Transformation scale work but icon doesn't change

[julesx81 (Lorenzo S.)]

Why doesn’t change Icon of Grid_Power item ?

grid.scale

[..0.000]=0
]0.001..]=1

file.items

Number Grid_Power "Grid Power [SCALE(grid.scale): %s]"     <energygrid>   { channel="fronius:powerinverter:mybridge:myinverter:powerflowchannelpgrid" }

icons

Regards.
Lorenzo

[rossko57]

Dynamic icons are always selected based on actual Item state. Any transform you do for display is irrelevant.

[julesx81 (Lorenzo S.)]

ok understood, but how can i set an icon for negative value ?

[rossko57]

@julesx81

how can i set an icon for negative value ?

You can’t. Dynamic numeric icons only support values 0 to 100 and the “everything else” default option.

Bit more detail

Dynamic Icon Float Number

The RSSI is probably not working because the number is negative. I’m wondering if dynamic icons can support negative numbers because the - is reserved to separate the icon name from the state. I suspect it wont work so you will have to write a rule to change your RSSI Numbers to a positive value to use dynamic icons with it. Given Icon filenames may include lowercase letters, numbers and underscores (_) Uppercase letters and special characters are prohibited from the docs I’m pretty positi…

Potentially, you could copy your negative number to a positive “shadow” Item, and use sitemap visibility= feature to switch display lines between “real” and “shadow” Item - with a different set of icons - switching based on negative or positive value of “real” Item
https://www.openhab.org/docs/configuration/sitemaps.html#visibility

[julesx81 (Lorenzo S.)]

It should be solved, tested only then case… tomorrow morning will confirm.

file.items

Number Grid_Power "Grid Power  [%.2f W]"     <energygrid>   { channel="fronius:powerinverter:mybridge:myinverter:powerflowchannelpgrid" }
Number Load_Power "Load Power [%.2f W]"                     { channel="fronius:powerinverter:mybridge:myinverter:powerflowchannelpload" }
Number Battery_Power "Battery Power [%.2f W]" <battery>     { channel="fronius:powerinverter:mybridge:myinverter:powerflowchannelpakku" }
Number Gpower_Out "Grid Power Out [%.2f W]"      <energygridout>   { channel="" }
Number Gpower_In  "Grid Power In  [%.2f W]"      <energygridin>    { channel="" }

file.rules

rule "Grid Power icon"
when 
    Item Grid_Power received update
then
    val strGP = Grid_Power.state as DecimalType
    val float gpFloat = strGP.floatValue
    //logInfo("grid power rules", "gpFloat : " + gpFloat + " W")
    if ( gpFloat > 0 ) {
        Gpower_Out.sendCommand(0)
        Gpower_In.sendCommand(Grid_Power.state)
    }
    else{
        Gpower_In.sendCommand(0)
        Gpower_Out.sendCommand(Grid_Power.state)
    }
end  

file.sitemaps

    Frame label="FTV" {
    	Text item=Day_Energy
    	Text item=AC_Powery
    	Text item=FAC icon="freq"
    	Text item=IAC icon="currentac"
    	Text item=IDC icon="currentdc"
    	Text item=UAC icon="voltac"
    	Text item=UDC icon="voltdc"
        //Text item=Grid_Power
    	Text item=Gpower_Out visibility=[Gpower_In==0]
        Text item=Gpower_In visibility=[Gpower_Out==0]
    	Text item=Load_Power
    	Text item=Battery_Power
    	Text item=Year_Energy
     	Text item=Total_Energy
    }

[rossko57]

@julesx81

Number Gpower_Out “Grid Power Out [%.2f W]” { channel=“” }

Where did you get that syntax from? To define an Item with no channel, just leave out the optional { } section.

Number Gpower_Out "Grid Power Out [%.2f W]" <energygridout>

I think in your rule, you’d want to get the absolute (“positive”) value of your number if it is negative?

[julesx81 (Lorenzo S.)]

Fortunately works as expected.

i tried as below, but sitemap was not rebuilt correctly.

Number Gpower_Out “Grid Power Out [%.2f W]” { }

@rossko57

I think in your rule, you’d want to get the absolute (“positive”) value of your number if it is negative?

Nope, i just wanted set different icons.

Many Thanks

Lorenzo