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bug4134_2: ColorMapper.getColor() returns minimum or maximum color if value is outside range.

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This commit is contained in:
Alessandro Stoltenberg
2018-08-21 11:13:07 +02:00
parent 1d8a1ec0a9
commit dfe8c36dac
1 changed files with 18 additions and 7 deletions
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java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/simulator/streamlets/ColorMapper.java
+18 -7
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@@ -35,17 +35,28 @@ public class ColorMapper implements ValueRangeFlexibleBoundariesChangedListener
/**
* Returns a string with a rgba representation of a the value mapped to the color spectrum in case {@link #isGrey}
* <c> = true </c> or the hsl representation of the color in case {@link #isGrey} <c> = false </c>. If called with a
* value outside the {@link #valueRange} the return will be <c>null</c>.
* value outside the {@link #valueRange} the return will be the minimum or the maximum of the spectrum, depending if
* the input value is smaller or greater then the {@link #minValue} or {@link #maxValue} of the {@link #valueRange}.
*/
public String getColor(double value) {
final String result;
if (value < minValue || value > maxValue) {
result = null;
} else if (isGrey) {
result = "rgba(255,255,255," + Math.min(1.0, (value - minValue) / (maxValue - minValue)) + ")";
if (isGrey) {
if (value < minValue) {
result = "rgba(255,255,255,0.0)";
} else if (value > maxValue) {
result = "rgba(255,255,255,1.0)";
} else {
result = "rgba(255,255,255," + Math.min(1.0, (value - minValue) / (maxValue - minValue)) + ")";
}
} else {
double h = (1 - (value - minValue) / (maxValue - minValue)) * 240;
result = "hsl(" + Math.round(h) + ", 100%, 50%)";
if (value < minValue) {
result = "hsl(0, 100%, 50%)";
} else if (value > maxValue) {
result = "hsl(240, 100%, 50%)";
} else {
double h = (1 - (value - minValue) / (maxValue - minValue)) * 240;
result = "hsl(" + Math.round(h) + ", 100%, 50%)";
}
}
return result;
}