private RenderEdge CreateEdge(PlacementEdge edge, ReferenceType types)
{
var(from, to) = RenderPosition(edge);
var verticalOffset = new Position(0, _config.Dimensions.Height / 2);
var horizontalOffset = new Position(_config.Dimensions.Width, 0);
if (edge.From.X <= edge.To.X)
{
from += horizontalOffset;
}
else
{
to += horizontalOffset;
}
from += verticalOffset;
to += verticalOffset;
var edgeLabel = from.X < to.X ? _config.EdgeLabel : _config.BackwardEdgeLabel;
var labelPosition = (from + to) / 2 + edgeLabel.Offset;
return(new RenderEdge(
from: from,
to: to,
types: types,
new RenderElement(labelPosition, edgeLabel.Dimensions)
));
}
private (Position From, Position To) RenderPosition(PlacementEdge edge)
{
var from = RenderPosition(edge.From, _config.Offsets, _config.Dimensions, _config.Intervals);
var to = RenderPosition(edge.To, _config.Offsets, _config.Dimensions, _config.Intervals);
return(from, to);
}