What are the types of lines used in drafting?

What are the types of lines used in drafting?

Three types of lines

  • Visible or Object Lines. Dark thick lines that show the outside edges of an object.
  • Construction Lines. Light lines that are drawn to help place other lines on a drawing.
  • Hidden Lines. Dashed lines that show parts of an object that cannot be seen from the current viewing angle.

What are the different types of lines used in dimensioning?

The basic types of dimensioning are linear, radial, angular, ordinate, and arc length.

What is a line in drafting?

A line has length, width, tone, and texture. It may divide space, define a form, describe contour, or suggest direction. You can find a line in every type of art. There are, of course, line art drawings and even the most abstract painting uses line as a foundation.

What are the 4 types of sketching lines?

Using the Alphabet of Lines

  • Construction Line. This line is used mainly in sketching, which is a freehand drawing technique.
  • Visible Object line. This line is used to draw all the edges of the object.
  • Hidden Object Line.
  • Centre Line (or centreline)
  • Extension Line.
  • Dimension Line.

What is an object line or visible line for drafting?

A visible line, or object line is a thick continuous line , used to outline the visible edges or contours of an object. 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.

What do diagonal lines mean in drafting?

The diagonal lines on the section drawing are used to indicate the area that has been theoretically cut. These lines are called section lining or cross-hatching. The lines are thin and are usually drawn at a 45-degree angle to the major outline of the object.

What is a section line in drafting?

Section lines are used to show the cut surfaces of an object in section views. They are fine, dark lines. Various types of section lines may indicate the type of material cut by the cutting plane line. Center lines are used to indicate the centers of holes, arcs, and symmetrical objects.

What are the types of drawing lines?

Line is a mark made using a drawing tool or brush. There are many types of lines: thick, thin, horizontal, vertical, zigzag, diagonal, curly, curved, spiral, etc. and are often very expressive.