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The days of drafting with the pencil are over. Now that we use AutoCAD, all of our drafting is done using our mouse. And you know what, it's much easier. In this lesson, we're going to learn how our mouse button functions inside of AutoCAD. As you can see, I have a drawing open on my screen. This is a mechanical example, and this is a drawing of a motorcycle gasket. Let's start our mouse discussion by talking about the left mouse button or a left click. In AutoCAD, a left click allows us to make a selection. For example, if I left click on this circle, I just selected that circle.
If I left click on this entity, that entity is also selected. This is considered a single pick type of selection. I'm going to press my Esc key to deselect these entities, and now let's take a look at a window selection. We would use a window to select multiple objects. If I left click out in space and I move my cursor to the right, I begin creating this blue rectangle. This is called a window selection. When I click again to finish the window, AutoCAD will select any object that fell completely within the window.
As you can see, it selected these three circles. Once again, I'll press my Esc key to deselect these. This time I'll place my cursor over here, I'll left click, and if I move my cursor to the left, I begin creating this green rectangle. Now, there's no real rocket science to this. If you left click on screen and pull to the right, you get the blue rectangle, you pull to the left, you get the green one. This green rectangle is called a Crossing Window. When I click again to finish this window, AutoCAD will select everything that falls completely within the window or crosses over the edge.
Note all of the objects that were selected. Let's deselect these. So the left mouse button is used to make selections. Now, let's talk about the right mouse button or a right click. In AutoCAD, if you right click you'll bring up a context sensitive menu. I say context sensitive because the menu will change depending on when and where you right click. For instance, if I right click in the middle of the screen, AutoCAD brings up a menu that has some general purposes tools. If I right click over a tool in the Ribbon, I can see a menu with some tools that are related to my Ribbon.
If I right click over a Layout tab, I have tools here that are specific to Layout tabs. I'm going to hit Esc to close this menu, and let's mix it up a little bit. I'm going to left click to select this circle, and then I'll right click to bring up a menu. Notice this menu contains some Modification Tools. So when we're working in AutoCAD, a right click will bring up a menu. I'm going to click my Esc button a couple of times to clear these items off my screen. Soon the left and right click functionality of your mouse will become second nature, and you'll wonder how it was possible to draft in the old days using a traditional pencil.
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