#jarchi Color all assessment elements in the model according to a given property.

colorAssessments.ajs

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 

Script Name: colorAssessments
Purpose:     Color all assessment elements in the model according to a given property.
             Dependening on this property's value the color is set on a red-yellow-green scale.
             default values: property_name = "bewertung"; min_value = -10 (weak); max_value = 10 (strong)

Thomas Rischbeck, rischbeck@itmc.ch, (C) ITMC 2021

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

var verbose = false; 
var property_name = "bewertung";
var min_Value = -10; 
var max_Value = 10; 

colorAssessments();

function colorAssessments() {
	
    // Iterate through all assessment elements in the model
    $("element").filter("assessment").forEach(function(element) {
	
		var bewertung = element.prop(property_name);
		
		if (isNaN(bewertung) ) { 
			// do nothing
		} else {

            // map min_Value - max_Value to 1 - 100

            try {
                var bewInt = parseInt(bewertung);
                var colScale = 100 - (bewertung - min_Value)/(max_Value-min_Value)*100; 
                //var colScale = 100-((parseInt(bewertung) + 10) * 5);
                //console.log("> found " + element.name + " - bewertung: " + bewertung + " colscale: " + colScale);

                var fillColor = getColorOnRYGScale (colScale);
                $(element).objectRefs().attr("fillColor", fillColor); 
                $(element).objectRefs().attr("fontColor", 0); 
            } catch (error) {}
           
		}
    });
}


// get a color between red - yellow - green
// depending on the number (1-100)
function getColorOnRYGScale(n) {
	var red, green, blue; 
	if (n <= 50) green = 255; else green = Math.round(510 - (n*5.1));
	if (n <= 50) red = Math.round((n*5.1)); else red = 255; 
	blue = 0; 

	if (verbose) console.log(n, red, green, blue);

	return convertRGBToHexString(red, green, blue);
}



// Helper function - convert rgb values to a hex color string. Format is #rrggbb
function convertRGBToHexString(red, green, blue) {
    red = red.toString(16);
    if(red.length == 1) red = "0" + red;

    green = green.toString(16);
    if(green.length == 1) green = "0" + green;

    blue = blue.toString(16);
    if(blue.length == 1) blue = "0" + blue;

    return '#' + red + green + blue;
}