Architectural_Design_with_SketchUp

Architectural Design with SketchUp
t2 = Geom::Transformation.rotation instance.bounds.center,
[0,0,1],
angle.degrees
instance.transform! t2
}
end
}
There are a few more parameters in this code than we had before (brick spacing in both
directions, number of bricks, and opening angle), but this gives you the flexibility to experiment
with them and generate variations in the results.
In the code, we first check that the selected item is actually a ComponentInstance. Next,
we iterate through each horizontal and vertical brick placement. In this iteration, we use a
translation transformation to place the brick and then we apply a rotation to the new component
instance. This allows us to rotate the brick “in place.”
Figure 6.18 shows a rendering of a generated wall.
Figure 6.17: Single selected brick and generated wall
Figure 6.18: Rendering of generated wall
Placing Components on Faces
262
In this example, we take a component (a simple circle) and copy it
onto the center of each selected face of some existing geometry.
To make the code work, prepare the component first: Create a
circle and turn it into a component using SketchUp’s standard
tools. Edit the component so that the circle is centered on the
component’s coordinate system, as shown here.
Create any shape you like that has faces. In my example, I
created a shell using the Extrude Edges by Edges tool from the
Extrusion Tools plugin (see Chapter 4). Figure 6.19 shows both
the single component and all ungrouped faces selected and
ready for the code to do its magic.