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Question: Is there any way to shade parts of the lines?

Question:Is there any way to shade parts of the lines?

Wang Gaoteng 173
December 16 2010
4

123123.mw

Hello,

I use some commands to generate a figure, as the picture illustrated, The equators of the two balls are solid lines.

It is not proper to demonstrate a 3D figure. I want to make parts of the equators become dash lines if they are shaded by the balls.Namely,if parts of the equators of the bigger ball are shaded,then the shaded parts become dash line,and if parts of the equators of the smaller ball are shaded by itself,then the shaded parts become dash line too.

Can you help me? Thank you.

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