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Print length. See all details. Next page. Learn these AutoCAD and AutoCAD LT essentials—and more: Basic 2D drawing skills Editing entities and working with splines and polylines Using layers and objects Organizing objects with groups and blocks Using hatch patterns and gradients Working with blocks and cross-references Editing and importing data Modeling in 3D and presenting the design This striking Essentials book features: Chapter-opening learning objectives Step-by-step tutorials Four-color screenshots and illustrations Margin tips to speed your work Downloadable exercise files.
About the Author Scott Onstott is a consultant, lecturer, author, and independent video producer with 16 years of experience teaching and writing about design and visualization software. Read more. Don’t have a Kindle?
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Tip: Pressing the space bar or Figure 2. Notice that now Start, Center, End is the top button on the Arc flyout. When you are using a flyout, the last item you clicked appears as the top flyout button, so options you use frequently take only one click. If the start point were located where the endpoint is, a convex arc outside the centerlines would have been drawn. When you have added the arc correctly, your arc should look like that in the lower part of Figure 2.
On your own, try drawing another arc with the Arc Start, Center, End option, this time clicking point 6 first, then the center, and then point 4. Note that this arc is drawn counterclockwise, resulting in a convex arc. Undo this backward arc by typing U [Enter] at the command prompt. Next, draw an arc with the Start, End, Angle option, referring to Figure 2. This time you will use dynamic entry. Positive angular values are measured counterclockwise.
Negative angular values are measured clockwise. Type d for the degree symbol when typing in surveyor angles. Use the single quote and double quote for minutes and Chord length seconds. The chord length is the straight- line distance from the start point of the arc to the endpoint of the arc. Start point You can enter negative values for the chord length to draw an arc in the opposite direction.
The locations of the start and end points are at 11 and Click: Start, End, Radius button from the Arc flyout 12 11 Specify start point of arc or [Center]: select point 11 New arc Specify end point of arc: select point 12 Specify radius of arc: New arc 14 13 Figure 2.
You will give it a try off to the side of the subdivision drawing and then erase or undo it, as it is not a part of the drawing. To draw an arc that is the continuation of an existing line, Click: Line button On your own, draw a line anywhere on your screen. Last endpoint drawn. Continue makes this the start point for Click: Continue from the Draw panel, Arc flyout the new arc The last point of the line becomes the first point for the arc. The cursor Last arc drawn is in drag mode, and an arc appears from the end of the line.
You are prompted for an endpoint. Then you Continue makes the last point the start of the new arc will continue an arc from the endpoint of that arc. On your own, erase or undo the extra continued arcs and lines that you created.
Using Arc at the Command Line Tip: After you draw an arc, restarting the command and To select the Arc command, you can also type the command alias, A, then pressing the space bar at the command prompt.
When you start the Arc command this way, or [Enter] also engages the the default is the 3 Points option you used earlier. If you want to use Continue option. You can use another option, you can type the command option letter at the prompt. You will then specify from the previously drawn arc the start, end, and angle of the arc by typing the command option at the or line. Command: A [Enter] The command Arc is echoed at the command prompt, followed by Tip: You can click on the Specify start point of arc or [Center]: click point 13 command option from the list instead of typing the letter.
However, it may be hard to see because of the small size of the arc relative to the size of the screen and drawing. Using Zoom The Zoom commands change the size of the image on your display. The Zoom flyout is on the ribbon View tab, Navigate panel Figure 2. Right-click in the gray space at the left of the View tab Click: Show panels from the context menu, Click Navigate The Navigate panel now appears on the ribbon View tab Figure 2. Navigate Panel Figure 2. Click: Zoom In button Your drawing is enlarged to twice its previous size Figure 2.
Click: Zoom Out button Your drawing should return to its original size on the screen. Zooming Using Scale Factors You can also use scale factors to zoom when you click the Scale option of the Zoom command.
Scale factor 1. Scale factor 0. Typing X after the scale factor makes the zoom scale relative to the previous view. For example, entering 2X causes the new view to be shown twice as big as the view established previously, as you saw when using Zoom In. A scale factor of 0. Zoom Scale uses the current left corner or 0,0 coordinates as the base location for the zoom. Typing XP after the scale factor makes the new zoom scale relative to paper space. You will learn more about paper space in Tutorial 5.
You will select the Zoom command by typing its alias at the command prompt. Repeat the Zoom command. The area shown on the screen is twice as big as the drawing limits.
Now, restore the original view. This lets you quickly enlarge the exact portion of the drawing that you are interested in. You will select this command using the Zoom flyout. Note that the Zoom command has an apostrophe in front of it at the command prompt to show that the com- mand is transparent.
This means that you can select it during execution of another command. You will zoom in on the area shown in Figure 2. Click: Zoom Previous button Your drawing is returned to its original size. Areas can be repeat- edly zoomed, that is, you can zoom in on a zoomed area; in fact, you can continue to zoom until the portion shown on the display is ten trillion times the size of the original.
Zoom Realtime An easy way to zoom your drawing to the desired size is to use the Zoom Realtime feature on the Standard toolbar. Click: Zoom Realtime button Select an arbitrary point in the middle of your drawing and hold down the click button of your pointing device while dragging the cursor up and down. When you move the cursor upward, you zoom in closer to the drawing; when you move the cursor downward, you zoom out farther from the drawing.
Scrolling the middle mouse wheel, acts similar to Zoom Realtime. It is quick to use this method at any time during commands. CAD Shop. RSS – files. Over 1. New AutoCAD commands and variables. New Map coords converter.
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