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Google SketchUp Pro: Tools and Techniques
Illustration by Richard Downs

Creating a dynamic picket fence: Making fence posts multiply


From:

Google SketchUp Pro: Tools and Techniques

with George Maestri

Video: Creating a dynamic picket fence: Making fence posts multiply

Now that we have our pickets multiplying as we scale our fence, we can do the same for the fence posts. Now I am going to go ahead and turn this around and take a look at this. We have two types of fence posts. We have the ones that are going to automatically fill in but we also have an EndPost that has to be at the end of the line. So let's go ahead and first of all figure that one out. So I am going to go into Component Attributes to make sure I have my Fencing component selected. Then I am going to go to my EndPost.
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  1. 3m 33s
    1. Welcome
      1m 4s
    2. Using the exercise files
      24s
    3. Important Mac and PC differences
      2m 5s
  2. 9m 41s
    1. The Component Options window
      3m 32s
    2. Using the Interact tool
      1m 54s
    3. Using metadata in the Component Options window
      4m 15s
  3. 1h 6m
    1. Using the Component Attributes window
      4m 46s
    2. Exposing component attributes
      6m 0s
    3. Creating a drop-down list
      8m 42s
    4. Creating dynamic materials
      8m 29s
    5. Creating a dynamic picket fence
      2m 10s
    6. Creating a dynamic picket fence: Assembling the components
      4m 54s
    7. Creating a dynamic picket fence: Making pickets multiply
      6m 11s
    8. Creating a dynamic picket fence: Making fence posts multiply
      4m 0s
    9. Creating a dynamic picket fence: Customizing attributes
      8m 18s
    10. Adding interactivity: Motion
      5m 25s
    11. Adding interactivity: Rotation
      4m 10s
    12. Adding interactivity: Changing colors
      3m 45s
  4. 39m 37s
    1. The LayOut interface
      2m 56s
    2. Drawing lines and arcs
      4m 33s
    3. Drawing rectangles
      2m 22s
    4. Drawing circles and polygons
      2m 31s
    5. Modifying line styles and color
      3m 2s
    6. Working with text
      3m 0s
    7. Inserting SketchUp models
      4m 33s
    8. Manipulating SketchUp models
      3m 30s
    9. Working with dimensions
      2m 17s
    10. Arranging and grouping objects
      3m 5s
    11. Creating scrapbooks
      3m 11s
    12. Creating presentations
      2m 40s
    13. Exporting and printing
      1m 57s
  5. 6m 40s
    1. The Style Builder interface
      2m 5s
    2. Working with strokes
      4m 35s
  6. 19m 15s
    1. Importing objects from AutoCAD
      6m 37s
    2. Importing other 3D objects
      3m 14s
    3. Exporting objects
      4m 38s
    4. Exporting objects for rendering
      4m 46s
  7. 19s
    1. Goodbye
      19s

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Google SketchUp Pro: Tools and Techniques
2h 25m Intermediate Jan 15, 2010

Viewers: in countries Watching now:

Google SketchUp Pro: Tools and Techniques shows professional users of Google's popular 3D modeling software how to create compelling 3D graphics. Author George Maestri focuses on the features available in Pro that make SketchUp a valuable design tool. He demonstrates the new Dynamic Components and shows how using them can add interactivity to a model. He teaches how to create custom Dynamic Components from models, which is a feature unique to Pro. He also explores SketchUp Pro's companion application, LayOut, a presentation tool that retains the editability of models even when they're embedded in documents. Last but not least, George shows how to export and import objects to and from other programs, such as AutoCAD and 3ds Max. Exercise files accompany this course.

Topics include:
  • Making custom Dynamic Components
  • Drawing with Layout
  • Editing textures outside of SketchUp
  • Creating and managing styles with the Style Builder
  • Exporting objects for rendering
  • Creating scrapbooks and presentations
  • Exporting model attributes to reports
Subjects:
Architecture Previsualization CAD 3D Drawing
Software:
SketchUp
Author:
George Maestri

Creating a dynamic picket fence: Making fence posts multiply

Now that we have our pickets multiplying as we scale our fence, we can do the same for the fence posts. Now I am going to go ahead and turn this around and take a look at this. We have two types of fence posts. We have the ones that are going to automatically fill in but we also have an EndPost that has to be at the end of the line. So let's go ahead and first of all figure that one out. So I am going to go into Component Attributes to make sure I have my Fencing component selected. Then I am going to go to my EndPost.

Now what I need to do is make sure that this is at the end of this. So basically I want this post to be at the end of the line here. Now the best way to do that is to figure out how long one of these individual components is. So probably the best thing to do is to put it at the end of one of these rails, such as the Top or the Bottom Rail. So let's go ahead and open up the Top Rail here and see what value changes. We can see here that as we scale this, the length in X is what's changing.

So we can use that to determine the position of the EndPost. So in order to do this, I am going to go ahead and go into the X position of the EndPost, type equals and then click on the TopRail length X. So now the position is equal to the length of the TopRail. So if I hit Enter, you could see now that the EndPost pretty much fits itself to the end of that rail. But we have a little bit of a problem here is that it's actually aligning the outer edge of this.

So what we need to do is subtract out the width of that post. So we need to go in here. It's the length of X minus and I know that this post is 4 inches, so -4. Now this will always be at the end of that rail, no matter what. So we always have that end of that rail aligned to that EndPost. Now we still have another issue that we can work with here and that is as I scale it out a little lot more, you notice here that we are going to have a point where we're going to need more fence posts in the middle.

So let's go ahead and do that. So I am going to do this almost exactly the same as I did with the picket. So I am going to go ahead and select post, and then I'm going to go ahead and add in an attribute for Copies as well as a custom attribute called Spacing. So we're just going to type that in. So now I have two attributes here, Copies and Spacing. Then I am going to go ahead and create a formula for the Copies, but what's really cool is I already have that formula here. I've got them already set up for picket.

So I can just go into the Copies attribute here, copy it. Now my spacing here, notice how when I hit Enter I get a red mark here. That's because my spacing has been determined. I don't have a number typed in here. So let's go ahead and just type in say 72 inches. So we will make those posts 6 feet apart, and so now I have 0 Copies. But we still have the same problem that we had with the pickets which is that the copy hasn't moved. So this copy that's sitting here actually needs to move out depending upon the spacing.

So we can do that again just by copying this equation here and pasting it into position X. Again that's Copy, which is the copy number of the post, times the Spacing. So again it's not copies, but copy. So it's 0+Copy*Spacing. So now I get that other post in there. If I zoom out here, we can scale this. You can see now I'm getting posts that fill in. So as we can see we have the behavior of the fence pretty much set up.

Now the next thing we can do is add in some additional controls to make it even more customizable.

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