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”.
What are hidden lines used for?
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.
How do I show hidden lines in AutoCAD?
Show Hidden Lines in the Current Viewport
- 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.
30 мар. 2020 г.
What does a hidden lines represent 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. Figure 3.46 shows a case in which hidden lines are needed because a projecting part cannot be clearly shown without them.
What is a hidden detail line?
Hidden details are shown by a series of dashes making up a broken line. It is normal practice that you place a dash at the beginning of the hidden line and another at the end where it meets an intersecting line.
What do hidden lines look like?
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. Sometimes they are used to make a drawing easier to understand. Often they are omitted in an isometric view.
How do I find hidden lines in an object?
A drafter—in deciding whether a line in a view should be represented as hidden or as visible—relies on the fact that in third-angle projection the near side of the object is near the adjacent view, but in first-angle projection the near side of the object is remote from the adjacent view.
How do I hide hidden lines in AutoCAD?
In the Page Setup Manager, select a page setup and click Modify. In the Page Setup dialog box under Plot Options, click Hide Paperspace Objects.
How do I hide viewport lines?
- Switch to the layout that contains the viewport border that you do not want plotted.
- On the Object Properties toolbar, click the Layers toolbar button.
- In the Layers dialog box, click New.
- Name the new layer.
- Click the Freeze Layer icon for the new layer. …
- Click OK to close the dialog box.
31 янв. 2014 г.
What is Psltscale in AutoCAD?
When a drawing is viewed in a layout the lines are displayed relative to the viewport scaling factor. Setting the PSLTSCALE system variable allows to maintain the same linetype scaling for objects displayed at different zoom factors in a layout and in a layout viewport.
What do hidden lines represent on Multiview drawings?
would appear as hidden lines in an orthographic multiview drawing? These are the three views associated with the object you just built. 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.
Do you show hidden lines in a section view?
Section views do not include hidden lines. Any material cut when a section view is defined is hatched using section lines.
Which type of lines are used to represent hidden edges?
Figure 5: Use of dashed lines to represent edges hidden in views of a complicated object.
What are the 7 types of lines?
- Points, Lines and Angles.
- Horizontal Lines.
- Vertical Lines.
- Parallel Lines.
- Perpendicular Lines.
- Some Other types of Lines in Maths.
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. … An extension line extends a line on the object to the dimension line.
What is long break line?
LONG BREAK LINES: Long break lines are ruled lines with freehand zigzags that reduce the size of the drawing required to delineate an object and reduce detail.