Isometric Drawing

 Isometric Drawing 

Isometric drawing is a representation in pictures of objects in which all three dimensions are drawn  according to scale. Here, the lines parallel to the major axes can be measured. Isometric drawing.

To draw Isomertic shapes we have to use sets squares. 

Set square has angles of 30degree, 45 degree, 60degree and 90degree.

Isometric drawings are used to understand the 3d views of sketches. It gives us of an idea of what something would look like when dimensions were added to it. They are made at 30 degree angles and cover a range to understand the relationship between spaces or objects.
The definition of an isometric drawing is a drawing of a three-dimensional shape on a two-dimensional surface along a vertical line with at least two identified points. All the horizontal lines of the image are created from the predetermined vertical line at 30-degree angles. The angles play a huge part in creating the three-dimensional, isometric view.

An isometric drawing is a 3D representation of an object, room, building or design on a 2D surface. One of the defining characteristics of an isometric drawing, compared to other types of 3D representation, is that the final image is not distorted. This is due to the fact that the foreshortening of the axes is equal. The word isometric comes from Greek to mean 'equal measure'. 

Who invented isometric drawing?

Professor William Farish, Cambridge University was the first to set down the rules for isometric drawing when he published his paper: 'On Isometric Perspective', in 1822. For this reason, he is often quoted as the creator of isometric drawing. Isometry means "equal measures" because the same scale is used for height, width, and depth". In an isometric drawing, the object appears as if it is being viewed from above from one corner, with the axes being set out from this corner point All the drawings are made at an angle of 30 degrees.

Along the River During the
Qingming Festival

However, isometric and axonometric drawings were commonplace long before this.The technique is often found in ancient, Chinese art. Along the River During the Qingming Festival is a famous art example of such. Chinese art used parallel projections within the painting that allowed the viewer to consider both the space and the ongoing progression of time in one scroll. 

Isometric drawing vs one-point perspective

Both isometric drawings and one point perspective drawings use geometry and mathematics to present 3D representations on 2D surfaces. 

One-point perspective drawings mimic what the human eye perceives, so objects appear smaller the further away they are from the viewer. One-point perspective drawings are typically used to give a more sensory idea of an object or space. 

Isometric drawing

• Where as isometric drawings use parallel projection, which means objects remain at the same size, no matter how far away they are.
• Isometric drawings are more useful for functional drawings that are used to explain how something works. 
• Isometric drawings are very useful for designers – particularly architects, industrial and interior designers and engineers, as they are ideal for visualising rooms, products, and infrastructure. 
• They're a great way to quickly test out different design ideas. 

   Conclusion

Isometric drawing is taught in all engineering, architect, interior designing courses. In the   school level the topic is briefly taught in Design subject.

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