What are the oblique and the two surveying in the oblique two surveying drawing method in mathematics

The angle between the positive half axis of X axis and the positive half axis of Y axis, the positive half axis of Y axis and the positive half axis of Z axis are all 45 degrees. The Z axis and X axis are perpendicular to each other. The height of Z axis is the same as the height of stereogram, the length of X axis is the same as the original normal scale, and the length of Y axis is two times of the original length

Given the three views of space geometry, how to draw his direct view with oblique two survey drawing method

Read a book. It's in the book. Refer to the third compulsory textbook of senior high school, PEP

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1. According to the three views of the given space geometry, draw its visual picture with oblique two survey drawing method
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