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Added WorldMercatorProjection, fixed bounding box problems when changing projection.

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ClemensF 2017-10-27 17:15:18 +02:00
parent 2f123886ff
commit 156ebfe177
21 changed files with 586 additions and 469 deletions
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96
MapControl/WPF/MapGraticule.WPF.cs
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@ -42,55 +42,59 @@ namespace MapControl
if (projection != null && !double.IsNaN(projection.LongitudeScale))
{
var bounds = projection.ViewportRectToBoundingBox(new Rect(ParentMap.RenderSize));
var lineDistance = GetLineDistance();
var labelFormat = GetLabelFormat(lineDistance);
var latLabelStart = Math.Ceiling(bounds.South / lineDistance) * lineDistance;
var lonLabelStart = Math.Ceiling(bounds.West / lineDistance) * lineDistance;
var latLabels = new List<Label>((int)((bounds.North - latLabelStart) / lineDistance) + 1);
var lonLabels = new List<Label>((int)((bounds.East - lonLabelStart) / lineDistance) + 1);
var typeface = new Typeface(FontFamily, FontStyle, FontWeight, FontStretch);
var pen = new Pen
if (bounds.HasValidBounds)
{
Brush = Stroke,
Thickness = StrokeThickness,
DashStyle = new DashStyle(StrokeDashArray, StrokeDashOffset),
DashCap = StrokeDashCap
};
for (var lat = latLabelStart; lat <= bounds.North; lat += lineDistance)
{
latLabels.Add(new Label(lat, new FormattedText(
GetLabelText(lat, labelFormat, "NS"),
CultureInfo.InvariantCulture, FlowDirection.LeftToRight, typeface, FontSize, Foreground)));
drawingContext.DrawLine(pen,
projection.LocationToViewportPoint(new Location(lat, bounds.West)),
projection.LocationToViewportPoint(new Location(lat, bounds.East)));
}
for (var lon = lonLabelStart; lon <= bounds.East; lon += lineDistance)
{
lonLabels.Add(new Label(lon, new FormattedText(
GetLabelText(Location.NormalizeLongitude(lon), labelFormat, "EW"),
CultureInfo.InvariantCulture, FlowDirection.LeftToRight, typeface, FontSize, Foreground)));
drawingContext.DrawLine(pen,
projection.LocationToViewportPoint(new Location(bounds.South, lon)),
projection.LocationToViewportPoint(new Location(bounds.North, lon)));
}
foreach (var latLabel in latLabels)
{
foreach (var lonLabel in lonLabels)
var lineDistance = GetLineDistance();
var labelFormat = GetLabelFormat(lineDistance);
var latLabelStart = Math.Ceiling(bounds.South / lineDistance) * lineDistance;
var lonLabelStart = Math.Ceiling(bounds.West / lineDistance) * lineDistance;
var latLabels = new List<Label>((int)((bounds.North - latLabelStart) / lineDistance) + 1);
var lonLabels = new List<Label>((int)((bounds.East - lonLabelStart) / lineDistance) + 1);
var typeface = new Typeface(FontFamily, FontStyle, FontWeight, FontStretch);
var pen = new Pen
{
var position = projection.LocationToViewportPoint(new Location(latLabel.Position, lonLabel.Position));
Brush = Stroke,
Thickness = StrokeThickness,
DashStyle = new DashStyle(StrokeDashArray, StrokeDashOffset),
DashCap = StrokeDashCap
};
drawingContext.PushTransform(new RotateTransform(ParentMap.Heading, position.X, position.Y));
drawingContext.DrawText(latLabel.Text,
new Point(position.X + StrokeThickness / 2d + 2d, position.Y - StrokeThickness / 2d - latLabel.Text.Height));
drawingContext.DrawText(lonLabel.Text,
new Point(position.X + StrokeThickness / 2d + 2d, position.Y + StrokeThickness / 2d));
drawingContext.Pop();
for (var lat = latLabelStart; lat <= bounds.North; lat += lineDistance)
{
latLabels.Add(new Label(lat, new FormattedText(
GetLabelText(lat, labelFormat, "NS"),
CultureInfo.InvariantCulture, FlowDirection.LeftToRight, typeface, FontSize, Foreground)));
drawingContext.DrawLine(pen,
projection.LocationToViewportPoint(new Location(lat, bounds.West)),
projection.LocationToViewportPoint(new Location(lat, bounds.East)));
}
for (var lon = lonLabelStart; lon <= bounds.East; lon += lineDistance)
{
lonLabels.Add(new Label(lon, new FormattedText(
GetLabelText(Location.NormalizeLongitude(lon), labelFormat, "EW"),
CultureInfo.InvariantCulture, FlowDirection.LeftToRight, typeface, FontSize, Foreground)));
drawingContext.DrawLine(pen,
projection.LocationToViewportPoint(new Location(bounds.South, lon)),
projection.LocationToViewportPoint(new Location(bounds.North, lon)));
}
foreach (var latLabel in latLabels)
{
foreach (var lonLabel in lonLabels)
{
var position = projection.LocationToViewportPoint(new Location(latLabel.Position, lonLabel.Position));
drawingContext.PushTransform(new RotateTransform(ParentMap.Heading, position.X, position.Y));
drawingContext.DrawText(latLabel.Text,
new Point(position.X + StrokeThickness / 2d + 2d, position.Y - StrokeThickness / 2d - latLabel.Text.Height));
drawingContext.DrawText(lonLabel.Text,
new Point(position.X + StrokeThickness / 2d + 2d, position.Y + StrokeThickness / 2d));
drawingContext.Pop();
}
}
}
}