Hi,
package motion
model ramp
type State = enumeration (A,B,C);
discrete State state(start = State.A);
discrete Integer i(start = 10);
algorithm
when sample(0,1) then
i := i + 1;
// state := State.A; // error when uncommented
end when;
end ramp;
end motion;
I want to separate the motion equations into 3 states: accelerating,driving,decelerating
each state will provide its own equations for x and v.
Unfortunately the above code gives an error. Is there something wrong with usage of
enumeration variables or are enumerations not supported for the purpose I would like them to use?
Thanks in advance,
Daniel
Full Version: using enumeration for states
for dymola 6.1 using Enumeration types, see following codes,
model ramp
State.Temp state(
start=State.accelerating);
discrete Integer i(start = 10);
algorithm
when sample(0,1) then
i := i + 1;
state := State.accelerating; // error when uncommented
end when;
end ramp;
additionaly you need this package
package State
extends Modelica.Icons.Enumeration;
constant Integer accelerating=1;
constant Integer driving=2;
constant Integer decelerating=3;
type Temp
extends Modelica.Icons.TypeInteger;
end Temp;
end State;
it is some workaround for the enumeration type, hopefully this will help you
Regards
Hi,
package motion
model ramp
type State = enumeration (A,B,C);
discrete State state(start = State.A);
discrete Integer i(start = 10);
algorithm
when sample(0,1) then
i := i + 1;
// state := State.A; // error when uncommented
end when;
end ramp;
end motion;
I want to separate the motion equations into 3 states: accelerating,driving,decelerating
each state will provide its own equations for x and v.
Unfortunately the above code gives an error. Is there something wrong with usage of
enumeration variables or are enumerations not supported for the purpose I would like them to use?
Thanks in advance,
Daniel
CODE
model ramp
State.Temp state(
start=State.accelerating);
discrete Integer i(start = 10);
algorithm
when sample(0,1) then
i := i + 1;
state := State.accelerating; // error when uncommented
end when;
end ramp;
additionaly you need this package
CODE
package State
extends Modelica.Icons.Enumeration;
constant Integer accelerating=1;
constant Integer driving=2;
constant Integer decelerating=3;
type Temp
extends Modelica.Icons.TypeInteger;
end Temp;
end State;
it is some workaround for the enumeration type, hopefully this will help you
Regards
QUOTE(daniel@ka @ Nov 23 2009, 11:29 AM) 
Hi,
package motion
model ramp
type State = enumeration (A,B,C);
discrete State state(start = State.A);
discrete Integer i(start = 10);
algorithm
when sample(0,1) then
i := i + 1;
// state := State.A; // error when uncommented
end when;
end ramp;
end motion;
I want to separate the motion equations into 3 states: accelerating,driving,decelerating
each state will provide its own equations for x and v.
Unfortunately the above code gives an error. Is there something wrong with usage of
enumeration variables or are enumerations not supported for the purpose I would like them to use?
Thanks in advance,
Daniel
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