几何变换


In this chapter all Cartesian coordinate systems are right-handed, and the vertical axis is always the y-axis


1. 齐次坐标--Homogeneous Coordinates

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This means that the point (x, y) has homogeneous coordinates (x, y, 1) making scaling superfluous


2. 二维变换

1) 平移--Translation

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2) 缩放--Scaling

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3) 镜像--Reflection

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4) 斜切--2D Shearing

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5) 旋转--2D Rotation


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2. 三维变换

1) 平移--Translation


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2) 缩放--Scaling


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3) 旋转--3D Rotation

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roll is the angle of rotation about the z-axis,
pitch is the angle of rotation about the x-axis,
yaw is the angle of rotation about the y-axis.

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4) 镜像--3D Reflections

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posted @ 2022-05-11 19:16  ParamousGIS  阅读(124)  评论(0编辑  收藏  举报