In this video you will learn how to change the projection type from parallel to perspective and back again. You will also learn how to change the viewpoint using preset views, the ViewCube, and the navigation bar.
AutoCAD answers the challenge of working with 3D models on a 2D screen by providing a variety of tools to change your point of view and the ability to see all sides of an object simultaneously in multiple viewports. In this chapter you will learn how to change the way objects are displayed with visual styles and how to present designs in perspective.
Navigating in 3D
In this video you will learn how to change the projection type from parallel to perspective and back again. You will also learn how to change the viewpoint using preset views, the ViewCube, and the navigation bar.
To represent 3D surfaces on a 2D screen, you need visual cues to determine which surfaces obscure other surfaces in the dimension of depth. This lesson looks at visual styles in AutoCAD, which allow you to display geometry in a variety of different ways.
Tiled model space viewports allow you to view all sides of objects at once. In this lesson you will learn how to select different visual styles in each viewport and how to maximize and minimize tiled viewports.
In human vision and in graphical perspective, objects in the distance diminish in size according to the distance they are away from you, the viewer. In this video you will learn how to compose perspective views using cameras, how to move through them with Steering Wheels, and how to save compelling points of view with named views.
In this chapter you will learn about tools and coordinate systems that can help you specify and transform objects in three dimensions. From the world coordinate system, to user coordinate systems both static and dynamic, to point filters, elevations, and 3D transformation gizmos, you will understand how to manipulate objects in 3D space.
Drawing in 3D
Wherever practical it is helpful to bring the familiar 2D drawing plane into 3D space. This can be easily done by changing the elevation of the drawing plane above the ground plane, as this video demonstrates.
AutoCAD has three different coordinate systems to help you locate objects in 3D space. In this lesson you will learn how to input 3D Cartesian, Cylindrical, and Spherical coordinates and how to save time by using the input device to specify two of the three required coordinates using point filters.
In this lesson you will learn how to move and reorient the user coordinate system, also known as the UCS. You will also learn how switch to the plan view of any UCS and how to return to the world coordinate system (or WCS).
AutoCAD gizmos allow you to move, rotate, and scale objects in 3D using special interactive controls. In this lesson you will learn how to select and transform subobjects using gizmos.
In this chapter you will model a classical Ionic column and in the process meet various challenges that its complex geometry presents. You will use solid and surface toolsets to accomplish the goal of creating a complete 3D model.
Modeling an Ionic Column
In this video you will load and use a specialized Lisp program to create an Archimedean spiral that mimics the shape of the scrolls at the top of the column's capital.
In this lesson you will learn how to combine forms using different layers and the Join command. You will then loft cross-sectional closed 2D shapes to create the 3D volute form.
In this lesson you will extrude the abacus (the part at the very top of the column) and sweep a profile to act as a transition between the abacus itself and the volutes.
Here you will trace lines on the sketch to indicate places where you want to draw circles in 3D. Then you will draw profile shapes and revolve them to create surfaces.
In this lesson you'll revolve an ellipse arc and sculpt a NURBS surface to model fine details. You will also create a polar array to complete the column capital.
In this video you will extrude the column shaft using a slight taper angle. You will then combine a cylinder and sphere to model a flute, rotate it to slightly compensate for the column's taper angle, array it around the circumference of the column, and then subtract all the resulting flutes from the solid column shaft.
In this lesson you will sketch the cross-section of the base, joins its parts together, and then revolve it around a full circle to create the base surface.
In this chapter you will project 2D plan, elevation, section, and detail drawings from a 3D model, adjust the drawings' properties, and add associative dimensions in a layout.
Documenting 3D Models
In this video you will make a base drawing and then create orthogonal projections from it. In addition you will create a larger-scale detail drawing from one of the projections.
In this lesson you will adjust the way projected drawings appear and change their scales. You will see how a change made to the original 3D model propagates through the base and projected 2D drawings.
You will learn how to create dimensions on 2D projections of a 3D model in this video. You will also use the annotation monitor to see when associations are broken.
In this chapter you will put your designs in motion to create dynamic presentations. You will also assign materials, create light sources, and render a realistic image of a 3D model interior.
Creating Dynamic Slideshows, Animations, and Renderings
You will create cinematic views in this video that allow you to create animated slideshows. You'll use ShowMotion to present a series of cinematic views onscreen.
In this video you will learn how to select materials from the Autodesk library and assign them to objects and layers. In addition you will see how you can make adjustments to the standard materials to suit your specific needs.
AutoCAD lets you not just simulate sunlight, but even configure the angle of the sun by selecting the date, time, and specific site location on Earth. In this video you'll see how to turn on the sun, set the location using Google Earth, and then set the day and time.
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