These techniques apply to basic CAD programs such as AutoCAD, IntelliCAD, etc. If you have a civil/survey program or add-on, such as Land Desktop, SurvCADD, Eagle Point, etc., then there are built-in tools for entering lines and curves.
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Although AutoCAD has a number of commands for creating special 3D objects, a lot can be achieved by changing the properties of basic 2D objects like polylines. This tutorial provides a basic introduction to creating and viewing 3D objects.
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Edges exist where one surface meets another. Usually an edge is a surface edge detail such as pavers, a retaining wall or stepped features such as steps or terracing. This tutorial explores ways of working with them to create 3D elements.
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In this final stage of the project, views created with the Quickscape View Manager are rendered using Supersampling for best quality.
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This tutorial describes how to create a 3D surface model from contour information using AutoCAD and Key TERRA-FIRMA.
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Transforming objects means changing the position, size or number of an object without altering the integrity of the geometry itself. MAX offers a host of transformation tools to do these tasks. This tutorial gets you started.
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The first and perhaps most crucial stage in creating a 3D landscape scene is the creation of accurate and seamless surfaces. This tutorial explores a number (not all) of techniques for creating quick and accurate surfaces from 2D lines and should give the user a feel for the range of tools available.
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Getting to grips with AutoCAD's basic drawing tools. This is an ideal start for the AutoCAD beginner.
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This tutorial shows how to create an animated walkthrough of your AutoCAD 3D model using 3DS MAX 5. All you need to start is an AutoCAD drawing with some 3D content. The end result will be a .AVI file which can be viewed on any Windows PC.
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This tutorial introduces the AutoCAD extrusion tools, Extrude and Press/Pull. A good understanding of both tools is important for developing 3D modeling skills. Running time: 9min 53sec
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This tutorial introduces the ViewCube and describes how it can be used for effectively navigating your 3D drawings. Running time: 6min 13sec