Architecture.md

Architecture

engine

The main engine written in C++

DAG ie. Directed Acyclical Graph

• derivative - contains implementation of symbolic differentiation
• equations - MathDAG and more ...
• evalGodley - evaluate a Godley Table
• evalOp - evaluate an Operation. EvalOp, ConstantEvalOp, EvalOpVector
• expr - syntactic sugar for representing expressions
• flowCoef - a numerical coefficient times a variable (a "flow")
• godleyExport - export a Godley Table to CSV or Latex
• integral - additional stock variable, that integrates its flow variable
• variableValue - VariableValue, ValueVector, VariableValues

model

Main application logic:

The main app uses Cairo

Cairo is a 2D graphics library with support for multiple output devices. Currently supported output targets include the X Window System (via both Xlib and XCB), Quartz, Win32, image buffers, PostScript, PDF, and SVG file output. Experimental backends include OpenGL, BeOS, OS/2, and DirectFB.

• cairoItems - display Cairo screen items
• equationDisplayItem
• godley - GodleyTable - godley table data container and logic
• godleyIcon - GodleyIcon - Godley table icon
• group - Group, GroupPtr, GroupItems, ClosestPort - grouping of ...
• item - ClickType, ItemPortVector, Item - generic display item
• minsky - MinskyExclude, MinskyMatrix, Minsky, LocalMinsky - main app to render canvas etc
• notebase - NoteBase
• operationBase - Constant, NamedOp, IntOp, DataOp, OperationPtr, Operations - perform operation
• port - Port
• selection - Selection, LassoBox - select screen items
• slider - Slider - slider
• svgItem - SVGItem - generic SVG screen item
• switchIcon - SwitchIcon - switch icon
• variable - Variable, VarConstant, VariablePtr - variable
• wire - Wire - wire (ie. connection) between DAG nodes
• zoom zoom transformation

schema

Schemas for main model entities (ie. data containers) such as Variable, Port, Wire, Operation, ...

test

Various tests