def draw_graph():
img = make_hatch(240,300)
gc = magick.newdc()
gc.stroke='red'
gc.stroke_width = 3
gc.fill='none'
gc.ellipse(120,150,80,120,0,270)
img.draw(gc)
gc.stroke='gray50'
gc.stroke_width=1
gc.circle(120,150,4)
gc.circle(200,150,4)
gc.circle(120,30,4)
gc.line(120,150,200,150)
gc.line(120,150,120,30)
img.draw(gc)
gc.stroke='transparent'
gc.fill = 'black'
#gc.set_font('/Users/cklein/Library/Fonts/Topaz-8.ttf')
#gc.text(130,35,"End")
#gc.text(188, 135, "Start")
#gc.text(130, 95, "Height=120")
#gc.text(55,155, "Width=80")
img.draw(gc)
return img
def draw_svgpath():
img = make_hatch(240,300)
gc = magick.newdc()
gc.fill = 'red'
gc.stroke = 'blue'
gc.stroke_width = 2
gc.path("M120,150 h-75 a75,75 0 1, 0 75, -75 z")
img.draw(gc)
gc.fill = 'yellow'
gc.path("M108.5,138.5 v-75 a75, 75 0 0,0 -75, 75 z")
img.draw(gc)
return img
def draw_bar():
data = [('red',30),('blue',80),('green',60)]
img = magick.image('xc:white',size='100x150')
dc = magick.newdc()
dc.stroke = 'black'
dc.stroke_width = 1
left = 10
bottom = 90
size = 20
for color,height in data:
dc.fill = color
dc.rect(left,bottom,left+size,bottom-height)
img.draw(dc)
left += size+2
return img;
def draw_shapes():
img = magick.image('xc:#ffffffff',size='150x100') # 'xc:transparent' should also work
dc = magick.newdc() # new "Drawing context with ImageMagick defaults"
#dc.text(10,10,'some drawings ...')
#img.draw(dc)
dc.stroke='blue'
dc.fill='none'
dc.stroke_width = 3
dc.circle(50,50,10) # radius of 10
img.draw(dc) # draw the primitives and clear them (keeps the state)
dc.stroke='red'
dc.rect(140,90,110,60)
dc.line(110,60,125,40)
dc.line(140,60,125,40)
img.draw(dc)
coords = [[10,90],[120,90],[70,20],[140,10]] # can also be 1-D
dc.bezier(coords)
dc.stroke='green'
img.draw(dc)
return img
def createFrame(val):
val2 = 2.0*pi*val/360
radius = 26
x = cos(val2)*radius
y = sin(val2)*radius
# uses the savespace property of Numeric arrays to be sure
# that the output of multiplication by maxRGB stays the same type.
# MaxRGB is actually a rank-0 Numeric savespace array of the
# quantum type.
img = magick.image(Numeric.ones((60,60,3)) * magick.MaxRGB)
dc = magick.newdc()
dc.fill = 'white'
dc.stroke = 'red'
dc.stroke_width = 3
dc.circle(30,30,radius)
img.draw(dc)
dc.stroke = 'blue'
dc.line(30,30,30+x,30+y)
img.draw(dc)
return img
def draw_poly():
img = make_hatch(240,300)
gc = magick.newdc()
gc.stroke = "#001aff"
gc.stroke_width = 3
gc.fill = "#00ff00"
x = 120
y = 32.5
gc.polygon([[x,y],
[x+29,y+86],
[x+109,y+86],
[x+47, y+140],
[x+73, y+226],
[x, y+175],
[x-73, y+226],
[x-47, y+140],
[x-109, y+86],
[x-29, y+86]])
img.draw(gc)
return img
def draw_bezier():
img = make_hatch(240,300)
gc = magick.newdc()
# Draw curve
gc.stroke='blue'
gc.stroke_width = 3
gc.fill = 'none'
gc.bezier([45,150, 45,20, 195,280, 195,150])
img.draw(gc)
# Draw endpoints
gc.stroke='gray50'
gc.stroke_width=1
gc.circle(45,150,4)
gc.circle(195,150,4)
img.draw(gc)
# Draw control points
gc.fill = 'gray50'
gc.circle(45,17,4)
gc.circle(195,280,4)
# Connect the points
gc.line(45,150, 45,17)
gc.line(195,280, 195,150)
img.draw(gc)
# Annotate
gc.stroke='transparent'
gc.fill= 'black'
#gc.text(27, 175, "45,150")
#gc.text(175,138, "195,150")
#gc.text(55,22, "45,20")
#gc.text(143,285, "195,280")
img.draw(gc)
return img
