In the latter case for example you can change the colour of all the entities on the axes layer by setting the colour (red for example) for the layer axes. Each entity can have its own attributes or have its attributes defined by the layer it is placed on. Layers can have their own attributes also (colour, line width, line style etc.). you might want to put all axes in a drawing on a layer named axes. Typically entities with a common function or common attributes are put on the same layer. Every entity in a drawing is on exactly one layer and a layer can contain lots of entities. Layers A basic concept in computer aided drafting is the use of layers to organize a drawing. More complex and CAD specific entities include polylines, texts, dimensioning, hatches and splines. Typical entities which are supported by most CAD systems are: points, lines and circular and elliptical arcs. Jasleen Kaurģ Contents 1 Basics of CAD 2 2 Introduction to LibreCAD 4 3 Preparing for Drawing 8 4 Using Command Line 12 5 Play with LibreCAD 14 6 Lets Draw Something Lets Create a Yard Jasleen Kaur: Quick Start Guide to LibreCAD 1Ĥ 1 Basics of CAD Entities Entities are graphical objects in a CAD system. You need to keep patience while reading and enjoy the tutorial. This tutorial will make you familiar with many CAD concepts and it will also tell you how to use various functions and commands in LibreCAD. If you have no experience of CAD before, then its a right place to start. 1 Quick Start Guide to LibreCAD Jasleen Kaur Blog: January 6, 2014Ģ Abstract This Quick Start Guide will help to introduce you with LibreCAD.
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