Engineering Graphic Modelling

5.15

TYPES OF DRAWING

SECTOR DIAGRAMS

Term

Sector diagram, pie chart, slice of the cake diagram

Characteristics

A circle representing 100% is subdivided into sectors to show the

proportion attributable to the aspect named on a given sector. There

may be no calibrated scale, the diagram relies on the eye's ability to

readily divide a circle into parts.

required

J

material

'

properties

required

structure

form

dimension

surface

'

properties

function

structure

form

dimension

surface

achieved

function

!

dimension

surface

achieved

Example showing direct costs for a product