static internal void DrawEdge(Graphics graphics, DEdge dEdge, bool drawLabel)
{
DrawingEdge drawingEdge = dEdge.DrawingEdge;
if (drawingEdge.Attr.GeometryEdge == null)
{
return;
}
if (dEdge.GraphicsPath == null)
{
Draw.CreateGraphicsPath(dEdge);
}
EdgeAttr attr = drawingEdge.Attr;
using (Pen myPen = new Pen(dEdge.Color, attr.LineWidth)) {
foreach (Style style in attr.Styles)
{
Draw.AddStyleForPen(dEdge, myPen, style);
}
try {
graphics.DrawPath(myPen, dEdge.GraphicsPath);
} catch {
// sometimes on Vista it's just throws an out of memory exception without any obvious reason
}
Draw.DrawEdgeArrows(graphics, drawingEdge, dEdge.Color, myPen);
}
if (drawLabel)
{
Draw.DrawLabel(graphics, dEdge.Label);
}
}
internal static DGraph CreateDGraphAndGeometryInfo(DrawingGraph drawingGraph, GeometryGraph gleeGraph)
{
DGraph ret = new DGraph(drawingGraph);
//create dnodes and glee node boundary curves
foreach (GeometryNode geomNode in gleeGraph.NodeMap.Values)
{
DrawingNode drawingNode = geomNode.UserData as DrawingNode;
CreateDNodeAndSetNodeBoundaryCurve(drawingGraph, ret, geomNode, drawingNode);
}
foreach (GeometryEdge gleeEdge in gleeGraph.Edges)
{
DEdge dEdge = new DEdge(ret.GetNode(gleeEdge.Source), ret.GetNode(gleeEdge.Target), gleeEdge.UserData as DrawingEdge, Connection.Connected);
ret.AddEdge(dEdge);
DrawingEdge drawingEdge = dEdge.Edge;
Microsoft.Msagl.Drawing.Label label = drawingEdge.Label;
if (label != null)
{
double width, height;
CreateDLabel(dEdge, label, out width, out height);
}
}
return(ret);
}
static BBNode BuildBBHierarchyUnderDObject(DObject dObject)
{
DNode dNode = dObject as DNode;
if (dNode != null)
{
return(BuildBBHierarchyUnderDNode(dNode));
}
DEdge dedge = dObject as DEdge;
if (dedge != null)
{
return(BuildBBHierarchyUnderDEdge(dedge));
}
DLabel dLabel = dObject as DLabel;
if (dLabel != null)
{
return(BuildBBHierarchyUnderDLabel(dLabel));
}
DGraph dGraph = dObject as DGraph;
if (dGraph != null)
{
dGraph.BbNode.bBox = dGraph.DrawingGraph.BoundingBox;
return(dGraph.BbNode);
}
throw new InvalidOperationException();
}
internal static List <ObjectWithBox> TessellateCurve(DEdge dedge, double radiusForUnderlyingPolylineCorners)
{
DrawingEdge edge = dedge.DrawingEdge;
ICurve bc = edge.EdgeCurve;
double lineWidth = edge.Attr.LineWidth;
var ret = new List <ObjectWithBox>();
int n = 1;
bool done;
do
{
double d = (bc.ParEnd - bc.ParStart) / n;
done = true;
if (n <= 64) //don't break a segment into more than 64 parts
{
for (int i = 0; i < n; i++)
{
if (!WithinEpsilon(bc, d * i, d * (i + 1)))
{
n *= 2;
done = false;
break;
}
}
}
} while (!done);
double del = (bc.ParEnd - bc.ParStart) / n;
for (int j = 0; j < n; j++)
{
var line = new Line(dedge, bc[del * j], bc[del * (j + 1)], lineWidth);
ret.Add(line);
}
//if (dedge.Label != null)
// ret.Add(new LabelGeometry(dedge.Label, edge.Label.Left,
// edge.Label.Bottom, new P2(edge.Label.Size.Width, edge.Label.Size.Height)));
if (edge.Attr.ArrowAtTarget)
{
ret.Add(new Line(dedge, edge.EdgeCurve.End, edge.ArrowAtTargetPosition, edge.Attr.LineWidth));
}
if (edge.Attr.ArrowAtSource)
{
ret.Add(new Line(dedge, edge.EdgeCurve.Start, edge.ArrowAtSourcePosition, edge.Attr.LineWidth));
}
if (radiusForUnderlyingPolylineCorners > 0)
{
AddUnderlyingPolylineTessellation(ret, dedge, radiusForUnderlyingPolylineCorners);
}
return(ret);
}
internal void DrawGraph(Graphics g)
{
#region drawing of database for debugging only
#if DEBUGGLEE
Pen myPen = new Pen(System.Drawing.Color.Blue, (float)(1 / 1000.0));
DrawingGraph dg = this.DrawingGraph;
if (dg.DataBase != null)
{
Draw.DrawDataBase(g, myPen, dg);
}
bool debugDrawing = Draw.DrawDebugStuff(g, this, myPen);
if (debugDrawing)
{
return;
}
#endif
#endregion
if (this.drawingGraph.Attr.Border > 0)
{
DrawGraphBorder(this.drawingGraph.Attr.Border, g);
}
bool renderEdgeLabels = this.EdgeLabelsAreRendered;
//we need to draw the edited edges last
DEdge dEdgeSelectedForEditing = null;
foreach (DEdge dEdge in Edges)
{
if (!dEdge.SelectedForEditing)
{
DrawEdge(g, dEdge, renderEdgeLabels);
}
else //there must be no more than one edge selected for editing
{
dEdgeSelectedForEditing = dEdge;
}
}
foreach (DNode dnode in nodeMap.Values)
{
DrawNode(g, dnode);
}
//draw the selected edge
if (dEdgeSelectedForEditing != null)
{
DrawEdge(g, dEdgeSelectedForEditing, renderEdgeLabels);
DrawUnderlyingPolyline(g, dEdgeSelectedForEditing);
}
}
static BBNode BuildBBHierarchyUnderDEdge(DEdge dEdge)
{
if (dEdge.DrawingEdge.GeometryObject == null ||
dEdge.Edge.GeometryEdge.Curve == null)
{
return(null);
}
List <ObjectWithBox> geometries = Tessellator.TessellateCurve(dEdge,
dEdge.MarkedForDragging
? dEdge.RadiusOfPolylineCorner
: 0);
return(SpatialAlgorithm.CreateBBNodeOnGeometries(geometries));
}
static void AddUnderlyingPolylineTessellation(List <ObjectWithBox> list, DEdge edge,
double radiusForUnderlyingPolylineCorners)
{
var rad = new P2(radiusForUnderlyingPolylineCorners, radiusForUnderlyingPolylineCorners);
IEnumerator <P2> en = edge.DrawingEdge.GeometryEdge.UnderlyingPolyline.GetEnumerator();
en.MoveNext();
P2 p = en.Current;
list.Add(new Geometry(edge, new BBox(p + rad, p - rad)));
while (en.MoveNext())
{
list.Add(new Line(edge, p, p = en.Current, edge.DrawingEdge.Attr.LineWidth));
list.Add(new Geometry(edge, new BBox(p + rad, p - rad)));
}
}
internal static List<ObjectWithBox> TessellateCurve(DEdge dedge, double radiusForUnderlyingPolylineCorners) {
DrawingEdge edge = dedge.DrawingEdge;
ICurve bc = edge.EdgeCurve;
double lineWidth = edge.Attr.LineWidth;
var ret = new List<ObjectWithBox>();
int n = 1;
bool done;
do {
double d = (bc.ParEnd - bc.ParStart)/n;
done = true;
if (n <= 64) //don't break a segment into more than 64 parts
for (int i = 0; i < n; i++) {
if (!WithinEpsilon(bc, d*i, d*(i + 1))) {
n *= 2;
done = false;
break;
}
}
} while (!done);
double del = (bc.ParEnd - bc.ParStart)/n;
for (int j = 0; j < n; j++) {
var line = new Line(dedge, bc[del*j], bc[del*(j + 1)], lineWidth);
ret.Add(line);
}
//if (dedge.Label != null)
// ret.Add(new LabelGeometry(dedge.Label, edge.Label.Left,
// edge.Label.Bottom, new P2(edge.Label.Size.Width, edge.Label.Size.Height)));
if (edge.Attr.ArrowAtTarget)
ret.Add(new Line(dedge, edge.EdgeCurve.End, edge.ArrowAtTargetPosition, edge.Attr.LineWidth));
if (edge.Attr.ArrowAtSource)
ret.Add(new Line(dedge, edge.EdgeCurve.Start, edge.ArrowAtSourcePosition, edge.Attr.LineWidth));
if (radiusForUnderlyingPolylineCorners > 0)
AddUnderlyingPolylineTessellation(ret, dedge, radiusForUnderlyingPolylineCorners);
return ret;
}
static void DrawUnderlyingPolyline(Graphics g, DEdge editedEdge)
{
Microsoft.Msagl.UnderlyingPolyline points = editedEdge.DrawingEdge.Attr.GeometryEdge.UnderlyingPolyline;
Pen pen = new Pen(editedEdge.Color, editedEdge.DrawingEdge.Attr.LineWidth);
IEnumerator <P2> en = points.GetEnumerator();
en.MoveNext();
PointF p = P2P(en.Current);
while (en.MoveNext())
{
g.DrawLine(pen, p, p = P2P(en.Current));
}
foreach (P2 p2 in points)
{
DrawCircleAroungPolylineCorner(g, p2, pen, editedEdge.RadiusOfPolylineCorner);
}
}
internal static DGraph CreateDGraphAndGeometryInfo(Graph drawingGraph, GeometryGraph geometryGraph,
GViewer viewer)
{
var dGraph = new DGraph(drawingGraph, viewer);
//create dnodes and glee node boundary curves
var nodeMapping = new Dictionary <GeometryNode, DNode>();
if (geometryGraph.RootCluster != null)
{
foreach (var geomCluster in geometryGraph.RootCluster.AllClustersDepthFirstExcludingSelf())
{
var drawingNode = (Drawing.Node)geomCluster.UserData;
DNode dNode = CreateDNodeAndSetNodeBoundaryCurveForSubgraph(drawingGraph, dGraph, geomCluster,
drawingNode, viewer);
nodeMapping[geomCluster] = dNode;
}
}
foreach (GeometryNode geomNode in geometryGraph.Nodes)
{
var drawingNode = (Drawing.Node)geomNode.UserData;
DNode dNode = CreateDNodeAndSetNodeBoundaryCurve(drawingGraph, dGraph, geomNode, drawingNode, viewer);
nodeMapping[geomNode] = dNode;
}
foreach (GeometryEdge gleeEdge in geometryGraph.Edges)
{
var dEdge = new DEdge(nodeMapping[gleeEdge.Source], nodeMapping[gleeEdge.Target],
gleeEdge.UserData as DrawingEdge, ConnectionToGraph.Connected, viewer);
dGraph.AddEdge(dEdge);
DrawingEdge drawingEdge = dEdge.Edge;
Drawing.Label label = drawingEdge.Label;
if (label != null)
{
double width, height;
CreateDLabel(dEdge, label, out width, out height, viewer);
}
}
return(dGraph);
}
static void DrawUnderlyingPolyline(Graphics g, DEdge editedEdge)
{
SmoothedPolyline underlyingPolyline = editedEdge.DrawingEdge.GeometryEdge.UnderlyingPolyline;
if (underlyingPolyline != null)
{
var pen = new Pen(editedEdge.Color, (float)editedEdge.DrawingEdge.Attr.LineWidth);
IEnumerator <P2> en = underlyingPolyline.GetEnumerator();
en.MoveNext();
PointF p = P2P(en.Current);
while (en.MoveNext())
{
g.DrawLine(pen, p, p = P2P(en.Current));
}
foreach (P2 p2 in underlyingPolyline)
{
DrawCircleAroungPolylineCorner(g, p2, pen, editedEdge.RadiusOfPolylineCorner);
}
}
}
internal static void CreateGraphicsPath(DEdge dedge)
{
DrawingEdge edge = dedge.DrawingEdge;
dedge.GraphicsPath = new GraphicsPath();
Curve c = edge.Attr.EdgeCurve as Curve;
if (c != null)
{
foreach (ICurve seg in c.Segments)
{
CubicBezierSegment cubic = seg as CubicBezierSegment;
if (cubic != null)
{
dedge.GraphicsPath.AddBezier(PointF(cubic.B(0)), PointF(cubic.B(1)), PointF(cubic.B(2)), PointF(cubic.B(3)));
}
else
{
LineSegment ls = seg as LineSegment;
dedge.GraphicsPath.AddLine(PointF(ls.Start), PointF(ls.End));
}
}
}
else
{
LineSegment ls = edge.Attr.EdgeCurve as LineSegment;
if (ls != null)
{
dedge.GraphicsPath.AddLine(PointF(ls.Start), PointF(ls.End));
}
else
{
CubicBezierSegment seg = (CubicBezierSegment)edge.Attr.EdgeCurve;
dedge.GraphicsPath.AddBezier(PointF(seg.B(0)), PointF(seg.B(1)), PointF(seg.B(2)), PointF(seg.B(3)));
}
}
}
IEnumerable <DObject> RelatedObjs(DObject dObj)
{
yield return(dObj);
DNode dNode = dObj as DNode;
if (dNode != null)
{
foreach (DEdge e in dNode.OutEdges)
{
yield return(e);
}
foreach (DEdge e in dNode.InEdges)
{
yield return(e);
}
foreach (DEdge e in dNode.SelfEdges)
{
yield return(e);
}
}
else
{
DEdge dEdge = dObj as DEdge;
if (dEdge != null)
{
yield return(dEdge.Source);
yield return(dEdge.Target);
if (dEdge.Label != null)
{
yield return(dEdge.Label);
}
}
}
}
internal void AddSelfEdge(DEdge edge) {
selfEdges.Add(edge);
}
void AddEdge(DEdge dEdge)
{
edges.Add(dEdge);
}
internal void RemoveOutEdge(DEdge de) {
outEdges.Remove(de);
}
internal void RemoveInEdge(DEdge de) {
inEdges.Remove(de);
}
void AddEdge(DEdge dEdge){
edges.Add(dEdge);
}
internal static DGraph CreateDGraphAndGeometryInfo(Graph drawingGraph, GeometryGraph geometryGraph,
GViewer viewer) {
var dGraph = new DGraph(drawingGraph, viewer);
//create dnodes and glee node boundary curves
var nodeMapping = new Dictionary<GeometryNode, DNode>();
if (geometryGraph.RootCluster != null)
foreach (var geomCluster in geometryGraph.RootCluster.AllClustersDepthFirstExcludingSelf()) {
var drawingNode = (Drawing.Node) geomCluster.UserData;
DNode dNode = CreateDNodeAndSetNodeBoundaryCurveForSubgraph(drawingGraph, dGraph, geomCluster,
drawingNode, viewer);
nodeMapping[geomCluster] = dNode;
}
foreach (GeometryNode geomNode in geometryGraph.Nodes) {
var drawingNode = (Drawing.Node) geomNode.UserData;
DNode dNode = CreateDNodeAndSetNodeBoundaryCurve(drawingGraph, dGraph, geomNode, drawingNode, viewer);
nodeMapping[geomNode] = dNode;
}
foreach (GeometryEdge gleeEdge in geometryGraph.Edges) {
var dEdge = new DEdge(nodeMapping[gleeEdge.Source], nodeMapping[gleeEdge.Target],
gleeEdge.UserData as DrawingEdge, ConnectionToGraph.Connected, viewer);
dGraph.AddEdge(dEdge);
DrawingEdge drawingEdge = dEdge.Edge;
Drawing.Label label = drawingEdge.Label;
if (label != null) {
double width, height;
CreateDLabel(dEdge, label, out width, out height, viewer);
}
}
return dGraph;
}
internal void RemoveSelfEdge(DEdge de) {
selfEdges.Remove(de);
}
internal void RemoveInEdge(DEdge de)
{
inEdges.Remove(de);
}
internal void AddInEdge(DEdge edge) {
inEdges.Add(edge);
}
internal static void DrawEdge(Graphics graphics, DEdge dEdge)
{
DrawingEdge drawingEdge = dEdge.DrawingEdge;
if (!drawingEdge.IsVisible || drawingEdge.GeometryEdge == null)
{
return;
}
DrawingEdge edge = dEdge.DrawingEdge;
if (edge.DrawEdgeDelegate != null)
{
if (edge.DrawEdgeDelegate(edge, graphics))
{
return; //the client draws instead
}
}
if (dEdge.GraphicsPath == null)
{
dEdge.GraphicsPath = Draw.CreateGraphicsPath(dEdge.Edge.GeometryEdge.Curve);
}
EdgeAttr attr = drawingEdge.Attr;
using (var myPen = new Pen(dEdge.Color, (float)attr.LineWidth))
{
foreach (Style style in attr.Styles)
{
Draw.AddStyleForPen(dEdge, myPen, style);
}
try
{
if (dEdge.GraphicsPath != null)
{
graphics.DrawPath(myPen, dEdge.GraphicsPath);
}
}
catch
{
// sometimes on Vista it throws an out of memory exception without any obvious reason
}
Draw.DrawEdgeArrows(graphics, drawingEdge, dEdge.Color, myPen);
if (dEdge.DrawingEdge.GeometryEdge.Label != null)
{
Draw.DrawLabel(graphics, dEdge.Label);
}
#if TEST_MSAGL
if (DrawControlPoints)
{
ICurve iCurve = dEdge.DrawingEdge.GeometryEdge.Curve;
var c = iCurve as Curve;
if (c != null)
{
foreach (ICurve seg in c.Segments)
{
var cubic = seg as CubicBezierSegment;
if (cubic != null)
{
Draw.DrawControlPoints(graphics, cubic);
}
}
}
else
{
var seg = iCurve as CubicBezierSegment;
if (seg != null)
{
Draw.DrawControlPoints(graphics, seg);
}
}
}
#endif
}
}
/// <summary>
/// routes an edge and returns the corresponding edge of the viewer
/// </summary>
/// <returns></returns>
public IViewerEdge RouteEdge(DrawingEdge drawingEdge)
{
drawingEdge.Label = new Label();
Edge geometryEdge = drawingEdge.GeometryEdge = new Edge();
if (drawingEdge.Attr.ArrowheadAtSource != ArrowStyle.NonSpecified &&
drawingEdge.Attr.ArrowheadAtSource != ArrowStyle.None)
geometryEdge.EdgeGeometry.SourceArrowhead = new Arrowhead {Length = drawingEdge.Attr.ArrowheadLength};
if (drawingEdge.Attr.ArrowheadAtSource != ArrowStyle.None)
geometryEdge.EdgeGeometry.TargetArrowhead = new Arrowhead {Length = drawingEdge.Attr.ArrowheadLength};
geometryEdge.GeometryParent = Graph.GeometryGraph;
geometryEdge.Source = drawingEdge.SourceNode.GeometryNode;
geometryEdge.Target = drawingEdge.TargetNode.GeometryNode;
geometryEdge.SourcePort = drawingEdge.SourcePort;
geometryEdge.TargetPort = drawingEdge.TargetPort;
LayoutHelpers.RouteAndLabelEdges(this.Graph.GeometryGraph, Graph.LayoutAlgorithmSettings,
new[] {geometryEdge});
var dEdge = new DEdge(DGraph.FindDNode(drawingEdge.SourceNode.Id), DGraph.FindDNode(drawingEdge.TargetNode.Id),
drawingEdge, ConnectionToGraph.Disconnected, this);
dEdge.Label = new DLabel(dEdge, new Label(), this);
return dEdge;
}
/// <summary>
/// drawing edge already has its geometry in place
/// </summary>
/// <param name="drawingEdge"></param>
/// <returns></returns>
public IViewerEdge CreateEdgeWithGivenGeometry(DrawingEdge drawingEdge)
{
drawingEdge.Label = new Label();
Edge geometryEdge = drawingEdge.GeometryEdge;
Debug.Assert(geometryEdge != null);
geometryEdge.GeometryParent = Graph.GeometryGraph;
var dEdge = new DEdge(DGraph.FindDNode(drawingEdge.SourceNode.Id), DGraph.FindDNode(drawingEdge.TargetNode.Id),
drawingEdge, ConnectionToGraph.Disconnected, this);
dEdge.Label = new DLabel(dEdge, new Label(), this);
return dEdge;
}
internal void DrawGraph(Graphics g)
{
#region drawing of database for debugging only
#if TEST_MSAGL
Graph dg = DrawingGraph;
if (dg.DataBase != null)
{
var myPen = new Pen(Color.Blue, (float)(1 / 1000.0));
Draw.DrawDataBase(g, myPen, dg);
}
if (NeedToDrawDebugStuff())
{
var myPen = new Pen(Color.Blue, (float)(1 / 1000.0));
Draw.DrawDebugStuff(g, this, myPen);
}
#endif
#endregion
if (drawingGraph.Attr.Border > 0)
{
DrawGraphBorder(drawingGraph.Attr.Border, g);
}
//we need to draw the edited edges last
DEdge dEdgeSelectedForEditing = null;
foreach (var subgraph in drawingGraph.RootSubgraph.AllSubgraphsWidthFirstExcludingSelf())
{
DrawNode(g, nodeMap[subgraph.Id]);
}
foreach (DEdge dEdge in Edges)
{
if (!dEdge.SelectedForEditing)
{
DrawEdge(g, dEdge);
}
else //there must be no more than one edge selected for editing
{
dEdgeSelectedForEditing = dEdge;
}
}
foreach (DNode dnode in nodeMap.Values)
{
if (!(dnode.DrawingNode is Subgraph))
{
DrawNode(g, dnode);
}
}
//draw the selected edge
if (dEdgeSelectedForEditing != null)
{
DrawEdge(g, dEdgeSelectedForEditing);
DrawUnderlyingPolyline(g, dEdgeSelectedForEditing);
}
if (Viewer.SourcePortIsPresent)
{
DrawPortAtLocation(g, Viewer.SourcePortLocation);
}
if (Viewer.TargetPortIsPresent)
{
DrawPortAtLocation(g, Viewer.TargetPortLocation);
}
}
internal void AddOutEdge(DEdge edge)
{
outEdges.Add(edge);
}
internal static void DrawEdge(Graphics graphics, DEdge dEdge){
DrawingEdge drawingEdge = dEdge.DrawingEdge;
if (!drawingEdge.IsVisible || drawingEdge.GeometryEdge == null)
return;
DrawingEdge edge = dEdge.DrawingEdge;
if (edge.DrawEdgeDelegate != null)
if (edge.DrawEdgeDelegate(edge, graphics))
return; //the client draws instead
if (dEdge.GraphicsPath == null)
dEdge.GraphicsPath = Draw.CreateGraphicsPath(dEdge.Edge.GeometryEdge.Curve);
EdgeAttr attr = drawingEdge.Attr;
using (var myPen = new Pen(dEdge.Color, (float)attr.LineWidth)){
foreach (Style style in attr.Styles){
Draw.AddStyleForPen(dEdge, myPen, style);
}
try{
if (dEdge.GraphicsPath != null)
graphics.DrawPath(myPen, dEdge.GraphicsPath);
}
catch{
// sometimes on Vista it throws an out of memory exception without any obvious reason
}
Draw.DrawEdgeArrows(graphics, drawingEdge, dEdge.Color, myPen);
if (dEdge.DrawingEdge.GeometryEdge.Label != null)
Draw.DrawLabel(graphics, dEdge.Label);
#if TEST_MSAGL
if (DrawControlPoints){
ICurve iCurve = dEdge.DrawingEdge.GeometryEdge.Curve;
var c = iCurve as Curve;
if (c != null){
foreach (ICurve seg in c.Segments){
var cubic = seg as CubicBezierSegment;
if (cubic != null)
Draw.DrawControlPoints(graphics, cubic);
}
}
else{
var seg = iCurve as CubicBezierSegment;
if (seg != null)
Draw.DrawControlPoints(graphics, seg);
}
}
#endif
}
}
internal void AddSelfEdge(DEdge edge)
{
selfEdges.Add(edge);
}
internal void AddOutEdge(DEdge edge) {
outEdges.Add(edge);
}
internal void AddInEdge(DEdge edge)
{
inEdges.Add(edge);
}
static BBNode BuildBBHierarchyUnderDEdge(DEdge dEdge){
if (dEdge.DrawingEdge.GeometryObject == null ||
dEdge.Edge.GeometryEdge.Curve == null)
return null;
List<ObjectWithBox> geometries = Tessellator.TessellateCurve(dEdge,
dEdge.MarkedForDragging
? dEdge.RadiusOfPolylineCorner
: 0);
return SpatialAlgorithm.CreateBBNodeOnGeometries(geometries);
}
internal void RemoveOutEdge(DEdge de)
{
outEdges.Remove(de);
}
static void DrawUnderlyingPolyline(Graphics g, DEdge editedEdge){
SmoothedPolyline underlyingPolyline = editedEdge.DrawingEdge.GeometryEdge.UnderlyingPolyline;
if (underlyingPolyline != null){
var pen = new Pen(editedEdge.Color, (float)editedEdge.DrawingEdge.Attr.LineWidth);
IEnumerator<P2> en = underlyingPolyline.GetEnumerator();
en.MoveNext();
PointF p = P2P(en.Current);
while (en.MoveNext())
g.DrawLine(pen, p, p = P2P(en.Current));
foreach (P2 p2 in underlyingPolyline)
DrawCircleAroungPolylineCorner(g, p2, pen, editedEdge.RadiusOfPolylineCorner);
}
}
internal void RemoveSelfEdge(DEdge de)
{
selfEdges.Remove(de);
}
static void AddUnderlyingPolylineTessellation(List<ObjectWithBox> list, DEdge edge,
double radiusForUnderlyingPolylineCorners) {
var rad = new P2(radiusForUnderlyingPolylineCorners, radiusForUnderlyingPolylineCorners);
IEnumerator<P2> en = edge.DrawingEdge.GeometryEdge.UnderlyingPolyline.GetEnumerator();
en.MoveNext();
P2 p = en.Current;
list.Add(new Geometry(edge, new BBox(p + rad, p - rad)));
while (en.MoveNext()) {
list.Add(new Line(edge, p, p = en.Current, edge.DrawingEdge.Attr.LineWidth));
list.Add(new Geometry(edge, new BBox(p + rad, p - rad)));
}
}