def test_stroke_dash_arrays():
s = mapnik2.Stroke()
s.add_dash(1,2)
s.add_dash(3,4)
s.add_dash(5,6)
eq_(s.get_dashes(), [(1,2),(3,4),(5,6)])
def test_linesymbolizer_init():
l = mapnik2.LineSymbolizer()
eq_(l.stroke.width, 1)
eq_(l.stroke.opacity, 1)
eq_(l.stroke.color, mapnik2.Color('black'))
eq_(l.stroke.line_cap, mapnik2.line_cap.BUTT_CAP)
eq_(l.stroke.line_join, mapnik2.line_join.MITER_JOIN)
l = mapnik2.LineSymbolizer(mapnik2.Color('blue'), 5.0)
eq_(l.stroke.width, 5)
eq_(l.stroke.opacity, 1)
eq_(l.stroke.color, mapnik2.Color('blue'))
eq_(l.stroke.line_cap, mapnik2.line_cap.BUTT_CAP)
eq_(l.stroke.line_join, mapnik2.line_join.MITER_JOIN)
s = mapnik2.Stroke(mapnik2.Color('blue'), 5.0)
l = mapnik2.LineSymbolizer(s)
eq_(l.stroke.width, 5)
eq_(l.stroke.opacity, 1)
eq_(l.stroke.color, mapnik2.Color('blue'))
eq_(l.stroke.line_cap, mapnik2.line_cap.BUTT_CAP)
eq_(l.stroke.line_join, mapnik2.line_join.MITER_JOIN)
def stroke_to_mapnik(stroke):
m_stroke = mapnik.Stroke()
for css in stroke.CssParameter:
if css.get('name') == 'stroke':
m_stroke.color = mapnik.Color(css.text)
elif css.get('name') == 'stroke-width':
m_stroke.width = float(css.text)
elif css.get('name') == 'stroke-opacity':
m_stroke.opacity = float(css.text)
elif css.get('name') == 'stroke-dasharray':
dashes = map(float, css.text.strip().split(' '))
assert len(dashes) % 2 == 0, dashes
for i in xrange(0, len(dashes), 2):
m_stroke.add_dash(dashes[i], dashes[i + 1])
elif css.get('name') == 'stroke-linecap':
m_stroke.line_cap = get_cap(css.text)
elif css.get('name') == 'stroke-join':
m_stroke.line_join = get_join(css.text)
elif css.get('name') == 'stroke-linejoin':
m_stroke.line_join = get_join(css.text)
elif css.get('name') == 'stroke-dashoffset':
m_stroke.dash_offset = float(css.text)
else:
raise Exception('unhanded: ' + css.get('name'))
return m_stroke
def test_stroke_init():
s = mapnik2.Stroke()
eq_(s.width, 1)
eq_(s.opacity, 1)
eq_(s.color, mapnik2.Color('black'))
eq_(s.line_cap, mapnik2.line_cap.BUTT_CAP)
eq_(s.line_join, mapnik2.line_join.MITER_JOIN)
eq_(s.gamma,1.0)
s = mapnik2.Stroke(mapnik2.Color('blue'), 5.0)
s.gamma = .5
eq_(s.width, 5)
eq_(s.opacity, 1)
eq_(s.color, mapnik2.Color('blue'))
eq_(s.gamma, .5)
eq_(s.line_cap, mapnik2.line_cap.BUTT_CAP)
eq_(s.line_join, mapnik2.line_join.MITER_JOIN)
def to_mapnik(self):
stroke = mapnik.Stroke(mapnik.Color(str(self.color)), self.width)
stroke.opacity = self.opacity or stroke.opacity
stroke.line_cap = self.cap or stroke.line_cap
stroke.line_join = self.join or stroke.line_join
if self.dashes:
stroke.add_dash(*self.dashes.values)
sym = mapnik.LineSymbolizer(stroke)
return sym
def test_stroke_pickle():
s = mapnik2.Stroke(mapnik2.Color('black'),4.5)
eq_(s.width, 4.5)
eq_(s.color, mapnik2.Color('black'))
s.add_dash(1,2)
s.add_dash(3,4)
s.add_dash(5,6)
s2 = pickle.loads(pickle.dumps(s,pickle.HIGHEST_PROTOCOL))
eq_(s.color, s2.color)
eq_(s.width, s2.width)
eq_(s.opacity, s2.opacity)
eq_(s.get_dashes(), s2.get_dashes())
eq_(s.line_cap, s2.line_cap)
eq_(s.line_join, s2.line_join)
ondrain_lyr = mapnik2.Layer('Ontario Hydrography')
ondrain_lyr.srs = "+proj=lcc +ellps=GRS80 +lat_0=49 +lon_0=-95 +lat+1=49 +lat_2=77 +datum=NAD83 +units=m +no_defs"
ondrain_lyr.datasource = mapnik2.Shapefile(file='../data/ontdrainage')
ondrain_lyr.styles.append('drainage')
m.layers.append(ondrain_lyr)
# Provincial boundaries
provlines_lyr = mapnik2.Layer('Provincial borders')
provlines_lyr.srs = "+proj=lcc +ellps=GRS80 +lat_0=49 +lon_0=-95 +lat+1=49 +lat_2=77 +datum=NAD83 +units=m +no_defs"
provlines_lyr.datasource = mapnik2.Shapefile(file='../data/boundaries_l')
# Here we define a "dash dot dot dash" pattern for the provincial boundaries.
provlines_stk = mapnik2.Stroke()
provlines_stk.add_dash(8, 4)
provlines_stk.add_dash(2, 2)
provlines_stk.add_dash(2, 2)
provlines_stk.color = mapnik2.Color('black')
provlines_stk.width = 1.0
provlines_style = mapnik2.Style()
provlines_rule = mapnik2.Rule()
provlines_rule.symbols.append(mapnik2.LineSymbolizer(provlines_stk))
provlines_style.rules.append(provlines_rule)
m.append_style('provlines', provlines_style)
provlines_lyr.styles.append('provlines')
m.layers.append(provlines_lyr)
