示例#1
0
    def draw_image_line(self, width, line, totlines, buff):
        '''
		Reads in the buffer from the EyeLink camera image line by line and writes it
		into a buffer of size (width * totlines). Once the last line of the image
		has been read into the buffer, the image buffer is placed in a PIL.Image
		with the palette set by set_image_palette, converted to RGBA, resized,
		and then rendered to the middle of the screen. After rendering, the image
		buffer is cleared.
		'''
        if len(self.imagebuffer) > (width * totlines):
            self.imagebuffer = []
        self.imagebuffer += buff
        if int(line) == int(totlines):
            # Render complete camera image and resize to self.size
            img = Image.new("P", (width, totlines), 0)
            img.putpalette(self.palette)
            img.putdata(self.imagebuffer)
            self.img = img.convert('RGBA').resize(self.size, Image.BILINEAR)
            # Set up aggdraw to draw crosshair/bounds/etc. on image surface
            self.drawer = Draw(self.img)
            self.drawer.setantialias(True)
            self.draw_cross_hair()
            self.drawer.flush()
            # Draw complete image to screen
            fill()
            blit(asarray(self.img), 5, P.screen_c)
            if self.title:
                loc_x = (P.screen_c[0])
                loc_y = (P.screen_c[1] + self.size[1] / 2 + 20)
                blit(self.title, 8, (loc_x, loc_y))
            flip()
            # Clear image buffer
            self.imagebuffer = []
示例#2
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文件: gpso.py 项目: eM7RON/ImageEvo
    def initialize_renderers(self):
        '''
        We will initialize the draw objects for each individual/solution as to save computations.
        Instead of reinitializing them each iteration we will wipe the images by drawing a
        opaque rectangle in white or black. Then render the shapes on top. This method creates
        those draw objects and stores them in a list.
        '''
        self.draws = []
        self.bg_brush = Brush((0, 0, 0) if self.bg_color == 'black' else
                              (255, 255, 255), 255)
        self.bg_coords = (0, 0, *self.img_size)

        if self.shape_type in {'circle', 'square'}:
            self.render_method = self.render_uni_verts
        else:
            self.render_method = self.render_multi_verts

        if self.shape_type == 'circle':
            self.draw_method = 'ellipse'
        elif self.shape_type == 'square':
            self.draw_method = 'rectangle'
        else:
            self.draw_method = self.shape_type

        for _ in self.pop_range:
            draw = Draw('RGBA', self.img_size, self.bg_color)
            draw.setantialias(False)
            self.draws.append([draw, getattr(draw, self.draw_method)])
示例#3
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 def __init__(
     self,
     img=None,
     imageType=None,  # determines file type
     fileName=None,  # if set determines output file name
     size=None,
 ):
     if img is None:
         try:
             import Image
         except ImportError:
             from PIL import Image
         if size is None:
             raise ValueError('please provide either an image or a size')
         img = Image.new('RGBA', size, "white")
     self.image = img
     self.draw = Draw(img)
     self.draw.setantialias(True)
     if size is None:
         self.size = self.draw.size
     else:
         self.size = size
     if imageType and imageType not in ('png', 'jpg'):
         raise ValueError('unsupported image type for agg canvas')
     self.drawType = imageType
     self.fileName = fileName
示例#4
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 def get_image(self, im_width, im_length):
     im = Image.new("RGBA", (im_width, im_length),
                    (0, 0, 0, MAX_COLOR))  # Black image
     draw = Draw(im)
     for shape in self.shapes_list:
         shape.draw(draw)
     draw.flush()
     return im
示例#5
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 def create_pixel_img(
     self,
     scale,
     text,
     color,
 ):
     '''Creats a new canvas and draws text onto it if overridin'''
     font = Font(self.new_txt_color(color), self.font, self.font_size)
     bg_color = self.new_bg_color(color)
     img = Draw('RGB', scale, bg_color)
     img.text((0, 7), text, font)
     return img
示例#6
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 def create_pixel_img(self, scale, text, color):
     '''Creats a new canvas and draws text onto it if overridin'''
     #define the font and the blank canvas
     font = Font(self.new_txt_color(color), self.font, self.font_size)
     #defines the background color of the canvas
     bg_color = self.new_bg_color(color)
     img = Draw('RGB', scale, bg_color)
     #draw text on to the canvas by default only one line of text is drawn
     #this method can be overriden to draw as much text as you want
     #Note that the if the scale is not large enough not all the text will be displayed
     img.text((0, 0), text, font)
     return img
示例#7
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文件: gpso.py 项目: eM7RON/ImageEvo
 def render_img_oaat_exis_mode(self, i: int):
     '''
     One At A Time
     Renders the last image that was initialized
     '''
     img = self.bgs[i]
     draw = Draw(img)
     draw.setantialias(False)
     draw_method = getattr(draw, self.draw_method)
     self.render_method(draw_method,
                        self.mapped_population_b10[i, self.b10_idx[-1]])
     return np.frombuffer(draw.tobytes(),
                          dtype='uint8').reshape(-1, 4, order='C')[:, :3]
    def getProgressItems(self, curStepIndex, steps):
        total = len(steps)
        marginTop = 4
        dia = 9
        space = 12

        image = Image.new("RGB", (self.width, dia + int(marginTop * 1.5)))
        draw = Draw(image)

        w = ((dia + space) * total) - space
        marginLeft = (self.width - w) / 2

        for s in range(total):
            left = marginLeft + ((dia + space) * s)
            draw.ellipse((left, marginTop, left + dia, marginTop + dia),
                         Pen(self.colors[steps[s]]),
                         Brush(self.colors[steps[s]]))
            if curStepIndex < s:
                draw.ellipse(
                    (left + (dia * 0.25), marginTop + (dia * 0.25), left +
                     (dia * 0.75), marginTop + (dia * 0.75)), Pen("#000"),
                    Brush("#000"))
        draw.flush()

        return image
示例#9
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 def _init_surface(self):
     self._update_dimensions()
     self.rendered = None  # Clear any existing rendered texture
     if self.fill_color:
         if self.stroke_color and self.fill_color[3] == 255:
             col = self.stroke_color
         else:
             col = self.fill_color
     elif self.stroke_color:
         col = self.stroke_color
     else:
         col = (0, 0, 0)
     self.canvas = Image.new("RGBA", self.dimensions,
                             (col[0], col[1], col[2], 0))
     self.surface = Draw(self.canvas)
     self.surface.setantialias(True)
示例#10
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def test_graphics3():
    """See issue #22."""
    from aggdraw import Draw, Pen
    from PIL import Image
    main = Image.new('RGB', (480, 1024), 'white')
    d = Draw(main)
    p = Pen((90,) * 3, 0.5)
示例#11
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文件: aggCanvas.py 项目: nfirth/rdkit
 def __init__(
     self,
     img=None,
     imageType=None,  # determines file type
     fileName=None,  # if set determines output file name
     size=None,
 ):
     if img is None:
         try:
             import Image
         except ImportError:
             from PIL import Image
         if size is None:
             raise ValueError, "please provide either an image or a size"
         img = Image.new("RGBA", size, "white")
     self.image = img
     self.draw = Draw(img)
     self.draw.setantialias(True)
     if size is None:
         self.size = self.draw.size
     else:
         self.size = size
     if imageType and imageType not in ("png", "jpg"):
         raise ValueError, "unsupported image type for agg canvas"
     self.drawType = imageType
     self.fileName = fileName
示例#12
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 def create_pixel_img(
     self,
     scale,
     text,
     color,
 ):
     '''Creats a new canvas and draws text onto it if overridin'''
     font = Font(self.new_txt_color(color), self.font, self.font_size)
     bg_color = self.new_bg_color(color)
     img = Draw('RGB', scale, bg_color)
     img.text((8, 0), text[:5], font)
     img.text((8, 10), text[5:10], font)
     img.text((8, 20), text[10:15], font)
     img.text((8, 30), text[15:20], font)
     img.text((8, 40), text[20:], font)
     return img
示例#13
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def make_marker(radius, fill_color, stroke_color, stroke_width, opacity=1.0):
    """
    Creates a map marker and returns a PIL image.

    radius
        In pixels

    fill_color
        Any PIL-acceptable color representation, but standard hex
        string is best

    stroke_color
        See fill_color

    stroke_width
        In pixels

    opacity
        Float between 0.0 and 1.0
    """
    # Double all dimensions for drawing. We'll resize back to the original
    # radius for final output -- it makes for a higher-quality image, especially
    # around the edges
    radius, stroke_width = radius * 2, stroke_width * 2
    diameter = radius * 2
    im = Image.new('RGBA', (diameter, diameter))
    draw = Draw(im)
    
    
    
    # Move in from edges half the stroke width, so that the stroke is not
    # clipped.
    half_stroke_w = (stroke_width / 2 * 1.0) + 1
    min_x, min_y = half_stroke_w, half_stroke_w
    max_x = diameter - half_stroke_w
    max_y = max_x
    bbox = (min_x, min_y, max_x, max_y)
    # Translate opacity into aggdraw's reference (0-255)
    opacity = int(opacity * 255)
    draw.ellipse(bbox,
                 Pen(stroke_color, stroke_width, opacity),
                 Brush(fill_color, opacity))
    draw.flush()
    # The key here is to resize using the ANTIALIAS filter, which is very
    # high-quality
    im = im.resize((diameter / 2, diameter / 2), Image.ANTIALIAS)
    return im
示例#14
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def test_draw():
    from aggdraw import Draw
    from PIL import Image
    with pytest.raises(AttributeError) as excinfo:
        Draw("RGB")
    assert "'str' object has no attribute 'mode'" in str(excinfo.value)

    draw = Draw("RGB", (800, 600))
    assert draw.mode == 'RGB'
    assert draw.size == (800, 600)

    draw = Draw("RGB", (800, 600), "white")
    assert draw.mode == 'RGB'
    assert draw.size == (800, 600)

    im = Image.new("RGB", (600, 800))
    draw = Draw(im)
    assert draw.mode == 'RGB'
    assert draw.size == (600, 800)
    async def loading(self):
        image = Image.new("RGB", (self.width, self.height))

        draw = Draw(image)

        colors = list(self.colors.values())
        draw.ellipse((50, 59, 60, 69), Pen(colors[0]), Brush(colors[0]))
        draw.ellipse((75, 59, 85, 69), Pen(colors[1]), Brush(colors[1]))
        draw.ellipse((100, 59, 110, 69), Pen(colors[2]), Brush(colors[2]))

        draw.flush()

        self.display(image)
示例#16
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def cursor(color=None):
    dc = Draw("RGBA", [32, 32], (0, 0, 0, 0))
    if color is not None:
        cursor_color = color[0:3]
    else:
        cursor_color = []
        for c in P.default_fill_color:
            cursor_color.append(abs(c - 255))
        cursor_color = cursor_color[0:3]
    # coordinate tuples are easier to read/modify but aggdraw needs a stupid x,y,x,y,x,y list
    cursor_coords = [(6, 0), (6, 27), (12, 21), (18, 32), (20, 30), (15, 20),
                     (23, 20), (6, 0)]
    cursor_xy_list = []
    for point in cursor_coords:
        cursor_xy_list.append(point[0])
        cursor_xy_list.append(point[1])
    brush = Brush(tuple(cursor_color), 255)
    pen = Pen((255, 255, 255), 1, 255)
    dc.polygon(cursor_xy_list, pen, brush)
    cursor_surface = aggdraw_to_array(dc)
    return cursor_surface
示例#17
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    def draw(self):
        rotation = self.rotation
        center = self.surface_width / 2.0
        r = self.radius + 1
        for i in range(0, len(self.colors)):
            brush = Brush(rgb_to_rgba(self.colors[i]))
            vertices = [center, center]
            for i in range(0, 4):
                r_shift = -0.25 if i < 2 else 1.25
                r_shift -= rotation
                func = cos if i % 2 else sin
                vertices.append(r + r * func(radians(r_shift + 180)))
            self.surface.polygon(vertices, brush)
            rotation += 360.0 / len(self.colors)
        self.surface.flush()

        # Create annulus mask and apply it to colour disc
        mask = Image.new('L', (self.surface_width, self.surface_height), 0)
        d = Draw(mask)
        xy_1 = center - (self.radius - self.thickness / 2.0)
        xy_2 = center + (self.radius - self.thickness / 2.0)
        path_pen = Pen(255, self.thickness)
        d.ellipse([xy_1, xy_1, xy_2, xy_2], path_pen, self.transparent_brush)
        d.flush()
        self.canvas.putalpha(mask)

        return self.canvas
示例#18
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def _fill_annotations(a: Annotation, label: str, color=0xFF, out=None):
    if out is None:
        out = Image.new(mode='L', size=a.image.size)

    brush = Brush(color)

    d = Draw(out)
    d.setantialias(False)

    for o in a.iter_objects(label):
        xy = a.points(o)
        d.polygon(xy.flatten(), brush)

    return d.flush()
示例#19
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def draw_text(frame, x, y, text, size=16, color='white'):

    im = Image.fromarray(frame)
    draw = Draw(im)
    _, fh = draw.size

    font = Font(color, os.path.join(os.path.dirname(__file__), './Reith.ttf'),
                DRAW_SCALE_FACTOR)

    text_w, text_h = draw.textsize(text, font)
    y -= text_h
    draw.text((x + 2, y + 4), text, font)
    draw.flush()

    return np.array(im)
示例#20
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def test_graphics2():
    """See issue #14."""
    from aggdraw import Draw, Symbol, Pen
    from PIL import Image
    import numpy as np
    symbol = Symbol("M400 200 L400 400")
    pen = Pen("red")
    image = Image.fromarray(np.zeros((800, 600, 3)), mode="RGB")
    canvas = Draw(image)
    canvas.symbol((0, 0), symbol, pen)
    canvas.flush()
    assert np.asarray(image).sum() == 50800
示例#21
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def test_path():
    from aggdraw import Draw, Path
    Path()
    Path([0, 0])
    Path([0, 0, 0, 0])

    p = Path()
    p.moveto(0, 0)
    p.lineto(1, 1)
    assert p.coords() == [0.0, 0.0, 1.0, 1.0]

    p.curveto(0, 0, 0, 0, 0, 0)
    p.close()
    p.coords()
    assert p.coords() == [0.0, 0.0, 1.0, 1.0, 0.125, 0.125, 0.0, 0.0]

    draw = Draw("RGB", (800, 600))
    draw.line(p)
    draw.polygon(p)
    draw.symbol((0, 0), p)
    def circleProgressLeft(self, percent, color):
        dia = 44

        image = Image.new("RGB", (dia + 6, dia + 6))

        draw = Draw(image)
        pen = Pen(self.colors[color], 6)

        radian = percent * 360
        draw.arc((3, 3, dia + 3, dia + 3), 450 - radian, 90, pen)

        draw.flush()

        return image
示例#23
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def _stroke_annotations(a: Annotation,
                        label: str,
                        color=0xFF,
                        width=5,
                        out=None):
    if out is None:
        out = Image.new(mode='L', size=a.image.size)

    pen = Pen(color, width)

    d = Draw(out)
    d.setantialias(False)  # Should not antialias masks

    for o in a.iter_objects(label):
        xy = a.points(o)
        d.polygon(xy.flatten(), pen)

    return d.flush()
示例#24
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def test_path():
    from aggdraw import Draw, Path
    Path()
    Path([0, 0])
    Path([0, 0, 0, 0])

    p = Path()
    p.moveto(0, 0)
    p.lineto(1, 1)
    assert p.coords() == [0.0, 0.0, 1.0, 1.0]

    p.curveto(2, 1, 2, 1, 2, 0)
    p.close()
    p.coords()
    # Changed test w.r.t. aggdraw for agg 2.4
    # Correctness of this may be seen in the file test-path-proof.ps
    assert p.coords() == [0.0, 0.0, 1.0, 1.0, 1.625, 1.0, 2.0, 0.625, 2.0, 0.0]

    draw = Draw("RGB", (800, 600))
    draw.line(p)
    draw.polygon(p)
    draw.symbol((0, 0), p)
示例#25
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文件: aggCanvas.py 项目: ashwin/rdkit
 def __init__(self, img=None,
              imageType=None, # determines file type
              fileName=None,  # if set determines output file name
              size=None,
              ):
   if img is None:
     import Image
     if size is None:
       raise ValueError,'please provide either an image or a size'
     img = Image.new('RGBA',size,"white")
   self.image = img
   self.draw = Draw(img)
   self.draw.setantialias(True)
   if size is None:
     self.size = self.draw.size
   else:
     self.size = size
   if imageType and imageType not in ('png','jpg'):
     raise ValueError,'unsupported image type for agg canvas'
   self.drawType=imageType
   self.fileName=fileName
示例#26
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def drift_correct_target():
    draw_context_length = P.screen_y // 60
    while draw_context_length % 3 != 0:  # inner dot should be 1/3 size of target
        draw_context_length += 1
    black_brush = Brush((0, 0, 0, 255))
    white_brush = Brush((255, 255, 255, 255))
    draw_context = Draw("RGBA",
                        [draw_context_length + 2, draw_context_length + 2],
                        (0, 0, 0, 0))
    draw_context.ellipse([0, 0, draw_context_length, draw_context_length],
                         black_brush)
    wd_top = draw_context_length // 3  # size of the inner white dot of the calibration point
    wd_bot = 2 * draw_context_length // 3
    draw_context.ellipse([wd_top, wd_top, wd_bot, wd_bot], white_brush)

    return aggdraw_to_array(draw_context)
示例#27
0
def make_marker(radius, fill_color, stroke_color, stroke_width, opacity=1.0):
    """
    Creates a map marker and returns a PIL image.

    radius
        In pixels

    fill_color
        Any PIL-acceptable color representation, but standard hex
        string is best

    stroke_color
        See fill_color

    stroke_width
        In pixels

    opacity
        Float between 0.0 and 1.0
    """
    # Double all dimensions for drawing. We'll resize back to the original
    # radius for final output -- it makes for a higher-quality image, especially
    # around the edges
    radius, stroke_width = radius * 2, stroke_width * 2
    diameter = radius * 2
    im = Image.new('RGBA', (diameter, diameter))
    draw = Draw(im)
    # Move in from edges half the stroke width, so that the stroke is not
    # clipped.
    half_stroke_w = (stroke_width / 2 * 1.0) + 1
    min_x, min_y = half_stroke_w, half_stroke_w
    max_x = diameter - half_stroke_w
    max_y = max_x
    bbox = (min_x, min_y, max_x, max_y)
    # Translate opacity into aggdraw's reference (0-255)
    opacity = int(opacity * 255)
    draw.ellipse(bbox,
                 Pen(stroke_color, stroke_width, opacity),
                 Brush(fill_color, opacity))
    draw.flush()
    # The key here is to resize using the ANTIALIAS filter, which is very
    # high-quality
    im = im.resize((diameter / 2, diameter / 2), Image.ANTIALIAS)
    return im
    async def circleProgress(self, percent, text=""):
        image = Image.new("RGB", (self.width, self.height))

        draw = Draw(image)
        pen = Pen("white", 7)

        radian = percent * 3.6
        draw.arc((50, 34, 110, 94), 450 - radian, 90, pen)

        draw.flush()
        imDraw = ImageDraw.Draw(image)

        if len(text) > 0:
            text = text.capitalize()
            w, h = imDraw.textsize(text, font=self.fonts['prompt'])
            imDraw.text(((self.width - w) / 2, (self.height - h) / 2),
                        text,
                        font=self.fonts['prompt'],
                        align="center",
                        fill="#fff")

        image = invert(image)
        self.display(image)
示例#29
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文件: 06-square.py 项目: msarch/py
from PIL import Image
from aggdraw import Draw, Brush
transBlack = (0, 0, 0, 0)  # shows your example with visible edges
solidBlack = (0, 0, 0, 255)  # shows shape on a black background
transWhite = (255, 255, 255, 0)
solidWhite = (255, 255, 255, 255)

im = Image.new("RGBA", (600, 600), solidBlack)

draw = Draw(im)

brush = Brush("yellow")

draw.polygon((
    50,
    50,
    550,
    60,
    550,
    550,
    60,
    550,
), None, brush)

draw.flush()
im.save("squar.png")
im.show()
示例#30
0
class Canvas(CanvasBase):
  # fonts appear smaller in aggdraw than with cairo
  # fix that here:
  fontScale = 1.2

  def __init__(self,
               img=None,
               imageType=None,  # determines file type
               fileName=None,  # if set determines output file name
               size=None, ):
    if img is None:
      try:
        import Image
      except ImportError:
        from PIL import Image
      if size is None:
        raise ValueError('please provide either an image or a size')
      img = Image.new('RGBA', size, "white")
    self.image = img
    self.draw = Draw(img)
    self.draw.setantialias(True)
    if size is None:
      self.size = self.draw.size
    else:
      self.size = size
    if imageType and imageType not in ('png', 'jpg'):
      raise ValueError('unsupported image type for agg canvas')
    self.drawType = imageType
    self.fileName = fileName

  def _doLine(self, p1, p2, pen, **kwargs):
    if kwargs.get('dash', (0, 0)) == (0, 0):
      self.draw.line((p1[0], p1[1], p2[0], p2[1]), pen)
    else:
      dash = kwargs['dash']
      pts = self._getLinePoints(p1, p2, dash)

      currDash = 0
      dashOn = True
      while currDash < (len(pts) - 1):
        if dashOn:
          p1 = pts[currDash]
          p2 = pts[currDash + 1]
          self.draw.line((p1[0], p1[1], p2[0], p2[1]), pen)
        currDash += 1
        dashOn = not dashOn

  def addCanvasLine(self, p1, p2, color=(0, 0, 0), color2=None, **kwargs):
    if color2 and color2 != color:
      mp = (p1[0] + p2[0]) / 2., (p1[1] + p2[1]) / 2.
      color = convertColor(color)
      self._doLine(p1, mp, Pen(color, kwargs.get('linewidth', 1)), **kwargs)
      color2 = convertColor(color2)
      self._doLine(mp, p2, Pen(color2, kwargs.get('linewidth', 1)), **kwargs)
    else:
      color = convertColor(color)
      self._doLine(p1, p2, Pen(color, kwargs.get('linewidth', 1)), **kwargs)

  def addCanvasText(self, text, pos, font, color=(0, 0, 0), **kwargs):
    orientation = kwargs.get('orientation', 'E')
    color = convertColor(color)
    aggFont = Font(color, faceMap[font.face], size=font.size * self.fontScale)

    blocks = list(re.finditer(r'\<(.+?)\>(.+?)\</\1\>', text))
    w, h = 0, 0
    supH = 0
    subH = 0
    if not len(blocks):
      w, h = self.draw.textsize(text, aggFont)
      tw, th = w, h
      offset = w * pos[2]
      dPos = pos[0] - w / 2. + offset, pos[1] - h / 2.
      self.draw.text(dPos, text, aggFont)
    else:
      dblocks = []
      idx = 0
      for block in blocks:
        blockStart, blockEnd = block.span(0)
        if blockStart != idx:
          # untagged text:
          tblock = text[idx:blockStart]
          tw, th = self.draw.textsize(tblock, aggFont)
          w += tw
          h = max(h, th)
          dblocks.append((tblock, '', tw, th))
        fmt = block.groups()[0]
        tblock = block.groups()[1]
        if fmt in ('sub', 'sup'):
          lFont = Font(color, faceMap[font.face], size=0.8 * font.size * self.fontScale)
        else:
          lFont = aggFont
        tw, th = self.draw.textsize(tblock, lFont)
        w += tw
        if fmt == 'sub':
          subH = max(subH, th)
        elif fmt == 'sup':
          supH = max(supH, th)
        else:
          h = max(h, th)
        dblocks.append((tblock, fmt, tw, th))
        idx = blockEnd
      if idx != len(text):
        # untagged text:
        tblock = text[idx:]
        tw, th = self.draw.textsize(tblock, aggFont)
        w += tw
        h = max(h, th)
        dblocks.append((tblock, '', tw, th))

      supH *= 0.5
      subH *= 0.5
      h += supH + subH
      offset = w * pos[2]
      if orientation == 'W':
        dPos = [pos[0] - w + offset, pos[1] - h / 2.]
      elif orientation == 'E':
        dPos = [pos[0] + offset, pos[1] - h / 2.]
      else:
        dPos = [pos[0] - w / 2. + offset, pos[1] - h / 2.]

      if supH:
        dPos[1] += supH
      for txt, fmt, tw, th in dblocks:
        tPos = dPos.copy()
        if fmt == 'sub':
          tPos[1] += subH
        elif fmt == 'sup':
          tPos[1] -= supH
        if fmt in ('sub', 'sup'):
          lFont = Font(color, faceMap[font.face], size=0.8 * font.size * self.fontScale)
        else:
          lFont = aggFont
        self.draw.text(tPos, txt, lFont)
        dPos[0] += tw
    return (tw + th * .4, th + th * .4, offset)

  def addCanvasPolygon(self, ps, color=(0, 0, 0), fill=True, stroke=False, **kwargs):
    if not fill and not stroke:
      return 
    dps = []
    for p in ps:
      dps.extend(p)
    color = convertColor(color)
    brush = None
    pen = None
    if fill:
      brush = Brush(color)
    if stroke:
      pen = Pen(color)
    self.draw.polygon(dps, pen, brush)

  def addCanvasDashedWedge(self, p1, p2, p3, dash=(2, 2), color=(0, 0, 0), color2=None, **kwargs):
    pen = Pen(color, kwargs.get('linewidth', 1))
    dash = (3, 3)
    pts1 = self._getLinePoints(p1, p2, dash)
    pts2 = self._getLinePoints(p1, p3, dash)

    if len(pts2) < len(pts1):
      pts2, pts1 = pts1, pts2

    for i in range(len(pts1)):
      self.draw.line((pts1[i][0], pts1[i][1], pts2[i][0], pts2[i][1]), pen)

  def flush(self):
    self.draw.flush()
    if self.fileName:
      self.image.save(self.fileName)
示例#31
0
文件: gcmap.py 项目: MBalazs90/gcmap
    def draw(self):
        '''
        Render the image. Assumes that set_data has already been called.

        Returns a Python Image Library (PIL) Image object.
        '''

        img = Image.new('RGB', (self.width, self.height), self.bgcol)
        canvas = Draw(img)

        # create the projection. Here we use an equidistant cylindrical projection,
        # but others may work with tweaking of the parameters.
        proj = Proj(proj=self.proj,
                a=self.width/(2*pi), # set the radius of the earth such that our
                                     # projections work
                x_0=self.width/2,    # center horizontally on the image
                y_0=self.height/2)   # center verticallly on the image

        # two branches below will use the same sequence of commands to
        # draw a great-circle on the map, so the common elements are wrapped
        # up into a locally defined function. Given a matrix of points and
        # a pen, draw the path through the points.
        def draw_(pts, pen):
            lons, lats = pts.T
            x, y = proj(lons, lats)
            y = self.height - y
            path = reduce(operator.add, zip(x, y))
            canvas.line(path, pen)

        # loop over every coordinate pair
        for i, (lon1, lat1, lon2, lat2) in enumerate(self.data[self.order]):
            # calculate the fraction of the paths already drawn, and use
            # it to create a pen of the appropriate color
            frac = i / float(self.data_size)
            pen = Pen(self.cols(frac), self.line_width)

            # find the intermediate coordinates along a line between the two 
            # coordinates
            pts = self.geo.npts(lon1, lat1, lon2, lat2, self.gc_resolution)
            pts = np.array(pts)

            # if the longitudinal distance between the two points (travelling
            # through the prime meridian) is more than 180 degrees, it's faster
            # to *not* travel through the prime meridian, so we have to special-
            # case the drawing of the lines.
            if abs(lon1 - lon2) >= HALF_ROTATION:
                # find the index of the path where the line wraps around the image
                (cut_point,), = np.where(np.abs(np.diff(pts[:,0])) > HALF_ROTATION)
                
                # draw the two resultant lines separately
                pts1 = pts[:cut_point+1,:]
                pts2 = pts[cut_point+1:,:]

                # plot one point after the break on each sides so that the
                # paths go to the edge of the screen
                x1, y1 = pts[cut_point+2, :]
                x2, y2 = pts[cut_point+1, :]

                if x1 > 0:
                    pts1 = np.vstack((pts1, [-HALF_ROTATION, y1]))
                    pts2 = np.vstack(([HALF_ROTATION, y2], pts2))
                else:
                    pts1 = np.vstack((pts1, [HALF_ROTATION, y1]))
                    pts2 = np.vstack(([-HALF_ROTATION, y2], pts2))

                draw_(pts1, pen)
                draw_(pts2, pen)
            else:
                # the path does not wrap the image, so we can simply draw
                # it as-is
                draw_(pts, pen)
            
        canvas.flush()

        return img
示例#32
0
文件: aggCanvas.py 项目: ashwin/rdkit
class Canvas(CanvasBase):
  # fonts appear smaller in aggdraw than with cairo
  # fix that here:
  fontScale=1.2
  def __init__(self, img=None,
               imageType=None, # determines file type
               fileName=None,  # if set determines output file name
               size=None,
               ):
    if img is None:
      import Image
      if size is None:
        raise ValueError,'please provide either an image or a size'
      img = Image.new('RGBA',size,"white")
    self.image = img
    self.draw = Draw(img)
    self.draw.setantialias(True)
    if size is None:
      self.size = self.draw.size
    else:
      self.size = size
    if imageType and imageType not in ('png','jpg'):
      raise ValueError,'unsupported image type for agg canvas'
    self.drawType=imageType
    self.fileName=fileName
    
  def _doLine(self, p1, p2, pen, **kwargs):
    if kwargs.get('dash',(0,0)) == (0,0):
      self.draw.line((p1[0],p1[1],p2[0],p2[1]),pen)
    else:
      dash = kwargs['dash']
      pts = self._getLinePoints(p1,p2,dash)

      currDash = 0
      dashOn = True
      while currDash<(len(pts)-1):
        if dashOn:
          p1 = pts[currDash]
          p2 = pts[currDash+1]
          self.draw.line((p1[0],p1[1],p2[0],p2[1]),pen)
        currDash+=1
        dashOn = not dashOn

  def addCanvasLine(self, p1, p2, color=(0,0,0), color2=None, **kwargs):
    if color2 and color2!=color:
      mp = (p1[0]+p2[0])/2.,(p1[1]+p2[1])/2.
      color = convertColor(color)
      self._doLine(p1,mp,Pen(color,kwargs.get('linewidth',1)),**kwargs)
      color2 = convertColor(color2)
      self._doLine(mp,p2,Pen(color2,kwargs.get('linewidth',1)),**kwargs)
    else:
      color = convertColor(color)
      self._doLine(p1,p2,Pen(color,kwargs.get('linewidth',1)),**kwargs)

  def addCanvasText(self,text,pos,font,color=(0,0,0),**kwargs):
    orientation=kwargs.get('orientation','E')
    color = convertColor(color)
    aggFont = Font(color,faceMap[font.face],size=font.size*self.fontScale)

    blocks = list(re.finditer(r'\<(.+?)\>(.+?)\</\1\>',text))
    w,h = 0,0
    supH=0
    subH=0
    if not len(blocks):
      w,h=self.draw.textsize(text,aggFont)
      bw,bh=w*1.1,h*1.1
      dPos = pos[0]-bw/2.,pos[1]-bh/2.
      bgColor=kwargs.get('bgColor',(1,1,1))
      bgColor = convertColor(bgColor)
      self.draw.rectangle((dPos[0],dPos[1],dPos[0]+bw,dPos[1]+bh),
                       None,Brush(bgColor))
      dPos = pos[0]-w/2.,pos[1]-h/2.
      self.draw.text(dPos,text,aggFont)
    else:
      dblocks=[]
      idx=0
      for block in blocks:
        blockStart,blockEnd=block.span(0)
        if blockStart != idx:
          # untagged text:
          tblock = text[idx:blockStart]
          tw,th=self.draw.textsize(tblock,aggFont)
          w+=tw
          h = max(h,th)
          dblocks.append((tblock,'',tw,th))
        fmt = block.groups()[0]
        tblock = block.groups()[1]
        if fmt in ('sub','sup'):
          lFont = Font(color,faceMap[font.face],size=0.8*font.size*self.fontScale)
        else:
          lFont = aggFont
        tw,th=self.draw.textsize(tblock,lFont)
        w+=tw
        if fmt == 'sub':
          subH = max(subH,th)
        elif fmt=='sup':
          supH = max(supH,th)
        else:
          h = max(h,th)
        dblocks.append((tblock,fmt,tw,th))
        idx = blockEnd
      if idx!=len(text):
        # untagged text:
        tblock = text[idx:]
        tw,th=self.draw.textsize(tblock,aggFont)
        w+=tw
        h = max(h,th)
        dblocks.append((tblock,'',tw,th))
        
      supH *= 0.25
      subH *= 0.25
      h += supH + subH
      bw,bh=w*1.1,h
      #dPos = pos[0]-bw/2.,pos[1]-bh/2.
      dPos = [pos[0]-w/2.,pos[1]-h/2.]
      if orientation=='W':
        dPos = [pos[0]-w,pos[1]-h/2.]
      elif orientation=='E':
        dPos = [pos[0],pos[1]-h/2.]
      else:
        dPos = [pos[0]-w/2,pos[1]-h/2.]

      bgColor=kwargs.get('bgColor',(1,1,1))
      bgColor = convertColor(bgColor)
      self.draw.rectangle((dPos[0],dPos[1],dPos[0]+bw,dPos[1]+bh),
                          None,Brush(bgColor))
      if supH: dPos[1]+=supH
      for txt,fmt,tw,th in dblocks:
        tPos = dPos[:]
        if fmt=='sub':
          tPos[1]+=subH
        elif fmt=='sup':
          tPos[1]-=supH
        if fmt in ('sub','sup'):
          lFont = Font(color,faceMap[font.face],size=0.8*font.size*self.fontScale)
        else:
          lFont = aggFont
        self.draw.text(tPos,txt,lFont)
        dPos[0]+=tw


  def addCanvasPolygon(self,ps,color=(0,0,0),fill=True,stroke=False,**kwargs):
    if not fill and not stroke: return
    dps = []
    for p in ps:
      dps.extend(p)
    color = convertColor(color)
    brush=None
    pen=None
    if fill:
      brush = Brush(color)
    if stroke:
      pen = Pen(color)
    self.draw.polygon(dps,pen,brush)
 
  def addCanvasDashedWedge(self,p1,p2,p3,dash=(2,2),color=(0,0,0),
                           color2=None,**kwargs):
    pen = Pen(color,kwargs.get('linewidth',1))
    dash = (3,3)
    pts1 = self._getLinePoints(p1,p2,dash)
    pts2 = self._getLinePoints(p1,p3,dash)

    if len(pts2)<len(pts1): pts2,pts1=pts1,pts2

    for i in range(len(pts1)):
      self.draw.line((pts1[i][0],pts1[i][1],pts2[i][0],pts2[i][1]),pen)

  def flush(self):
    self.draw.flush()
    if self.fileName:
      self.image.save(self.fileName)
示例#33
0
文件: 06-square.py 项目: msarch/py
from PIL import Image
from aggdraw import Draw, Brush
transBlack = (0, 0, 0, 0)         # shows your example with visible edges
solidBlack = (0, 0, 0, 255)       # shows shape on a black background
transWhite = (255, 255, 255, 0)
solidWhite = (255, 255, 255, 255)

im = Image.new("RGBA", (600, 600), solidBlack)

draw = Draw(im)

brush = Brush("yellow")

draw.polygon(
             (
              50, 50,
              550, 60,
              550, 550,
              60, 550,
             ),
             None, brush
            )

draw.flush()
im.save("squar.png")
im.show()
示例#34
0
def test_graphics():
    from aggdraw import Draw, Pen, Brush
    draw = Draw("RGB", (500, 500))

    pen = Pen("black")
    brush = Brush("black")

    draw.line((50, 50, 100, 100), pen)

    draw.rectangle((50, 150, 100, 200), pen)
    draw.rectangle((50, 220, 100, 270), brush)
    draw.rectangle((50, 290, 100, 340), brush, pen)
    draw.rectangle((50, 360, 100, 410), pen, brush)

    draw.ellipse((120, 150, 170, 200), pen)
    draw.ellipse((120, 220, 170, 270), brush)
    draw.ellipse((120, 290, 170, 340), brush, pen)
    draw.ellipse((120, 360, 170, 410), pen, brush)

    draw.polygon((190+25, 150, 190, 200, 190+50, 200), pen)
    draw.polygon((190+25, 220, 190, 270, 190+50, 270), brush)
    draw.polygon((190+25, 290, 190, 340, 190+50, 340), brush, pen)
    draw.polygon((190+25, 360, 190, 410, 190+50, 410), pen, brush)
示例#35
0
def test_flush():
    from aggdraw import Draw
    from PIL import Image
    im = Image.new("RGB", (600, 800))
    draw = Draw(im)
    assert draw.flush().mode == 'RGB'
示例#36
0
def test_transform():
    from aggdraw import Draw
    draw = Draw("RGB", (500, 500))

    draw.settransform()
    draw.settransform((250, 250))
    draw.settransform((1, 0, 250, 0, 1, 250))
    draw.settransform((2.0, 0.5, 250, 0.5, 2.0, 250))
    draw.settransform()