by drawing it
Type ml in the command line.
This command is used to create single line text in drawing
There is a command line at the bottom of the screen. This is where the prompt is to type in commands.
type REFCLOSE at the command line
A polyline is a line composed of many segments: for example the rectangle is a polyline consisting of four line segments.
Line, is a basic command as a single line that can form into an object. However, this command can not be formed into three dimensions. To shape it needs to change the structure of the line to polyline
the bearing of something is the angle. for example there are 180 degrees on a straight line so the bearing of a straight line is 180 degrees. To work out the bearing of something though you need a protracter
The slope of a line is determined using the coordinates of at least 2 points on the line. If you have 2 points (A, B) and (C, D), the slope of the line can be determined using the formula (B - D) / (A - C) or (D - B) / (C - A) which is essentially the difference of the y-coordinates divided by the difference of the x - coordinates. Alternately, you could think of it as "rise over run", the increase in height (change in y) between the two points over the horizontal distance traveled (change in x).
GstarCAD's native file format is DWG, so when you open an existing Autodesk AutoCAD file (2.5 to 2010), there's no file conversion and no data loss. GstarCAD also provides a full compatibility with AutoCAD command line,menu (.mnu) and script (.scr) files, hatches, fonts, complex linetypes, multiline text, lightweight, polyline, draw commands, audit & recover as well as AutoLISP and ADS. That means you can get to work immediately by using the AutoCAD files, commands and applications you rely on.
The Line Command!
The red lines in an AutoCAD drawing indicates the error that could be geometrical or duplicate objects. Generally, every AutoCAD drawing go through several revisions, at that time the highlighted red lines are looked for edits to remove the errors with their best alternatives.
Most designers would use Autocad.