contextCount function (context query)

Synopsis

float contextCount(target-selector, label)

Parameters

Returns

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

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.

Related

Example


contextCount
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)
	
In this example the Lot rule is applied to a single initial shape (intra context). Depending on the size of the shape a different number of tiles is generated by the split operations. The contextCount() query is uesd to color the tiles according to the total number of shapes with label "Tile".

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