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Using temporary tracking to find points in space

From: AutoCAD 2011 Essential Training

Video: Using temporary tracking to find points in space

Sometimes it's hard to find locations in space without first creating some sketch lines. This usually means going back and erasing the unnecessary line work when we're finished. In this lesson, we're going to learn how to place geometry without the aid of sketch lines. On my screen, I have a pair of speakers and I would like to take the dimension circle that we see on this finished speaker and recreate them on the unfinished speaker. I'm going to zoom in a little bit, we'll center this top portion on screen and I would like to create this small circle first.

Using temporary tracking to find points in space

Sometimes it's hard to find locations in space without first creating some sketch lines. This usually means going back and erasing the unnecessary line work when we're finished. In this lesson, we're going to learn how to place geometry without the aid of sketch lines. On my screen, I have a pair of speakers and I would like to take the dimension circle that we see on this finished speaker and recreate them on the unfinished speaker. I'm going to zoom in a little bit, we'll center this top portion on screen and I would like to create this small circle first.

I can see it has a radius of 0.4 and I can also see that its center point measures 2.75 units over and 3.83 units down from this upper-left corner. Now, I could find that center point using sketch geometry. I could come over and launch my Line command, I could start my line from the endpoint of this line and I could lock my Ortho. I could pull over a distance of 2.75, Enter. I could pull down 3.83, Enter.

I'll hit Escape and the center of my circle is located at the endpoint of this line. Now, there's nothing wrong with this method, except that I have to come back later and erase these segments. Let me click to select these and I'll press my Delete key to erase them and let's find the center of this circle without having to use sketch lines. In fact, I'm going to come down and turn off my Ortho Mode as well. To place the circle, I'm going to launch my Circle command and now AutoCAD's asking me for the center point location.

I don't know what that is, but I do know how to get to that location. So, I'm going to type tk and hit Enter. tk stands for temporary tracking. Notice AutoCAD automatically turned my Ortho on and from this point. I can now guide AutoCAD to the place where I want to create my circle. My first tracking point is going to be the endpoint of this line and then I will pull to the right a distance of 2.75, Enter. I will then pull down a distance of 3.83, Enter and now that I'm at my desired location, I'll hit Enter to accept it and this circle has a radius of 0.4, Enter.

Next, I'm going to create the larger circle, I'll hit my Spacebar to go back into the Circle command and I have a running Object Snap set for center point. So, I'm going to click this circle to start the new one at its center and this circle has a radius of 1.4, Enter. Let's pan this up and we'll take a look at the circles on the lower half. In this case, the circle that I'll be creating on the bottom, has a center point that measures 6.5 units down from the center of the upper circle.

No problem, I can find this point using temporary tracking. I'll move up and launch the Circle command and where's my center point? I'm not sure but I do know how to get there. So, I'll type tk, Enter. AutoCAD automatically turns my Ortho on. my first tracking point will be the center of this circle. I will then pull down 6.5 units and hit Enter. Now that I'm at my desired location, I'll hit Enter to accept it. Notice as a curtsy, AutoCAD has turned off the Ortho.

Let's create the smaller circle first. This guy has a radius of 0.8 and I'll hit Enter. Finally, we'll create the larger circle, I'll do that by pressing my Spacebar to go back into the command, I'll create this circle from the center of this one and this circle has a radius of 3. Using temporary tracking, we can easily place geometry in our drawing without the need for extra, unnecessary line work.

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This video is part of

Image for AutoCAD 2011 Essential Training
AutoCAD 2011 Essential Training

100 video lessons · 20289 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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