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Locking angles with the Ortho and Polar modes

From: AutoCAD 2011 Essential Training

Video: Locking angles with the Ortho and Polar modes

The purpose of drafting is to create and reproduce accurate geometry. In this lesson we are going to learn how to use the Line command to create geometrically accurate line work. Before we get started, take a look at my Status bar. Notice all of these toggles are turned off with the exception of grid. Grid is still turned on. If you are going to work along with me, make sure your Mode settings match mine. Now that we have done our housekeeping, let's launch the Line command and I will pick a point on screen and let's say I would like to create a square that measures 5?5.As I move my cursor, it would be nice if I had more control over the angle in which I was pulling my line.

Locking angles with the Ortho and Polar modes

The purpose of drafting is to create and reproduce accurate geometry. In this lesson we are going to learn how to use the Line command to create geometrically accurate line work. Before we get started, take a look at my Status bar. Notice all of these toggles are turned off with the exception of grid. Grid is still turned on. If you are going to work along with me, make sure your Mode settings match mine. Now that we have done our housekeeping, let's launch the Line command and I will pick a point on screen and let's say I would like to create a square that measures 5?5.As I move my cursor, it would be nice if I had more control over the angle in which I was pulling my line.

To get more control, I am going to use a Mode setting. I am going to come right down here and I will click on this toggle, the fourth one form the left side. This represents Ortho Mode, and when Ortho was turned on, my cursor was locked to 90 degree increments. This means I can pull to the right, type a distance of 5 and hit Enter. I can then pull down and type 5 and hit Enter. Pull to the left 5 units and then can right-click and select Close to finish my square. So the Ortho Mode locks the cursor to 90 degree increments, and it's important to note that we can turn Ortho on and off even if we are in the middle of a command.

Note what we know now, when we pan the drawing over. let's see if we can recreate this geometry. I will re-launch the Line command, I will pick a point right here, pull to the left and type 10 and hit Enter. I will pull up a distance of 10 and then I will hit Enter. We will come over 4 units, we will come down 6 units, we will come over 6 units and then I will right click and select Close to close the shape. As you can see we can draft very quick and accurate using Ortho. Let me mention this, once you turn Ortho on, it will remain on until you come down and turn it off.

Another way to toggle your Ortho Mode is by pressing the F8 key. I am going to press F8 to turn Ortho off. Let's pan the drawing over a little more so we have some room to work and we will talk about another Mode setting. I will launch the Line command again and I will pick a point on screen. Now Ortho works nice, as long as I need to draw to 90 degree increments, but what if I want to use angle smaller than 90 degree? In that case I am going to use this setting, the fifth one from the left side. I am going to click to turn this on, this guy is Polar Tracking, and as I move my cursor now, notice that AutoCAD is snapping to 90 degree increments.

So I can easily draw by snapping to these 90s, I can still draw to other awkward angles if I like, but if I want them 90 degrees, I can easily snap to it. I am going to hit Esc to cancel out of this command, and right now Polar Tracking doesn't appear to be much better than Ortho, because it's using the same 90 degree increments. Watch this, if I right-click on the Polar Tracking icon, I can select a new angle from this menu. Notice that 90 happens to be the default. I am gouging to select 45, I will launch the Line command and I will start my line segment.

Notice that AutoCAD is now snapping to every 45? angle. That means if I wanted to create a diamond that measured 5?5, I could pull to the upper right here, type 5 and hit Enter, I can then pull down to the right 5 units, we will go down to the left 5 units, and then I will right-click and select Close to close my shape. To turn Polar Tracking back off, I can come down and click the toggle in the Status bar or I can press the F10 key to turn it off. Take a look at this, I am going to move down and turn on my Ortho Mode, and then I am going to come over and try and turn on Polar Tracking.

When I do, notice that Ortho is automatically turned off. Let me try and turn Ortho on again, when I do, Polar Tracking is turned off. Ortho and Polar are an either or proposition, you can't have them both running at the same time. I am going to turn them both off, then I am going to pan my drawing over and knowing what we now, let's see if we can recreate this geometry. I will re-launch the line command, I am going to pick a point right about here and since this geometry incorporate some 45? angles, and I am going to use Polar Tracking. So I will come down here and turn this on.

I will then pull to the left 6 units, pull up 2 units and hit Enter, we will go over here on the 45 and I will enter 4 units, come up 2. The only thing you really have to be careful of when using Polar Tracking is that you are snapping to that angle, you are not actually locking to it. So if you are not paying attention, if you are over here a little bit, and type 4 and hit Enter, that segment is incorrect, because it wasn't drawn when you were snapped to the angle. No problem, I will right-click and select Undo to back up a segment. Let's snap to the 45, and I will type 4 and hit Enter, I will move up 2 units, Enter, I will go to the right 6 units, and finally I will right-click and select Close to close the shape.

As you can see, when combining the Line command with the Ortho and Polar modes, we can quickly create accurate geometry on our screen.

Show transcript

This video is part of

Image for AutoCAD 2011 Essential Training
AutoCAD 2011 Essential Training

100 video lessons · 20417 viewers

Jeff Bartels
Author

 
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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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