Copyright (C) 1994, Digital Equipment Corp.
Created on Tue Jan 19 14:00:00 PST 1994 by najork
MODULE ObQuadMeshGO;
IMPORT Color, ObAux, ObColor, ObCommand, ObInt, ObLib, ObPoint3, ObProtoLoader,
ObShape, ObSurfaceGO, ObValue, Obliq, Point3, ProxiedObj, QuadMeshGO,
QuadMeshGOProxy, SynLocation;
CONST
pkgname = "QuadMeshGO";
***************************************************************************
Wrapper for QuadMeshGO.T
***************************************************************************
TYPE
T = ObSurfaceGO.T BRANDED "ObQuadMeshGO.T" OBJECT END;
PROCEDURE AddTObj (qm : QuadMeshGO.T) =
<* FATAL ObValue.Error, ObValue.Exception *>
BEGIN
WITH obj = Obliq.ObjectClone (Obliq.Vals {TProto}),
raw = NEW (T, what := "<a QuadMeshGO.T>", po := qm) DO
Obliq.ObjectUpdate (obj, "raw", raw);
qm.proxy := NEW (ProxiedObj.Proxy, obj := obj);
END;
END AddTObj;
PROCEDURE GetArg (args : ObValue.ArgArray;
idx : INTEGER;
package : ObLib.T;
opCode : ObLib.OpCode;
loc : SynLocation.T) : QuadMeshGO.T
RAISES {ObValue.Error, ObValue.Exception} =
BEGIN
WITH raw = Obliq.ObjectSelect (args[idx], "raw") DO
TYPECASE raw OF
T (node) => RETURN node.po;
ELSE
ObValue.BadArgType (idx, pkgname, package.name, opCode.name, loc);
RETURN NIL; (* ... only to suppress compiler warning *)
END;
END;
END GetArg;
***************************************************************************
Setup procedures
***************************************************************************
PROCEDURE SetupPackage () =
PROCEDURE NewOpCode (name : TEXT; arity : INTEGER; code : Code) : OpCode =
BEGIN
RETURN NEW (OpCode, name := name, arity := arity, code := code);
END NewOpCode;
TYPE
OpCodes = ARRAY OF ObLib.OpCode;
VAR
opCodes: REF OpCodes;
BEGIN
opCodes := NEW (REF OpCodes, NUMBER (Code));
opCodes^ :=
OpCodes {
NewOpCode ("BadSize", -1, Code.BadSize),
NewOpCode ("ColorsUndefined", -1, Code.ColorsUndefined),
NewOpCode ("New", 1, Code.New),
NewOpCode ("NewWithShapeHint", 2, Code.NewWithShapeHint),
NewOpCode ("AddFacetColors", 2, Code.AddFacetColors),
NewOpCode ("SetColorOfFacet", 4, Code.SetColorOfFacet)
};
ObLib.Register (NEW (Package, name := pkgname, opCodes := opCodes));
BadSize :=
NEW (ObValue.ValException, name := pkgname & "_BadSize");
ColorsUndefined :=
NEW (ObValue.ValException, name := pkgname & "_ColorsUndefined");
(* DONT KNOW YET WHETHER TO INHIBIT TRANSMISSIONS ... *)
ObLib.RegisterHelp (pkgname, Help);
END SetupPackage;
VAR
TProto : ObValue.Val;
PROCEDURE SetupModule (loader : ObProtoLoader.T) =
BEGIN
(*** Retrieve the prototype ***)
loader.load ("QuadMeshGO.obl");
TProto := loader.get ("QuadMeshGO_TProto");
(*** Register the proxy maker ***)
QuadMeshGOProxy.MkProxyT := AddTObj;
END SetupModule;
***************************************************************************
Execution machinery
***************************************************************************
TYPE
Code = {BadSize, ColorsUndefined,
New, NewWithShapeHint,
AddFacetColors, SetColorOfFacet};
OpCode = ObLib.OpCode OBJECT
code: Code;
END;
Package = ObLib.T OBJECT
OVERRIDES
Eval := DoEval;
END;
VAR
BadSize : ObValue.ValException;
ColorsUndefined : ObValue.ValException;
PROCEDURE DoEval (self : Package;
opCode : ObLib.OpCode;
<* UNUSED *> arity : ObLib.OpArity;
READONLY args: ObValue.ArgArray;
<* UNUSED *> temp : BOOLEAN;
loc : SynLocation.T) : ObValue.Val
RAISES {ObValue.Error, ObValue.Exception} =
BEGIN
CASE NARROW (opCode, OpCode).code OF
| Code.BadSize =>
RETURN BadSize;
| Code.ColorsUndefined =>
RETURN ColorsUndefined;
| Code.New =>
TRY
WITH m = Obliq.ArraySize (args[1]),
n = Obliq.ArraySize (Obliq.ArrayGet (args[1], 0)),
points = NEW (REF ARRAY OF ARRAY OF Point3.T, m, n) DO
FOR i := 0 TO m - 1 DO
WITH slice = Obliq.ArrayGet (args[1], i) DO
FOR j := 0 TO n - 1 DO
points[i][j] := ObPoint3.ObliqToM3 (Obliq.ArrayGet (slice, j));
END;
END;
END;
WITH qm = NEW (QuadMeshGO.T).init (points^) DO
RETURN qm.proxy.obj;
END;
END;
EXCEPT
| ObValue.Error =>
ObValue.BadArgType(1, "[m*[n*Point3]]", self.name, opCode.name, loc);
RETURN ObValue.valOk; (* ... only to suppress compiler warning *)
END;
| Code.NewWithShapeHint =>
TRY
WITH m = Obliq.ArraySize (args[1]),
n = Obliq.ArraySize (Obliq.ArrayGet (args[1], 0)),
points = NEW (REF ARRAY OF ARRAY OF Point3.T, m, n) DO
FOR i := 0 TO m - 1 DO
WITH slice = Obliq.ArrayGet (args[1], i) DO
FOR j := 0 TO n - 1 DO
points[i][j] := ObPoint3.ObliqToM3 (Obliq.ArrayGet (slice, j));
END;
END;
END;
WITH shape = ObShape.GetArg (args, 2, self, opCode, loc),
qm = NEW (QuadMeshGO.T).init (points^, shape) DO
RETURN qm.proxy.obj;
END;
END;
EXCEPT
| ObValue.Error =>
ObValue.BadArgType(1, "[m*[n*Point3]]", self.name, opCode.name, loc);
RETURN ObValue.valOk; (* ... only to suppress compiler warning *)
END;
| Code.AddFacetColors =>
TRY
WITH qm = GetArg (args, 1, self, opCode, loc),
m = Obliq.ArraySize (args[1]),
n = Obliq.ArraySize (Obliq.ArrayGet (args[1], 0)),
colors = NEW (REF ARRAY OF ARRAY OF Color.T, m, n) DO
FOR i := 0 TO m - 1 DO
WITH slice = Obliq.ArrayGet (args[1], i) DO
FOR j := 0 TO n - 1 DO
colors[i][j] := ObColor.ObliqToM3 (Obliq.ArrayGet (slice, j));
END;
END;
END;
qm.addFacetColors (colors^);
RETURN ObValue.valOk;
END;
EXCEPT
| ObValue.Error =>
ObValue.BadArgType(1, "[m*[n*Color]]", self.name, opCode.name, loc);
RETURN ObValue.valOk; (* ... only to suppress compiler warning *)
| QuadMeshGO.BadSize =>
ObValue.RaiseException (BadSize, self.name & "_" & opCode.name, loc);
RETURN ObValue.valOk; (* ... only to suppress compiler warning *)
END;
| Code.SetColorOfFacet =>
WITH quadmesh = GetArg (args, 1, self, opCode, loc),
i = ObInt.GetArg (args, 2, self, opCode, loc),
j = ObInt.GetArg (args, 3, self, opCode, loc),
color = ObColor.GetArg (args, 4, self, opCode, loc) DO
TRY
quadmesh.setColorOfFacet (i, j, color);
RETURN ObValue.valOk;
EXCEPT
| QuadMeshGO.ColorsUndefined =>
ObValue.RaiseException (ColorsUndefined,
self.name & "_" & opCode.name, loc);
RETURN ObValue.valOk; (* ... only to suppress compiler warning *)
END;
END;
END;
END DoEval;
***************************************************************************
Help
***************************************************************************
PROCEDURE Help (self : ObCommand.T; arg : TEXT; <* UNUSED *> data : REFANY) =
BEGIN
ObAux.Help (self, arg, pkgname);
END Help;
BEGIN
END ObQuadMeshGO.