我有一个...pdf 文件，其中包含如下图表：
现在，第二幅图在 TikZ 上绘制起来并不难（我猜想......我希望如此？除了绘制电路之外，我没有任何经验！），但我更担心的是像第一张图片这样的图形。我想在代码中重新绘制它们（就像在 TikZ 或任何软件包中一样），这样它们看起来的质量会比我直接截取屏幕截图并将其发布在我的 LaTeX 文档中更高。
是否有任何工具可以自动将此类图像转换为代码？它不必完美无缺，我可以根据需要进行调整，我只希望至少完成基本代码，这样我就不必从头开始处理每一个。即使在网上找到的示例也无法真正匹配第一张图片，而且我宁愿不翻阅大量示例/pdf/操作指南来绘制相对简单的东西。那么我如何才能轻松地用代码处理像第一个绘图这样的问题，即将其转换为可编译代码？任何帮助都将不胜感激！
答案1
我推荐使用以下工具组合：
安装 Inkscape 后，您可以将 svg2tikz 放入./config/inkscape/extensions目录中并重新启动程序以获取此功能。现在，您只需将位图转换为矢量。Inkscape 内置了此功能（版本 0.48）。
分步说明：
- 导入位图
File->Import - 选择位图并选择
Path->Trace Bitmap - 根据我的选项调整你喜欢的选项
- 单次扫描，亮度截止值为 0.8
- 抑制 6px 处的斑点
- 1.00 处的圆滑角
- 优化 5.00 的路径
- 选择新创建的路径。您可能希望
Path->Simplify此时进行选择，但我发现 Inkscape 的简化算法过于激进。 - 您可能还想使用 将路径分成多个区域
Path->Break Apart。如果您看到“0”或“B”等黑底白字，这会引起一些惊愕。您应该选择您真正想要的子路径，然后使用 重新组合它们Path->Exclusion。 - 修饰图像。我建议用实际文本替换字母/数字，以及用单条描边线替换轴。这将大大减少 tikz 路径的整体大小。
- 使用结果导出图形
Extensions->Export->Export to TiKZ path如下。
我做了一些修改以适应 SE 的 40,000 个字符限制。我在导出之前替换了文本，然后手动添加了轴标签。我只发布了第一个代码，但将两个图像输出放在下面。步骤相同。我还使用 grep 将导出的十进制输出截断为 2 位数字（而不是 4 位）。
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cycle(402.66,194.93) .. controls (403.87,194.86) and
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controls (340.37,202.91) and (338.82,202.32) .. (338.82,201.09) ..
controls (338.82,200.51) and (339.88,199.38) .. (340.42,199.38) --
cycle(315.20,202.71) .. controls (315.24,202.72) and
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controls (280.99,223.04) and (279.96,222.62) .. (280.61,221.52) ..
controls (280.88,221.05) and (280.92,220.81) .. (280.76,220.65) ..
controls (280.40,220.29) and (280.49,219.73) .. (280.93,219.60) ..
controls (281.00,219.57) and (281.08,219.55) .. (281.15,219.55) --
cycle(266.57,228.02) .. controls (267.02,228.02) and
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controls (261.80,235.37) and (262.06,235.42) .. (262.32,235.52) ..
controls (263.27,235.88) and (263.14,237.87) .. (262.14,238.25) ..
controls (261.57,238.47) and (261.33,238.39) .. (260.77,237.81) ..
controls (259.71,236.70) and (260.33,235.37) .. (261.57,235.37) --
cycle(258.62,237.56) .. controls (259.87,237.56) and
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controls (252.42,243.67) and (252.65,243.69) .. (252.94,243.70) ..
controls (254.82,243.79) and (255.07,244.68) .. (253.65,246.18) ..
controls (252.14,247.78) and (250.64,246.39) .. (251.49,244.17) ..
controls (251.63,243.79) and (251.71,243.68) .. (252.24,243.67) --
cycle(250.22,252.18) .. controls (251.48,252.18) and
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controls (233.36,272.71) and (233.81,272.73) .. (234.37,272.73) ..
controls (237.50,272.79) and (237.66,272.87) .. (237.72,274.63) ..
controls (237.76,276.21) and (237.55,277.11) .. (236.94,277.93) ..
controls (236.66,278.29) and (236.31,278.91) .. (236.14,279.30) ..
controls (235.84,280.03) and (235.33,280.22) .. (234.88,279.77) ..
controls (234.23,279.12) and (234.29,279.97) .. (234.95,280.81) ..
controls (235.85,281.94) and (235.78,282.13) .. (234.39,282.20) ..
controls (232.87,282.28) and (232.72,282.50) .. (232.70,284.66) ..
controls (232.69,285.62) and (232.57,286.61) .. (232.44,286.85) ..
controls (231.87,287.89) and (232.13,289.06) .. (233.11,290.00) ..
controls (234.15,290.99) and (234.21,291.35) .. (233.71,293.31) ..
controls (233.53,293.98) and (233.21,295.34) .. (232.99,296.33) ..
controls (232.77,297.32) and (232.45,298.40) .. (232.29,298.71) ..
controls (232.13,299.03) and (231.99,299.60) .. (231.99,299.98) ..
controls (231.99,300.36) and (231.94,300.96) .. (231.87,301.31) ..
controls (231.74,301.93) and (231.33,302.15) .. (231.07,301.73) ..
controls (230.89,301.43) and (231.20,290.58) .. (231.40,290.04) ..
controls (231.50,289.77) and (231.45,289.23) .. (231.28,288.67) ..
controls (230.96,287.60) and (231.03,281.53) .. (231.40,278.10) ..
controls (231.52,277.00) and (231.59,275.45) .. (231.56,274.65) ..
controls (231.50,273.00) and (231.43,272.73) .. (233.00,272.72) --
cycle(239.51,273.31) .. controls (241.25,273.31) and
(242.16,275.09) .. (241.02,276.24) .. controls (240.84,276.41) and
(240.59,276.54) .. (240.46,276.52) .. controls (240.33,276.51) and
(239.90,276.45) .. (239.51,276.41) .. controls (237.76,276.21) and
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controls (238.47,278.21) and (238.53,278.22) .. (238.59,278.22) ..
controls (239.43,278.31) and (239.52,278.99) .. (238.81,279.92) ..
controls (237.77,281.28) and (236.87,281.23) .. (236.87,279.81) ..
controls (236.87,278.89) and (237.54,278.22) .. (238.41,278.21) --
cycle(234.40,283.25) .. controls (234.90,283.26) and
(235.21,283.73) .. (234.72,284.38) .. controls (233.86,285.51) and
(234.21,285.89) .. (235.29,284.98) .. controls (235.62,284.70) and
(235.97,284.53) .. (236.07,284.59) .. controls (236.41,284.80) and
(236.30,286.66) .. (235.94,286.79) .. controls (234.18,287.47) and
(232.25,285.17) .. (233.41,283.78) .. controls (233.72,283.40) and
(234.09,283.24) .. (234.40,283.25) -- cycle;
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