public Edit2DGraph()
{
// This is a trick to get code to show up when pasting into typescript.
// Because this method is extracted from the class by a program that skips the top of the file
// the #define won't be picked up. At the same time when the typescript paste occurs the
// compiler will evaluate the #define and generate the 'else', which will be appropriate for javascript.
#if DOTNET
#else
super();
#endif
// Create the layer list
Edit2dGraphLayerList = new List <Edit2DGraphLayer>();
// We would like to just call pushlayer() here, but it calls DrawShapes and that environment isn't set up
Edit2DGraphLayer oNewLayer = new Edit2DGraphLayer();
Edit2dGraphLayerList.Add(oNewLayer);
MostRecentlySelectedLayer = oNewLayer;
HorizontalScale = 1;
VerticalScale = 1;
bShowHandles = true;
// set handle size
HandleSize = 20;
// By default allow vertices to merge
AllowVertexMerge = 1;
}
public Edge FindEdgeWithHoleGroupID(string HoleGroupID)
{
for (int i = 0; i < Edit2dGraphLayerList.Count; i++)
{
Edit2DGraphLayer oLayer = Edit2dGraphLayerList.GetFrom(i);
for (int j = 0; j < oLayer.EdgeList.Count; j++)
{
Edge oEdge = oLayer.EdgeList.GetFrom(j);
if (oEdge.HoleGroupID == HoleGroupID)
{
return(oEdge);
}
}
}
return(null);
}
public void DrawShapes_Layer(Edit2DGraphLayer oLayer, bool IsCurrentLayer, bool bShowHandles)
{
// Draw the edges
for (int i = 0; i < oLayer.EdgeList.Count; i++)
{
// Get screen From and To
Edge oEdge = oLayer.EdgeList.GetFrom(i);
bool bIsCurrentEdge = oEdge == oLayer.MostRecentlySelectedEdge;
PointF ScreenFrom = oLayer.GetPointFromIndex(oEdge.p1);
ScreenFrom = this.W2S(ScreenFrom.X, ScreenFrom.Y);
PointF ScreenTo = oLayer.GetPointFromIndex(oEdge.p2);
ScreenTo = this.W2S(ScreenTo.X, ScreenTo.Y);
// If this is the current layer draw the handles
if (IsCurrentLayer && bShowHandles)
{
// Get the center point of this edge
PointF WorldEdgeCenter = oLayer.EdgeCenter(oEdge);
PointF ScreenEdgeCenterFrom = this.W2S(WorldEdgeCenter.X, WorldEdgeCenter.Y);
// Get the normal. This points to the 'front'. The front of the panel will
// be where holes are laid out, left to right, while facing it.
float dx = ScreenFrom.X - ScreenTo.X;
float dy = ScreenFrom.Y - ScreenTo.Y;
SVector2 normal = new SVector2(dy, -dx);
SVector2 n2 = SVector2.Normalize(normal);
SVector2 n3 = SVector2.Scale(n2, 20);
// Draw a line at this normal -dy,dx from the center
PointF ScreenEdgeCenterTo = new PointF(ScreenEdgeCenterFrom.X + n3.X, ScreenEdgeCenterFrom.Y + n3.Y);
this.DrawLine("#ff0000", 1, ScreenEdgeCenterFrom, ScreenEdgeCenterTo);
// Draw handles
string color = "rgba(255,0,0,.5)";
if (oLayer.MostRecentlySelectedVertex != null && oEdge.p1 == oLayer.MostRecentlySelectedVertex.Index)
{
color = "rgba(0,0,255,1)";
}
this.DrawCircle(color, HandleSize, ScreenFrom.X, ScreenFrom.Y);
color = "rgba(255,0,0,.5)";
if (oLayer.MostRecentlySelectedVertex != null && oEdge.p2 == oLayer.MostRecentlySelectedVertex.Index)
{
color = "rgba(0,0,255,1)";
}
this.DrawCircle(color, HandleSize, ScreenTo.X, ScreenTo.Y);
PointF oCenter = oLayer.EdgeCenter(oEdge);
oCenter = this.W2S(oCenter.X, oCenter.Y);
// Draw the handle for the edge
color = "rgba(0,255,0,.5)";
if (bIsCurrentEdge)
{
color = "rgba(0,0,255,1)";
}
// Draw the handle for the edge
this.DrawRectangle(color, HandleSize, HandleSize, oCenter.X, oCenter.Y - HandleSize);
}
// Call draw routine to draw line
this.DrawLine("#0000FF", (float)0.5, ScreenFrom, ScreenTo);
}
}