CADTutor tutorials are all original and specifically designed to get you working with AutoCAD and other applications as knowledgeably as possible. We don't believe in providing only quick step-by-step tutorials like other sites. Our tutorials are comprehensive and aim to give you a deeper understanding and a better learning experience. See the AutoCAD tutorials page for more information.
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AutoCAD to PhotoshopThis tutorial demonstrates a number of workflows from quick and simple to high quality. |
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AutoCAD 2010: Ribbon BasicsThis video tutorial introduces you to the AutoCAD 2010 ribbon and demonstrates the various options you have when working with it. Running time: 5min 49sec |
CamerasCameras are the main viewing tools in 3D visualisation. This tutorial demonstartes how to create and control cameras. |
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AutoCAD 2010: Starting a CommandThis video tutorial demonstrates some of the methods for starting a command in AutoCAD. Running time: 2min 42sec |
AutoCAD 2010: Ribbon BasicsThis video tutorial introduces you to the AutoCAD 2010 ribbon and demonstrates the various options you have when working with it. Running time: 5min 49sec |
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AutoCAD 2010: The User Interface - Part 1This video tutorial takes you on a guided tour of the AutoCAD 2010 user interface. This is the best place to start for beginners. Running time: 3min 56sec |
AutoCAD 2010: Getting Ready for 3DThis video tutorial describes how to prepare the AutoCAD 2010 user interface (UI) ready for a 3D drawing project. Running time: 2min 23sec |
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Coordinate | Interpretation |
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25,75 | depends on context |
@25,75 | relative |
#25,75 | absolute |
It used to be very simple. Enter a coordinate and AutoCAD interpreted it as an absolute coordinate. Enter a coordinate preceded by "@" (the at sign) and AutoCAD interpreted it as a relative coordinate. This simple rule changed when dynamic input was introduced and now the interpretation of coordinates is contextual. For example, when you draw a rectangle using RECTANG, the coordinate for the second point is interpreted as absolute with dynamic input turned off and as relative with dynamic input turned on. Really, try it and see.
Fortunately, there's a new coordinate prefix that forces an absolute coordinate, even when AutoCAD decides you want a relative one. Precede any coordinate with "#" (the hash sign) to force an absolute coordinate.
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AutoCAD 2010: The User Interface - Part 3
This video tutorial completes your guided tour of the AutoCAD 2010 user interface. Running time: 4min 04sec