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Construction lines (also known as xlines) are temporary linework entities that can be used as references when creating and positioning other objects or linework. Construction lines are either circles or straight lines that extend to infinity in both directions.

## How do construction lines work in CAD?

To Work With Construction Lines

1. Click Home tab Draw panel Construction Line. Find.
2. Specify a point to define the root of the construction line.
3. Specify a second point through which the construction line should pass.
4. Continue to specify construction lines as needed. …
5. Press Enter to end the command.

## How do you construct a construction line?

Create a Construction Line by Specifying Two Points

1. Click Home tab Draw panel Construction Line. Find.
2. Specify a point to define the root of the construction line.
3. Specify a second point through which the construction line should pass.
4. Continue to specify construction lines as needed. …
5. Press Enter to end the command.

## What is the difference between an object line and construction line?

Construction Line: Very lightly drawn lines used as guides to help draw all other lines and shapes properly. Hidden Line: Lines used to show interior detail that is not visible from the current outside view of the part. Symmetrical parts. They are half as thick as an object line.

## What are alphabet lines?

The lines in the Alphabet of Lines are used to describe shape, size, hidden surfaces, interior detail, and alternate positions of parts. Each conveys a particular meaning on the drawing.

## What is long break line?

Long break lines are thin solid lines that have zigzags to indicate a break. … When either of these break lines is used to shorten an object, you can assume that the section removed from the part is identical to the portions shown on either side of the break.

## Do construction lines extend to your drawing limits?

After the datum point is specified, additional construction lines can be drawn through the same datum point. There is no limit to how many construction lines can be created.

## What is the difference between line and polyline in AutoCAD?

The first, it’s important to note the difference between a line or line segment, and a polyline. A line is simply a separate line or segment that is not joined to another line. While a Polyline indicates two or more lines have been joined.

## Are construction lines dark or light?

Drawings for interior design projects generally use three line widths: thick (dark), medium, and thin (light). Thick lines are generally twice as wide as thin lines, usually V32 inch or about 0.8 mm wide. … Figure 3-8 In a floor plan, the walls are often drawn darkest to define the spaces.

## What does construction line mean?

Construction lines (also known as xlines) are temporary linework entities that can be used as references when creating and positioning other objects or linework. … Construction lines are either circles or straight lines that extend to infinity in both directions.

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## What is the purpose of construction lines object lines?

Construction lines are lightly drawn lines that guide the creation and drawing of other lines and shapes. Object lines indicate the edges of the object being represented.