I can get wind direction from Open Weather, but it comes in degrees. Is there a way to convert that to compass direction?
Example: 180 = South
Is this something that can be done in SharpTools math?
How about using a ternary expression:
$degrees = $openWeatherDegrees
$degrees > 337 ? "NNW" : $degrees > 314 ? "NW" : $degrees > 292 "WNW" ......
Completed per this chart:
Thank you Nezmo!
Do you have an example of how this expression would set a variable?
Currently mine looks like this: $context.response.data.hourly.0.wind_deg
Something like this:
$windFormatted would be your variable that would hold the cardinal/compass direction.
That 315 should be 314.
Thanks @Nezmo - I picked up the greater than 314, but I’m getting an error upon updating the rule.
Error Parsing: False part of conditional expression expected (char 724)
$degrees = $context.response.data.hourly.0.wind_deg
$degrees > 337 ? “NNW” : $degrees > 314 ? “NW” : $degrees > 292 ? “WNW” : $degrees > 269 ? “W” : $degrees > 247 ? “WSW” : $degrees > 224 ? “SW” : $degrees > 202 ? “SSW” : $degrees > 179 ? “S” : $degrees > 157 ? “SSE” : $degrees > 134 ? “SE” : $degrees > 112 ? “ESE” : $degrees > 89 ? “S” : $degrees > 67 ? “ENE” : $degrees > 44 ? “NE” : $degrees > 22 ? “NNE” : $degrees > 0 ? “N”
Try ending the expression with:
: "N"
Instead of:
: $degrees > 0 ? "N"
Can you post the entire expression.
$degrees = $context.response.data.hourly.0.wind_deg
$degrees > 337 ? “NNW” : $degrees > 314 ? “NW” : $degrees > 292 ? “WNW” : $degrees > 269 ? “W” : $degrees > 247 ? “WSW” : $degrees > 224 ? “SW” : $degrees > 202 ? “SSW” : $degrees > 179 ? “S” : $degrees > 157 ? “SSE” : $degrees > 134 ? “SE” : $degrees > 112 ? “ESE” : $degrees > 89 ? “S” : $degrees > 67 ? “ENE” : $degrees > 44 ? “NE” : $degrees > 22 ? “NNE” : “N”
I’m confused how you are getting that evaluation error. The rule builder UI cannot evaluate an expression in line when a context variable is in play:
Got it. I’m looking.
In a JSON format editor I found, I got this: There seems to be a problem with your JSON.
Error message: Unexpected token ‘$’, “$degrees =”… is not valid JSON
Try this:
$degrees = $context.response.data.hourly.0.wind_deg
$degrees > 337 ? "NNW" : $degrees > 314 ? "NW" : $degrees > 292 ? "WNW" : $degrees > 269 ? "W" : $degrees > 247 ? "WSW" : $degrees > 224 ? "SW" : $degrees > 202 ? "SSW" : $degrees > 179 ? "S" : $degrees > 157 ? "SSE" : $degrees > 134 ? "SE" : $degrees > 112 ? "ESE" : $degrees > 89 ? "S" : $degrees > 67 ? "ENE" : $degrees > 44 ? "NE" : $degrees > 22 ? "NNE" : "N"
You had angled quotes. They have to be straight quotes.
I copied and pasted yours… Same error. Where do you get straight quotes? I only have one set on the keyboard.
Yeah, sorry, I think they get changed with the copy and paste. I can see that in my post now.
I’m on a Mac and the straight quotes are the default.
I did some Googling and:
I found an easier way on Google… (Windows) I turned them OFF permanent.
Changing them now…
The $windDirection variable should be defined as a string variable.
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I don’t see that as an option when creating the variable. Is it done in the rule somehow?