/**
* Draws the direction triangle.
* @param drawingContext the drawing context
*/
private void drawDirection(DrawingContext drawingContext) {
ReadingDirection readingDirection =
((UmlRelation)association.getModelElement()).getNameReadingDirection();
if (readingDirection == ReadingDirection.LEFT_RIGHT) {
drawTriangleLeftRight(drawingContext);
} else if (readingDirection == ReadingDirection.RIGHT_LEFT) {
drawTriangleRightLeft(drawingContext);