transform - Maple Help
For the best experience, we recommend viewing online help using Google Chrome or Microsoft Edge.

Online Help

Transformations in the geom3d Package

 

Description

Examples

Description

• 

The help page geom3d/transformation describes the transformations that can be applied directly to a specific geometric object.

• 

In general, to define a transformation without specifying the object to which the transformation is to be applied, use the "verb" form of the above transformations.

rotation

rotate

translation

translate

ScrewDisplacement

ScrewDisplace

reflection

reflect

RotatoryReflection

RotatoryReflect

GlideReflection

GlideReflect

homothety

dilate

homology

StretchRotate

• 

Using the function geom3d[inverse], one can compute the inverse of a given product of transformations, the function geom3d[transprod] converts a given transformation or product of transformations into a product of three "primitive" transformations (translate, rotate, and dilate), while the function geom3d[transform] is to apply the "result" transformation to a specific geometric object.

Examples

Define  which is a homothety with ratio 3, center of homothety (0,0,0)

(1)

Define the plane oxz

Define  which is a glide-reflection with  as the plane of reflection and  as the vector of translation

(2)

Define  as a screw-displacement with  as the rotational axis and  as a vector of translation

(3)

Compute  which is the product of

(4)

Compute the inverse of

(5)

Compute the product of ; one can quickly recognize that this is an identity transformation

(6)

Simple check

(7)

(8)

(9)

Hence, the two objects are the same

See Also

geom3d/objects

geom3d/transformation

geom3d[draw]

 


Download Help Document