Graphics Reference
In-Depth Information
9
Combining Transformation
Operators
This chapter discusses the effects of and strategies for combining basic transfor-
mation operators. This chapter:
• analyzes the advantages and costs of combining transformation operators;
• describes the process of inverting a combined transformed operator;
• explains approaches to combine and design new transformation operators
to accomplish specific scaling and rotation tasks;
• derives graphics API support for programming transformations and devel-
ops an abstraction to assist in the programming of transformations with
graphics APIs.
After this chapter we should:
• understand the effects and results of combined transformation operators;
• understand how to design new transformation operators to manipulate basic
geometric shapes based on simple specifications.
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