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Select objects, press copy and specify a base point (in a similar fasion as with the move tool)
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When using an absolute angle: Specify the base point and then specify the rotation angle. You can rotate objects with an absolute or relative angle. Moving an object can either be done with the aid of object snap, or by using relative coordinates. So if you input coordinates, the base point is the point where the coordinates relate to. The base point is essentially the point where you 'grab' the objects. Select the objects and specify the base point. To extend: Click the Extend command optionally select the object you want to extend to select the line(s) you want to extend. Extending a object works in the same way as trimming. For example a line can be exactly fitted between objects. With the extend option you can shorten or lengthen objects to meet the edges of other objects. Every line that is crossed by the line you draw, will be selected and trimmed. This allows you to quickly select the lines you want to trim, by drawing a line across them. You might want to take a look at the fence (fe) selection option. To trim multiple objects at once you can drag a selection window. To trim an object: Type tr in the command line optionally select the line(s) you want to trim (otherwise all objects are used, which is fine in most cases) select the objects to trim. Objects can exactly be fitted between these objects. With the trim option objects can be shortened or lengthened with the edges of other objects. To offset: First select the offset distance select the original object specify on which side you want to offset. This option can be useful to make closed steel profiles. If this object is a Polyline or a Circle, the duplicate shape will be transformed inwards or outwards. As the name sugestes, modify tools are used to modify existing lines and objects.ĪutoCAD has a whole range of modify tools this chapter will explain the most commonly used.Ĭreate a duplicate object parallel with the original object. While working with AutoCAD, you'll quickly run into situations that requere you to use modify tools.