dxf2png get white background

[Wananrd]

I am a AI student. I am not good at CAD. My project needs to use dxf to png.

I following the document learned how to transform, it succeed in 99.99% .dxf files, but some of them failed.

Please help me find where is problems and how to solve it.

Here is my dxf img and code. address_dxf.zip

`import ezdxf from ezdxf.addons.drawing import Frontend, RenderContext, pymupdf, layout, config import os

def dxf2png(file_name, save_folder): if file_name.endswith(".dxf"): try: doc = ezdxf.readfile(filename=file_name)

这里是你的其他处理代码

        msp = doc.modelspace()
        # 1. create the render context
        context = RenderContext(doc)
        # 2. create the backend
        backend = pymupdf.PyMuPdfBackend()
        # 3. create and configure the frontend
        cfg = config.Configuration(background_policy=config.BackgroundPolicy.WHITE)
        frontend = Frontend(context, backend, config=cfg)
        # 4. draw the modelspace
        frontend.draw_layout(msp)
        # 5. create an A4 page layout
        page = layout.Page(891, 891, layout.Units.mm, margins=layout.Margins.all(20))
        # 6. get the PDF rendering as bytes
        png_bytes = backend.get_pixmap_bytes(page, fmt="png", dpi=96)
        # 7. save png
        save_name = file_name.split("\\")[-1].split(".dxf")[0] + ".png"
        save_file = os.path.join(save_folder, save_name)
        with open(save_file, "wb") as fp:
            fp.write(png_bytes)

    except ezdxf.lldxf.const.DXFStructureError as e:
        print("捕获到DXFStructureError异常:", e)
        # 这里是处理异常的代码

if name == "main":

单独文件处理

dxf_file = "3B7P-L12100-1.dxf"
save_folder = "./result"
dxf2png(dxf_file, save_folder)`