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Unit 4.1 Designing
Page 175


4. Complete the text with the correct words.

TYPES OF REPRESENTATION

Types of representation focus on the reproduction of a 3D object on a 1. through the use of projection techniques that allow views of an object from 2. imaginary planes.
The first main type of projection techniques is 3. projection. This category includes 4. projection as well as orthographic projection, which can be further divided into two key methods: 5. projection (that can be isometric, 6. , and trimetric), and multi-view projection.
The second main type is 7. projection, which can be a 1-point perspective or a 8. projection.
5. Match each type of representation to its description.
The projection lines are perpendicular to the surface.The angles between the three projections are unequal.The lines of the 3D object remain parallel to each other.Two of the object faces are equally inclined.An object is rotated along one or more of its axes relative to the plane of projection.There are more vanishing points.The horizontal edges are drawn on the 30° angle and verticals are perpendicular to the horizontal base.The face parallel to the picture plane is represented in an accurate manner, but the other faces are drawn on any convenient angle other than 90°.The lines of projection converge at a single point.More than one projection plane is used.
Parallel projection →
Orthographic projection →
Axonometric projection →
Isometric projection →
Dimetric projection →
Trimetric projection →
Multi-view projection →
Oblique projection →
Perspective projection →
Multi-point perspective →
6.1 Listen to the recording about multi-point perspective and look at the picture, then answer the question: what does the number of vanishing points depend on?
aperta
6.2 Listen to the recording about multi-point perspective and look at the picture both in the previous exercise, then answer the question: where are the vanishing points of a two-point perspective placed? aperta
6.3 Listen to the recording about multi-point perspective and look at the picture both in the Exercise 6.1, then answer the question: where can a third vanishing point be placed? aperta
6.4 Listen to the recording about multi-point perspective and look at the picture both in the Exercise 6.1, then answer the question: how do the vertical lines remain in two-point perspective? aperta
6.5 Listen to the recording about multi-point perspective and look at the picture both in the Exercise 6.1, then answer the question: in a three-point perspective, where does the vantage point face? aperta
6.6 Listen to the recording about multi-point perspective and look at the picture both in the Exercise 6.1, then answer the question: where do the set of orthogonal lines converge? aperta