org.hecl

Interface Command

All Known Implementing Classes:

ArcCmd, ArrowCmd, ArrowrelCmd, ArrowsCmd, ArrowsrelCmd, AssertCmd, Base64Cmd, BlockCmd, BlockflipCmd, BlockrotateCmd, BlockscaleCmd, BoxCmd, CircleCmd, CubiccurveCmd, DimangleCmd, DimlineCmd, DimlinerelCmd, DotCmd, EllipseCmd, EndblockCmd, ExprCmd, ExprinputCmd, FileCmds, FillboxCmd, FillcircleCmd, FillellipseCmd, FillpolygonCmd, FillrectCmd, FillrodCmd, FillsectorCmd, FillsegmentCmd, FontCmd, Force2Cmd, ForceCmd, ForceUnitCmd, FuCmd, GeomAddCmd, GeomAngleCmd, GeomAngleRadCmd, GeomAreaCmd, GeomAzimuthCmd, GeomCentroidCmd, GeomCrossproductCmd, GeomDistanceCmd, GeomDivideCmd, GeomDotproductCmd, GeomExtendCmd, GeomIntersectCmd, GeomIntersectlinepathCmd, GeomLengthCmd, GeomMultiplyCmd, GeomNormCmd, GeomOnlineCmd, GeomParallelCmd, GeomPolarCmd, GeomRotateCmd, GeomSubtractCmd, GeomToxCmd, GeomVectorCmd, HeclJavaCmd, HereCmd, HttpCmd, ImageCmd, JavaCmd, LabelCmd, LineCmd, LinemidCmd, LinepolarCmd, LinerelCmd, LinetoxCmd, LoadCmd, MathCmds, MmCmd, MovepolarCmd, MoverelCmd, MovetoCmd, MovetoxCmd, NfCmd, NullCmd, OffsetCmd, OpacityCmd, Operator, PenCmd, PointCmd, PolygonCmd, QuadcurveCmd, RectCmd, RodCmd, SectorCmd, SegmentCmd, StatAbsCmd, StatActionlineCmd, StatAddCmd, StatDistanceCmd, StatEquilibriumCmd, StatFequilibriumCmd, StatMequilibriumCmd, StatMomentCmd, StatMove2Cmd, StatMoveCmd, StatMultiplyCmd, StatSubtractCmd, StatTipCmd, TexdimangleCmd, TexlabelCmd, TextCmd, UnitCmd

public interface Command

The Command interface is the template for all commands implemented in Hecl.

Method Summary

Modifier and Type	Method and Description
Thing	cmdCode(Interp interp, Thing[] argv) The cmdCode method takes an interpreter and an array of Things, performs some calculations, and returns a Thing representing the computed value, or null.

Method Detail

cmdCode

Thing cmdCode(Interp interp,
              Thing[] argv)
       throws HeclException

The cmdCode method takes an interpreter and an array of Things, performs some calculations, and returns a Thing representing the computed value, or null.

Parameters:

interp - an Interp value

argv - a Thing[] value

Returns:

A Thing representing the computed value, or null.

Throws:

HeclException - if an error occurs