Boxes: Bar Scale Optimisation

plugins/processing/simple-visualization/src/box-algorithms/ovpCGrazMultiVisualization.cpp

@@ -383,9 +383,12 @@ void CGrazMultiVisualization::aggregatePredictions(const bool all)
 		}
 		for (const auto& a : amp) { sum += a; }
 		// Computes bar scale for each modality as a probability (other possibility substract the min/max value or the mean of the values)
+		// Then we put this probability between 0-1 to 0-1 but when 0 is equal to 1/m_nbModality 
+		const double minV = 1.0 / m_nbModality, 
+					 factorV = 1.0 / (1 - minV);
 		for (size_t i = 0; i < amp.size(); ++i)
 		{
-			m_barScales[i] = amp[i] / sum;
+			m_barScales[i] = (amp[i] / sum - minV) * factorV;
 			if (amp[m_vote] < amp[i]) { m_vote = i; }
 		}
 	}