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critical analysis of the absence of interior - Bilkent University

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4.1 Features <strong>of</strong> <strong>the</strong> Proposed Model<br />

The features <strong>of</strong> a s<strong>of</strong>tware package describe how an application behaves under<br />

particular circumstances. Therefore, <strong>the</strong> proposed model will be evaluated according<br />

to its; ‘drawing’, ‘transformations’, ‘view’, ‘rendering’ and ‘o<strong>the</strong>r’ features. Figure<br />

4.3 represents an overall picture <strong>of</strong> this feature categorization and <strong>the</strong>ir dependency<br />

to each o<strong>the</strong>r. Existence <strong>of</strong> any item depends on <strong>the</strong> existence <strong>of</strong> ano<strong>the</strong>r item. For<br />

instance, ‘transformations’ can not be applied unless <strong>the</strong>re is an object in <strong>the</strong> scene.<br />

Following tables and figures include <strong>the</strong> details <strong>of</strong> each feature item.<br />

DRAWING<br />

2D OBJECTS<br />

2D SYMBOLS<br />

3D OBJECTS<br />

3D SYMBOLS<br />

RENDERING<br />

MATERIAL<br />

LIGHTING<br />

OTHERS<br />

VIEW<br />

2D VIEW<br />

3D VIEW<br />

Figure 4.4 Features <strong>of</strong> <strong>the</strong> proposed model<br />

102<br />

TRANSFORMATIONS<br />

GEOMETRIC TRANSFORMATIONS<br />

TOPOLOGICAL TRANSFORMATIONS<br />

BOOLEAN OPERATIONS<br />

OTHER FEATURES<br />

GROUPING DIMENSIONING<br />

TYPING<br />

LAYERING<br />

HATCHING<br />

UCS<br />

CALCULATION<br />

COST ESTIMATION<br />

COMMAND LINE<br />

TEXTING

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