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## What Is Oblique Drawing?

Oblique Drawing is a type of projective drawing in which the frontal lines are given in true proportions and relations and all others at suitable angles other than 90 degree without thinking about the rules of linear perspective.

Oblique Drawing is a pictorial representation of an object, in which the diagram is intended to depict the perspective of objects in three dimensions.

Oblique Drawing can be done either in a normal, cabinet, or cavalier style. In marketing departments while doing their business process to illustrate the product and its features, Oblique Drawing is generally used by them.

Now a days in our daily lives, we come across different three-dimensional objects such as football, cricket bats, etc.

With the help of Oblique Drawing we can easily draw any three-dimensional object in a two-dimensional plane like paper.

A cube is a three-dimensional object but when we draw the image of the cube on paper, it gives us a clear picture as to how a cube looks like.

The paper is in a two-dimensional plane but a three-dimensional solid like cube can be drawn on it. This way of drawing is known as Oblique Drawing.

**Oblique Drawing Examples:**

**Step 1.** Let’s make an Oblique Drawing of a cube of size **4 x 4 x 4** on a piece of paper.

**Step 2.** First draw the front face of the cube measuring **4 x 4.**

**Step 3.** Then draw the back face of the cube measuring **4 x 4** a little further from the first cube, which will offset with respect to the front face.

**Step 4.** Then join the corresponding corners of the front face and back face of the cube.

**Step 5.** Then redraw the hidden edges as dotted lines. The hidden edges are the lines that cannot be seen from the front face of the cube.

**Step 6.** While drawing the whole process we must keep in mind that the size of the front and back end of the oblique drawing are the same and all the edges of a cube are equal in reality but the measurement is different in the drawing.

**What Is Oblique View?**

An oblique view is a pictorial view of an object that shows its elevation, plan, or a section which can be used to scale with parallel lines projected from the corners, that is at 45 degrees or any other angle, which indicates the other sides.

Also, Read: First Angle Projection & Third Angle Projection Symbol (Orthographic Projection)

**Oblique Projection:**

Oblique Projection is a type of technical drawing that is used for drawing graphical projections of three-dimensional objects on two-dimensional planes.

The most common technique used for technical drawing is Oblique Projection.

From the first or second century to 18th-century Oblique Projection was used almost universally by Chinese artists for depicting rectilinear objects such as houses.

**Oblique Shape:**

When an object in geometry is distorted so that it seems to lean over at an angle or as opposed to being exactly upright is said to have an oblique shape.

Oblique Shape is referred to a shape, either plane or space, that has either an acute angle or an obtuse angle.

Oblique Shape is shaped that has an oblique angle that is they have acute angles (angles that are between 0 degree to 90 degree) or obtuse angle (angles that are between 90 degree to 180 degree).

In an Oblique Shape the side that forms the angles are never perpendicular, if told in simple terms these sides will never meet.

Also, Read: Standard Room Size | How to Draw House Plan Step By Step

**Cabinet Oblique:**

- Cabinet Oblique is popularly used in furniture illustration, where the receding axis is scaled to half the size of the original object.
- Cabinet Oblique is also sometimes called cabinet perspective is a type of oblique projection.
- In Cabinet Oblique one face of the projected object is parallel o the viewing plane, and the third axis is projected as going off at an angle between 30 degree to 45 degree.
- In Cabinet Oblique projections the receding lines are shortened by half of their true length to compensate for distortion and to approximate more closely what the human eye would see. Cabinet Oblique is the most used form of oblique drawing due to this reason.

**What Is Cavalier Drawing?**

In cavalier drawing all lines including receding lines and the three-axis lines are made to their true length which means that if an object is shown is **4 cm deep** then while drawing that object with a cavalier method we have to draw the object **4 cm** deep.

Cavalier drawing is mostly used for drawing of oblique projection construction. In a cavalier drawing one axis is horizontal, the second axis is vertical, and the third axis is at 45 degree to the horizontal line.

Cavalier drawing resembles very closely the actual image.

Also, Read: Principle of Plane Table Surveying Methods | Equipment | Error | Advantage | Limitation

**Cavalier Projection:**

Cavalier Projection is sometimes called cavalier perspective or high viewpoint.

Cavalier Projection is a technique of drawing where a point of the object is represented by three coordinates, are **x, y, and z**. Normally while drawing Cavalier Projection is represented by only two coordinates, that is ‘**x**’ and ‘**y**’.

When we are using Cavalier Projection for flat drawing, the two main axes ‘**x**‘ and ‘**z**’ on the figures that we draw are perpendicular to each other and the length on this two-axis are drawn in a **1:1** scale.

This step is quite similar to the diametric projections, although it is not similar to axonometric projection, as the third axis, that is ‘**y**’ axis is drawn in diagonal making an arbitrary angle of **30 degree or 45 degree** with the ‘**x**’ axis.

The drawn length of the third axis, which is ‘**y**’ axis, is not scaled.

When a figure must be drawn by hand like with pen and paper or on a blackboard, Cavalier Projection is used as it is very easy to draw and the drawing is very similar to the actual image.

**Cavalier View:**

Cavalier View or cavalier perspective is the way we see an object when that object is seen from a high point.

In Cavalier View the lines of projection are at a 45 degree angle to the plane of projection.

**Oblique Drawing**

A projective **drawing** of which the frontal lines are given in true proportions and relations and all others at suitable angles other than 90 degrees without regard to the rules of linear **perspective**.

### Types of **Oblique Projection**.

There are two **types of oblique projections** − Cavalier and Cabinet. The Cavalier **projection** makes 45° angle with the **projection** plane. The **projection** of a line perpendicular to the view plane has the same length as the line itself in Cavalier **projection**

**Oblique View**

One way to draw using an **oblique view** is to draw the side of the object you are looking at in two dimensions, i.e. flat, and then draw the other sides at an angle of 45°, but instead of drawing the sides full size they are only drawn with half the depth creating ‘**forced depth**‘-adding an element of realism to the object.

**Oblique Projection**

**Oblique projection** is a type of parallel **projection**: it projects an image by intersecting parallel rays (projectors) from the three-dimensional source object with the drawing surface (**projection** plan).

**Oblique Shape**

In geometry, an **oblique** object is one that is distorted so that is seems to ‘lean over’ at an angle, as opposed to being exactly upright. One that is not **oblique** and is upright is called a ‘right’ object.

Also, Read: What Are Planted Column, Floating Column, Hanging Column, and Stub Column

**Cabinet Oblique**

An **oblique** projection in mechanical drawing in which dimensions parallel to the third axis of the object are shortened one half to overcome apparent distortion.

**Cavalier Drawing**

In **cavalier** projection (sometimes **cavalier** perspective or high view point) a point of the object is represented by three coordinates, x, y, and z. On the **drawing**, it is represented by only two coordinates, x″, and y″. The **cavalier** perspective was the way things were seen from this high point.

### Cavalier Oblique Definition

**Cavalier Oblique:** The **cavalier** perspective, also called **cavalier** projection or high view point, is a way to represent a three-dimensional object on a flat drawing, and more specifically, a type of **oblique** projection.

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kaju says

Nice Detail: oblique projection