PTOLEMY II - CiteSeerX

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Actor Libraries BitsToInt (extends SDFConverter): Convert 32 successive binary inputs into a two’s complement integer. CartesianToComplex (extends TypedAtomicActor): Convert two tokens representing the real and imaginary of a complex number into their complex representation. CartesianToPolar (extends TypedAtomicActor): Convert a Cartesian pair (a token on the x input and a token on the y input) to two tokens representing its polar form (which are output on angle and magnitude). ComplexToCartesian (extends TypedAtomicActor): Convert a token representing a complex number into its Cartesian components (which are output on real and imag). ComplexToPolar (extends TypedAtomicActor): Convert a token representing a complex number into two tokens representing its polar form (which are output on angle and magnitude). DoubleToFix (extends Converter): Convert a double into a fix point number with a specific precision, using a specific quantization strategy. ExpressionToToken (extends Converter): Read a string expression from the input port and outputs the token resulting from the evaluation. FixToDouble (extends Converter): Convert a fix point into a double, by first setting the precision of the fix point to the supplied precision, using a specific quantization strategy. FixToFix (extends Converter): Convert a fix point into another fix point with possibly a different precision, using a specific quantizer and overflow strategy. IntToBits (extends SDFConverter): Convert an input integer into 32 successive binary outputs. InUnitsOf (extends Transformer): Convert input tokens to specified units by dividing the input by the value of the units parameter. This actor is designed to be used with a unit system, which must be included in the model (note that some Ptolemy <strong>II</strong> applications do not include unit systems). LongToDouble (extends Converter): Convert an input of type long to an output of type double. PolarToCartesian (extends TypedAtomicActor): Converts two tokens representing a polar coordinate (a token on angle and a token on magnitude) to two tokens representing their Cartesian form (which are output on x and y). PolarToComplex (extends TypedAtomicActor): Converts two tokens representing polar coordinates (a token on angle and a token on magnitude) to a token representing their complex form. Round (extends TypedAtomicActor): Produce an output token with a value that is a rounded version of the input. The rounding method is specified by the function attribute, where valid functions are ceil, floor, round, and truncate. StringToUnsignedByteArray (extends Converter): Convert an input of type string to an array of type unsignedByte. TokenToExpression (extends Converter): Read a string expression from the input port and output the token resulting from the evaluation. 136 Ptolemy <strong>II</strong>
Actor Libraries UnsignedByteArrayToString (extends Converter): Convert an input that is an array of bytes into a string. 4.3.5 Flow Control The flow control actors route tokens or otherwise affect the flow of control. Aggregators BusAssembler (extends TypedAtomicActor): Assemble input port channels into output bus. BusDisassembler (extends TypedAtomicActor): Split input bus channels onto output port channels. Commutator (extends Transformer): Interleave the data on the input channels into a single sequence on the output. Distributor (extends Transformer): Distribute the data on the input sequence into multiple sequences on the output channels. Multiplexor (extends Transformer): Produce as output the token on the channel of input specified by the select input. Exactly one token is consumed from each channel of input in each firing. RecordAssembler (extends TypedAtomicActor): Produce an output token that results from combining a token from each of the input ports (which must be added by the user). To add input ports to the actor in Vergil, right click on its icon and select “Configure Ports,” and then select “Add.” The name of each field in the record is the name of the port that supplies the field. RecordDisassembler (extends TypedAtomicActor): Produce output tokens on the output ports (which must be added by the user) that result from separating the record on the input port. To add output ports to the actor in Vergil, right click on its icon and select “Configure Ports,” and then select “Add.” The name of each field extracted from the record is the name of the output port to which the value of the field is sent. RecordUpdater (extends TypedAtomicActor): Produce an output token that results from the union of the record read from the input port and the values supplied by the other input ports. The user must create the other input ports. Input ports with the same name as a field in the original input record are used to update the corresponding field in the output token. Select (extends Transformer): Produce as output the token on the channel of input specified by the control input. Tokens on channels that are not selected are not consumed. Switch (extends Transformer): Produce the token read from the input port on the channel of output specified by the control input. Synchronizer (extends Transformer): Wait until at least one token exists on each channel of input, then consume exactly one token from each input channel and output each token on its corresponding output channel. VectorAssembler (extends Transformer): On each firing, read exactly one token from each channel of the input port and assemble the tokens into a double matrix with one column. Heterogeneous Concurrent Modeling and Design 137
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PTOLEMY II HETEROGENEOUS CONCURRENT
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VOLUME 1 INTRODUCTION TO PTOLEMY II
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Volume 1 Contents Introduction to P
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2.10.3. Constructing Modal Models 8
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7. MoML 191 7.1. Introduction 191 7
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1 Introduction Author: Edward A. Le
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Introduction heterochronous dataflo
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Introduction A major emphasis in Pt
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Introduction determine when actors
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Introduction provides levels of vis
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Introduction is a guard, and the se
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Introduction well. All of these are
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Introduction clients to update thei
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Introduction will be supplied with
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Introduction 1.3.12 Synchronous Dat
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Introduction FIGURE 1.10. Refinemen
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Introduction occlusions due to terr
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Introduction tion. The overall arch
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Introduction kernel.attributes This
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Introduction 1.5.2 Overview of Key
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Introduction Actor interfaces are k
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Heterogeneous Concurrent Modeling a
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Introduction actor actor.gui data.e
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Introduction cient, scalable, and u
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Introduction 1.5.8 Future Capabilit
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Introduction Appendix A: UML — Un
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Introduction grams, the only constr
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2 Using Vergil Authors: Edward A. L
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Using Vergil 2.2.2 Executing a Pre-
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Using Vergil The Lorenz attractor m
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Using Vergil The Continuous-Time (C
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Using Vergil box in figure 2.11. En
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Using Vergil Don’t panic! Excepti
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Using Vergil tions are a normal par
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Using Vergil 2.4 Hierarchy Ptolemy
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Using Vergil Then using these ports
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Using Vergil the default 0.1 to 0.0
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Using Vergil pan window, it is easy
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Using Vergil FIGURE 2.33. The pan w
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Using Vergil we have modified the c
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Using Vergil model, simply copy (or
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Using Vergil A key issue is to deci
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Using Vergil instances. This proble
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Using Vergil quick tour for more de
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Using Vergil uses the index in the
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Using Vergil AddSubtract actor, and
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Using Vergil If you look inside the
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Page 97 and 98: Using Vergil transition (or right c
Page 99 and 100: Using Vergil Once you have created
Page 101 and 102: Using Vergil The grid is turned off
Page 103 and 104: Authors: Edward A. Lee Xiaojun Liu
Page 105 and 106: Expressions classes to create a gen
Page 107 and 108: Expressions The % operation is a mo
Page 109 and 110: Expressions attribute, which includ
Page 111 and 112: Expressions 3.3.5 State Machines Ex
Page 113 and 114: Expressions whose value is an array
Page 115 and 116: Expressions from it. For instance,
Page 117 and 118: Expressions defined. For example, >
Page 119 and 120: Expressions length is given by the
Page 121 and 122: Expressions Thus, for example, you
Page 123 and 124: Expressions number. With one additi
Page 125 and 126: Expressions value. For example, fix
Page 127 and 128: Expressions In the example in figur
Page 129 and 130: Expressions A.2 Basic Mathematical
Page 131 and 132: Expressions A.3 Matrix, Array, and
Page 133 and 134: Expressions A.5 Signal Processing F
Page 135 and 136: Expressions TABLE 8: Functions perf
Page 137 and 138: 4 Actor Libraries Authors: Elaine C
Page 139 and 140: Actor Libraries properly in the CT
Page 141 and 142: Actor Libraries ing that multiple c
Page 143 and 144: Actor Libraries TypedAtomicActor «
Page 145: Actor Libraries SequenceScope (exte
Page 149 and 150: Actor Libraries MobileFunction (ext
Page 151 and 152: Actor Libraries LogicFunction (exte
Page 153 and 154: Actor Libraries Sleep (extends Tran
Page 155 and 156: Actor Libraries VariableFIR (extend
Page 157 and 158: Actor Libraries Integrator: Integra
Page 159 and 160: Actor Libraries Figure 4.4 shows th
Page 161 and 162: 5 Designing Actors Authors: Christo
Page 163 and 164: Designing Actors /** Javadoc commen
Page 165 and 166: Designing Actors although with most
Page 167 and 168: Designing Actors import ptolemy.act
Page 169 and 170: Designing Actors makes such actors
Page 171 and 172: Designing Actors same parameter val
Page 173 and 174: Designing Actors morphic actor comp
Page 175 and 176: Designing Actors To get data polymo
Page 177 and 178: Designing Actors public class Seque
Page 179 and 180: Designing Actors be used in domains
Page 181 and 182: Designing Actors alComm actor. Beca
Page 183 and 184: Designing Actors attribute has valu
Page 185 and 186: Designing Actors import ptolemy.act
Page 187 and 188: 6 Coding Style Authors: Christopher
Page 189 and 190: Coding Style /* One line descriptio
Page 191 and 192: Coding Style Copyright (c) 2004 The
Page 193 and 194: Coding Style @version $Id: NamedObj
Page 195 and 196: Coding Style } We use instead the i
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Coding Style * @exception MyExcepti
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Coding Style + "it does not impleme
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Authors: Edward A. Lee Steve Neuend
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MoML cutes it forever, until you hi
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MoML A second difference between ou
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MoML
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MoML 7.3.3 Names and Classes Most M
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MoML Here, the element named
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MoML implement. 7.3.7 Doc Element S
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MoML It is also sometimes necess
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MoML then there will be a link t
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MoML found. For example, if the cla
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MoML it cannot collide with the nam
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MoML The rendering of the icon is d
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MoML 7.4.5 Deleting Entities, Relat
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MoML This unlinks a port from the s
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MoML model. The EntityLibrary class
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MoML Suppose that using incremental
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MoML Generate a sine wave.
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MoML
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MoML Number of iterations in
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MoML -P- The f
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MoML -P- The phase,
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8 Custom Applets Authors: Edward A.
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Custom Applets html code, see the J
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Custom Applets public class Tutoria
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Custom Applets then the result of
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Custom Applets 8.3.5 Using Model Pa
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Custom Applets ptolemy/domains/doma
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References [1] G. Agha, Actors: A M
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[33] S. A. Edwards, “The Specific
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[67] E. Kohler, The Click Modular R
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[95] J. Liu, X. Liu, T. J. Koo, B.
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[132]W. R. Sutherland, "The on-Line
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Glossary abstract syntax ..........
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Ptolemy II ........................
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Index Symbols - in UML 41 # in UML
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coin flips 142 Color class 173 colo
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entity in XML 198 EntityLibrary cla
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Director class 159 inverse FFT 124
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CompositeEntity class 206 nextPower
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safety 34 SampleDelay actor 78, 138
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type constraint 155 type constraint
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