the SketchUp Version 5Student Workbook phần 4 ppsx

Intersect and Follow Me

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25. When using Follow Me on a group, you need to

pre-select the path. So, select the top face or select its

edges.

26. Activate Follow Me. The section to drive is within

the group, so right-click the section and select Edit

Group.

27. Select the face.

Within the group, the section is driven around the

top.

28. Right-click outside the group and select Close

Group. The top looks like it did before . . .

. . . but if you look inside, you’ll see that the vertical

walls of the room remain unchanged, though you can

see the outline of the group.

29. If you pre-select the path, the path does not have to

touch the section. As an example, we’ll create a moat

around the building (a very useful thing no doubt).

Create a rectangular section with an arc cutout.

30. Use the bottom face for the path. If you select this

face (as opposed to the edges), be sure to first heal it

into one face.

the SketchUp Workbook Version 5

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31. Select the moat section. It remains the same distance

from the path, all the way around. However, the

intersections between the straight and curved

portions are not clean.

32. To find out why, undo the last action. Use Offset on

the bottom face to create the surrounding edges. Stop

at the moat section’s far endpoint.

Here’s the problem - the intersections here are not

clean either.

33. Extend the lines to meet the arc segments, and heal

the face.

34. Now use the edges of this face for the moat section.

Much better.

Follow Me with Components

The previous exercise showed how you can avoid

“stickiness” with Follow Me by using groups. You can

also use components for the same effect, with the

advantage that you can reuse sections repeatedly. A good

example is the use of moldings.

1. Start with a box and remove the floor, so that you can

see the moldings.

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2. Draw a molding section on the outside of the box.

3. Use Follow Me on this section along the top of the

box. This cuts material from the top of the box, but

doesn’t create a molding inside the box.

4. Undo, and select the molding face. Make it a

component by using the icon or selecting Edit /

Make Component. (Or right-click on the section

and select Make Component.) Assign a name and

be sure that Replaced selected is checked.

The section now has a bounding box, like it would as

a group.

5. If the Component Browser is not open, select

Window / Components. Click the In Model icon.

In Model contains the molding section you just

created.

6. To drive this component around the top of the box,

first select the top face or the four top edges. Then

activate Follow Me. Right-click on the component

and select Edit Component. Select the molding face

and it proceeds along the top face.

7. Right-click outside the molding and select Close

Component. (You can also go to Select mode and

click outside the component bounding box.)