小白问一下反向鱼叉图的画法# Stock
y*u
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新手请教一下各位大牛，推荐的那本鱼叉书里面是不是由typo啊，有的看不太懂呀。等
一下贴那个图上看来，请问那个反向鱼叉的具体的画法呀！多谢多谢。
我的理解是先连线P1和P2点，然后通过P2和P3的连线中点画平行线平行Linep12，最后
将下面那根平行线通过P3反向延长出去，是这样的吗？
The Reverse Median Line construct is drawn like the regular Median Line
construct by choosing three alternative pivots, but instead of using P1 as
the beginning pivot, P3 is used. The mid-point between P2 and P1 is then
located. A line is then drawn from P3 through the mid-point of P2 and P3.
The parallel lines are then drawn. Because the pitchfork will be extending
to the left rather than the right, the pitchfork lines need to be extended
to the right.
这段话里其实没有必要去locate那个P1和P2的midpoint吧？
一下贴那个图上看来，请问那个反向鱼叉的具体的画法呀！多谢多谢。
我的理解是先连线P1和P2点，然后通过P2和P3的连线中点画平行线平行Linep12，最后
将下面那根平行线通过P3反向延长出去，是这样的吗？
The Reverse Median Line construct is drawn like the regular Median Line
construct by choosing three alternative pivots, but instead of using P1 as
the beginning pivot, P3 is used. The mid-point between P2 and P1 is then
located. A line is then drawn from P3 through the mid-point of P2 and P3.
The parallel lines are then drawn. Because the pitchfork will be extending
to the left rather than the right, the pitchfork lines need to be extended
to the right.
这段话里其实没有必要去locate那个P1和P2的midpoint吧？
