Supported Modelica features (discussion item)

[casella]

Overview of Base Modelica features supported by BaseModelica.jl

Already supported Base Modelica features

• Real types
• Integer types
• Boolean types
• Differential-algebraic equations
• Constants and parameters with fixed = true evaluated as literal constants
• Initial equations
• Parameters with fixed = false evaluated during initialization
• Conditional expressions with event generation
• Conditional equations with event generation
• Discrete variables and when-equations (no event iterations)
• Index reduction

Features that have a corresponding MTK counterpart and could be supported

• String types
• Array types
• Record types
• Event iteration for discrete variables
• Clocked variables
• Non-evaluated parameters with binding equations
• State variable change
• delay() and spatialDistribution() (solution of bi-directional 1D advection equation)
• External C functions

Other features (unclear if they could be supported)

• Functions
• External objects

[olivleno]

Excellent. This is already pretty much all you need to handle scalar hybrid DAE systems without even-iteration applicable to many model-based control problems.

[ChrisRackauckas]

I don't see why external C functions, delay, bidirectional advection, and records wouldn't be in the list of what MTK already supports given there are tutorials about it

[casella]

My bad, I didn't check that 😅

I updated the list. Please let me know if I forgot or misunderstood anything else important.