TransformLayoutCore
(
IGraph graph,
LayoutContext originalLayoutContext,
LayoutContext newLayoutContext
)
{
Debug.Assert(graph != null);
Debug.Assert(originalLayoutContext != null);
Debug.Assert(newLayoutContext != null);
AssertValid();
// We want the graph to remain stationary, with the polar origin always
// at the center of the graph rectangle. Also, no scaling should occur
// as the window changes size.
Rectangle oOriginalGraphRectangle =
originalLayoutContext.GraphRectangle;
Rectangle oNewGraphRectangle =
newLayoutContext.GraphRectangle;
Matrix oMatrix = new Matrix();
oMatrix.Translate(
(oNewGraphRectangle.Width - oOriginalGraphRectangle.Width) / 2F,
(oNewGraphRectangle.Height - oOriginalGraphRectangle.Height) / 2F
);
LayoutUtil.TransformVertexLocations(graph, oMatrix);
}
TransformLayoutCore
(
IGraph graph,
LayoutContext originalLayoutContext,
LayoutContext newLayoutContext
)
{
Debug.Assert(graph != null);
Debug.Assert(originalLayoutContext != null);
Debug.Assert(newLayoutContext != null);
AssertValid();
Matrix oTransformationMatrix = LayoutUtil.GetRectangleTransformation(
originalLayoutContext.GraphRectangle,
newLayoutContext.GraphRectangle
);
LayoutUtil.TransformVertexLocations(graph, oTransformationMatrix);
}
