First... create these 3 curves (fig 19), or download this step 1 file (Right-Click Save-As), if you open this file you will have 3 curves : 1 straight curve and 3 circle curves (fig 19)

开始...创建3条曲线(fig 19),又或者在下里下载(点击右键另存为),如果你打这个文件，你将得到3条曲线: 1条笔直的曲线和3条画圈(fig 19).

OK first step, select all these curves, then select edit curves > intersect curves, you will have these 6 intersect areas, it means this operation will cut these intersect areas (fig 20). Next select back all of these curves then go to edit curves > cut curves. Now you will see some areas has been removed autmatically (fig 21)

第一步，选择所有的曲线，使用edit curves > intersect curves命令,你将在这些范围得到这6个相交点，这意味着我们将这这里剪切它们(fig 20).现在选择所有曲线并使用 edit curves > cut curves命令.现在你可以看到这些相交点自动的移动到相应位置.

But if you select them one-by-one (individualy), some of these curves are still connected (fig 22). We don't want it, cause for this operation, we need to separate all of the intersected curves.
OK now select back all these curves then go to edit curves > cut curves again, this time all of the areas has been cutted out (fig 23), ahhh...OK...this is whats we need to start.

如果最初你是一条一条的选择这些曲线，那么其中的一些曲线仍然是连接着的(fig 22).我们不想这要，我们需要分离所有的相交点.
好,再次选择所有曲线,再次使用 edit curves > cut curves,这次在所有的相交点都产生了剪切(fig 23).OK,这就是我们想要的结果.

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