Translation and rotation formula of grade two
The translation formula is "Fixed point on the same straight line, bracket direction will move" and the rotation formula is "Fixed point on the same straight line, bracket direction will rotate". Both formulas describe the characteristics of translation and rotation on the premise that the fixed point is on a straight line. In translation, one point is fixed and other points move along the same straight line. At this time, it is necessary to determine the direction of movement according to the direction of brackets. In rotation, when one point is fixed and other points rotate along the same straight line, it is also necessary to determine the direction of rotation according to the direction of brackets. Translation and rotation are basic transformation methods in two-dimensional plane, which are widely used in mathematics, physics and other fields. At the same time, translation and rotation are also common transformation methods in computer graphics. It is more convenient for developers to master these two formulas for programming related to graphic transformation.