QColor faceColor, edgeColor, nodeColor, elem0dColor, ballColor;
QColor orientationColor, outlineColor, volumeColor;
int deltaF = 0, deltaV = 0;
QColor faceColor, edgeColor, nodeColor, elem0dColor, ballColor;
QColor orientationColor, outlineColor, volumeColor;
int deltaF = 0, deltaV = 0;