文件名称:CalcQieDian3
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三点A，B，C (坐标A.x, A.y ......)
A、B是矩形的两端点
且C在与AB平行的 矩形另一边上 或其延长线上
求矩形另外两端点M、N
再求与MN夹角为45度，与M距离为10的点P
以及与MN夹角45度，与N距离为10的点Q
注：P、Q都在矩形内部
-Three points A, B, C (coordinates Ax, Ay ......) A, B is rectangular and the two end points of C with AB parallel to the edge of another rectangle or its extension line of the other two end points for the rectangular M, N re-seek with the MN angle of 45 degrees, and M a distance of 10 points, P and MN angle 45 degrees, and N a distance of 10-point Q Note: P, Q are inside the rectangular
A、B是矩形的两端点
且C在与AB平行的 矩形另一边上 或其延长线上
求矩形另外两端点M、N
再求与MN夹角为45度，与M距离为10的点P
以及与MN夹角45度，与N距离为10的点Q
注：P、Q都在矩形内部
-Three points A, B, C (coordinates Ax, Ay ......) A, B is rectangular and the two end points of C with AB parallel to the edge of another rectangle or its extension line of the other two end points for the rectangular M, N re-seek with the MN angle of 45 degrees, and M a distance of 10 points, P and MN angle 45 degrees, and N a distance of 10-point Q Note: P, Q are inside the rectangular
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CalcQieDian3.cpp