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| from PIL import Image, ImageDraw, ImageFont
def draw_text(draw, text, position, font_size, font_path, fill='black'):
font = ImageFont.truetype(font_path, font_size)
draw.text(position, text, font=font, fill=fill)
def draw_line(draw, start_point, end_point, fill='black', width=3):
draw.line([start_point, end_point], fill=fill, width=width)
def draw_polygon(draw, points, outline='black', fill=None, width=3):
draw.polygon(points, outline=outline, fill=fill)
if fill:
draw.line(points + [points[0]], fill=outline, width=width)
def draw_polyline(draw, points, fill='black', width=3):
draw.line(points, fill=fill, width=width)
def create_gradient_color(start_color, end_color, height):
"""
創建垂直漸層顏色列表
:param start_color: 開始顏色 (r, g, b)
:param end_color: 結束顏色 (r, g, b)
:param height: 高度（漸層的總行數）
:return: 漸層顏色列表
"""
gradient = []
for i in range(height):
ratio = i / height
r = int(start_color[0] * (1 - ratio) + end_color[0] * ratio)
g = int(start_color[1] * (1 - ratio) + end_color[1] * ratio)
b = int(start_color[2] * (1 - ratio) + end_color[2] * ratio)
gradient.append((r, g, b))
return gradient
def draw_gradient_polygon(draw, vertices, start_color, end_color):
"""
繪製漸層顏色的多邊形
:param draw: PIL.ImageDraw對象
:param vertices: 多邊形頂點座標列表 [(x1, y1), (x2, y2), ...]
:param start_color: 開始顏色 (r, g, b)
:param end_color: 結束顏色 (r, g, b)
"""
x_coords, y_coords = zip(*vertices)
min_y, max_y = min(y_coords), max(y_coords)
height = max_y - min_y
gradient_colors = create_gradient_color(start_color, end_color, height)
for i, color in enumerate(gradient_colors):
draw.line([(min(x_coords), min_y + i), (max(x_coords), min_y + i)], fill=color)
def draw_dimension_line(draw, X1_DIM,Y1_DIM,X2_DIM,Y2_DIM, font_size, font_path,dim_space=20,arrow_length=10):
text_color='#e85fd6'
if Y1_DIM==Y2_DIM:
dim_txt=str(int(X2_DIM-X1_DIM))
draw_text(draw, dim_txt,((X1_DIM+X2_DIM)/2-font_size/2,(Y1_DIM+Y2_DIM)/2-font_size*2.5-dim_space), font_size, font_path, fill=text_color)
draw_line(draw, (X1_DIM, Y1_DIM-dim_space), (X1_DIM, Y1_DIM-arrow_length-dim_space), fill=text_color, width=1)
draw_line(draw, (X2_DIM, Y2_DIM-dim_space), (X2_DIM, Y2_DIM-arrow_length-dim_space), fill=text_color, width=1)
draw_line(draw, (X1_DIM, Y1_DIM-arrow_length/2-dim_space), (X2_DIM, Y2_DIM-arrow_length/2-dim_space), fill=text_color, width=1)
elif X1_DIM==X2_DIM:
dim_txt=str(int(Y2_DIM-Y1_DIM))
draw_text(draw, dim_txt,((X1_DIM+X2_DIM)/2-dim_space-2.5*font_size,(Y1_DIM+Y2_DIM)/2-font_size), font_size, font_path, fill=text_color)
draw_line(draw, (X1_DIM-dim_space, Y1_DIM), (X1_DIM-arrow_length-dim_space, Y1_DIM), fill=text_color, width=1)
draw_line(draw, (X2_DIM-dim_space, Y2_DIM), (X2_DIM-arrow_length-dim_space, Y2_DIM), fill=text_color, width=1)
draw_line(draw, (X1_DIM-arrow_length/2-dim_space, Y1_DIM), (X2_DIM-arrow_length/2-dim_space, Y2_DIM), fill=text_color, width=1)
def plot_Uchannel(B,H,T,env_left_txt,env_right_txt,env_left,env_right):
X_left,X_right,Y_top,Y_bottom=150,150,150,100
X0=X_left+T+B/2
Y0=Y_top+H
env_left_body=H-env_left+T
env_right_body=H-env_right+T
width, height = X_left+X_right+2*T+B, Y_top+Y_bottom+H+T
dpi = 100
image = Image.new('RGB', (width, height), 'white')
draw = ImageDraw.Draw(image)
font_path = "NotoSansTC-Regular.ttf"
font_size = 20
draw_text(draw, env_left_txt, (X0-B/2-T-X_left/2-20, Y0-H+env_left-font_size*2), font_size*1.2, font_path)
draw_text(draw, env_right_txt, (X0+B/2+T+X_right/2, Y0-H+env_right-font_size*2), font_size*1.2, font_path)
polygon_points = [ (X0-B/2-T, Y0-H+env_left), (X0-B/2-T-X_left, Y0-H+env_left), (X0-B/2-T-X_left, Y0-H+env_left+env_left_body), (X0-B/2-T, Y0-H+env_left+env_left_body)]
draw_gradient_polygon(draw, polygon_points, (51, 26, 0),(255, 255, 255))
polygon_points = [ (X0+B/2+T, Y0-H+env_right), (X0+B/2+T+X_right, Y0-H+env_right), (X0+B/2+T+X_right, Y0-H+env_right+env_right_body), (X0+B/2+T, Y0-H+env_right+env_right_body)]
draw_gradient_polygon(draw, polygon_points, (51, 26, 0),(255, 255, 255))
if env_left_txt=="田":
draw_line(draw, (X0-B/2-T, Y0-H+env_left), (X0-B/2-T-X_left, Y0-H+env_left), fill='green', width=4)
else:
draw_line(draw, (X0-B/2-T, Y0-H+env_left), (X0-B/2-T-X_left, Y0-H+env_left), fill=(0, 26, 51), width=4)
if env_right_txt=="路":
draw_line(draw, (X0+B/2+T, Y0-H+env_right), (X0+B/2+T+X_right, Y0-H+env_right), fill=(0, 26, 51), width=4)
else:
draw_line(draw, (X0+B/2+T, Y0-H+env_right), (X0+B/2+T+X_right, Y0-H+env_right), fill='green', width=4)
pts =[(X0,Y0),(X0-B/2,Y0),(X0-B/2,Y0-H),(X0-B/2-T,(Y0-H)),(X0-B/2-T,(Y0+T)),(X0+B/2+T,(Y0+T)),(X0+B/2+T,(Y0-H)),(X0+B/2,(Y0-H)),(X0+B/2,Y0),(X0,Y0)]
draw_polygon(draw, pts, outline='black', fill='gray', width=1)
X1_DIM,Y1_DIM=X0-B/2-T,Y0-H
X2_DIM,Y2_DIM=X0-B/2,Y0-H
draw_dimension_line(draw, X1_DIM,Y1_DIM,X2_DIM,Y2_DIM, font_size, font_path)
X1_DIM,Y1_DIM=X0-B/2,Y0-H
X2_DIM,Y2_DIM=X0+B/2,Y0-H
draw_dimension_line(draw, X1_DIM,Y1_DIM,X2_DIM,Y2_DIM, font_size, font_path)
X1_DIM,Y1_DIM=X0+B/2,Y0-H
X2_DIM,Y2_DIM=X0+B/2+T,Y0-H
draw_dimension_line(draw, X1_DIM,Y1_DIM,X2_DIM,Y2_DIM, font_size, font_path)
X1_DIM,Y1_DIM=X0-B/2-T,Y0-H
X2_DIM,Y2_DIM=X0-B/2-T,Y0
draw_dimension_line(draw, X1_DIM,Y1_DIM,X2_DIM,Y2_DIM, font_size, font_path)
X1_DIM,Y1_DIM=X0-B/2-T,Y0
X2_DIM,Y2_DIM=X0-B/2-T,Y0+T
draw_dimension_line(draw, X1_DIM,Y1_DIM,X2_DIM,Y2_DIM, font_size, font_path)
image.save("high_quality_drawing.png", dpi=(dpi, dpi))
image.show()
if __name__ == "__main__":
plot_Uchannel(300,200,30,"田","田",20,50)
|
