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ColorMappingForScalarContainer.java
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ColorMappingForScalarContainer.java
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package org.osmdroid.views.overlay.advancedpolyline;
import java.util.ArrayList;
import java.util.List;
/**
* Scalar container on top of any ColorMappingForScalar
* Typical use:
* * create the {@link ColorMappingForScalar} you need
* * create a ColorMappingForScalarContainer on top of it
* * add your scalars to the container
* If you need to adjust your color mapping because you have a better idea of the actual scalar range
* * first adjust the settings
* (e.g. with {@link ColorMappingVariation#init(float, float, float, float)})
* * then call {@link #refresh()} and the colors ({@link ColorMapping#getColorForIndex(int)})
* will reflect the new set-up
* cf. https://github.com/osmdroid/osmdroid/issues/1551
*
* @author Fabrice Fontaine
* @since 6.1.7
*/
public class ColorMappingForScalarContainer {
private final ColorMappingForScalar mInnerMapping;
private final List<Float> mScalars = new ArrayList<>();
private float mScalarMin = Float.MAX_VALUE;
private float mScalarMax = Float.MIN_VALUE;
public ColorMappingForScalarContainer(final ColorMappingForScalar pInnerMapping) {
mInnerMapping = pInnerMapping;
}
public ColorMappingForScalar getMappingForScalar() {
return mInnerMapping;
}
public int size() {
return mScalars.size();
}
public float getScalarMin() {
return mScalarMin;
}
public float getScalarMax() {
return mScalarMax;
}
public void add(final float pScalar) {
mInnerMapping.add(pScalar);
mScalars.add(pScalar);
if (mScalarMin > pScalar) {
mScalarMin = pScalar;
}
if (mScalarMax < pScalar) {
mScalarMax = pScalar;
}
}
public void refresh() {
int i = 0;
for (final float scalar : mScalars) {
mInnerMapping.set(i, scalar);
i++;
}
}
}