If an edge or surface is blocked from view by another feature, it is drawn using a hidden line. Figures 4-11 and 4-12 show objects that require hidden lines in their orthographic views. The hidden portion of the line is drawn using a hidden-line pattern, and the visible portion of the line is drawn using a solid line..
Likewise, people ask, 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.
how is a hidden edge of an object drawn? Hidden lines. Hidden edge lines are drawn with short dashes and are used to show hidden features of an object. A hidden line should begin with a dash in contact with the line from which it starts, except when it is the continuation of an unbroken line.
Simply so, when hidden lines meet their dashes should?
Creating Hidden Lines Rule 2: Hidden lines should always begin and end with a dash. An exception is when the hidden line begins or ends at a parallel visible or hidden line.
What is the purpose of hidden lines and centerlines?
Object lines are used for outlining the shape and giving it its main features. What is the purpose of hidden lines and center lines? The purpose of hidden lines is to show where other faces exist that are not seen. Center lines show the diameter of circles in a sketch.
Related Question Answers
What does a hidden line look like?
If an edge or surface is blocked from view by another feature, it is drawn using a hidden line. Figures 4-11 and 4-12 show objects that require hidden lines in their orthographic views. The hidden portion of the line is drawn using a hidden-line pattern, and the visible portion of the line is drawn using a solid line.What is a hidden line?
hidden line. [′hid·?n ′līn] (graphic arts) For a three-dimensional object, a line that cannot be seen because view of it is obstructed by part of the object or of another object.Do isometric drawings have hidden lines?
Planes that are not parallel to any isometric plane are called non-isometric planes (Figure B) In isometric drawings, hidden lines are omitted unless they are absolutely necessary to completely describe the object. Most isometric drawings will not have hidden lines.What is a centerline?
noun. any line that bisects a plane figure: the centerline of a building plan. a line along the center of a road or highway dividing it into separate sections for traffic moving in opposite directions.What are the types of line?
Types of Lines. There are four types of lines: horizontal line, vertical line, perpendicular, and parallel lines.What is an adjacent view?
adjacent views are perpendicular to each. other. The projection or tie lines (thin lines) are viewing direction lines and are perpen- dicular to the fold lines (dashed ilnes).What is pictorial view?
Pictorial drawing. A view of an object (actual or imagined) as it would be seen by an observer who looks at the object either in a chosen direction or from a selected point of view. Pictorial sketches often are more readily made and more clearly understood than are front, top, and side views of an object.What is a hidden line in architecture?
Dashed lines are used to show either the hidden edges of an object or an important overhead construction. They are categorized into two types: Hidden lines are used to show the concealed edges of an object or a completely hidden object, like for example the foundation of a building or a structure covered by earth.What is a object line?
Object Line Object lines are solid heavy lines, . 7 mm to . 9 mm. These lines define the shape of the object portrayed and are the outermost outline of the object. A round bar is shown as a circle in one view and a rectangle in the other.What are leader lines?
A leader line is a line that establishes a connection between a graphical representation of an item and some text. A leader points to a bit of our drawing and says: 'Oi – Look Here' and 'Read This! '.What is a extension line?
Line Conventions, Continued Extension lines Extension lines are thin lines that extend from the object outline or point on the object to a place outside the image area. Extension lines define areas for dimensions.What is a Dimension line?
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.What is the purpose of center lines?
Structural lines and center lines are a key part of the sketching process for both traditional animation and standard drawing and are used to help create balanced, symmetrical figures with proper distribution of weight and perspective views.What is a section line in drawing?
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 auxiliary view?
An auxiliary view is an ortographic view taken in such a manner that the lines of sight are not parallel to the principal projection planes (frontal, horizontal, or profile). There are an infinite number of possible auxiliary views of any given object.What is an orthogonal view?
An orthographic projection (or orthogonal projection) is a two-dimensional drawing used to represent a three dimensional object. An orthographic view represents the exact shape of an object seen from one side at a time as you look perpendicularly at the object (without showing depth of the object).What is a hidden line on a blueprint?
Basic Blueprint Reading Hidden Line Hidden Line ? The hidden line is used to show features or edges of an object that is not visible. It is a broken line of medium thickness. Basic Blueprint Reading Center Line Center Line ? The center line is used to locate the center of features.What is isometric pictorial?
A pictorial representation of an object in which all three dimensions are drawn at full scale rather than foreshortening them to the true projection. An isometric drawing looks like an isometric projection but all its lines parallel to the three major axes are measurable.What is a multi view sketch?
Multi-view Drawing• A multi-view drawing is one that shows two or more two-dimensional views of a three-dimensional object. • Multi-view drawings provide the shape description of an object. • When combined with dimensions, multi- view drawings serve as the main form of communication between designers and manufacturers. 
