/// <summary>
/// Generates the points and segments of the arrow Figure object.
/// </summary>
protected override void BuildFiguresOverride()
{
double headLength = _formatRatio * _headLengthRatio;
double bodyLength = _formatRatio - headLength;
double bodyHeight = _headWidthRatio != 0.0 ? 1.0 / _headWidthRatio : 1.0;
double bodyTop = 0.5 - bodyHeight / 2;
double bodyBottom = 0.5 + bodyHeight / 2;
_points.Clear();
_points.Add(new Point(0.0, bodyTop));
_points.Add(new Point(0.0, bodyBottom));
_points.Add(new Point(bodyLength, bodyBottom));
_points.Add(new Point(bodyLength, 1.0));
_points.Add(new Point(_formatRatio, 0.5));
_points.Add(new Point(bodyLength, 0.0));
_points.Add(new Point(bodyLength, bodyTop));
bool scaling = false;
ScaleTransform transform = new ScaleTransform();
if (!Double.IsNaN(Width))
{
transform.ScaleX = _formatRatio != 0.0 ? (Width - 2 * StrokeThickness) / _formatRatio : 1.0;
scaling = true;
}
if (!Double.IsNaN(Height))
{
transform.ScaleY = Height - 2 * StrokeThickness;
scaling = true;
}
_figure.Segments.Clear();
if (scaling)
{
_points[0] = transform.Transform(_points[0]);
}
_figure.StartPoint = _points[0];
for (int i = 0; i < _points.Count; i++)
{
if (i < _points.Count - 1)
{
if (scaling)
{
_points[i + 1] = transform.Transform(_points[i + 1]);
}
LineSegment segment = new LineSegment();
segment.Point = _points[i + 1];
_figure.Segments.Add(segment);
}
}
Figures.Add(_figure);
}
public override bool Display()
{
if (Lifetime <= 0)
{
return(false);
}
Transform translate = new TranslateTransform(OffsetX, OffsetY);
Polyline pl = (Polyline)Geometry;
PointCollection p = new PointCollection();
foreach (Point vert in pl.Points)
{
p.Add(translate.Transform(vert));
}
pl.Points = p;
Transform scale = new ScaleTransform(.998, .998, Center.X, Center.Y);
p = new PointCollection();
foreach (Point vert in pl.Points)
{
p.Add(scale.Transform(vert));
}
pl.Points = p;
OffsetX -= .002;
Lifetime--;
return(true);
}
public static void ScaleGeom(ref IGeom geom, double scaleX, double scaleY, Point refer)
{
Matrix mx = new ScaleTransform(scaleX, scaleY, refer.X, refer.Y).Value;
Point[] pots = geom.ToPoints();
mx.Transform(pots);
geom.SetByPoints(pots);
}
/// <summary>
/// transforming mouse position invers to transformation of image object
/// </summary>
/// <param name="mousePos">initial position to be transformed</param>
/// <returns>transformed position</returns>
private Point transformMouse(Point mousePos)
{
var rt = new RotateTransform(-90, image.ActualWidth / 2.0, image.ActualHeight / 2.0);
var st = new ScaleTransform(-1, 1, image.ActualWidth / 2.0, image.ActualHeight / 2.0);
mousePos = st.Transform(mousePos);
mousePos = rt.Transform(mousePos);
return(mousePos);
}
public static Point[] Scale(this Point[] points, double scale)
{
ScaleTransform?scaleTransform = new ScaleTransform(scale, scale);
List <Point>? result = new List <Point>();
foreach (Point point in points)
{
result.Add(scaleTransform.Transform(point));
}
return(result.ToArray());
}
public System.Windows.Point Transform(Navigation.Point point)
{
float minX = _corner1.X;
float minY = _corner1.Y;
float maxX = _corner2.X;
float maxY = _corner2.Y;
var transform = new TranslateTransform(0 - minX, 0 - minY);
var scale = new ScaleTransform((_actualWidth - 10) / Math.Abs(maxX - minX), (_actualHeight - 50) / Math.Abs(maxY - minY));
return(scale.Transform(transform.Transform(
new System.Windows.Point(point.X, -1 * point.Y))));
}
private void Scale(double scaleX, double scaleY, double centerX, double centerY)
{
//Adjust for the zoom level.
var t = new ScaleTransform(scaleX, scaleY, centerX, centerY);
foreach (var previewPixel in PropPixels)
{
var point = t.Transform(new Point(previewPixel.Location.X, previewPixel.Location.Y));
previewPixel.Location = point;
}
Layout();
}
void UpdateMarkersOffset()
{
if (MapCanvas != null)
{
if (MapScaleTransform != null)
{
var tp = MapScaleTransform.Transform(new System.Windows.Point(Core.renderOffset.X, Core.renderOffset.Y));
MapOverlayTranslateTransform.X = tp.X;
MapOverlayTranslateTransform.Y = tp.Y;
// map is scaled already
MapTranslateTransform.X = Core.renderOffset.X;
MapTranslateTransform.Y = Core.renderOffset.Y;
}
else
{
MapTranslateTransform.X = Core.renderOffset.X;
MapTranslateTransform.Y = Core.renderOffset.Y;
MapOverlayTranslateTransform.X = MapTranslateTransform.X;
MapOverlayTranslateTransform.Y = MapTranslateTransform.Y;
}
}
}
private void ZoomAdd(Point p)
{
// Point nowp = transform.Transform(p);
transform.ScaleX *= 1.1;
transform.ScaleY *= 1.1;
ink.LayoutTransform = transform;
var v = new Vector(scrollViewer.HorizontalOffset, scrollViewer.VerticalOffset);
Point point = p + v;
Point newCenter = _transform.Transform(point);
var newp = newCenter - v;
scrollViewer.ScrollToHorizontalOffset(scrollViewer.HorizontalOffset + newp.X - p.X);
scrollViewer.ScrollToVerticalOffset(scrollViewer.VerticalOffset + newp.Y - p.Y);
}
/// <summary>
/// Arranges the override.
/// </summary>
/// <param name="arrangeSize">Size of the arrange.</param>
/// <returns>Size.</returns>
/// <inheritdoc />
protected override Size ArrangeOverride(Size arrangeSize)
{
foreach (FrameworkElement child in Children)
{
child.RenderTransform = _scale;
var position = GetPosition(child);
position = _scale.Transform(position);
position.X += Shift.X;
position.Y += Shift.Y;
child.Arrange(new Rect(position, child.DesiredSize));
}
return(arrangeSize);
}
/// <summary>
/// Calculate actual layout Rect of Rectangle relative to Viewbox.
/// </summary>
/// <param name="vb">Containing Viewbox.</param>
/// <param name="r">Contained Rectangle.</param>
/// <returns>Actual layout Rect of contained Rectangle relative to containing Viewbox.</returns>
private static Rect CalculateActualLayout(Viewbox vb, Rectangle r)
{
Assert.AreEqual(VisualTreeHelper.GetChildrenCount(vb), 1, "Viewbox template changed!");
Assert.IsInstanceOfType(VisualTreeHelper.GetChild(vb, 0), typeof(ContentPresenter), "Viewbox template changed!");
ContentPresenter container = VisualTreeHelper.GetChild(vb, 0) as ContentPresenter;
ScaleTransform scale = container.RenderTransform as ScaleTransform;
Assert.IsNotNull(scale, "Viewbox implementation changed!");
Point offset = r.TransformToVisual(vb).Transform(new Point(0, 0));
offset = scale.Transform(offset);
Rect actual = new Rect(offset.X, offset.Y, r.ActualWidth * scale.ScaleX, r.ActualHeight * scale.ScaleY);
return(actual);
}
public void BranchLabelToMouse(BranchLabelModel branch, Point mouse)
{
Vector mouseRelativeToGraph = new Vector(mouse.X, mouse.Y) - new Vector(Position.X, Position.Y);
Matrix mat = ZoomAndPanCanvasModel.TransformMatrix;
Matrix inv = mat;
inv.Invert();
Point loc = branch.Location;
Point tloc = mat.Transform(NodeTransform.Transform(loc));
Point diff = new Point(mouseRelativeToGraph.X - tloc.X, mouseRelativeToGraph.Y - tloc.Y);
ScaleTransform scale = new ScaleTransform(inv.M11, inv.M22);
diff = scale.Transform(diff);
Matrix m = NodeTransform.Matrix;
m.Translate(diff.X, diff.Y);
NodeTransform.Matrix = m;
}
public override bool Display()
{
if (Lifetime <= 0)
{
return(false);
}
Transform scale = new ScaleTransform(.91, .91, Center.X, Center.Y);
Polyline pl = (Polyline)Geometry;
PointCollection p = new PointCollection();
foreach (Point vert in pl.Points)
{
p.Add(scale.Transform(vert));
}
pl.Points = p;
Geometry = pl;
Lifetime--;
return(true);
}
public static Point Transform(double latdec, double londec)
{
return(ScaleTransform.Transform(TranslateTransform.Transform(new Point(londec, -LatitudeToY(latdec)))));
}
