shapeL, shapeU, shapeO operations

Syntax

shapeL(frontWidth, leftWidth) { selector operator operations | selector operator operations }

shapeU(frontWidth, rightWidth, leftWidth) { selector operator operations | selector operator operations }

shapeO(frontWidth, rightWidth, backWidth, leftWidth) { selector operator operations | selector operator operations }

Parameters

• frontWidth (float)
  Depth of front wing.
• leftWidth (float)
  Width of left wing.
• rightWidth (float)
  Width of right wing.
• backWidth (float)
  Depth of rear wing.
• selector (selector)

  shape	The setback polygon (i.e. the L,U or O shape).
  remainder	Selects the remainder of the polygon.

• operator
  The operator defines how the setback polygons are used to generate successor shapes. This also applies to shapes with more than one face.

  :	Each polygon is put into a new shape.
  =	All polygons corresponding to the selector are combined into one new shape.

• operations
  A sequence of shape operations to execute on the newly created shape.

Description

The shapeL, shapeU, shapeO operations select a number of edges, depending on predefined spatial selectors, and set them back by a user-defined distance.

These operations are another way of applying setbacks. For example
shapeL(frontWidth, leftWidth) { selector operator operations | ... }
can also be achieved with the setback operation and the comp function:
setback( comp(fe) { front=frontWidth | left=leftWidth } ) { selector operator operations | ... }

Geometry tags

The operations automatically apply semantic component tags to the resulting edge components. Refer to the setback operation for more details.

Related

• comp operation
• offset operation
• setback operation
• setbackPerEdge operation
• setbackToArea operation
• comp function

Examples

L-Shapes

A block filled with L-shapes.

attr myFrontDepth = 5
attr myLeftWidth = 11

LotInner -->
    Lot
		
Lot -->
    offset(-3, inside)
    shapeL(myFrontDepth,myLeftWidth) { shape : Footprint | remainder: NIL }
	
Footprint -->
    extrude(rand(10,20)) color(1,0,0)

U-Shapes

A block filled with U-shapes.

attr myFrontDepth = 5
attr myRightWidth = 3
attr myLeftWidth = 11


LotInner -->
    Lot
		
Lot -->
    offset(-3, inside)
    shapeU(myFrontDepth,myRightWidth,myLeftWidth) { shape : Footprint | remainder: NIL }
	
Footprint -->
    extrude(rand(10,20)) color(1,0,0)

O-Shapes

A block filled with O-shapes.

attr myFrontDepth = 5
attr myRightWidth = 3
attr myBackDepth = 2
attr myLeftWidth = 11

		
LotInner -->
    Lot
        
Lot -->
    offset(-3, inside)
    shapeO(myFrontDepth,myRightWidth,myBackDepth,myLeftWidth) { shape : Footprint | remainder: NIL }

Footprint -->
    extrude(rand(10,20)) color(1,0,0)

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