x, y))
fd, outPath = tempfile.mkstemp('-genTileOutput.png')
os.close(fd)
ret = dosys('%s %s %s'
% (genTilePath, coordArgs, outPath))
if ret == 0:
img = outPath
mimetype = 'image/png'
else:
# stupid fallback if genTile doesn't work. for example, if matplotlib is not installed.
img = os.path.join(os.path.dirname(__file__), 'static', 'style', 'isruApp', 'resolveLogo70.png')
mimetype = 'image/gif'
try:
pass # os.remove(outPath)
except OSError:
pass
return HttpResponse(file(img, 'r').read(),
content_type=mimetype)
def mapTileKml(request, layerId, dayCode, level, x, y):
level = int(level)
x = int(x)
y = int(y)
# make links to sub-tiles if necessary
if level < settings.XGDS_PLOT_MAP_ZOOM_RANGE[1] - 1:
linkList = []
subLevel = level + 1
for offset in ((0, 0), (0, 1), (1, 0), (1, 1)):
subX = 2 * x + offset[0]
subY = 2 * y + offset[1]
subUrl = (request.build_absolute_uri(
reverse('xgds_plot_mapTileKml',
args=[layerId, dayCode, subLevel, subX, subY])))
linkList.append("""
<NetworkLink>
<Region>
%(box)s
<Lod>
<minLodPixels>%(minLodPixels)s</minLodPixels>
<maxLodPixels>-1</maxLodPixels>
</Lod>
</Region>
<Link>
<href>%(subUrl)s</href>
<viewRefreshMode>onRegion</viewRefreshMode>
</Link>
</NetworkLink>
""" % dict(box=tile.getLatLonAltBox(tile.getTileBounds(subLevel, subX, subY)),
subUrl=subUrl,
minLodPixels=settings.XGDS_PLOT_MAP_PIXELS_PER_TILE // 2))
netLinks = '\n'.join(linkList)
else:
netLinks = ''
#tileUrl = request.build_absolute_uri(reverse('mapTileImage', args=[level, x, y]))
tileUrl = request.build_absolute_uri(
'%s/%s/%s/%d/%d/%d.png' %
(MAP_DATA_PATH, layerId, dayCode, level, x, y))
bounds = tile.getTileBounds(level, x, y)
minZoom, maxZoom = settings.XGDS_PLOT_MAP_ZOOM_RANGE
if level < maxZoom - 1:
maxLodPixels = settings.XGDS_PLOT_MAP_PIXELS_PER_TILE * 2
else:
maxLodPixels = -1
if level > minZoom:
minLodPixels = settings.XGDS_PLOT_MAP_PIXELS_PER_TILE // 2
else:
minLodPixels = -1
return KmlUtil.wrapKmlDjango("""
<Folder>
%(netLinks)s
<GroundOverlay>
<Icon>
<href>%(tileUrl)s</href>
<refreshMode>onInterval</refreshMode>
<refreshInterval>5</refreshInterval>
</Icon>
%(llBox)s
<drawOrder>%(level)s</drawOrder>
<Region>
%(llaBox)s
<Lod>
<minLodPixels>%(minLodPixels)s</minLodPixels>
<maxLodPixels>%(maxLodPixels)s</maxLodPixels>
</Lod>
</Region>
</GroundOverlay>
<Style>
<ListStyle>
<listItemType>checkHideChildren</listItemType>
</ListStyle>
</Style>
</Folder>
""" % dict(netLinks=netLinks,
llBox=tile.getLatLonBox(bounds),
llaBox=tile.getLatLonAltBox(bounds),
tileUrl=tileUrl,
level=level,
minLodPixels=minLodPixels,
maxLodPixels=maxLodPixels))
def test_getTileBounds(self):
self.assertNearlyEqual(getTileBounds(level=1, x=0, y=0), (-180, -90, 0, 90))
self.assertNearlyEqual(getTileBounds(level=1, x=1, y=0), (0, -90, 180, 90))
self.assertNearlyEqual(getTileBounds(level=3, x=2, y=2), (-90, 0, -45, 45))
def mapTileKml(request, layerId, dayCode, level, x, y):
level = int(level)
x = int(x)
y = int(y)
# make links to sub-tiles if necessary
if level < settings.XGDS_PLOT_MAP_ZOOM_RANGE[1] - 1:
linkList = []
subLevel = level + 1
for offset in ((0, 0), (0, 1), (1, 0), (1, 1)):
subX = 2 * x + offset[0]
subY = 2 * y + offset[1]
subUrl = (request.build_absolute_uri
(reverse
('xgds_plot_mapTileKml',
args=[layerId, dayCode, subLevel, subX, subY])))
linkList.append("""
<NetworkLink>
<Region>
%(box)s
<Lod>
<minLodPixels>%(minLodPixels)s</minLodPixels>
<maxLodPixels>-1</maxLodPixels>
</Lod>
</Region>
<Link>
<href>%(subUrl)s</href>
<viewRefreshMode>onRegion</viewRefreshMode>
</Link>
</NetworkLink>
""" %
dict(box=tile.getLatLonAltBox(tile.getTileBounds(subLevel, subX, subY)),
subUrl=subUrl,
minLodPixels=settings.XGDS_PLOT_MAP_PIXELS_PER_TILE // 2))
netLinks = '\n'.join(linkList)
else:
netLinks = ''
#tileUrl = request.build_absolute_uri(reverse('mapTileImage', args=[level, x, y]))
tileUrl = request.build_absolute_uri('%s/%s/%s/%d/%d/%d.png'
% (MAP_DATA_PATH,
layerId,
dayCode,
level, x, y))
bounds = tile.getTileBounds(level, x, y)
minZoom, maxZoom = settings.XGDS_PLOT_MAP_ZOOM_RANGE
if level < maxZoom - 1:
maxLodPixels = settings.XGDS_PLOT_MAP_PIXELS_PER_TILE * 2
else:
maxLodPixels = -1
if level > minZoom:
minLodPixels = settings.XGDS_PLOT_MAP_PIXELS_PER_TILE // 2
else:
minLodPixels = -1
return KmlUtil.wrapKmlDjango("""
<Folder>
%(netLinks)s
<GroundOverlay>
<Icon>
<href>%(tileUrl)s</href>
<refreshMode>onInterval</refreshMode>
<refreshInterval>5</refreshInterval>
</Icon>
%(llBox)s
<drawOrder>%(level)s</drawOrder>
<Region>
%(llaBox)s
<Lod>
<minLodPixels>%(minLodPixels)s</minLodPixels>
<maxLodPixels>%(maxLodPixels)s</maxLodPixels>
</Lod>
</Region>
</GroundOverlay>
<Style>
<ListStyle>
<listItemType>checkHideChildren</listItemType>
</ListStyle>
</Style>
</Folder>
""" % dict(netLinks=netLinks,
llBox=tile.getLatLonBox(bounds),
llaBox=tile.getLatLonAltBox(bounds),
tileUrl=tileUrl,
level=level,
minLodPixels=minLodPixels,
maxLodPixels=maxLodPixels))