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Join Jeff Bartels as he covers the most important features of this industry-standard drafting and design application in AutoCAD 2011 Essential Training. This course begins with a tour of AutoCAD's interface and the tools used to create basic shapes. It then focuses on the methods used to modify and refine geometry while emphasizing accuracy and good habits to build a solid design foundation. The course covers using layers, line types, and colors to organize a drawing file and explains how to efficiently annotate a design and prepare it for final output. Throughout the title, Jeff shares industry techniques used in production and reinforces concepts using practical examples. Exercise files are included with the course.
Sometimes using a window isn't the most effective way to select our objects. At times like these, we can use our keyboard to select objects that are difficult to select using a rectangle. In this lesson, we're going to learn how to select objects using some keyboard shortcuts. On my screen, I've got a drawing that represents a site plan for a small commercial project. This happens to be a civil engineering example. So, in this drawing, each unit equals one foot. Now, the first keyboard shortcut I'd like to look at is All. Let's say I'd like to erase all of the geometry in this drawing.
I'll launch the Erase command and at the Select objects prompt, I'm going to type all, and hit Enter. This selects everything in my drawing. Let me mention that keyboard shortcuts work with any command that asks us to select objects. Now that I'm finished selecting my entities, I will right-click to complete the command. Alright, let's click Undo to bring the geometry back and let's make a design change. Let's say there is an ordinance that requires that the building must be 15 feet away from the parking lot.
First of all, let's find out where the building should be. I'm going to zoom in a little bit. I'll launch my Offset command. My offset distance will be 15. I'll hit Enter. The object I'd like to offset will be this line. This represents the edge of the parking lot. I'd like to offset it to this side, and I'll hit Esc. This line represents where the front edge of the building should be. Let's back up a little bit. To correct this geometry, I'm going to use the Move command. Let's launch Move.
Now, selecting my building geometry is going to be a little bit difficult, because when I create my window selection, my window is going to be so large that I'll end up grabbing quite a bit of my parking lot as well. Instead, I'm going to select this geometry using a keyboard shortcut. At the Select objects prompt here, I'm going to type wp, and hit Enter. WP stands for Window Polygon. I will then pick a point right here. I'll pick one here. I'll pick one here. I'll surround the building. I'm being very mindful of my running object snaps.
I'm going to turn those off for a second. Let me click the Toggle here on the Status Bar. Here we go! I'll click, I'll work my way around the building and take a look at the type of selection I'm making. Essentially, I'm making a window selection, but I'm not having to conform to a perfect rectangle. Now that I'm finished with my window, I'll right-click and select Enter. I've actually selected a little bit too much. I'm going to hold my Shift key and deselect this line. Then I'll right-click. Let's zoom in a little bit, and I'd like to pick this building up from the end point here.
Now, the running object snaps are turned off. That's okay. we'll do this the hard way. I'll Shift+Right-click and select Endpoint, and I'd like to place this to the Shift+Right-click Intersection right there. At this point, I don't need my sketch line anymore, so I'll click to select this, and then I'll press my Delete key. Let's back up a little bit. To finish clearing up this drawing, I need to extend my sidewalk lines such that they meet the building. To do that, I'll launch the Extend command. I'll select this edge and this edge as my boundary edges.
Then I'll right-click. Now, to select my sidewalk lines, I'm going to use another keyboard shortcut. I'm going to type F and hit Enter. F stands for fence. A fence works just like a crossing window, except I make my selection using a line segment instead of a rectangle. I'll click right here, and then I'll click here to make a line segment across the entities that I'd like to select. When I'm finished with my fence, I'll right-click and select Enter. My entities are extended, and finally, I'll hit my Esc key.
Let's back up a little bit more. We'll do one more example of the fence. Let's say I'd like to erase all of these trees. I'll launch the Erase command. Then I'll press F for fence and hit Enter. I'll click right here, and then here, and here, I'll just create a line segment that crosses over all of these entities. When I'm finished, I'll right-click and select Enter to complete the fence, and then I'll right-click again to finish the command. Now, I'd like to keep these trees, so I'm going to click Undo to restore that geometry.
As you can see, the keyboard shortcuts are a helpful alternative to the selection window, and they allow us to work outside the box when selecting our entities.
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