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AutoCAD 2011 Essential Training
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Creating an ellipse


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AutoCAD 2011 Essential Training

with Jeff Bartels

Video: Creating an ellipse

Back in the paper and pencil days, creating an Ellipse required the use of a plastic template. Today using AutoCAD's Ellipse command, we can create any size ellipse we like, and it's as easy as creating a circle. On my screen I have a diagram of an ellipse and generally speaking an ellipse is nothing more than a circle with two diameters. There is a horizontal diameter. This is called the Major Axis and there's a vertical diameter called the Minor Axis. Note that if we are looking at these distances as measured from the center point, they are called the major and minor radius.
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  1. 2m 8s
    1. Welcome
      1m 29s
    2. Using the exercise files
      39s
  2. 23m 33s
    1. Understanding model space
      3m 44s
    2. Accessing AutoCAD's tools
      3m 2s
    3. Leveraging dockable palettes
      3m 1s
    4. Monitoring the Status bar
      1m 28s
    5. Understanding the anatomy of a command
      2m 14s
    6. Customizing AutoCAD's preferences
      3m 13s
    7. Accessing help
      3m 38s
    8. Saving a workspace
      3m 13s
  3. 19m 42s
    1. Opening an AutoCAD drawing
      3m 2s
    2. Understanding mouse functions
      2m 44s
    3. Zooming, panning, and regenning
      4m 24s
    4. Working in a multiple-document environment
      2m 39s
    5. Saving your work
      2m 29s
    6. Saving time with templates
      4m 24s
  4. 14m 35s
    1. Constructing lines
      2m 20s
    2. Locking angles with the Ortho and Polar modes
      4m 49s
    3. Drawing circles
      4m 10s
    4. Activating the Heads-Up Display
      3m 16s
  5. 14m 48s
    1. Defining a unit of measure
      6m 28s
    2. Constructing geometry using architectural measurements
      4m 6s
    3. Working with metric units
      4m 14s
  6. 23m 45s
    1. Understanding the Cartesian coordinate system
      4m 53s
    2. Locking to geometry using object snaps
      7m 42s
    3. Automating object snap selection
      7m 26s
    4. Using temporary tracking to find points in space
      3m 44s
  7. 19m 30s
    1. Drawing rectangles
      4m 56s
    2. Drawing polygons
      3m 4s
    3. Creating an ellipse
      5m 9s
    4. Organizing with hatch patterns
      6m 21s
  8. 29m 46s
    1. Making geometric changes using the property changer
      3m 38s
    2. Moving and copying elements
      4m 28s
    3. Rotating elements
      3m 48s
    4. Trimming and extending geometry
      5m 10s
    5. Creating offsets
      6m 16s
    6. Erasing elements
      2m 46s
    7. Undoing and redoing actions
      3m 40s
  9. 11m 52s
    1. Selecting objects using windows
      3m 46s
    2. Adding and removing from selections
      3m 43s
    3. Using keyboard shortcuts
      4m 23s
  10. 51m 12s
    1. Creating fillets
      3m 52s
    2. Creating chamfers
      3m 51s
    3. Copying objects into a rotated pattern
      4m 20s
    4. Copying objects into a rectangular pattern
      4m 58s
    5. Stretching elements
      4m 4s
    6. Creating mirrored copies
      2m 12s
    7. Scaling elements
      5m 0s
    8. Leveraging grips
      7m 20s
    9. Exploding elements
      5m 47s
    10. Joining elements together
      3m 44s
    11. Editing hatch patterns
      6m 4s
  11. 32m 19s
    1. Understanding layers
      2m 43s
    2. Creating and adjusting layers
      7m 20s
    3. Using layers to organize a drawing
      9m 17s
    4. Changing popular settings using the layer control
      3m 30s
    5. Understanding the BYLAYER property
      3m 37s
    6. Restoring previous layer states
      3m 42s
    7. Using existing geometry to set the current layer
      2m 10s
  12. 37m 43s
    1. Creating single-line text
      3m 11s
    2. Justifying text
      5m 18s
    3. Controlling appearance using text styles
      6m 10s
    4. Annotating with multi-line text
      5m 10s
    5. Editing text
      4m 32s
    6. Creating bulleted and numbered lists
      3m 29s
    7. Incorporating symbols
      5m 28s
    8. Correcting spelling errors
      4m 25s
  13. 28m 37s
    1. Creating general dimensions
      4m 13s
    2. Creating continuous and baseline dimensions
      2m 13s
    3. Controlling appearance using dimension styles
      4m 57s
    4. Modifying dimensions
      6m 6s
    5. Creating multileaders
      2m 53s
    6. Controlling appearance using multileader styles
      3m 23s
    7. Modifying multileaders
      4m 52s
  14. 25m 19s
    1. Inserting blocks
      4m 34s
    2. Creating blocks
      6m 41s
    3. Leveraging blocks
      5m 39s
    4. Redefining blocks
      3m 1s
    5. Building a block library
      5m 24s
  15. 13m 50s
    1. Querying a drawing using rollover tooltips
      2m 9s
    2. Taking measurements using the Distance command
      3m 2s
    3. Modifying properties using the Quick Properties tool
      4m 25s
    4. Automating calculations using the Quick Calculator feature
      4m 14s
  16. 36m 6s
    1. Creating quick plots
      6m 4s
    2. Selecting a pen table
      5m 48s
    3. Choosing line weights
      4m 32s
    4. Creating a layout, pt. 1: Choosing a paper size
      2m 42s
    5. Creating a layout, pt. 2: Inserting a title block
      2m 29s
    6. Creating a layout, pt. 3: Cutting viewports
      6m 9s
    7. Reusing layouts
      4m 3s
    8. Organizing layouts
      4m 19s
  17. 16m 49s
    1. Using the Annotative property to automatically size text
      4m 13s
    2. Using the Annotative property to automatically size dimensions
      4m 34s
    3. Using the Annotative property to automatically size multileaders
      3m 58s
    4. Changing the scale assigned to annotations
      4m 4s
  18. 6m 56s
    1. Saving drawings to other formats
      2m 27s
    2. Plotting to the Design Web format
      2m 15s
    3. Plotting to PDF
      1m 20s
    4. Sending drawings via email
      54s
  19. 22s
    1. Goodbye
      22s

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AutoCAD 2011 Essential Training
6h 48m Beginner Jul 30, 2010

Viewers: in countries Watching now:

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.

Topics include:
  • Understanding model space
  • Working in a multiple-document environment
  • Organizing drawings using layers
  • Creating basic geometry
  • Configuring units for architectural, civil, or metric work
  • Incorporating blocks (symbols) into a working file
  • Maintaining accuracy with coordinates and snaps
  • Creating annotations that automatically size themselves
  • Moving and copying elements
  • Transferring data between drawings
  • Preparing standardized layouts with title blocks
  • Sharing drawings
Subjects:
CAD 2D Drawing 3D Drawing
Software:
AutoCAD
Author:
Jeff Bartels

Creating an ellipse

Back in the paper and pencil days, creating an Ellipse required the use of a plastic template. Today using AutoCAD's Ellipse command, we can create any size ellipse we like, and it's as easy as creating a circle. On my screen I have a diagram of an ellipse and generally speaking an ellipse is nothing more than a circle with two diameters. There is a horizontal diameter. This is called the Major Axis and there's a vertical diameter called the Minor Axis. Note that if we are looking at these distances as measured from the center point, they are called the major and minor radius.

Creating an ellipse is very similar to creating a circle. Let's try it out. I am going to pan the drawing over and I will push this up a little bit, and we will try and recreate each of these shapes using AutoCAD's Ellipse tool. We will start with this one on the left. Now the Ellipse tool is located in the Draw panel of our Ribbon. The icon is right here, I am going to hover over this for just a second, because I want to show you that the Default method of creating an ellipse is the Center Method. Let's launch the command and then I will click to specify the center location of my ellipse and then I am going to lock my Ortho, I will do that by clicking the toggle down here in the Status Bar.

Then I will pull to the right and I am going to enter the Major Radius Distance. If we look at the example above, we can see the Major Axis is 24 Inches, so the radius is half of that, it must be 12. I will type 12 Inches, Enter. Don't forget to use the quote symbol, this is an architectural example. Now I will pull up or down and I will enter the Minor Radius. We can see that the Minor Axis is 14, so the Minor Radius must be 7 Inches, Enter. Alright, let's recreate this Ellipse now, except this time we will use a different Ellipse method.

I am going to move back to the icon and I am going to click this Fly-out right next to it and you can see in the Menu that there are a couple of ways to create an ellipse. This time you will look at the Axis End method. With Axis End, we will define the Major Axis and then the Minor Radius. I will click to launch the tool and then I will pick a point on screen to define the first point of my Major Axis, I am going to pull to the right and in the example above, the Major Axis is 15 Inches, so I will type 15 Inches, Enter. Finally notice where I am pulling from.

I am pulling from the center, so I am going to have to enter a radius. I can see the Minor Axis is 8 Inches, so the Minor Radius must be 4 Inches. Enter. Now that we understand how to use the Ellipse tool, let's apply it to a practical example. I am going to zoom out, and I will pan my drawing over. On my screen, I have an architectural example. This is a floor plan for a single family hall. Let's start out by zooming in on the Master Bath area and I would like to focus our attention on this counter top. So I am going to zoom in a little bit further.

I will center this on screen. I would like this counter top to have two basins. I have already created one of them and let's see if we can use the Ellipse command to create the other. First of all, I would like the basin to be centrally located within this area. To do that I am going to create some sketch geometry. I will move up and launch the Line command and I am going to create a line form the end point here to the end point down here, and then I will hit Esc. Now I would like to draw this large Ellipse first. I am going to create using the Center method and I am going to place the center at the midpoint of this line.

So let's move up the Ellipse Tool, I will click the Fly-out and I will select the Center method and I don't have a running object snap set for midpoint, so I am going to Shift + right click. I will select midpoint from the menu and then I will click this line. Now I am going to pull to the right and I am going to enter my Major Radius. In this case, that will be 10 Inches. Enter, then I will pull up, and then I will enter the Minor Radius, since the Minor Axis is 16, the Minor Radius must be 8 Inches. Enter. At this point, I don't need my sketch geometry anymore, so I will click to select it and then I will press my Delete key to erase.

Let's create the next ellipse. I will move back up and launch the command. Now I have a Running Object Snap of Center. Watch this, if I place my cursor on top of this ellipse, AutoCAD will find the center of an ellipse, just like it will find the center of a circle. So I am going to click to accept this point. I will pull to the right and I will enter my Major Radius which is 8 Inches, Enter. Then I will pull up, I will enter my Minor Radius which in this case is 6 Inches. Enter. Alright the last thing we have to draw is this drain.

This is this circle, it has a radius of 1 inch and it's center point is placed 4 Inches from the center of the basin. I am going to move up and launch my Circle command and I will place this center of the circle using Temporary Tracking. I will type TK, Enter, my first tracking point will be the center of this ellipse, and will then pull down, notice it didn't want to pull down right away. If that's the case, move your cursor closer to your Object Snap and then pull down, and it will work fine. I am going to pull this down 4 Inches, Enter, now that I am where I want to be, I will hit Enter to accept this location.

I will type a Radius of 1 Inch, and press Enter. As you can see creating an ellipse is very easy. Once you understand the concept of the Major and Minor Axis, drawing an ellipse is as simple as drawing a circle.

Find answers to the most frequently asked questions about AutoCAD 2011 Essential Training.


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Q: Despite following the tutorials, I am having trouble in AutoCAD Architecture 2011. I cannot copy basic line drawings of simple architecture from one file to another. I tile two AutoCAD documents open simultaneously and click on a geometry, let go, click again and hold and try to drag to the second document, but to no avail. What could be causing the problem?
A: There are a few possible solutions. At the command line, type "PICKFIRST" and press Enter. Make sure this variable is set to 1. If the value is set to 0 instead of 1, this would result in the problem described. Having PICKFIRST set to 1 (normally the default setting for "vanilla" AutoCAD) allows you to select an object first, and then launch an editing command (like Move or Rotate or Erase). Thus, you can work in both directions. Launch the Editing command first and then select objects, or visa versa. 
If PICKFIRST is not the issue, the problem might be something native to AutoCAD for Architecture, as there are some differences between that version and plain AutoCAD. Don't forget, you can also move geometry from one drawing to another by using Copy/Paste. Simply select your geometry and right-click, select copy, then click in your other drawing, right-click, and select Paste. Note that the Copy/Paste options are also available on the Home tab of the Ribbon. Copy/Paste should work regardless of your PICKFIRST setting.
 
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