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Arcade-expressie berekenen in formulieren van Map Viewer

LJackson29

Hoi -

Ik ben nog maar net begonnen met Arcade en kan wel wat hulp gebruiken om te achterhalen wat er mis is met de onderstaande expressie. Ik heb 4 vragen (zie afbeelding 1). Vraag 1 en 4 worden in alle gevallen beantwoord. Of vraag 2 of 3 wordt beantwoord, hangt af van een andere vraag die aangeeft of het project een technische of natuurlijke oplossing is. Als ze ‘Technisch’ antwoorden, beantwoorden ze vraag 2; als ze ‘Natuurlijk’ antwoorden, beantwoorden ze vraag 3. Er is logica waardoor de vragen bewerkbaar zijn, afhankelijk van het eerste antwoord. Elke vraag krijgt een score van 0, 10 of 20. Vervolgens kennen we bonuspunten toe (vraag ‘Hoogst mogelijke score’ in de afbeelding) op basis van het aantal vragen waarvoor 20 punten zijn behaald, met behulp van de onderstaande logica (afbeelding 2). Mijn code geeft geen getal terug als een vraag de score 20 heeft. Als ze allemaal lager dan 20 zijn, geeft de code wel correct 0 terug. Kan iemand me vertellen wat ik verkeerd doe?

//allemaal hoogste

if ($feature.PR_RESF1_SCORE==20 && $feature.PR_RESF2ENG_SCORE==20 && $feature.PR_RESF3_SCORE==20) { //Allemaal hoogste - technisch

return 20;

} else if ($feature.PR_RESF1_SCORE==20 && $feature.PR_RESF2NAT_SCORE==20 && $feature.PR_RESF3_SCORE==20) { //Allemaal hoogste - natuurlijk

return 20;

//2 van de 3 hoogste

} else if ($feature.PR_RESF1_SCORE==20 && $feature.PR_RESF2ENG_SCORE==20 && $feature.PR_RESF3_SCORE<20) { //RF1 en 2 hoogste - technisch

return 10;

} else if ($feature.PR_RESF1_SCORE==20 && $feature.PR_RESF2NAT_SCORE==20 && $feature.PR_RESF3_SCORE<20) { //RF1 en 2 hoogste - natuurlijk

return 10;

} else if ($feature.PR_RESF1_SCORE==20 && $feature.PR_RESF2ENG_SCORE<20 && $feature.PR_RESF3_SCORE==20) { //RF1 en 3 hoogste - technisch

return 10;

} else if ($feature.PR_RESF1_SCORE==20 && $feature.PR_RESF2NAT_SCORE<20 && $feature.PR_RESF3_SCORE==20) { //RF1 en 3 hoogste - natuurlijk

return 10;

} else if ($feature.PR_RESF1_SCORE<20 && $feature.PR_RESF2ENG_SCORE==20 && $feature.PR_RESF3_SCORE==20) { //RF2 en 3 hoogste - technisch

return 10;

} else if ($feature.PR_RESF1_SCORE<20 && $feature.PR_RESF2NAT_SCORE==20 && $feature.PR_RESF3_SCORE==20) { //RF2 en 3 hoogste - natuurlijk

return 10;

//1 van de 3 hoogste

} else if ($feature.PR_RESF1_SCORE==20 && $feature.PR_RESF2ENG_SCORE<20 && $feature.PR_RESF3_SCORE<20) { //alleen RF1 hoogste - technisch

return 5;

} else if ($feature.PR_RESF1_SCORE==20 && $feature.PR_RESF2NAT_SCORE<20 && $feature.PR_RESF3_SCORE<20) { //alleen RF1 hoogste - natuurlijk

return 5;

} else if ($feature.PR_RESF1_SCORE<20 && $feature.PR_RESF2ENG_SCORE==20 && $feature.PR_RESF3_SCORE<20) { //alleen RF2 hoogste - technisch

return 5;

} else if ($feature.PR_RESF1_SCORE<20 && $feature.PR_RESF2NAT_SCORE==20 && $feature.PR_RESF3_SCORE<20) { //alleen RF2 hoogste - natuurlijk

return 5;

} else if ($feature.PR_RESF1_SCORE<20 && $feature.PR_RESF2ENG_SCORE<20 && $feature.PR_RESF3_SCORE==20) { //alleen RF3 hoogste - technisch

return 5;

} else if ($feature.PR_RESF1_SCORE<20 && $feature.PR_RESF2NAT_SCORE<20 && $feature.PR_RESF3_SCORE==20) { //alleen RF3 hoogste - natuurlijk

return 5;

//Geen enkele is de hoogste

} else if ($feature.PR_RESF1_SCORE<20 && $feature.PR_RESF2ENG_SCORE<20 && $feature.PR_RESF3_SCORE<20) { //geen enkele is de hoogste - technisch

return 0;

} else if ($feature.PR_RESF1_SCORE<20 && $feature.PR_RESF2NAT_SCORE<20 && $feature.PR_RESF3_SCORE<20) { //geen enkele is de hoogste - natuurlijk

return 0;

}

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Arcade

Accepted answers

LJackson29

@JoshuaSharp-Heward Thanks for your assistance on this - I really appreciate it. Knowing that you could get it to run, I started tracing back my steps and finally found the root cause. The Score fields are all short integers, but are calculated based upon select one questions. In those calculation scripts I had my numbers in single quotes which was causing the problem.

if ($feature.PR_RESF1=='1. RSS asset(s) BRE meet ALR'){

return '0';

I removed the single quotes, and the script is now working as expected :-). Being new to Arcade, I have to say I do not know when to use double quotes, single quotes or no quotes. It is often trial by error, but in this case the calculations for the score fields were running as expected and returning the correct values, so I did not know the single quotes were problematic.

Thanks again!

All comments

JoshuaSharp-Heward

Hi,

I've gone for a slightly different approach to the problem as I think with that many if/else if clauses it can be tricky to work out what's going on.

var RESF1Score = $feature.PR_RESF1_SCORE
var RESF2Score = $feature.PR_RESF2ENG_SCORE + $feature.PR_RESF2NAT_SCORE
var RESF3Score = $feature.PR_RESF3_SCORE

function isTwenty(i) { return i == 20 }

var num20s = Count(Filter([RESF1Score, RESF2Score, RESF3Score], isTwenty)
When(num20s==3,20,num20s==2, 10, num20s==1, 5, 0)

To summarise what this is doing:

Adds ENG/NAT together as one is filled in each time and the other is 0, for the purposes of this calculation I believe they can be lumped together because ENG and NAT are treated equally
Assigns a variable for the above plus the RESF1 and RESF3 score
Create a function that returns true if the input is equal to 20
Uses the Arcade Filter function with the list of scores from above, to get rid of any that aren't 20, and returns the count of the number of 20s
Uses the When function to return the 20 if there are 3 20s, 10 if there are 2, 5 if there's 1 and 0 if there are none

Hope this works for you! Seemed to be working fine in the Arcade playground for me.

Cheers,

Josh

LJackson29

Hi @JoshuaSharp-Heward -

Sorry for the slow reply, I am just getting back to this after getting pulled away on another project. I need to get the default values updated in my layer, and then I will see if this works.

Many thanks!

Leila

JoshuaSharp-Heward

Hi Leila,

No worries, let me know how you get on 🙂

Josh

LJackson29

@JoshuaSharp-Heward I was able to test your code today, and it too only returns 0 for some reason. I also tried a hybrid script posted below with the same result. It seems like all of these should work - I feel like I am missing something really obvious. I cleared the entire "Highest" field to Null to make sure there wasn't lingering data in there and that the scripts were actually calculating, and they are, just to 0 always. The score fields are all short integers.

Thanks!

Leila

Hybrid script

var RESF1Score = $feature.PR_RESF1_SCORE

var RESF2Score = $feature.PR_RESF2ENG_SCORE + $feature.PR_RESF2NAT_SCORE

var RESF3Score = $feature.PR_RESF3_SCORE

//all highest

if (RESF1Score==20 && RESF2Score==20 && RESF3Score==20) { //All highest

return 20;

//2 of 3 highest

} else if (RESF1Score==20 && RESF2Score==20 && RESF3Score!=20) { //RF1 and 2 highest

return 10;

} else if (RESF1Score==20 && RESF2Score!=20 && RESF3Score==20) { //RF1 and 3 highest

return 10;

} else if (RESF1Score!=20 && RESF2Score==20 && RESF3Score==20) { //RF2 and 3 highest

return 10;

//1 of 3 highest

} else if (RESF1Score==20 && RESF2Score!=20 && RESF3Score!=20) { //only RF1 highest

return 5;

} else if (RESF1Score!=20 && RESF2Score==20 && RESF3Score!=20) { //only RF2 highest

return 5;

} else if (RESF1Score!=20 && RESF2Score!=20 && RESF3Score==20) { //only RF3 highest

return 5;

//None are highest

} else if (RESF1Score!=20 && RESF2Score!=20 && RESF3Score!=20) { //none are highest

return 0;

}

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