public static void CreateStraightDimension(double distance)
{
PointList pointList = new PointList();
ViewBase view;
Point firstPoint;
Point SecondPoint;
Picker picker = new DrawingHandler().GetPicker();
picker.PickTwoPoints("Pick first point", "Pick second point", out firstPoint, out SecondPoint, out view);
pointList.Add(firstPoint);
pointList.Add(SecondPoint);
Vector direction = new Vector(firstPoint.Y - SecondPoint.Y, SecondPoint.X - firstPoint.X, firstPoint.Z);
StraightDimensionSet sds = new StraightDimensionSetHandler().CreateDimensionSet(view, pointList, direction, distance);
sds.Attributes.LeftLowerTag.Add(new TextElement("LeftLow"));
sds.Attributes.LeftMiddleTag.Add(new TextElement("LeftMiddle"));
sds.Attributes.LeftUpperTag.Add(new TextElement("LeftUpper"));
sds.Attributes.RightLowerTag.Add(new TextElement("RightLow"));
sds.Attributes.RightMiddleTag.Add(new TextElement("RightMiddle"));
sds.Attributes.RightUpperTag.Add(new TextElement("RightUpper"));
bool isOk = sds.Modify();
}