Hidden Lines (Thin) type lines consist of thin short dashes, closely and evenly spaced. These lines are drawn to represent hidden or invisible edges of the objects. Although
THICK lines of Type-E
are recommended for representing the hidden edges, THIN lines of Type-F are preferred.
It is standard practice to use
dashes
to represent any line of an object that is hidden from view.
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
.
AutoCAD Mechanical toolset automatically creates hidden lines when you specify which objects overlap the others.
The overlapped areas of the objects that lie behind (referred to as the background)
are drawn as hidden lines. Objects overlapping each other this manner are said to be involved in a “hide situation”.
Explanation:
Hatching lines
are used to show that the orthographic view is drawn after a section of the object is cut. They indicate that the object is cut and it shows the remaining solid body. Hidden lines are used to indicate holes or slots. 3.
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 is a visible line?
Visible lines are
the edges or “outlines” of an object
. They are drawn as solid lines with a thick/heavy weight.
What are the types of lines?
- Horizontal Lines.
- Vertical Lines.
- Parallel Lines.
- Perpendicular Lines.
How many types of lines are there in AutoCAD?
The AutoCAD software package comes with a library of standard linetypes that has
38 different
standard linetypes. Linetypes can be a pattern of dashes, dots, text, and symbols or unbroken and continuous.
- Select the viewport in which you want to show hidden lines.
- Click View tab Palettes panel Properties palette.
- On the Properties palette, under Misc, in the Shade Plot field, select As Displayed.
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.
Does the dotted line represent?
The dashed line often represents
something that is in a temporary or transitional state
. In this context, it is used as a placeholder, indicating there is more to come.
- Select the viewport in which you want to apply hidden lines.
- Click Window menu > Properties Inspector.
- On the Properties Inspector, Misc area, Shade Plot list, select Hidden.
Section views are used to expose these surfaces.
Section views do not include hidden lines
. Any material cut when a section view is defined is hatched using section lines.
Usually only the visible surfaces of an object are drawn in isometric,
with hidden lines left out
. Although this is considered the preferred practice, there are always times when hidden lines are needed to clarify very complex isometric drawings.
The term “isometric” is often mistakenly used to refer to axonometric projections, generally. There are, however, actually three types of axonometric projections:
isometric, dimetric and oblique
.
Hidden lines:
indicate areas or objects not visible on the surface, or objects hidden behind others
. They are also used to show objects above the cutting plane of a floor plan, such as wall cabinets, beams, arches, etc.
2.4.1 Object Lines and Hidden Lines
It has a thickness of
about 0.024′′ (0.6mm)
. Lines hidden from view by material in front of them are called hidden edge linesDashed lines that represent any line of an object that is hidden from view by material in front of it..
What do hidden lines in orthographic projections denote? Explanation: Hidden lines denote
those parts which cannot be seen when viewing the object
. They are used when there are holes or slots in the object if they cannot be viewed directly.
What are the types of lines in engineering drawing?
- A type – Continuos Thick.
- B type – Continuous THIN.
- C type – Continuous THIN Freehand.
- D type – Continuous THIN Zig-Zag.
- E type – Dashes THICK.
- F type – Dashes THIN.
- G type – Chain Thin.
- H type – Chain THIN and THICK.
What is border line in drawing?
A border is a
line drawn around the inside edge of the paper
. Usually this is 10mmm from the edge of the paper. It is basically a rectangle drawn precisely and inside this rectangle is the design area. … Faint guidelines have been drawn so that notes about each design can be added accurately.
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 do horizontal lines represent?
Horizontal lines indicate
a sense of motionless rest and peace
. Vertical lines are seen as tall and represent grandeur. Horizontal and vertical lines used together in a square or rectangular shape convey structure and represent stability. Diagonal lines move the eye in a direction and indicate movement and fluidity.
What are the three types of lines in art?
There are five main types of lines used in art:
horizontal lines, vertical lines, diagonal lines, zigzag lines, and curved lines
. The rest are just variations of the main ones.
What is a ray line?
A ray is a
part of a line that has one endpoint and goes on infinitely in only one direction
. You cannot measure the length of a ray.
What are chain lines?
Quick Reference. Chain-lines, or chain lines, are
the prominent, wide-spaced, parallel lines in laid paper
, used in both manuscripts and printed books, left by the wire mesh across the bottom of the …
What is line type and line weight in AutoCAD?
Linetypes | Linetype Scale | Lineweights. When you have been drawing in AutoCAD during these tutorials, almost all of
the lines
have been continuous. This is a particular linetype. Most simple drawings can be drawn with just this one linetype. … If you need a different linetype, you must load it into your current drawing …
Causes:
The linetype scale is too large or too small for the size of the affected object
. There is a problem with the display driver on the system. The linetype property of the line itself is Continuous, while its layer is assigned the desired linetype.
Why line type is not showing in AutoCAD?
If a linetype contains text characters and those do not display at the correct size in a drawing, most likely the text style that
the linetype uses has a defined height applied to it
. Enter the STYLE command. Select the text style. Change the height to 0 (zero).
What is line style in AutoCAD?
Linetype is
a visual property assigned to geometric objects
. Linetypes can be a pattern of dashes, dots, text, and symbols, or unbroken and continuous. The current linetype setting defines the default appearance of all new geometric objects.
What are the lines in AutoCAD?
The line object is
the most basic and common object in
AutoCAD drawings of any discipline. Each segment is a line object that can be edited separately, assigning properties such as layer, linetype, and lineweight.
Hidden Surfaces & Edges
Many objects drawn in engineering contain many features (lines, holes, etc.) that cannot be seen when the object is viewed from a particular angle. These hidden details are normally required on the drawing to show the true shape of the object. Hidden lines are used to
illustrate hidden detail
.
