Added option to set restrictions for Y axis autoscaling.
diff --git a/MPChartLib/src/main/java/com/github/mikephil/charting/components/YAxis.java b/MPChartLib/src/main/java/com/github/mikephil/charting/components/YAxis.java
index e84caab..c572e30 100644
--- a/MPChartLib/src/main/java/com/github/mikephil/charting/components/YAxis.java
+++ b/MPChartLib/src/main/java/com/github/mikephil/charting/components/YAxis.java
@@ -39,6 +39,27 @@
protected boolean mDrawZeroLine = false;
/**
+ * flag indicating that auto scale min restriction should be used
+ */
+
+ private boolean mUseAutoScaleRestrictionMin = false;
+ /**
+ * flag indicating that auto scale max restriction should be used
+ */
+
+ private boolean mUseAutoScaleRestrictionMax = false;
+ /**
+ * restriction value of autoscale min
+ */
+
+ private float mAutoScaleMinRestriction = 0f;
+
+ /**
+ * restriction value of autoscale max
+ */
+ private float mAutoScaleMaxRestriction = 0f;
+
+ /**
* Color of the zero line
*/
protected int mZeroLineColor = Color.GRAY;
@@ -357,12 +378,54 @@
return false;
}
+ /**
+ * Sets min value restriction for autoscale
+ */
+ public void setAutoScaleMinRestriction(float restrictionValue) {
+ mUseAutoScaleRestrictionMin = true;
+ mAutoScaleMinRestriction = restrictionValue;
+ }
+
+ /**
+ * Sets max value restriction for autoscale
+ */
+ public void setAutoScaleMaxRestriction(float restrictionValue) {
+ mUseAutoScaleRestrictionMax = true;
+ mAutoScaleMaxRestriction = restrictionValue;
+ }
+
+ /**
+ * Resets min value restriction for autoscale
+ */
+ public void resetAutoScaleMinRestriction() {
+ mUseAutoScaleRestrictionMin = false;
+ }
+
+ /**
+ * Resets max value restriction for autoscale
+ */
+ public void resetAutoScaleMaxRestriction() {
+ mUseAutoScaleRestrictionMax = false;
+ }
+
@Override
public void calculate(float dataMin, float dataMax) {
+ float min = dataMin;
+ float max = dataMax;
+
// if custom, use value as is, else use data value
- float min = mCustomAxisMin ? mAxisMinimum : dataMin;
- float max = mCustomAxisMax ? mAxisMaximum : dataMax;
+ if( mCustomAxisMin ) {
+ min = mAxisMinimum;
+ } else if( mUseAutoScaleRestrictionMin ) {
+ min = Math.min( min, mAutoScaleMinRestriction );
+ }
+
+ if( mCustomAxisMax ) {
+ max = mAxisMaximum;
+ } else if( mUseAutoScaleRestrictionMax ) {
+ max = Math.max( max, mAutoScaleMaxRestriction );
+ }
// temporary range (before calculations)
float range = Math.abs(max - min);
