GetCombinedIntergroupEdgePenWidth
(
IntergroupEdgeInfo oCombinedIntergroupEdge
)
{
Debug.Assert(oCombinedIntergroupEdge != null);
AssertValid();
return (MathUtil.TransformValueToRange(
(Single)oCombinedIntergroupEdge.EdgeWeightSum,
CombinedIntergroupEdgeMinimumCount,
CombinedIntergroupEdgeMaximumCount,
CombinedIntergroupEdgeMinimumWidth,
CombinedIntergroupEdgeMaximumWidth
) );
}
DrawCombinedIntergroupEdge
(
DrawingContext oDrawingContext,
GraphDrawingContext oGraphDrawingContext,
IntergroupEdgeInfo oCombinedIntergroupEdge,
GroupLayoutDrawingInfo oGroupLayoutDrawingInfo
)
{
Debug.Assert(oDrawingContext != null);
Debug.Assert(oGraphDrawingContext != null);
Debug.Assert(oCombinedIntergroupEdge != null);
Debug.Assert(oGroupLayoutDrawingInfo != null);
AssertValid();
Rect oGroupRectangle1, oGroupRectangle2;
if (
!TryGetGroupRectangle(
oGroupLayoutDrawingInfo.GroupsToDraw[
oCombinedIntergroupEdge.Group1Index],
out oGroupRectangle1)
||
!TryGetGroupRectangle(
oGroupLayoutDrawingInfo.GroupsToDraw[
oCombinedIntergroupEdge.Group2Index],
out oGroupRectangle2)
)
{
return;
}
Point oGroupRectangle1Center =
WpfGraphicsUtil.GetRectCenter(oGroupRectangle1);
Point oGroupRectangle2Center =
WpfGraphicsUtil.GetRectCenter(oGroupRectangle2);
Point oBezierControlPoint = GetBezierControlPoint(oGraphDrawingContext,
oGroupRectangle1Center, oGroupRectangle2Center,
CombinedIntergroupEdgeBezierDisplacementFactor
);
PathGeometry oBezierCurve =
WpfPathGeometryUtil.GetQuadraticBezierCurve(oGroupRectangle1Center,
oGroupRectangle2Center, oBezierControlPoint);
Color oColor = GetContrastingColor(
oGraphDrawingContext, CombinedIntergroupEdgeAlpha, true);
Pen oPen = CreateFrozenPen(CreateFrozenSolidColorBrush(oColor),
GetCombinedIntergroupEdgePenWidth(oCombinedIntergroupEdge) *
this.GraphScale,
DashStyles.Solid, PenLineCap.Round);
oDrawingContext.DrawGeometry(null, oPen, oBezierCurve);
}
TestConstructor()
{
const Int32 Group1Index = 0;
const Int32 Group2Index = 12;
const Int32 Edges = 1;
const Double EdgeWeightSum = 1.234;
IntergroupEdgeInfo oIntergroupEdgeInfo =
new IntergroupEdgeInfo(Group1Index, Group2Index, Edges,
EdgeWeightSum);
Assert.AreEqual(Group1Index, oIntergroupEdgeInfo.Group1Index);
Assert.AreEqual(Group2Index, oIntergroupEdgeInfo.Group2Index);
Assert.AreEqual(Edges, oIntergroupEdgeInfo.Edges);
Assert.AreEqual(EdgeWeightSum, oIntergroupEdgeInfo.EdgeWeightSum);
oIntergroupEdgeInfo.Edges++;
Assert.AreEqual(Edges + 1, oIntergroupEdgeInfo.Edges);
}
CompareIntergroupEdges
(
IntergroupEdgeInfo oIntergroupEdge1,
IntergroupEdgeInfo oIntergroupEdge2
)
{
Debug.Assert(oIntergroupEdge1 != null);
Debug.Assert(oIntergroupEdge2 != null);
// Sort first by Group1Index, then Group2Index.
Int32 iReturnValue = oIntergroupEdge1.Group1Index.CompareTo(
oIntergroupEdge2.Group1Index);
if (iReturnValue == 0)
{
iReturnValue = oIntergroupEdge1.Group2Index.CompareTo(
oIntergroupEdge2.Group2Index);
}
return (iReturnValue);
}
CountIncidentEdge
(
IEdge oIntergroupEdge,
Int32 iGroup1Index,
Int32 iGroup2Index,
IList<IntergroupEdgeInfo> oIntergroupEdges,
Dictionary<Int32, IntergroupEdgeInfo> oIntergroupEdgeIndexes
)
{
Debug.Assert(oIntergroupEdge != null);
Debug.Assert(iGroup1Index >= 0);
Debug.Assert(iGroup2Index >= 0);
Debug.Assert(oIntergroupEdges != null);
Debug.Assert(oIntergroupEdgeIndexes != null);
AssertValid();
Double dPositiveEdgeWeight = EdgeUtil.GetPositiveEdgeWeight(
oIntergroupEdge);
// Does an object already exist for the iGroup1Index/iGroup2Index pair?
IntergroupEdgeInfo oIntergroupEdgeInfo;
if ( oIntergroupEdgeIndexes.TryGetValue(iGroup2Index,
out oIntergroupEdgeInfo) )
{
// Yes.
oIntergroupEdgeInfo.Edges++;
oIntergroupEdgeInfo.EdgeWeightSum += dPositiveEdgeWeight;
}
else
{
// No. Create one.
oIntergroupEdgeInfo = new IntergroupEdgeInfo(
iGroup1Index, iGroup2Index, 1, dPositiveEdgeWeight);
oIntergroupEdges.Add(oIntergroupEdgeInfo);
oIntergroupEdgeIndexes.Add(iGroup2Index, oIntergroupEdgeInfo);
}
}
TestConstructor()
{
// Has CombinedIntergroupEdges.
GroupInfo [] aoGroupInfo = new GroupInfo [] {
new GroupInfo(),
new GroupInfo(),
new GroupInfo()
};
const Double PenWidth = 1.234;
IntergroupEdgeInfo[] aoCombinedIntergroupEdges =
new IntergroupEdgeInfo[5];
GroupLayoutDrawingInfo oGroupLayoutDrawingInfo =
new GroupLayoutDrawingInfo(aoGroupInfo, PenWidth,
aoCombinedIntergroupEdges);
Assert.AreEqual(aoGroupInfo, oGroupLayoutDrawingInfo.GroupsToDraw);
Assert.AreEqual(PenWidth, oGroupLayoutDrawingInfo.PenWidth);
Assert.AreEqual(aoCombinedIntergroupEdges,
oGroupLayoutDrawingInfo.CombinedIntergroupEdges);
}