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Update ChartComputator.java #520

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8 changes: 6 additions & 2 deletions hellocharts-library/src/lecho/lib/hellocharts/computator/ChartComputator.java
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Original file line number Diff line number Diff line change
Expand Up @@ -150,7 +150,11 @@ public float computeRawX(float valueX) {
public float computeRawY(float valueY) {
final float pixelOffset = (valueY - currentViewport.bottom) * (contentRectMinusAllMargins.height() /
currentViewport.height());
return contentRectMinusAllMargins.bottom - pixelOffset;
if(Float.isNaN(pixelOffset)){ // if currentViewport.height() == 0 for example the line inLineChart is not visiable.
return contentRectMinusAllMargins.bottom
}else{
return contentRectMinusAllMargins.bottom - pixelOffset;
}
}

/**
Expand Down Expand Up @@ -346,4 +350,4 @@ private void computeMinimumWidthAndHeight() {
minViewportHeight = this.maxViewport.height() / maxZoom;
}

}
}