public virtual void ApplySizeTheme(IDataSizeTheme theme)
{
if (LayerData.GeoType == VectorLayer.GEOTYPE_POINT)
{
for (int i = 0; i < Features.Count; i++)
{
var feature = LayerData.Features[i];
var shape = Features[feature];
double size = MapControl.Current.GetMagFactor(MapControl.Current.InitialScale) * theme.GetSize(feature);
ElementPositionHelper.CenterElementInCanvas(shape, size, size);
}
}
else if (LayerData.GeoType == VectorLayer.GEOTYPE_LINEAR)
{
// done: 流量图
for (int i = 0; i < Features.Count; i++)
{
var feature = LayerData.Features[i];
var shape = Features[feature];
double size = theme.GetSize(feature);
(shape as Polyline).StrokeThickness = size;
}
}
_hasSizeTheme = true;
_sizeTheme = theme;
}
protected virtual void AddSpot(Point pos, IFeature f)
{
var result = new Ellipse
{
Width = LayerStyle.SpotSize,
Height = LayerStyle.SpotSize,
Stroke = LayerStyle.Stroke,
StrokeThickness = LayerStyle.StrokeWeight,
Fill = LayerStyle.GetFill()
};
ElementPositionHelper.SetElementDesignPosition(result, pos);
ElementPositionHelper.CenterElementInCanvas(result, LayerStyle.SpotSize, LayerStyle.SpotSize);
this.AddFeatureChildren(f, result);
}
public virtual void ClearSizeTheme()
{
for (int i = 0; i < Features.Count; i++)
{
var feature = LayerData.Features[i];
var shape = Features[feature];
if (LayerData.GeoType == VectorLayer.GEOTYPE_POINT)
{
double size = MapControl.Current.GetMagFactor(MapControl.Current.InitialScale) * LayerStyle.SpotSize;
ElementPositionHelper.CenterElementInCanvas(shape, size, size);
}
else if (LayerData.GeoType == VectorLayer.GEOTYPE_LINEAR)
{
double size = MapControl.Current.GetMagFactor(MapControl.Current.InitialScale) * LayerStyle.StrokeWeight;
(shape as Polyline).StrokeThickness = size;
}
}
_hasSizeTheme = false;
}
protected virtual void AddLable(Point pos, string text, double angle = 0)
{
if (!string.IsNullOrEmpty(text)) // 20120315优化
{
TextBlock tb = new TextBlock {
Text = text
}; //此处与silverlight不同
tb.FontSize = LayerStyle.FontSize;
tb.Foreground = LayerStyle.FontBrush;
double actualWidth = LayerStyle.FontSize * 5;
double actualHeight = LayerStyle.FontSize;
ElementPositionHelper.SetElementData(tb, "Type", LayerData.GeoType);
ElementPositionHelper.SetElementData(tb, "Size", LayerStyle.FontSize);
ElementPositionHelper.SetElementData(tb, "Angle", angle);
ElementPositionHelper.SetElementDesignPosition(tb, pos);
//ElementPositionHelper.CenterElementInCanvas(tb, actualWidth, actualHeight);
Canvas.SetLeft(tb, pos.X - actualWidth / 2);
Canvas.SetTop(tb, pos.Y - actualHeight / 2);
var trans1 = new ScaleTransform {
ScaleX = 1, ScaleY = -1, CenterX = actualWidth / 2, CenterY = actualHeight / 2
};
var trans2 = new RotateTransform {
Angle = angle, CenterX = actualWidth / 2, CenterY = actualHeight / 2
};
var trans = new TransformGroup();
trans.Children.Add(trans1);
trans.Children.Add(trans2);
if (LayerData.GeoType == VectorLayer.GEOTYPE_POINT)
{
trans.Children.Add(new TranslateTransform {
X = actualWidth / 1.5
});
}
tb.RenderTransform = trans;
LabelLayer.Children.Add(tb);
}
}
public virtual void SetMagFactor(double magFactor)
{
if (this.LayerData.GeoType == VectorLayer.GEOTYPE_POINT && !_hasSizeTheme)
{
foreach (Ellipse ep in this.Features.Values)
{
double size = this.LayerStyle.SpotSize * magFactor;
ep.StrokeThickness = this.LayerStyle.StrokeWeight * magFactor;
ElementPositionHelper.CenterElementInCanvas(ep, size, size);
}
}
else if (this.LayerData.GeoType == VectorLayer.GEOTYPE_LINEAR && !IsRoad())
{
if (_hasSizeTheme)
{
foreach (var feature in this.Features)
{
feature.Value.StrokeThickness = _sizeTheme.GetSize(feature.Key) * magFactor;
}
}
else
{
foreach (var poly in this.Features.Values)
{
poly.StrokeThickness = this.LayerStyle.StrokeWeight * magFactor;
}
}
}
else if (this.LayerData.GeoType == VectorLayer.GEOTYPE_REGION)
{
foreach (Polygon poly in this.Features.Values)
{
poly.StrokeThickness = this.LayerStyle.StrokeWeight * magFactor;
}
}
}
