contextCount function (context query)

Syntax

float contextCount(target, label)

Parameters

target (selector)

intra	Checks against labeled shapes in the same shape tree (i.e. from the same inital shape).
inter	Checks against labeled shapes in other shape trees (i.e. generated by other initial shapes in the neighborhood).
all	Checks both intra and inter.

label (string)
The context query is performed only on shapes that match the requested label. Must not be empty. If the label is empty, 0 is returned.

Returns

The number of shapes with the given label. If no shape is found matching the specified label, 0 is returned.

Description

A context query that returns the number of shapes with the specified label in the environment.

Learn more about important characteristics for context queries in conditions and inter context.

Each label operation does not "label" the current shape but rather creates a new labeled shape that is counted separately.

Example

Lot --> split(x) { ~1 : Split }*

Split --> split(z) { ~1 : Tile }*

Tile --> label("Tile") Color

Color --> case contextCount(intra, "Tile") <= 9 : color(0,1,0)
          else : color(1,0,0)