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Version 4.6.0: Own Point and Matrix to work around rounding errors in UWP

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ClemensFischer 2018-03-06 22:22:58 +01:00
parent 30a5b6d53f
commit a3542bf106
30 changed files with 295 additions and 269 deletions
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176
MapControl/UWP/MapGraticule.UWP.cs
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@ -15,8 +15,6 @@ namespace MapControl
public partial class MapGraticule
{
private Path path;
private Location graticuleStart;
private Location graticuleEnd;
public MapGraticule()
{
@ -75,104 +73,97 @@ namespace MapControl
Math.Min(Math.Max(labelEnd.Latitude + lineDistance, -projection.MaxLatitude), projection.MaxLatitude),
labelEnd.Longitude + lineDistance);
if (!lineStart.Equals(graticuleStart) || !lineEnd.Equals(graticuleEnd))
var geometry = (PathGeometry)path.Data;
geometry.Figures.Clear();
for (var lat = labelStart.Latitude; lat <= bounds.North; lat += lineDistance)
{
graticuleStart = lineStart;
graticuleEnd = lineEnd;
var geometry = (PathGeometry)path.Data;
geometry.Figures.Clear();
geometry.Transform = projection.ViewportTransform;
for (var lat = labelStart.Latitude; lat <= bounds.North; lat += lineDistance)
var figure = new PathFigure
{
var figure = new PathFigure
{
StartPoint = projection.LocationToPoint(new Location(lat, lineStart.Longitude)),
IsClosed = false,
IsFilled = false
};
StartPoint = projection.LocationToViewportPoint(new Location(lat, lineStart.Longitude)),
IsClosed = false,
IsFilled = false
};
figure.Segments.Add(new LineSegment
{
Point = projection.LocationToPoint(new Location(lat, lineEnd.Longitude)),
});
figure.Segments.Add(new LineSegment
{
Point = projection.LocationToViewportPoint(new Location(lat, lineEnd.Longitude))
});
geometry.Figures.Add(figure);
}
geometry.Figures.Add(figure);
}
for (var lon = labelStart.Longitude; lon <= bounds.East; lon += lineDistance)
{
var figure = new PathFigure
{
StartPoint = projection.LocationToViewportPoint(new Location(lineStart.Latitude, lon)),
IsClosed = false,
IsFilled = false
};
figure.Segments.Add(new LineSegment
{
Point = projection.LocationToViewportPoint(new Location(lineEnd.Latitude, lon))
});
geometry.Figures.Add(figure);
}
var labelFormat = GetLabelFormat(lineDistance);
var childIndex = 1; // 0 for Path
for (var lat = labelStart.Latitude; lat <= bounds.North; lat += lineDistance)
{
for (var lon = labelStart.Longitude; lon <= bounds.East; lon += lineDistance)
{
var figure = new PathFigure
TextBlock label;
if (childIndex < Children.Count)
{
StartPoint = projection.LocationToPoint(new Location(lineStart.Latitude, lon)),
IsClosed = false,
IsFilled = false
};
figure.Segments.Add(new LineSegment
{
Point = projection.LocationToPoint(new Location(lineEnd.Latitude, lon)),
});
geometry.Figures.Add(figure);
}
var labelFormat = GetLabelFormat(lineDistance);
var childIndex = 1; // 0 for Path
for (var lat = labelStart.Latitude; lat <= bounds.North; lat += lineDistance)
{
for (var lon = labelStart.Longitude; lon <= bounds.East; lon += lineDistance)
{
TextBlock label;
if (childIndex < Children.Count)
{
label = (TextBlock)Children[childIndex];
}
else
{
var renderTransform = new TransformGroup();
renderTransform.Children.Add(new TranslateTransform());
renderTransform.Children.Add(ParentMap.RotateTransform);
renderTransform.Children.Add(new TranslateTransform());
label = new TextBlock
{
RenderTransform = renderTransform
};
label.SetBinding(TextBlock.ForegroundProperty,
GetBindingExpression(ForegroundProperty)?.ParentBinding ??
new Binding
{
Source = this,
Path = new PropertyPath("Foreground")
});
Children.Add(label);
}
childIndex++;
if (FontFamily != null)
{
label.FontFamily = FontFamily;
}
label.FontSize = FontSize;
label.FontStyle = FontStyle;
label.FontStretch = FontStretch;
label.FontWeight = FontWeight;
label.Text = GetLabelText(lat, labelFormat, "NS") + "\n" + GetLabelText(Location.NormalizeLongitude(lon), labelFormat, "EW");
label.Tag = new Location(lat, lon);
label.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
var translateTransform = (TranslateTransform)((TransformGroup)label.RenderTransform).Children[0];
translateTransform.X = StrokeThickness / 2d + 2d;
translateTransform.Y = -label.DesiredSize.Height / 2d;
label = (TextBlock)Children[childIndex];
}
else
{
var renderTransform = new TransformGroup();
renderTransform.Children.Add(new TranslateTransform());
renderTransform.Children.Add(ParentMap.RotateTransform);
renderTransform.Children.Add(new TranslateTransform());
label = new TextBlock
{
RenderTransform = renderTransform
};
label.SetBinding(TextBlock.ForegroundProperty,
GetBindingExpression(ForegroundProperty)?.ParentBinding ??
new Binding
{
Source = this,
Path = new PropertyPath("Foreground")
});
Children.Add(label);
}
childIndex++;
if (FontFamily != null)
{
label.FontFamily = FontFamily;
}
label.FontSize = FontSize;
label.FontStyle = FontStyle;
label.FontStretch = FontStretch;
label.FontWeight = FontWeight;
label.Text = GetLabelText(lat, labelFormat, "NS") + "\n" + GetLabelText(Location.NormalizeLongitude(lon), labelFormat, "EW");
label.Tag = new Location(lat, lon);
label.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
var translateTransform = (TranslateTransform)((TransformGroup)label.RenderTransform).Children[0];
translateTransform.X = StrokeThickness / 2d + 2d;
translateTransform.Y = -label.DesiredSize.Height / 2d;
}
while (Children.Count > childIndex)
@ -196,9 +187,6 @@ namespace MapControl
else if (path != null)
{
path = null;
graticuleStart = null;
graticuleEnd = null;
Children.Clear();
}