Hidden lines.
Each line time is used to show different things. Some of the lines are, Center lines( long- and short-dashed lines.)cutting plane lines( thin, medium-dashed lines, or thick long- and double short-dashed) and section lines(thin lines in a pattern).
The Different drafting lines are the following:visible - are continuous lines used to depict edges directly visible from a particular angle.hidden - are short-dashed lines that may be used to represent edges that are not directly visible.center - are alternately long- and short-dashed lines that may be used to represent the axes of circular features.cutting plane - are thin, medium-dashed lines, or thick alternately long- and double short-dashed that may be used to define sections for section views.section - are thin lines in a pattern (pattern determined by the material being "cut" or "sectioned") used to indicate surfaces in section views resulting from "cutting." Section lines are commonly referred to as "cross-hatching."phantom - (not shown) are alternately long- and double short-dashed thin lines used to represent a feature or component that is not part of the specified part or assembly. E.g. billet ends that may be used for testing, or the machined product that is the focus of a tooling drawing.
On a topographic map dashed lines can represent boundaries (e.g. national, state, etc). A dashed line can also represent a hiking trail or a telephone, or above-ground oil or gas line.The color and length of the dashes can distinguish between one type and another. Check the map legend to understand the exact meaning.
The short dotted lines are the type of lines on a drawing that are designed to represent the hidden details.
these lines represent that the drawing is too large for he required space so the lines help the spectator to understand that the drawing is too big.
There are many things that lines could represent or express. Lines could represent neat cleanliness or extreme patience for example.
it means to rush
line style
Jezzball
Perforated
An open circle should have a dashed circumference, a closed circle a solid one.
tesco