def _test_rgba_8bui_rendering(lbl, overview, rescale, clip):
if rescale:
lbl += ' Sc'
if clip:
lbl += ' Cl'
ds = mapnik.PgRaster(dbname=MAPNIK_TEST_DBNAME, table='(select * from "River") foo',
use_overviews=1 if overview else 0,
prescale_rasters=rescale, clip_rasters=clip)
fs = ds.featureset()
feature = fs.next()
eq_(feature['rid'], 1)
lyr = mapnik.Layer('rgba_8bui')
lyr.datasource = ds
expenv = mapnik.Box2d(0, -210, 256, 0)
env = lyr.envelope()
# As the input size is a prime number both horizontally
# and vertically, we expect the extent of the overview
# tables to be a pixel wider than the original, whereas
# the pixel size in geographical units depends on the
# overview factor. So we start with the original pixel size
# as base scale and multiply by the overview factor.
# NOTE: the overview table extent only grows north and east
pixsize = 1 # see gdalinfo river.tif
tol = pixsize * max(overview.split(',')) if overview else 0
assert_almost_equal(env.minx, expenv.minx)
assert_almost_equal(env.miny, expenv.miny, delta=tol)
assert_almost_equal(env.maxx, expenv.maxx, delta=tol)
assert_almost_equal(env.maxy, expenv.maxy)
mm = mapnik.Map(256, 256)
style = mapnik.Style()
sym = mapnik.RasterSymbolizer()
rule = mapnik.Rule()
rule.symbols.append(sym)
style.rules.append(rule)
mm.append_style('foo', style)
lyr.styles.append('foo')
mm.layers.append(lyr)
mm.zoom_to_box(expenv)
im = mapnik.Image(mm.width, mm.height)
t0 = time.time() # we want wall time to include IO waits
mapnik.render(mm, im)
lap = time.time() - t0
log('T ' + str(lap) + ' -- ' + lbl + ' E:full')
expected = 'images/support/pgraster/%s-%s-%s-%s-box1.png' % (
lyr.name, lbl, overview, clip)
compare_images(expected, im)
# no data
eq_(hexlify(im.view(3, 3, 1, 1).tostring()), b'00000000')
eq_(hexlify(im.view(250, 250, 1, 1).tostring()), b'00000000')
# full opaque river color
eq_(hexlify(im.view(175, 118, 1, 1).tostring()), b'b9d8f8ff')
# half-transparent pixel
pxstr = hexlify(im.view(122, 138, 1, 1).tostring()).decode()
apat = ".*(..)$"
match = re.match(apat, pxstr)
assert match, 'pixel ' + pxstr + ' does not match pattern ' + apat
alpha = match.group(1)
assert alpha != 'ff' and alpha != '00', \
'unexpected full transparent/opaque pixel: ' + alpha
# Now zoom over a portion of the env (1/10)
newenv = mapnik.Box2d(166, -105, 191, -77)
mm.zoom_to_box(newenv)
t0 = time.time() # we want wall time to include IO waits
im = mapnik.Image(mm.width, mm.height)
mapnik.render(mm, im)
lap = time.time() - t0
log('T ' + str(lap) + ' -- ' + lbl + ' E:1/10')
expected = 'images/support/pgraster/%s-%s-%s-%s-box2.png' % (
lyr.name, lbl, overview, clip)
compare_images(expected, im)
# no data
eq_(hexlify(im.view(255, 255, 1, 1).tostring()), b'00000000')
eq_(hexlify(im.view(200, 40, 1, 1).tostring()), b'00000000')
# full opaque river color
eq_(hexlify(im.view(100, 168, 1, 1).tostring()), b'b9d8f8ff')
# half-transparent pixel
pxstr = hexlify(im.view(122, 138, 1, 1).tostring()).decode()
apat = ".*(..)$"
match = re.match(apat, pxstr)
assert match, 'pixel ' + pxstr + ' does not match pattern ' + apat
alpha = match.group(1)
assert alpha != 'ff' and alpha != '00', \
'unexpected full transparent/opaque pixel: ' + alpha
def _test_dataraster_16bsi_rendering(lbl, overview, rescale, clip):
if rescale:
lbl += ' Sc'
if clip:
lbl += ' Cl'
ds = mapnik.PgRaster(dbname=MAPNIK_TEST_DBNAME, table='"dataRaster"',
band=1, use_overviews=1 if overview else 0,
prescale_rasters=rescale, clip_rasters=clip)
fs = ds.featureset()
feature = fs.next()
eq_(feature['rid'], 1)
lyr = mapnik.Layer('dataraster_16bsi')
lyr.datasource = ds
expenv = mapnik.Box2d(-14637, 3903178, 1126863, 4859678)
env = lyr.envelope()
# As the input size is a prime number both horizontally
# and vertically, we expect the extent of the overview
# tables to be a pixel wider than the original, whereas
# the pixel size in geographical units depends on the
# overview factor. So we start with the original pixel size
# as base scale and multiply by the overview factor.
# NOTE: the overview table extent only grows north and east
pixsize = 500 # see gdalinfo dataraster.tif
pixsize = 2497 # see gdalinfo dataraster-small.tif
tol = pixsize * max(overview.split(',')) if overview else 0
assert_almost_equal(env.minx, expenv.minx)
assert_almost_equal(env.miny, expenv.miny, delta=tol)
assert_almost_equal(env.maxx, expenv.maxx, delta=tol)
assert_almost_equal(env.maxy, expenv.maxy)
mm = mapnik.Map(256, 256)
style = mapnik.Style()
col = mapnik.RasterColorizer()
col.default_mode = mapnik.COLORIZER_DISCRETE
col.add_stop(0, mapnik.Color(0x40, 0x40, 0x40, 255))
col.add_stop(10, mapnik.Color(0x80, 0x80, 0x80, 255))
col.add_stop(20, mapnik.Color(0xa0, 0xa0, 0xa0, 255))
sym = mapnik.RasterSymbolizer()
sym.colorizer = col
rule = mapnik.Rule()
rule.symbols.append(sym)
style.rules.append(rule)
mm.append_style('foo', style)
lyr.styles.append('foo')
mm.layers.append(lyr)
mm.zoom_to_box(expenv)
im = mapnik.Image(mm.width, mm.height)
t0 = time.time() # we want wall time to include IO waits
mapnik.render(mm, im)
lap = time.time() - t0
log('T ' + str(lap) + ' -- ' + lbl + ' E:full')
# no data
eq_(im.view(1, 1, 1, 1).tostring(), b'\x00\x00\x00\x00')
eq_(im.view(255, 255, 1, 1).tostring(), b'\x00\x00\x00\x00')
eq_(im.view(195, 116, 1, 1).tostring(), b'\x00\x00\x00\x00')
# A0A0A0
eq_(im.view(100, 120, 1, 1).tostring(), b'\xa0\xa0\xa0\xff')
eq_(im.view(75, 80, 1, 1).tostring(), b'\xa0\xa0\xa0\xff')
# 808080
eq_(im.view(74, 170, 1, 1).tostring(), b'\x80\x80\x80\xff')
eq_(im.view(30, 50, 1, 1).tostring(), b'\x80\x80\x80\xff')
# 404040
eq_(im.view(190, 70, 1, 1).tostring(), b'\x40\x40\x40\xff')
eq_(im.view(140, 170, 1, 1).tostring(), b'\x40\x40\x40\xff')
# Now zoom over a portion of the env (1/10)
newenv = mapnik.Box2d(273663, 4024478, 330738, 4072303)
mm.zoom_to_box(newenv)
t0 = time.time() # we want wall time to include IO waits
mapnik.render(mm, im)
lap = time.time() - t0
log('T ' + str(lap) + ' -- ' + lbl + ' E:1/10')
# nodata
eq_(hexlify(im.view(255, 255, 1, 1).tostring()), b'00000000')
eq_(hexlify(im.view(200, 254, 1, 1).tostring()), b'00000000')
# A0A0A0
eq_(hexlify(im.view(90, 232, 1, 1).tostring()), b'a0a0a0ff')
eq_(hexlify(im.view(96, 245, 1, 1).tostring()), b'a0a0a0ff')
# 808080
eq_(hexlify(im.view(1, 1, 1, 1).tostring()), b'808080ff')
eq_(hexlify(im.view(128, 128, 1, 1).tostring()), b'808080ff')
# 404040
eq_(hexlify(im.view(255, 0, 1, 1).tostring()), b'404040ff')
def _test_rgba_subquery(lbl, pixtype, r, g, b, a, g1, b1):
#
# 3 8 13
# +---+---+---+
# 3 | v | v | h | NOTE: writes different alpha
# +---+---+---+ in 13,8 and 8,13
# 8 | v | v | a |
# +---+---+---+
# 13 | v | b | v |
# +---+---+---+
#
sql = "(select 3 as i, " \
" ST_SetValues(" \
" ST_SetValues(" \
" ST_AddBand(" \
" ST_AddBand(" \
" ST_AddBand(" \
" ST_AsRaster(" \
" ST_MakeEnvelope(0,0,14,14), " \
" 1.0, -1.0, '%s', %s" \
" )," \
" '%s', %d::float" \
" ), " \
" '%s', %d::float" \
" ), " \
" '%s', %d::float" \
" ), " \
" 2, 11, 6, 4, 5, %s::float8" \
" )," \
" 3, 6, 11, 5, 4, %s::float8" \
" ) as r" \
") as foo" % (
pixtype,
r,
pixtype,
g,
pixtype,
b,
pixtype,
a,
g1,
b1)
overview = ''
rescale = 0
clip = 0
if rescale:
lbl += ' Sc'
if clip:
lbl += ' Cl'
ds = mapnik.PgRaster(dbname=MAPNIK_TEST_DBNAME,
table=sql,
raster_field='r',
use_overviews=0 if overview else 0,
prescale_rasters=rescale,
clip_rasters=clip)
fs = ds.featureset()
feature = fs.next()
eq_(feature['i'], 3)
lyr = mapnik.Layer('rgba_subquery')
lyr.datasource = ds
expenv = mapnik.Box2d(0, 0, 14, 14)
env = lyr.envelope()
assert_almost_equal(env.minx, expenv.minx, places=0)
assert_almost_equal(env.miny, expenv.miny, places=0)
assert_almost_equal(env.maxx, expenv.maxx, places=0)
assert_almost_equal(env.maxy, expenv.maxy, places=0)
mm = mapnik.Map(15, 15)
style = mapnik.Style()
sym = mapnik.RasterSymbolizer()
rule = mapnik.Rule()
rule.symbols.append(sym)
style.rules.append(rule)
mm.append_style('foo', style)
lyr.styles.append('foo')
mm.layers.append(lyr)
mm.zoom_to_box(expenv)
im = mapnik.Image(mm.width, mm.height)
t0 = time.time() # we want wall time to include IO waits
mapnik.render(mm, im)
lap = time.time() - t0
log('T ' + str(lap) + ' -- ' + lbl + ' E:full')
expected = 'images/support/pgraster/%s-%s-%s-%s-%s-%s-%s-%s-%s.png' % (
lyr.name, lbl, pixtype, r, g, b, a, g1, b1)
compare_images(expected, im)
hex_v = format(r << 24 | g << 16 | b << 8 | a, '08x').encode()
hex_a = format(r << 24 | g1 << 16 | b << 8 | a, '08x').encode()
hex_b = format(r << 24 | g << 16 | b1 << 8 | a, '08x').encode()
eq_(hexlify(im.view(3, 3, 1, 1).tostring()), hex_v)
eq_(hexlify(im.view(8, 3, 1, 1).tostring()), hex_v)
eq_(hexlify(im.view(13, 3, 1, 1).tostring()), hex_v)
eq_(hexlify(im.view(3, 8, 1, 1).tostring()), hex_v)
eq_(hexlify(im.view(8, 8, 1, 1).tostring()), hex_v)
eq_(hexlify(im.view(13, 8, 1, 1).tostring()), hex_a)
eq_(hexlify(im.view(3, 13, 1, 1).tostring()), hex_v)
eq_(hexlify(im.view(8, 13, 1, 1).tostring()), hex_b)
eq_(hexlify(im.view(13, 13, 1, 1).tostring()), hex_v)
def _test_data_subquery(lbl, pixtype, value):
#
# 3 8 13
# +---+---+---+
# 3 | v | v | v | NOTE: writes different values
# +---+---+---+ in 13,8 and 8,13
# 8 | v | v | a |
# +---+---+---+
# 13 | v | b | v |
# +---+---+---+
#
val_a = value / 3
val_b = val_a * 2
sql = "(select 3 as i, " \
" ST_SetValues(" \
" ST_SetValues(" \
" ST_AsRaster(" \
" ST_MakeEnvelope(0,0,14,14), " \
" 1.0, -1.0, '%s', %s" \
" ), " \
" 11, 6, 5, 5, %s::float8" \
" )," \
" 6, 11, 5, 5, %s::float8" \
" ) as \"R\"" \
") as foo" % (pixtype, value, val_a, val_b)
overview = ''
rescale = 0
clip = 0
if rescale:
lbl += ' Sc'
if clip:
lbl += ' Cl'
ds = mapnik.PgRaster(dbname=MAPNIK_TEST_DBNAME,
table=sql,
raster_field='R',
use_overviews=0 if overview else 0,
band=1,
prescale_rasters=rescale,
clip_rasters=clip)
fs = ds.featureset()
feature = fs.next()
eq_(feature['i'], 3)
lyr = mapnik.Layer('data_subquery')
lyr.datasource = ds
expenv = mapnik.Box2d(0, 0, 14, 14)
env = lyr.envelope()
assert_almost_equal(env.minx, expenv.minx, places=0)
assert_almost_equal(env.miny, expenv.miny, places=0)
assert_almost_equal(env.maxx, expenv.maxx, places=0)
assert_almost_equal(env.maxy, expenv.maxy, places=0)
mm = mapnik.Map(15, 15)
style = mapnik.Style()
col = mapnik.RasterColorizer()
col.default_mode = mapnik.COLORIZER_DISCRETE
col.add_stop(val_a, mapnik.Color(0xff, 0x00, 0x00, 255))
col.add_stop(val_b, mapnik.Color(0x00, 0xff, 0x00, 255))
col.add_stop(value, mapnik.Color(0x00, 0x00, 0xff, 255))
sym = mapnik.RasterSymbolizer()
sym.colorizer = col
rule = mapnik.Rule()
rule.symbols.append(sym)
style.rules.append(rule)
mm.append_style('foo', style)
lyr.styles.append('foo')
mm.layers.append(lyr)
mm.zoom_to_box(expenv)
im = mapnik.Image(mm.width, mm.height)
t0 = time.time() # we want wall time to include IO waits
mapnik.render(mm, im)
lap = time.time() - t0
log('T ' + str(lap) + ' -- ' + lbl + ' E:full')
expected = 'images/support/pgraster/%s-%s-%s-%s.png' % (lyr.name, lbl,
pixtype, value)
compare_images(expected, im)
def _test_grayscale_subquery(lbl, pixtype, value):
#
# 3 8 13
# +---+---+---+
# 3 | v | v | v | NOTE: writes different color
# +---+---+---+ in 13,8 and 8,13
# 8 | v | v | a |
# +---+---+---+
# 13 | v | b | v |
# +---+---+---+
#
val_a = int(value / 3)
val_b = val_a * 2
sql = "(select 3 as i, " \
" ST_SetValues(" \
" ST_SetValues(" \
" ST_AsRaster(" \
" ST_MakeEnvelope(0,0,14,14), " \
" 1.0, -1.0, '%s', %s" \
" ), " \
" 11, 6, 4, 5, %s::float8" \
" )," \
" 6, 11, 5, 4, %s::float8" \
" ) as \"R\"" \
") as foo" % (pixtype, value, val_a, val_b)
rescale = 0
clip = 0
if rescale:
lbl += ' Sc'
if clip:
lbl += ' Cl'
ds = mapnik.PgRaster(dbname=MAPNIK_TEST_DBNAME,
table=sql,
raster_field='"R"',
use_overviews=1,
prescale_rasters=rescale,
clip_rasters=clip)
fs = ds.featureset()
feature = fs.next()
eq_(feature['i'], 3)
lyr = mapnik.Layer('grayscale_subquery')
lyr.datasource = ds
expenv = mapnik.Box2d(0, 0, 14, 14)
env = lyr.envelope()
assert_almost_equal(env.minx, expenv.minx, places=0)
assert_almost_equal(env.miny, expenv.miny, places=0)
assert_almost_equal(env.maxx, expenv.maxx, places=0)
assert_almost_equal(env.maxy, expenv.maxy, places=0)
mm = mapnik.Map(15, 15)
style = mapnik.Style()
sym = mapnik.RasterSymbolizer()
rule = mapnik.Rule()
rule.symbols.append(sym)
style.rules.append(rule)
mm.append_style('foo', style)
lyr.styles.append('foo')
mm.layers.append(lyr)
mm.zoom_to_box(expenv)
im = mapnik.Image(mm.width, mm.height)
t0 = time.time() # we want wall time to include IO waits
mapnik.render(mm, im)
lap = time.time() - t0
log('T ' + str(lap) + ' -- ' + lbl + ' E:full')
expected = 'images/support/pgraster/%s-%s-%s-%s.png' % (lyr.name, lbl,
pixtype, value)
compare_images(expected, im)
h = format(value, '02x')
hex_v = h + h + h + 'ff'
hex_v = hex_v.encode()
h = format(val_a, '02x')
hex_a = h + h + h + 'ff'
hex_a = hex_a.encode()
h = format(val_b, '02x')
hex_b = h + h + h + 'ff'
hex_b = hex_b.encode()
eq_(hexlify(im.view(3, 3, 1, 1).tostring()), hex_v)
eq_(hexlify(im.view(8, 3, 1, 1).tostring()), hex_v)
eq_(hexlify(im.view(13, 3, 1, 1).tostring()), hex_v)
eq_(hexlify(im.view(3, 8, 1, 1).tostring()), hex_v)
eq_(hexlify(im.view(8, 8, 1, 1).tostring()), hex_v)
eq_(hexlify(im.view(13, 8, 1, 1).tostring()), hex_a)
eq_(hexlify(im.view(3, 13, 1, 1).tostring()), hex_v)
eq_(hexlify(im.view(8, 13, 1, 1).tostring()), hex_b)
eq_(hexlify(im.view(13, 13, 1, 1).tostring()), hex_v)
def _test_rgb_8bui_rendering(lbl, tnam, overview, rescale, clip):
if rescale:
lbl += ' Sc'
if clip:
lbl += ' Cl'
ds = mapnik.PgRaster(dbname=MAPNIK_TEST_DBNAME,
table=tnam,
use_overviews=1 if overview else 0,
prescale_rasters=rescale,
clip_rasters=clip)
fs = ds.featureset()
feature = fs.next()
eq_(feature['rid'], 1)
lyr = mapnik.Layer('rgba_8bui')
lyr.datasource = ds
expenv = mapnik.Box2d(-12329035.7652168, 4508650.39854396,
-12328653.0279471, 4508957.34625536)
env = lyr.envelope()
# As the input size is a prime number both horizontally
# and vertically, we expect the extent of the overview
# tables to be a pixel wider than the original, whereas
# the pixel size in geographical units depends on the
# overview factor. So we start with the original pixel size
# as base scale and multiply by the overview factor.
# NOTE: the overview table extent only grows north and east
pixsize = 2 # see gdalinfo nodata-edge.tif
tol = pixsize * max(overview.split(',')) if overview else 0
assert_almost_equal(env.minx, expenv.minx, places=0)
assert_almost_equal(env.miny, expenv.miny, delta=tol)
assert_almost_equal(env.maxx, expenv.maxx, delta=tol)
assert_almost_equal(env.maxy, expenv.maxy, places=0)
mm = mapnik.Map(256, 256)
style = mapnik.Style()
sym = mapnik.RasterSymbolizer()
rule = mapnik.Rule()
rule.symbols.append(sym)
style.rules.append(rule)
mm.append_style('foo', style)
lyr.styles.append('foo')
mm.layers.append(lyr)
mm.zoom_to_box(expenv)
im = mapnik.Image(mm.width, mm.height)
t0 = time.time() # we want wall time to include IO waits
mapnik.render(mm, im)
lap = time.time() - t0
log('T ' + str(lap) + ' -- ' + lbl + ' E:full')
expected = 'images/support/pgraster/%s-%s-%s-%s-%s-box1.png' % (
lyr.name, tnam, lbl, overview, clip)
compare_images(expected, im)
# no data
eq_(hexlify(im.view(3, 16, 1, 1).tostring()), b'00000000')
eq_(hexlify(im.view(128, 16, 1, 1).tostring()), b'00000000')
eq_(hexlify(im.view(250, 16, 1, 1).tostring()), b'00000000')
eq_(hexlify(im.view(3, 240, 1, 1).tostring()), b'00000000')
eq_(hexlify(im.view(128, 240, 1, 1).tostring()), b'00000000')
eq_(hexlify(im.view(250, 240, 1, 1).tostring()), b'00000000')
# dark brown
eq_(hexlify(im.view(174, 39, 1, 1).tostring()), b'c3a698ff')
# dark gray
eq_(hexlify(im.view(195, 132, 1, 1).tostring()), b'575f62ff')
# Now zoom over a portion of the env (1/10)
newenv = mapnik.Box2d(-12329035.7652168, 4508926.651484220,
-12328997.49148983, 4508957.34625536)
mm.zoom_to_box(newenv)
t0 = time.time() # we want wall time to include IO waits
im = mapnik.Image(mm.width, mm.height)
mapnik.render(mm, im)
lap = time.time() - t0
log('T ' + str(lap) + ' -- ' + lbl + ' E:1/10')
expected = 'images/support/pgraster/%s-%s-%s-%s-%s-box2.png' % (
lyr.name, tnam, lbl, overview, clip)
compare_images(expected, im)
# no data
eq_(hexlify(im.view(3, 16, 1, 1).tostring()), b'00000000')
eq_(hexlify(im.view(128, 16, 1, 1).tostring()), b'00000000')
eq_(hexlify(im.view(250, 16, 1, 1).tostring()), b'00000000')
# black
eq_(hexlify(im.view(3, 42, 1, 1).tostring()), b'000000ff')
eq_(hexlify(im.view(3, 134, 1, 1).tostring()), b'000000ff')
eq_(hexlify(im.view(3, 244, 1, 1).tostring()), b'000000ff')
# gray
eq_(hexlify(im.view(135, 157, 1, 1).tostring()), b'4e555bff')
# brown
eq_(hexlify(im.view(195, 223, 1, 1).tostring()), b'f2cdbaff')