dxf文件转为svg

def convert_dxf_to_svg(dxf_file_path, svg_file_path):

# 读取DXF文件

dxf = dxfgrabber.readfile(dxf_file_path)

# 找到DXF中的最大和最小坐标值，以计算视图框

min_x = min(vertex[0] for entity in dxf.entities for vertex in entity.points)

max_x = max(vertex[0] for entity in dxf.entities for vertex in entity.points)

min_y = min(vertex[1] for entity in dxf.entities for vertex in entity.points)

max_y = max(vertex[1] for entity in dxf.entities for vertex in entity.points)

width = max_x - min_x

height = max_y - min_y

# 计算平移量，将图像向右下方平移

offset_x = 25 # 设置X轴平移量

offset_y = 25 # 设置Y轴平移量

# 创建SVG绘图对象

svg_drawing = Drawing(svg_file_path, profile='tiny', size=(f"{width + 50}px", f"{height + 50}px"))

# 遍历DXF文件中的实体

for entity in dxf.entities:

# 处理LWPOLYLINE实体

if entity.dxftype == 'POLYLINE':

polyline = entity

vertices = polyline.points

# 创建多边形的点坐标列表，并进行平移

# points = [(vertex[0] - min_x, max_y - vertex[1]) for vertex in vertices]

points = [(vertex[0] - min_x + offset_x, max_y - vertex[1] + offset_y) for vertex in vertices]

# 创建多边形，设置填充和边框颜色属性

polygon = svg_drawing.polygon(points=points, fill="#FFFFFF", stroke="#000000")

# 将多边形添加到SVG绘图对象中

svg_drawing.add(polygon)

# 保存SVG文件

svg_drawing.save()