Question: How Are Hidden Lines Represented On A Drawing?

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 do I show hidden lines in Autocad?

To Create a Hidden Line ProjectionOpen the tool palette that you want to use, and select a hidden line projection tool. … In a 3D view select one or more objects that you want to use to create your hidden line projection, and press Enter.Specify an insertion point in your current drawing for the 2D hidden line projection.More items…•

What does dotted line represent in engineering drawing?

Dashed lines used to form the shape of features that are not visible. Solid line with a dash then a solid line used to identify the center of a feature. Solid line with arrowhead tips followed by a dimension used to identify where the dimension represents.

What do hidden lines look like?

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.

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. Figures 4-11 and 4-12 show objects that require hidden lines in their orthographic views.

How do you show hidden lines in paper space?

Show Hidden Lines in the Current ViewportSelect 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.

How do you show hidden lines in AutoCAD 3d?

To show hidden lines in the current viewportSelect the viewport in which you want to show hidden lines.Click Window menu > Properties Inspector.On the Properties Inspector, Misc area, Shade Plot list, select As Displayed.

How do you draw a centerline in AutoCAD?

To add a center line select the Centerline tool from Centerlines panel of Annotate tab and click on the two lines. The center line will be automatically added in between the selected lines. If the lines are intersecting then the center line will pass through the angle bisector of the lines as shown in the image below.