Secondary III • 1yr.

What is isometric projection used for and what is the difference with an oblique projection? Thanks for the help

Français

Secondary III • 1yr.

Explanation from Alloprof

This Explanation was submitted by a member of the Alloprof team.

Thanks for your question!

Isometric projection allows you to visualize all three dimensions of an object so that they all intersect at an angle of 120 °.

An advantage of isometric projections is that all edges of an object parallel to the axes have the same scale as these axes. In other words, it is possible to use the edges of the object parallel to the axes of the drawing in order to find the true dimensions of an object.

Also, like in all three-dimensional projections, isometric projections allow a view of all the dimensions of the object.

The difference between isometric projections and oblique projections is that oblique projections depict an object in a way that one of its faces is parallel to the drawing plane. None of the faces of an object that are parallel to an axis in a drawing with an isometric projection are parallel with the drawing sheet.

Also, the three dimensions of an object do not intersect at a 120 ° angle in a drawing with an oblique projection.

Don’t hesitate to ask other questions!