No, not all drawings are perspective. To draw in persective there is a specific layout, useing the horizon, or a vanishing point,.. basicly giveig the drawing a 3d effect, of depth.
The different types of pictorial drawing include isometric, oblique, and perspective drawings. Isometric drawings show all three dimensions of an object in a single view with lines parallel to the three major axes. Oblique drawings represent objects in 3D by showing one face in true scale and the other two faces at an angle. Perspective drawings create the illusion of depth and distance by using vanishing points and converging lines.
There are three types of Pictorial Drawing: Isometric Drawing Perspective Drawing Oblique Drawing
Linear perspective
A. Axonometric and oblique drawings-three-dimensional drawings constructed without the use of perspective-are gaining popularity because they are quicker and easier to execute, and because their dimensions remain true to scale for any view. Because these views are easy to draw with instruments, they become suitable for use on working drawings.
A pictorial and schematic drawing show all of the components of a specific system and the wiring between these components. These drawings can be used for assembly or for trouble shooting and repair.
Italy
To read the piping and fabrication drawings easily and correctly the user must have significant knowledge about how the drawings are prepared, and the perspective in which these drawings can be presented.
The different types of pictorial drawing include isometric, oblique, and perspective drawings. Isometric drawings show all three dimensions of an object in a single view with lines parallel to the three major axes. Oblique drawings represent objects in 3D by showing one face in true scale and the other two faces at an angle. Perspective drawings create the illusion of depth and distance by using vanishing points and converging lines.
A knowlege of perspective and practice.
There are three types of Pictorial Drawing: Isometric Drawing Perspective Drawing Oblique Drawing
Isometric, Orthographic and Perspective, but perspective is not required to depict an object.
isometric views orthagraphic views perspective views
Osamu A. Wakita has written: 'Perspective drawing series' -- subject(s): Study and teaching, Drawing, Perspective 'The professional practice of architectural working drawings' -- subject(s): Working drawings, Designs and plans, Architecture, Architectural drawing, Study and teaching 'Perspective Drawing'
Linear perspective
A. Axonometric and oblique drawings-three-dimensional drawings constructed without the use of perspective-are gaining popularity because they are quicker and easier to execute, and because their dimensions remain true to scale for any view. Because these views are easy to draw with instruments, they become suitable for use on working drawings.
David Yue has written: 'Perspective drawings by programmable calculator' -- subject(s): Computer graphics, Data processing, Perspective, Programmable calculators
Understanding civil engineering drawings is a basic skill needed for electrical engineers as these drawings give them a perspective on how the building is being built and how electrical appliances will be installed or provided.