Question: What Is A Phantom Line?

What do phantom lines look like?

Center Line: Centerlines consist of alternating long and short evenly spaced dashes, with a long dash at each end and short dashes at point of intersection.

Phantom Lines: Phantom lines are thin lines used to indicate alternate position of the parts of an object, repeated detail, or the location of absent parts..

What are alphabet lines?

The Alphabet of Lines is a list of line symbols that engineers use in technical drawings to communicate specific shapes, sizes or surfaces. In the Alphabet of Lines, thick, dark lines represent the outline of an object, showing its visible surfaces and edges.

What are leader lines?

A leader line is a line referring to some form of feature that could be a dimension, an object or an outline. … This can be a dot if the line ends within the outline of the part, an arrow if the line touches the outline or centre line of a feature or without either an arrowhead or a dot if the line touches a dimension.

What are the five basic types of lines?

There are 5 main types of lines in art: vertical lines, horizontal lines, diagonal lines, zigzag lines, and curved lines. Other types of lines are simply variations of the five main ones.

What are hidden lines in drawing?

Hidden lines in a drawing represent the edges where surfaces meet but are not directly visible. Hidden lines are omitted from pictorial drawings unless they are needed to make the drawing clear.

What are center lines?

Centerlines are one of the most frequently used tools in engineering drawing. Their basic purpose is to show circular/cylindrical features in a drawing, which are found in abundance in mechanical parts. … Centerlines indicate a circular feature on a drawing.

What is cutting plane line?

A cutting plane is represented on a drawing by a cutting plane line. This is a heavy long-short-short-long kind of line terminated with arrows. The arrows in show the direction of view. Once again, here is an graphic example of a cutting plane line and the section that develops from it.

What is a hidden line?

A hidden line, also known as a hidden object line is a medium weight line, made of short dashes about 1/8” long with 1/16”gaps, to show edges, surfaces and corners which cannot be seen. Sometimes they are used to make a drawing easier to understand. Often they are omitted in an isometric view.

What are the types of lines in AutoCAD?

About LinetypesThe Continuous linetype displays objects with a solid, unbroken pattern.The ByLayer linetype displays objects with the linetype assigned to the current layer.An explicitly set linetype, for example DASHDOT, displays objects with that linetype regardless of the current layer.More items…

What type of lines are used for hidden details?

Hidden line Hidden details are shown by a series of dashes making up a broken line. It is normal practice that you place a dash at the beginning of the hidden line and another at the end where it meets an intersecting line.

What is the use of cutting plane line?

Engineers use cutting plane lines on the plans they are drawing up to differentiate what is inside an object and what lies outside it. The cutting plane line bisects the object and provides a view of its interior features.

What is a phantom line in Autocad?

Phantom lines: Phantom lines are used to indicate imaginary features. For example, they are used to indicate the alternate positions of moving parts, and adjacent positions of related parts. The line type is long dash – short dash – short dash and the line weight is usually thin (0.3 mm).

Where do you put hidden lines?

Hidden lines are used to show surfaces that are not directly visible. All surfaces must be shown in all views. If an edge or surface is blocked from view by another feature, it is drawn using a hidden line.

How do you use hidden lines?

Hidden lines are dashed lines used to represent internal features that are obscured by the object. These hidden lines represent the obscured corner of the notch. potential hidden lines in this sketch fall directly behind visible lines in the right side view.

What does a Dimension line look like?

The dimension line is a thin line, broken in the middle to allow the placement of the dimension value, with arrowheads at each end (see diagram below). An arrowhead is approximately 3 mm long and 1mm wide. That is, the length is roughly three times the width.