protected override void UpdateDataSource()
{
if (DataSource != null)
{
IsolineBuilder.DataSource = DataSource;
IsolineBuilder.MissingValue = MissingValue;
Collection = IsolineBuilder.BuildIsoline();
}
else
{
Collection = null;
}
}
protected override void OnRender(DrawingContext drawingContext)
{
if (Plotter2D == null)
{
return;
}
if (DataSource == null)
{
return;
}
var collection = (IsolineCollection)Parent.GetValue(IsolineCollectionProperty);
if (collection == null)
{
return;
}
var bounds = ViewportPanel.GetViewportBounds(this);
if (bounds.IsEmpty)
{
return;
}
var dc = drawingContext;
var strokeThickness = StrokeThickness;
var transform = Plotter2D.Transform.WithRects(bounds, new Rect(RenderSize));
//dc.DrawRectangle(null, new Pen(Brushes.Green, 2), new Rect(RenderSize));
var additionalLevels = GetAdditionalLevels(collection);
IsolineBuilder.DataSource = DataSource;
var additionalIsolineCollections = additionalLevels.Select(level =>
{
return(IsolineBuilder.BuildIsoline(level));
});
foreach (var additionalCollection in additionalIsolineCollections)
{
RenderIsolineCollection(dc, strokeThickness, additionalCollection, transform);
}
}
protected override void OnRender(DrawingContext drawingContext)
{
if (Plotter2D == null)
{
return;
}
if (Collection == null)
{
return;
}
if (DataSource == null)
{
return;
}
if (Collection.Lines.Count == 0)
{
IsolineBuilder.DataSource = DataSource;
IsolineBuilder.MissingValue = MissingValue;
Collection = IsolineBuilder.BuildIsoline();
}
IsolineCollection = Collection;
var dc = drawingContext;
var strokeThickness = StrokeThickness;
var collection = Collection;
var bounds = DataRect.Empty;
// determining content bounds
foreach (LevelLine line in collection)
{
foreach (Point point in line.AllPoints)
{
bounds.Union(point);
}
}
Viewport2D.SetContentBounds(this, bounds);
ViewportPanel.SetViewportBounds(this, bounds);
if (bounds.IsEmpty)
{
return;
}
// custom transform with output set to renderSize of this control
var transform = Plotter2D.Transform.WithRects(bounds, new Rect(RenderSize));
// actual drawing of isolines
RenderIsolineCollection(dc, strokeThickness, collection, transform);
//var additionalLevels = GetAdditionalIsolines(collection);
//var additionalIsolineCollections = additionalLevels.Select(level => IsolineBuilder.BuildIsoline(level));
//foreach (var additionalCollection in additionalIsolineCollections)
//{
// RenderIsolineCollection(dc, strokeThickness, additionalCollection, transform);
//}
RenderLabels(dc, collection);
// foreach (var additionalCollection in additionalIsolineCollections)
// {
// RenderLabels(dc, additionalCollection);
// }
}
