getShapefiles = lambda x: x.endswith('.shp')
shapefilesNames = filter(getShapefiles, os.listdir(basePath))
bucket = getBucket()
bucketBasePath = tmsConfig.get('General', 'bucketpath')
for f in shapefilesNames:
filePathSource = basePath + f
shapefile = ShpToGDALFeatures(shpFilePath=filePathSource)
features = shapefile.__read__()
terrainTopo = TerrainTopology(features=features)
terrainTopo.fromGDALFeatures()
terrainFormat = TerrainTile()
terrainFormat.fromTerrainTopology(terrainTopo)
fileObject = terrainFormat.toStringIO()
compressedFile = gzipFileObject(fileObject)
# Hardcoded scheme because we don't have any separators in the names
# for now
keyPath = f[1:3] + '/' + f[3:9] + '/' + f[9:14] + extension
print 'Writing %s to S3' % keyPath
writeToS3(bucket, keyPath, compressedFile, basePath, bucketBasePath,
contentType=terrainFormat.getContentType())
i += 1
t1 = time.time()
ti = t1 - t0
print 'It took %s secs to write %s/%s tiles' % (
str(datetime.timedelta(seconds=ti)), i, len(shapefilesNames)
)
getShapefiles = lambda x: x.endswith('.shp')
shapefilesNames = filter(getShapefiles, os.listdir(basePath))
bucket = getBucket()
bucketBasePath = tmsConfig.get('General', 'bucketpath')
for f in shapefilesNames:
filePathSource = basePath + f
shapefile = ShpToGDALFeatures(shpFilePath=filePathSource)
features = shapefile.__read__()
terrainTopo = TerrainTopology(features=features)
terrainTopo.fromGDALFeatures()
terrainFormat = TerrainTile()
terrainFormat.fromTerrainTopology(terrainTopo)
fileObject = terrainFormat.toStringIO()
compressedFile = gzipFileObject(fileObject)
# Hardcoded scheme because we don't have any separators in the names
# for now
keyPath = f[1:3] + '/' + f[3:9] + '/' + f[9:14] + extension
print 'Writing %s to S3' % keyPath
writeToS3(bucket,
keyPath,
compressedFile,
basePath,
bucketBasePath,
contentType=terrainFormat.getContentType())
i += 1
t1 = time.time()
ti = t1 - t0
def createTile(tile):
session = None
pid = os.getpid()
try:
(bounds, tileXYZ, t0, dbConfigFile, bucketBasePath,
hasLighting, hasWatermask) = tile
db = DB(dbConfigFile)
with db.userSession() as session:
bucket = getBucket()
# Get the model according to the zoom level
model = modelsPyramid.getModelByZoom(tileXYZ[2])
watermask = []
if hasWatermask:
lakeModel = modelsPyramid.getLakeModelByZoom(tileXYZ[2])
query = session.query(
lakeModel.watermaskRasterize(bounds).label('watermask')
)
for q in query:
watermask = q.watermask
# Get the interpolated point at the 4 corners
# 0: (minX, minY), 1: (minX, maxY), 2: (maxX, maxY), 3: (maxX, minY)
pts = [
(bounds[0], bounds[1], 0),
(bounds[0], bounds[3], 0),
(bounds[2], bounds[3], 0),
(bounds[2], bounds[1], 0)
]
def toSubQuery(x):
return session.query(
model.id, model.interpolateHeightOnPlane(pts[x])
).filter(
and_(
model.bboxIntersects(createBBox(pts[x], 0.01)),
model.pointIntersects(pts[x])
)
).subquery('p%s' % x)
subqueries = [toSubQuery(i) for i in range(0, len(pts))]
# Get the height of the corner points as postgis cannot properly
# clip a polygon
cornerPts = {}
step = 2
j = step
query = session.query(*subqueries)
for q in query:
for i in range(0, len(q), step):
sub = q[i:j]
j += step
cornerPts[sub[0]] = list(
to_shape(WKBElement(sub[1])).coords
)
# Clip using the bounds
clippedGeometry = model.bboxClippedGeom(bounds)
query = session.query(
model.id,
clippedGeometry.label('clip')
).filter(model.bboxIntersects(bounds))
terrainTopo = TerrainTopology(hasLighting=hasLighting)
for q in query:
coords = list(to_shape(q.clip).exterior.coords)
if q.id in cornerPts:
pt = cornerPts[q.id][0]
for i in range(0, len(coords)):
c = coords[i]
if c[0] == pt[0] and c[1] == pt[1]:
coords[i] = [c[0], c[1], pt[2]]
try:
rings = processRingCoordinates(coords)
except Exception as e:
msg = '[%s] --------- ERROR ------- occured while ' \
'collapsing non triangular shapes\n' % pid
msg += '[%s]: %s' % (pid, e)
logger.error(msg, exc_info=True)
raise Exception(e)
# Redundant coord has been remove already
for vertices in rings:
terrainTopo.addVertices(vertices)
bucketKey = '%s/%s/%s.terrain' % (
tileXYZ[2], tileXYZ[0], tileXYZ[1])
verticesLength = len(terrainTopo.vertices)
if verticesLength > 0:
terrainTopo.create()
# Prepare terrain tile
terrainFormat = TerrainTile(watermask=watermask)
terrainFormat.fromTerrainTopology(terrainTopo, bounds=bounds)
# Bytes manipulation and compression
fileObject = terrainFormat.toStringIO()
compressedFile = gzipFileObject(fileObject)
writeToS3(
bucket, bucketKey, compressedFile, model.__tablename__,
bucketBasePath, contentType=terrainFormat.getContentType()
)
tend = time.time()
tilecount.value += 1
val = tilecount.value
total = val + skipcount.value
if val % 10 == 0:
logger.info('[%s] Last tile %s (%s rings). '
'%s to write %s tiles. (total processed: %s)' % (
pid, bucketKey, verticesLength,
str(datetime.timedelta(seconds=tend - t0)),
val, total
)
)
else:
skipcount.value += 1
val = skipcount.value
total = val + tilecount.value
# One should write an empyt tile
logger.info('[%s] Skipping %s %s because no features found '
'for this tile (%s skipped from %s total)' % (
pid, bucketKey, bounds, val, total
)
)
except Exception as e:
logger.error(e, exc_info=True)
raise Exception(e)
finally:
db.userEngine.dispose()
return 0
def createTile(tile):
session = None
pid = os.getpid()
try:
(bounds, tileXYZ, t0, dbConfigFile, bucketBasePath, hasLighting,
hasWatermask) = tile
db = DB(dbConfigFile)
with db.userSession() as session:
bucket = getBucket()
# Get the model according to the zoom level
model = modelsPyramid.getModelByZoom(tileXYZ[2])
watermask = []
if hasWatermask:
lakeModel = modelsPyramid.getLakeModelByZoom(tileXYZ[2])
query = session.query(
lakeModel.watermaskRasterize(bounds).label('watermask'))
for q in query:
watermask = q.watermask
# Get the interpolated point at the 4 corners
# 0: (minX, minY), 1: (minX, maxY), 2: (maxX, maxY), 3: (maxX, minY)
pts = [(bounds[0], bounds[1], 0), (bounds[0], bounds[3], 0),
(bounds[2], bounds[3], 0), (bounds[2], bounds[1], 0)]
def toSubQuery(x):
return session.query(
model.id, model.interpolateHeightOnPlane(pts[x])).filter(
and_(model.bboxIntersects(createBBox(pts[x], 0.01)),
model.pointIntersects(pts[x]))).subquery('p%s' %
x)
subqueries = [toSubQuery(i) for i in range(0, len(pts))]
# Get the height of the corner points as postgis cannot properly
# clip a polygon
cornerPts = {}
step = 2
j = step
query = session.query(*subqueries)
for q in query:
for i in range(0, len(q), step):
sub = q[i:j]
j += step
cornerPts[sub[0]] = list(
to_shape(WKBElement(sub[1])).coords)
# Clip using the bounds
clippedGeometry = model.bboxClippedGeom(bounds)
query = session.query(model.id,
clippedGeometry.label('clip')).filter(
model.bboxIntersects(bounds))
terrainTopo = TerrainTopology(hasLighting=hasLighting)
for q in query:
coords = list(to_shape(q.clip).exterior.coords)
if q.id in cornerPts:
pt = cornerPts[q.id][0]
for i in range(0, len(coords)):
c = coords[i]
if c[0] == pt[0] and c[1] == pt[1]:
coords[i] = [c[0], c[1], pt[2]]
try:
rings = processRingCoordinates(coords)
except Exception as e:
msg = '[%s] --------- ERROR ------- occured while ' \
'collapsing non triangular shapes\n' % pid
msg += '[%s]: %s' % (pid, e)
logger.error(msg, exc_info=True)
raise Exception(e)
# Redundant coord has been remove already
for vertices in rings:
terrainTopo.addVertices(vertices)
bucketKey = '%s/%s/%s.terrain' % (tileXYZ[2], tileXYZ[0],
tileXYZ[1])
verticesLength = len(terrainTopo.vertices)
if verticesLength > 0:
terrainTopo.create()
# Prepare terrain tile
terrainFormat = TerrainTile(watermask=watermask)
terrainFormat.fromTerrainTopology(terrainTopo, bounds=bounds)
# Bytes manipulation and compression
fileObject = terrainFormat.toStringIO()
compressedFile = gzipFileObject(fileObject)
writeToS3(bucket,
bucketKey,
compressedFile,
model.__tablename__,
bucketBasePath,
contentType=terrainFormat.getContentType())
tend = time.time()
tilecount.value += 1
val = tilecount.value
total = val + skipcount.value
if val % 10 == 0:
logger.info('[%s] Last tile %s (%s rings). '
'%s to write %s tiles. (total processed: %s)' %
(pid, bucketKey, verticesLength,
str(datetime.timedelta(seconds=tend - t0)),
val, total))
else:
skipcount.value += 1
val = skipcount.value
total = val + tilecount.value
# One should write an empyt tile
logger.info('[%s] Skipping %s %s because no features found '
'for this tile (%s skipped from %s total)' %
(pid, bucketKey, bounds, val, total))
except Exception as e:
logger.error(e, exc_info=True)
raise Exception(e)
finally:
db.userEngine.dispose()
return 0
