有办法改变ezdxf中的背景色吗？

Question

我想改变照片的背景色，因为不清楚我试图改变matplotlib背景的图形，但它不能工作

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    import matplotlib.pyplot as plt
    import ezdxf
    from ezdxf.addons.drawing import RenderContext, Frontend
    from ezdxf.addons.drawing.matplotlib import MatplotlibBackend
    plt.rcParams["savefig.facecolor"] = 'black'
    plt.rcParams['axes.facecolor'] = 'black'

    doc = ezdxf.readfile("second.dxf")
    msp = doc.modelspace()
    doc.layers.new(name='MyLines', dxfattribs={'linetype': 'DASHED', 'color': 8})


    auditor = doc.audit()


    if len(auditor.errors) == 0:
       fig = plt.figure()
       ax = fig.add_axes([0, 0, 1, 1])
       ctx = RenderContext(doc)
       out = MatplotlibBackend(ax)
       Frontend(ctx, out).draw_layout(msp, finalize=True)
       fig.savefig('your.png', dpi=300, facecolor = 'black', edgecolor = 'black')

Answer 1

尝试重写MODEL_SPACE_BG_COLOR变量：

ezdxf.addons.drawing.properties.MODEL_SPACE_BG_COLOR = "#FFFFFF"

Answer 2

drawing外接程序仍然处于测试阶段，但您可以尝试将背景设置为白色：

if len(auditor.errors) == 0:
    fig = plt.figure()
    ax = fig.add_axes([0, 0, 1, 1])
    ctx = RenderContext(doc)

    # --- add this lines ---
    ctx.set_current_layout(msp)
    ctx.current_layout_properties.set_colors(bg='#FFFFFF')
    # --- add this lines ---

    out = MatplotlibBackend(ax)
    Frontend(ctx, out).draw_layout(msp, finalize=True)
    fig.savefig('your.png', dpi=300, facecolor = 'black', edgecolor = 'black')