@ Pure public DoubleProperty firstAxisExtentProperty ( ) { if ( this . extentR == null ) { this . extentR = new SimpleDoubleProperty ( this , MathFXAttributeNames . FIRST_AXIS_EXTENT ) { @ Override protected void invalidated ( ) { if ( get ( ) < 0. ) { set ( 0. ) ; } } } ; } return this . extentR ; }
Replies the property for the extent of the first axis .