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Rotation center at the midpoint; Rotation center off the midpoint;ÇëÎÊÕâÑù·­Òë¿ÉÒÔÃû´Ê¶ÌÓïʹÓÃÂð?
»¹ÓÐÔÚÎÄÕÂrotation center at the midpoint and off the midpoint ÕâÑùʹÓûáÓÐÆçÒåÂð£¿

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¾èÖú¹ó±ö (ÖøÃûдÊÖ)


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°®ÓëÓêÏÂ: ½ð±Ò+1 2015-12-19 20:57:14
¸öÈ˾õµÃÕâ¸öÊÇ¿ÉÒԵ쬷´Õýǰһ¸öRotation center at the midpoint¿Ï¶¨ÊÇûÓÐÎÊÌâ¡£
¶øºóÃæRotation center off the midpoint£¬¿¼ÂǶÔÕ̵ÄÒâÒ壬Õâ¸ö±È½ÏºÃ£»µ«ÊǺÜÉÙÓõ½Óõ½¡£
Èç¹ûÓÃRotation center deviating from the midpoint Òâ˼ÉϸüÃ÷È·µã£¬µ«ÊDz»¶ÔÕÌ¡£

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2Â¥2015-12-05 17:18:16
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

mac194

Ìú³æ (Ö°Òµ×÷¼Ò)

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NO: rotate at
YES: rotate about (ÈÆ×Å)

  rotate about the midpoint
  rotate about an axis away from the midpoint / center point

https://www.google.com/url?sa=t& ... mp;bvm=bv.110151844,d.eWE
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3Â¥2015-12-19 07:46:11
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

mac194

Ìú³æ (Ö°Òµ×÷¼Ò)

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ÕâÖÖÇé¿öºÜ¿ÉÄÜÐèÒª¿¼ÂÇ  ¹ßÐÔ¾Ø moment of inertia  ºÍ  ÐýתÖÐÐÄ  center of gyration
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