position与Alignment

If vertical mode is AcDb::kTextBase and horizontal mode is either AcDb::kTextLeft, AcDb::kTextAlign, or AcDb::kTextFit,

then the position point (DXF group code 10) is the insertion point for the text object and,

for AcDb::kTextLeft, the alignment point is automatically calculated based on the other parameters in the text object.

For all other vertical and horizontal mode combinations, the alignment point is used as the insertion point of the text and the position point is automatically calculated based on the other parameters in the text object.

如果垂直模式为AcDb:：kTextBase，而水平模式为AcDb:：kTextLeft、AcDb:：kTextAlign或AcDb:：kTextFit，则位置点（DXF组码10）是文本对象的插入点，

对于AcDb:：kTextLeft，对齐点将根据文本对象中的其他参数自动计算。

对于所有其他垂直和水平模式组合，对齐点用作文本的插入点，位置点将根据文本对象中的其他参数自动计算。