def testclipbbox(c):
clip = canvas.clip(rect(11,-9,10,5))
p1 = path(moveto(10,-10), curveto(12,-4, 14,-5, 12,-1));
p2 = path(moveto(12,-8), curveto(6,-2, 5,-4, 7,-5));
# just a simple test for clipping
sc = c.insert(canvas.canvas([clip]))
drawpathwbbox(sc, p1)
drawpathwbbox(sc, p2)
# more complicated operations
# 1. transformation followed by clipping:
# in this case, the clipping path will be evaluated in the
# context of the already transformed canvas, so that the
# actually displayed portion of the path should be the same
sc = c.insert(canvas.canvas([trafo.translate(5,0), clip]))
drawpathwbbox(sc, p1)
drawpathwbbox(sc, p2)
# 2. clipping followed by transformation
# in this case, the clipping path will not be transformed, so
# that the display portionof the path should change
sc = c.insert(canvas.canvas([clip, trafo.translate(1,1)]))
drawpathwbbox(sc, p1)
drawpathwbbox(sc, p2)
def testtrafobbox(c):
sc = c.insert(canvas.canvas([trafo.translate(0, 40).rotated(10)]))
p = path(moveto(10, 10), curveto(12, 16, 14, 15, 12, 19))
drawpathwbbox(sc, p)
p = path(moveto(5, 17), curveto(6, 18, 5, 16, 7, 15))
drawpathwbbox(sc, p)
def testclipbbox(c):
clip = canvas.clip(rect(11, -9, 10, 5))
p1 = path(moveto(10, -10), curveto(12, -4, 14, -5, 12, -1))
p2 = path(moveto(12, -8), curveto(6, -2, 5, -4, 7, -5))
# just a simple test for clipping
sc = c.insert(canvas.canvas([clip]))
drawpathwbbox(sc, p1)
drawpathwbbox(sc, p2)
# more complicated operations
# 1. transformation followed by clipping:
# in this case, the clipping path will be evaluated in the
# context of the already transformed canvas, so that the
# actually displayed portion of the path should be the same
sc = c.insert(canvas.canvas([trafo.translate(5, 0), clip]))
drawpathwbbox(sc, p1)
drawpathwbbox(sc, p2)
# 2. clipping followed by transformation
# in this case, the clipping path will not be transformed, so
# that the display portionof the path should change
sc = c.insert(canvas.canvas([clip, trafo.translate(1, 1)]))
drawpathwbbox(sc, p1)
drawpathwbbox(sc, p2)
def testspeedintersect():
p = path(moveto(10, 10), curveto(12, 16, 14, 15, 12, 19))
bp = normpath(p)
for x in range(1, 100):
q = path(moveto(x / 5.0, 10), curveto(12, 16, 14, 22, 11, 16))
bq = normpath(q)
isect = bp.intersect(bq, epsilon=1e-3)
def testspeedintersect():
p=path(moveto(10,10), curveto(12,16,14,15,12,19))
bp=normpath(p)
for x in range(1,100):
q=path(moveto(x/5.0,10), curveto(12,16,14,22,11,16))
bq=normpath(q)
isect = bp.intersect(bq, epsilon=1e-3)
def testintersectbezier(c):
p = path(moveto(0, 0), curveto(2, 6, 4, 5, 2, 9)).normpath(epsilon=1e-4)
q = path(moveto(2, 0), curveto(2, 6, 4, 12, 1, 6)).normpath(epsilon=1e-4)
c.stroke(q, [style.linewidth.THIN])
c.stroke(p, [style.linewidth.THIN])
isect = p.intersect(q)
for i in isect[0]:
x, y = p.at(i)
c.stroke(cross(x, y), [style.linewidth.THIN])
def testintersectbezier(c):
p=path(moveto(0,0), curveto(2,6,4,5,2,9)).normpath(epsilon=1e-4)
q=path(moveto(2,0), curveto(2,6,4,12,1,6)).normpath(epsilon=1e-4)
c.stroke(q, [style.linewidth.THIN])
c.stroke(p, [style.linewidth.THIN])
isect = p.intersect(q)
for i in isect[0]:
x, y = p.at(i)
c.stroke(cross(x, y), [style.linewidth.THIN])
def testnormpathtrafo(c):
p = path(moveto(0, 5), curveto(2, 1, 4, 0, 2, 4),
rcurveto(-3, 2, 1, 2, 3, 6), rlineto(0, 3), closepath())
c.stroke(p)
c.stroke(p.normpath(), [color.rgb.green, style.linestyle.dashed])
c.stroke(p, [trafo.translate(3, 1), color.rgb.red])
c.insert(canvas.canvas([trafo.translate(3, 1)])).stroke(
p, [color.rgb.green, style.linestyle.dashed])
c.stroke(p.reversed(),
[color.rgb.blue, style.linestyle.dotted, style.linewidth.THick])
c.stroke(cross(*(p.at(0))))
c.stroke(cross(*(p.reversed().at(0))))
p1, p2 = p.split([1.0, 2.1])
c.stroke(p1, [color.rgb.red, style.linestyle.dashed])
c.stroke(p2, [color.rgb.green, style.linestyle.dashed])
circ1 = circle(0, 10, 1)
circ2 = circle(1.7, 10, 1)
c.stroke(circ1)
c.stroke(circ2)
isectcirc1, isectcirc2 = circ1.intersect(circ2)
segment1 = circ1.split(isectcirc1)[0]
segment2 = circ2.split(isectcirc2)[1]
segment = segment1 << segment2
segment[-1].close()
c.stroke(segment, [style.linewidth.THick, deco.filled([color.rgb.green])])
def testtangent(c):
p = path(moveto(0, 5), curveto(2, 1, 4, 0, 2, 4),
rcurveto(-3, 2, 1, 2, 3, 6), rlineto(2, 3)) + circle(5, 5, 1)
c.stroke(p, [style.linewidth.THick])
arclen = p.arclen()
points = 20
for i in range(points):
c.stroke(p.tangent(arclen * i / points, length=20 * unit.t_pt),
[color.rgb.blue, deco.earrow.normal])
c.stroke(
line(0, 0, 1, 0).transformed(p.trafo(arclen * i / points)),
[color.rgb.green, deco.earrow.normal])
c.stroke(
line(0, 0, 0, 1).transformed(p.trafo(arclen * i / points)),
[color.rgb.red, deco.earrow.normal])
# test the curvature
cc = canvas.canvas()
cc.stroke(p)
cc = canvas.canvas([canvas.clip(cc.bbox().path())])
for i in range(points):
curvature_pt = p.curvature_pt(unit.topt(arclen) * i / points)
if curvature_pt != 0:
radius_pt = 1 / curvature_pt
x_pt, y_pt = p.trafo(arclen * i / points).apply_pt(0, radius_pt)
cc.stroke(circle_pt(x_pt, y_pt, radius_pt), [color.grey(0.5)])
c.insert(cc)
def testarct(c, r, x0, y0, dx1, dy1, dx2, dy2):
p = path(moveto(x0, y0), arct(x0 + dx1, y0 + dy1, x0 + dx2, y0 + dy2,
r), rlineto(dx2 - dx1, dy2 - dy1),
closepath())
np = p.normpath()
c.stroke(p, [color.rgb.red, style.linewidth.Thick])
c.stroke(np, [
color.rgb.green, style.linewidth.THin,
deco.filled([color.rgb.green])
])
def testspeed3():
"coordinates in pts (internal routines)"
c = canvas.canvas()
p = path(pyx.path.moveto_pt(0, 0))
for i in range(1000):
p.append(pyx.path.lineto_pt(i, i))
c.stroke(p)
c.writeEPSfile("testspeed")
def testspeed():
"coordinates as strings"
c=canvas.canvas()
p=path(moveto(0,0))
for i in range(1000):
p.append(lineto("%d pt" % i, "%d pt" % i))
c.stroke(p)
c.writeEPSfile("testspeed")
def testspeed3():
"coordinates in pts (internal routines)"
c=canvas.canvas()
p=path(pyx.path.moveto_pt(0,0))
for i in range(1000):
p.append(pyx.path.lineto_pt(i, i))
c.stroke(p)
c.writeEPSfile("testspeed")
def testspeed2():
"coordinates in user units"
c=canvas.canvas()
p=path(moveto(0,0))
for i in range(1000):
p.append(lineto(i,i))
c.stroke(p)
c.writeEPSfile("testspeed")
def testspeed():
"coordinates as strings"
c = canvas.canvas()
p = path(moveto(0, 0))
for i in range(1000):
p.append(lineto("%d pt" % i, "%d pt" % i))
c.stroke(p)
c.writeEPSfile("testspeed")
def testspeed2():
"coordinates in user units"
c = canvas.canvas()
p = path(moveto(0, 0))
for i in range(1000):
p.append(lineto(i, i))
c.stroke(p)
c.writeEPSfile("testspeed")
def testarclentoparam(c):
curve=path(moveto(0,0), lineto(0,5), curveto(5,0,0,10,5,5), closepath(),
moveto(5,0), lineto(10,5))
ll = curve.arclen()
# l=[-0.8*ll, -0.6*ll, -0.4*ll, -0.2*ll, 0, 0.1*ll, 0.3*ll, 0.5*ll, 0.7*ll, 0.9*ll]
l=[0, 0.1*ll, 0.2*ll, 0.3*ll, 0.4*ll, 0.5*ll, 0.6*ll, 0.7*ll, 0.8*ll, 0.9*ll]
cols=[color.gray.black, color.gray(0.3), color.gray(0.7), color.rgb.red,
color.rgb.green, color.rgb.blue, color.cmyk(1,0,0,0),
color.cmyk(0,1,0,0), color.cmyk(0,0,1,0), color.gray.black]
t=curve.arclentoparam(l)
c.stroke(curve)
for i in range(len(t)):
c.draw(circle(curve.at(t[i])[0], curve.at(t[i])[1], 0.1), [deco.filled([cols[i]]), deco.stroked()])
def testarclentoparam(c):
curve = path(moveto(0, 0), lineto(0, 5), curveto(5, 0, 0, 10, 5, 5),
closepath(), moveto(5, 0), lineto(10, 5))
ll = curve.arclen()
# l=[-0.8*ll, -0.6*ll, -0.4*ll, -0.2*ll, 0, 0.1*ll, 0.3*ll, 0.5*ll, 0.7*ll, 0.9*ll]
l = [
0, 0.1 * ll, 0.2 * ll, 0.3 * ll, 0.4 * ll, 0.5 * ll, 0.6 * ll,
0.7 * ll, 0.8 * ll, 0.9 * ll
]
cols = [
color.gray.black,
color.gray(0.3),
color.gray(0.7), color.rgb.red, color.rgb.green, color.rgb.blue,
color.cmyk(1, 0, 0, 0),
color.cmyk(0, 1, 0, 0),
color.cmyk(0, 0, 1, 0), color.gray.black
]
t = curve.arclentoparam(l)
c.stroke(curve)
for i in range(len(t)):
c.draw(circle(curve.at(t[i])[0],
curve.at(t[i])[1], 0.1),
[deco.filled([cols[i]]), deco.stroked()])
def testnormpathtrafo(c):
p = path(moveto(0, 5),
curveto(2, 1, 4, 0, 2, 4),
rcurveto(-3, 2, 1, 2, 3, 6),
rlineto(0, 3),
closepath())
c.stroke(p)
c.stroke(p.normpath(), [color.rgb.green, style.linestyle.dashed])
c.stroke(p, [trafo.translate(3, 1), color.rgb.red])
c.insert(canvas.canvas([trafo.translate(3,1)])).stroke(p,
[color.rgb.green,
style.linestyle.dashed])
c.stroke(p.reversed(), [color.rgb.blue, style.linestyle.dotted, style.linewidth.THick])
c.stroke(cross(*(p.at(0))))
c.stroke(cross(*(p.reversed().at(0))))
p1, p2 = p.split([1.0, 2.1])
c.stroke(p1, [color.rgb.red, style.linestyle.dashed])
c.stroke(p2, [color.rgb.green, style.linestyle.dashed])
circ1 = circle(0, 10, 1)
circ2 = circle(1.7, 10, 1)
c.stroke(circ1)
c.stroke(circ2)
isectcirc1, isectcirc2 = circ1.intersect(circ2)
segment1 = circ1.split(isectcirc1)[0]
segment2 = circ2.split(isectcirc2)[1]
segment = segment1 << segment2
segment[-1].close()
c.stroke(segment, [style.linewidth.THick, deco.filled([color.rgb.green])])
def testtangent(c):
p=path(moveto(0,5),
curveto(2,1,4,0,2,4),
rcurveto(-3,2,1,2,3,6),
rlineto(2,3)) + circle(5,5,1)
c.stroke(p, [style.linewidth.THick])
arclen = p.arclen()
points = 20
for i in range(points):
c.stroke(p.tangent(arclen*i/points, length=20*unit.t_pt), [color.rgb.blue, deco.earrow.normal])
c.stroke(line(0, 0, 1, 0).transformed(p.trafo(arclen*i/points)), [color.rgb.green, deco.earrow.normal])
c.stroke(line(0, 0, 0, 1).transformed(p.trafo(arclen*i/points)), [color.rgb.red, deco.earrow.normal])
# test the curvature
cc = canvas.canvas()
cc.stroke(p)
cc = canvas.canvas([canvas.clip(cc.bbox().path())])
for i in range(points):
curvature_pt = p.curvature_pt(unit.topt(arclen)*i/points)
if curvature_pt != 0:
radius_pt = 1/curvature_pt
x_pt, y_pt = p.trafo(arclen*i/points).apply_pt(0, radius_pt)
cc.stroke(circle_pt(x_pt, y_pt, radius_pt), [color.grey(0.5)])
c.insert(cc)
def testarrow(c):
c.stroke(
path(moveto(10, 20), curveto(12, 16, 14, 15, 12, 19),
rcurveto(-3, 2, 3, 3, -2, 4)), [
deco.barrow.small, deco.earrow.normal,
deco.arrow(pos=0.5),
deco.arrow(pos=0.7, reversed=1)
])
c.stroke(path(arc(8, 15, 4, 10, 70)),
[deco.barrow.small, deco.earrow.normal])
c.stroke(path(arc(8, 15, 3, 10, 70)),
[deco.barrow.small, deco.earrow.normal])
c.stroke(path(arc(8, 15, 2, 10, 70)),
[deco.barrow.small, deco.earrow.normal])
c.stroke(path(arc(8, 15, 1, 10, 70)),
[deco.barrow.small, deco.earrow.normal])
c.stroke(path(arc(8, 15, 0.5, 10, 70)),
[deco.barrow.small, deco.earrow.normal])
base = 2
pal = color.lineargradient_rgb(color.rgb.red, color.rgb.blue)
c.stroke(
path(moveto(5, 10), rlineto(5, 0)),
[ #deco.barrow(size=base/math.sqrt(8)*unit.t_pt, constriction=1),
deco.earrow.SMall,
deco.colorgradient(pal),
deco.text("start", arclenfrombegin=0, angle=90)
])
c.stroke(path(moveto(5, 10.5), rlineto(5, 0)), [
deco.barrow(size=base / math.sqrt(4) * unit.t_pt, constriction=1),
deco.earrow.Small,
deco.colorgradient(pal),
deco.text("start+1", arclenfrombegin=1, angle=90)
])
c.stroke(path(moveto(5, 11), rlineto(5, 0)), [
deco.barrow(size=base / math.sqrt(2) * unit.t_pt, constriction=1),
deco.earrow.small,
deco.colorgradient(pal),
deco.text("center", angle=90)
])
c.stroke(path(moveto(5, 11.5), rlineto(5, 0)), [
deco.barrow(size=base / math.sqrt(1) * unit.t_pt, constriction=1),
deco.earrow.normal,
deco.colorgradient(pal),
deco.text("end-1", arclenfromend=1, angle=90)
])
c.stroke(path(moveto(5, 12), rlineto(5, 0)), [
deco.barrow(size=base * math.sqrt(2) * unit.t_pt, constriction=1),
deco.earrow.large,
deco.text("end", arclenfromend=0, angle=90)
])
c.stroke(path(moveto(5, 12.5), rlineto(5, 0)), [
deco.barrow(size=base * math.sqrt(4) * unit.t_pt, constriction=1),
deco.earrow.Large
])
c.stroke(path(moveto(5, 13), rlineto(5, 0)), [
deco.barrow(size=base * math.sqrt(8) * unit.t_pt, constriction=1),
deco.earrow.LArge
])
c.stroke(path(moveto(5, 13.5), rlineto(5, 0)), [
deco.barrow(size=base * math.sqrt(16) * unit.t_pt, constriction=1),
deco.earrow.LARge
])
lt = style.linewidth.THick
c.stroke(path(moveto(11, 10), rlineto(5, 0)), [
lt,
deco.barrow(size=base / math.sqrt(8) * unit.t_pt, constriction=1),
deco.earrow.SMall,
deco.colorgradient(pal, [style.linewidth.THIN])
])
c.stroke(path(moveto(11, 10.5), rlineto(5, 0)), [
lt,
deco.barrow(size=base / math.sqrt(4) * unit.t_pt, constriction=1),
deco.earrow.Small
])
c.stroke(path(moveto(11, 11), rlineto(5, 0)), [
lt,
deco.barrow(size=base / math.sqrt(2) * unit.t_pt, constriction=1),
deco.earrow.small
])
c.stroke(path(moveto(11, 11.5), rlineto(5, 0)), [
lt,
deco.barrow(size=base / math.sqrt(1) * unit.t_pt, constriction=1),
deco.earrow.normal
])
c.stroke(path(moveto(11, 12), rlineto(5, 0)), [
lt,
deco.barrow(size=base * math.sqrt(2) * unit.t_pt, constriction=1),
deco.earrow.large
])
c.stroke(path(moveto(11, 12.5), rlineto(5, 0)), [
lt,
deco.barrow(size=base * math.sqrt(4) * unit.t_pt, constriction=1),
deco.earrow.Large(
attrs=[deco.stroked([style.linestyle.dashed]), deco.filled.clear])
])
c.stroke(path(moveto(11, 13), rlineto(5, 0)), [
lt,
deco.barrow(size=base * math.sqrt(8) * unit.t_pt, constriction=1),
deco.earrow.LArge(attrs=[style.linestyle.dashed, color.rgb.green])
])
c.stroke(path(moveto(11, 13.5), rlineto(5, 0)), [
lt,
deco.barrow(size=base * math.sqrt(16) * unit.t_pt, constriction=1),
deco.earrow.LARge(attrs=[
color.rgb.red,
deco.stroked([style.linejoin.round]),
deco.filled([color.rgb.blue])
])
])
def testarrow(c):
c.stroke(path(moveto(10,20),
curveto(12,16,14,15,12,19),
rcurveto(-3,2,3,3,-2,4)),
[deco.barrow.small, deco.earrow.normal,
deco.arrow(pos=0.5),
deco.arrow(pos=0.7, reversed=1)])
c.stroke(path(arc(8,15,4,10,70)), [deco.barrow.small, deco.earrow.normal])
c.stroke(path(arc(8,15,3,10,70)), [deco.barrow.small, deco.earrow.normal])
c.stroke(path(arc(8,15,2,10,70)), [deco.barrow.small, deco.earrow.normal])
c.stroke(path(arc(8,15,1,10,70)), [deco.barrow.small, deco.earrow.normal])
c.stroke(path(arc(8,15,0.5,10,70)), [deco.barrow.small, deco.earrow.normal])
base = 2
pal = color.lineargradient_rgb(color.rgb.red, color.rgb.blue)
c.stroke(path(moveto(5,10), rlineto(5,0)),
[#deco.barrow(size=base/math.sqrt(8)*unit.t_pt, constriction=1),
deco.earrow.SMall,
deco.colorgradient(pal),
deco.text("start", arclenfrombegin=0, angle=90)])
c.stroke(path(moveto(5,10.5), rlineto(5,0)),
[deco.barrow(size=base/math.sqrt(4)*unit.t_pt, constriction=1),
deco.earrow.Small,
deco.colorgradient(pal),
deco.text("start+1", arclenfrombegin=1, angle=90)])
c.stroke(path(moveto(5,11), rlineto(5,0)),
[deco.barrow(size=base/math.sqrt(2)*unit.t_pt, constriction=1),
deco.earrow.small,
deco.colorgradient(pal),
deco.text("center", angle=90)])
c.stroke(path(moveto(5,11.5), rlineto(5,0)),
[deco.barrow(size=base/math.sqrt(1)*unit.t_pt, constriction=1),
deco.earrow.normal,
deco.colorgradient(pal),
deco.text("end-1", arclenfromend=1, angle=90)])
c.stroke(path(moveto(5,12), rlineto(5,0)),
[deco.barrow(size=base*math.sqrt(2)*unit.t_pt, constriction=1),
deco.earrow.large,
deco.text("end", arclenfromend=0, angle=90)])
c.stroke(path(moveto(5,12.5), rlineto(5,0)),
[deco.barrow(size=base*math.sqrt(4)*unit.t_pt, constriction=1),
deco.earrow.Large])
c.stroke(path(moveto(5,13), rlineto(5,0)),
[deco.barrow(size=base*math.sqrt(8)*unit.t_pt, constriction=1),
deco.earrow.LArge])
c.stroke(path(moveto(5,13.5), rlineto(5,0)),
[deco.barrow(size=base*math.sqrt(16)*unit.t_pt, constriction=1),
deco.earrow.LARge])
lt = style.linewidth.THick
c.stroke(path(moveto(11,10), rlineto(5,0)),
[lt,
deco.barrow(size=base/math.sqrt(8)*unit.t_pt, constriction=1),
deco.earrow.SMall,
deco.colorgradient(pal, [style.linewidth.THIN])])
c.stroke(path(moveto(11,10.5), rlineto(5,0)),
[lt,
deco.barrow(size=base/math.sqrt(4)*unit.t_pt, constriction=1),
deco.earrow.Small])
c.stroke(path(moveto(11,11), rlineto(5,0)),
[lt,
deco.barrow(size=base/math.sqrt(2)*unit.t_pt, constriction=1),
deco.earrow.small])
c.stroke(path(moveto(11,11.5), rlineto(5,0)),
[lt,
deco.barrow(size=base/math.sqrt(1)*unit.t_pt, constriction=1),
deco.earrow.normal])
c.stroke(path(moveto(11,12), rlineto(5,0)),
[lt,
deco.barrow(size=base*math.sqrt(2)*unit.t_pt, constriction=1),
deco.earrow.large])
c.stroke(path(moveto(11,12.5), rlineto(5,0)),
[lt,
deco.barrow(size=base*math.sqrt(4)*unit.t_pt, constriction=1),
deco.earrow.Large(attrs=[deco.stroked([style.linestyle.dashed]), deco.filled.clear])])
c.stroke(path(moveto(11,13), rlineto(5,0)),
[lt,
deco.barrow(size=base*math.sqrt(8)*unit.t_pt, constriction=1),
deco.earrow.LArge(attrs=[style.linestyle.dashed, color.rgb.green])])
c.stroke(path(moveto(11,13.5), rlineto(5,0)),
[lt,
deco.barrow(size=base*math.sqrt(16)*unit.t_pt, constriction=1),
deco.earrow.LARge(attrs=[color.rgb.red,
deco.stroked([style.linejoin.round]),
deco.filled([color.rgb.blue])])])
def testcurvetobbox(c):
drawpathwbbox(c, path(moveto(10, 60), curveto(12, 66, 14, 65, 12, 69)))
def testarcbbox(c):
for phi in range(0, 360, 30):
drawpathwbbox(c, path(arc(phi * 0.1, phi * 0.1, 1, 0, phi)))
for phi in range(0, 360, 30):
drawpathwbbox(c, path(arc(phi * 0.1, 5 + phi * 0.1, 1, phi, 360)))
for phi in range(0, 360, 30):
drawpathwbbox(c, path(arc(phi * 0.1, 10 + phi * 0.1, 1, phi,
phi + 30)))
for phi in range(0, 360, 30):
drawpathwbbox(c, path(arc(phi * 0.1, 15 + phi * 0.1, 1, phi,
phi + 120)))
for phi in range(0, 360, 30):
drawpathwbbox(c, path(arc(phi * 0.1, 20 + phi * 0.1, 1, phi,
phi + 210)))
for phi in range(0, 360, 30):
drawpathwbbox(c, path(arc(phi * 0.1, 25 + phi * 0.1, 1, phi,
phi + 300)))
for phi in range(0, 360, 30):
drawpathwbbox(c, path(arc(phi * 0.1, 30 + phi * 0.1, 1, phi,
phi + 390)))
for phi in range(0, 360, 30):
drawpathwbbox(
c,
path(moveto(20 + phi * 0.1, phi * 0.09),
arc(20 + phi * 0.1, phi * 0.1, 1, 0, phi)))
for phi in range(0, 360, 30):
drawpathwbbox(
c,
path(moveto(20 + phi * 0.1, 5 + phi * 0.11),
arc(20 + phi * 0.1, 5 + phi * 0.1, 1, 0, phi)))
for phi in range(0, 360, 30):
drawpathwbbox(
c,
path(moveto(20 + phi * 0.1, 10 + phi * 0.09),
arcn(20 + phi * 0.1, 10 + phi * 0.1, 1, 0, phi)))
for phi in range(0, 360, 30):
drawpathwbbox(
c,
path(moveto(20 + phi * 0.1, 15 + phi * 0.11),
arcn(20 + phi * 0.1, 15 + phi * 0.1, 1, 0, phi)))
for phi in range(0, 360, 30):
drawpathwbbox(
c,
path(moveto(50 + phi * 0.1, phi * 0.09),
arc(50 + phi * 0.1, phi * 0.1, 1, 0, phi), rlineto(1, 1)))
for phi in range(0, 360, 30):
drawpathwbbox(
c,
path(moveto(50 + phi * 0.1, 5 + phi * 0.11),
arc(50 + phi * 0.1, 5 + phi * 0.1, 1, 0, phi), rlineto(1, 1)))
for phi in range(0, 360, 30):
drawpathwbbox(
c,
path(moveto(50 + phi * 0.1, 10 + phi * 0.09),
arcn(50 + phi * 0.1, 10 + phi * 0.1, 1, 0, phi),
rlineto(1, 1)))
for phi in range(0, 360, 30):
drawpathwbbox(
c,
path(moveto(50 + phi * 0.1, 15 + phi * 0.11),
arcn(50 + phi * 0.1, 15 + phi * 0.1, 1, 0, phi),
rlineto(1, 1)))
def testarcn(c, x, y, phi1, phi2):
p=path(arcn(x,y, 0.5, phi1, phi2))
np = p.normpath()
c.stroke(p, [color.rgb.red])
c.stroke(np, [color.rgb.green, style.linestyle.dashed])
def testarcn(c, x, y, phi1, phi2):
p = path(arcn(x, y, 0.5, phi1, phi2))
np = p.normpath()
c.stroke(p, [color.rgb.red])
c.stroke(np, [color.rgb.green, style.linestyle.dashed])
#!/usr/bin/env python
import sys; sys.path[:0] = ["../.."]
from pyx import *
from pyx.path import *
c=canvas.canvas()
unit.set(uscale=1)
c.stroke(path(moveto(0,0), lineto(unit.u_cm+unit.t_cm, unit.u_cm)), [color.rgb.red])
unit.set(uscale=2)
c.stroke(path(moveto(0,0), lineto(unit.u_cm+unit.t_cm, unit.u_cm)), [color.rgb.green])
unit.set(uscale=4)
c.stroke(path(moveto(0,0), lineto(unit.u_cm+unit.t_cm, unit.u_cm)), [color.rgb.blue])
c.writeEPSfile("test_unit")
c.writePDFfile("test_unit")
c.writeSVGfile("test_unit")
def testarct(c, r, x0, y0, dx1, dy1, dx2, dy2):
p=path(moveto(x0,y0), arct(x0+dx1,y0+dy1, x0+dx2, y0+dy2, r), rlineto(dx2-dx1, dy2-dy1), closepath())
np = p.normpath()
c.stroke(p, [color.rgb.red, style.linewidth.Thick])
c.stroke(np, [color.rgb.green, style.linewidth.THin, deco.filled([color.rgb.green])])
def testtrafobbox(c):
sc=c.insert(canvas.canvas([trafo.translate(0,40).rotated(10)]))
p=path(moveto(10,10), curveto(12,16,14,15,12,19)); drawpathwbbox(sc,p)
p=path(moveto(5,17), curveto(6,18, 5,16, 7,15)); drawpathwbbox(sc,p)
def testcurvetobbox(c):
drawpathwbbox(c,path(moveto(10,60), curveto(12,66,14,65,12,69)))
def testarcbbox(c):
for phi in range(0,360,30):
drawpathwbbox(c,path(arc(phi*0.1, phi*0.1, 1, 0, phi)))
for phi in range(0,360,30):
drawpathwbbox(c,path(arc(phi*0.1, 5+phi*0.1, 1, phi, 360)))
for phi in range(0,360,30):
drawpathwbbox(c,path(arc(phi*0.1, 10+phi*0.1, 1, phi, phi+30)))
for phi in range(0,360,30):
drawpathwbbox(c,path(arc(phi*0.1, 15+phi*0.1, 1, phi, phi+120)))
for phi in range(0,360,30):
drawpathwbbox(c,path(arc(phi*0.1, 20+phi*0.1, 1, phi, phi+210)))
for phi in range(0,360,30):
drawpathwbbox(c,path(arc(phi*0.1, 25+phi*0.1, 1, phi, phi+300)))
for phi in range(0,360,30):
drawpathwbbox(c,path(arc(phi*0.1, 30+phi*0.1, 1, phi, phi+390)))
for phi in range(0,360,30):
drawpathwbbox(c,path(moveto(20+phi*0.1, phi*0.09),
arc(20+phi*0.1, phi*0.1, 1, 0, phi)))
for phi in range(0,360,30):
drawpathwbbox(c,path(moveto(20+phi*0.1, 5+phi*0.11),
arc(20+phi*0.1, 5+phi*0.1, 1, 0, phi)))
for phi in range(0,360,30):
drawpathwbbox(c,path(moveto(20+phi*0.1, 10+phi*0.09),
arcn(20+phi*0.1, 10+phi*0.1, 1, 0, phi)))
for phi in range(0,360,30):
drawpathwbbox(c,path(moveto(20+phi*0.1, 15+phi*0.11),
arcn(20+phi*0.1, 15+phi*0.1, 1, 0, phi)))
for phi in range(0,360,30):
drawpathwbbox(c,path(moveto(50+phi*0.1, phi*0.09),
arc(50+phi*0.1, phi*0.1, 1, 0, phi),
rlineto(1,1)))
for phi in range(0,360,30):
drawpathwbbox(c,path(moveto(50+phi*0.1, 5+phi*0.11),
arc(50+phi*0.1, 5+phi*0.1, 1, 0, phi),
rlineto(1,1)))
for phi in range(0,360,30):
drawpathwbbox(c,path(moveto(50+phi*0.1, 10+phi*0.09),
arcn(50+phi*0.1, 10+phi*0.1, 1, 0, phi),
rlineto(1,1)))
for phi in range(0,360,30):
drawpathwbbox(c,path(moveto(50+phi*0.1, 15+phi*0.11),
arcn(50+phi*0.1, 15+phi*0.1, 1, 0, phi),
rlineto(1,1)))