Lesson 2

Theoretical part

In the drawing, the image of the visible part of the surface of the object facing the observer is called the view. The names of the views depend on which side the object is viewed from when projecting.

The initial drawing is a front view, also called the main view. If you look at the object from the left side, then you get a view from the left at a right angle to the profile plane of projections. When looking at an object from above, it receives a top view perpendicular to the horizontal plane of projections.

Each view occupies a strictly defined place on the drawing about the main view. The left view is to the right of and on the same level as the main view, and the top view is below the main view. This rule cannot be violated by placing views in free places without special designation.

Knowing the rule for the arrangement of views, it is possible to represent the shape of an object in its flat drawings. To do this, you need to compare all the views in the drawing and recreate the three-dimensional shape of the object in your imagination. Along with front, top, and left views, you can use right, bottom, and back views to represent an object – all of these are called base views. However, the number of views in the drawing should be as small as possible, but sufficient to fully define the shape and dimensions of the object.

Practical part

1. We take drawing paper and draw in three projections the drawing of the building structure, which we prepared in the previous lesson. Each group should draw the building design they have prepared.

Homework

The groups should complete this drawing completely as homework.