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.OffSet封闭多边形的偏移(OffSet)方向问题，帮助中说：
“The offset can be a positive or negative number, but it cannot equal zero. If the offset is negative, this is interpreted as being an offset to make a "smaller" curve (that is, for an arc it would offset to a radius that is "Distance less" than the starting curve's radius). If "smaller" has no meaning, then it would offset in the direction of smaller X, Y, and Z WCS coordinates. ”
可是同样的形状，lwpolyline和2Dpolyline会偏向不同的方向。就算是同样的线型如lwpolyline当偏移值为正时，有时向外偏，有时向内偏。特别是当多边形时斜着的时候。 |
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置顶卡
