private void paintLayerbyStyle(Graphics g, Graphics text_g, Layer layer, RSTransform rstransform)
{
Style style = layer.style;
FeatureSource featuresource = layer.featuresource;
foreach (Feature feature in featuresource.features.featureList)
{
if (!feature.visible)
{
continue;
}
switch (feature.geometry.geometryType)
{
case OSGeo.OGR.wkbGeometryType.wkbPoint:
paintPointFeaturebyRule(g, text_g, feature, SelectRendererRule(feature, style), rstransform);
break;
case OSGeo.OGR.wkbGeometryType.wkbLineString:
paintLineFeaturebyRule(g, text_g, feature, SelectRendererRule(feature, style), rstransform);
break;
case OSGeo.OGR.wkbGeometryType.wkbMultiLineString:
break;
case OSGeo.OGR.wkbGeometryType.wkbPolygon:
paintpolygonFeaturebyRule(g, text_g, feature, SelectRendererRule(feature, style), rstransform);
break;
case OSGeo.OGR.wkbGeometryType.wkbMultiPolygon:
paintMultiPolygonbyRule(g, text_g, feature, SelectRendererRule(feature, style), rstransform);
break;
}
}
}
public GisSmartTools.Geometry.Rectangle GetRefernectRectangle()
{
if (layerlist.Count == 0)
{
return(new Geometry.Rectangle(0, 0, 100, 100));
}
Geometry.Rectangle rect = new Geometry.Rectangle(Utils.double_max, Utils.double_max, Utils.double_min, Utils.double_min);
foreach (Layer layer in layerlist)
{
if (!layer.visible)
{
continue;
}
Geometry.Rectangle layerrect = layer.getEnvelopofLayer();
// if(layer.featuresource.schema.rs.spetialReference.)///////////////?????????????此处判断数据坐标系统与map坐标系统是否一致，如果不一致，需要转换
//layerrect = transform...
ReferenceSystem rs = layer.getReference();
RSTransform transform = RSTransformFactory.getRSTransform(rs, this.srs);
PointD minxy = transform.sourceToTarget(new PointD(layerrect.minX, layerrect.minY));
PointD maxxy = transform.sourceToTarget(new PointD(layerrect.maxX, layerrect.maxY));
if (minxy.X < rect.minX)
{
rect.minX = minxy.X;
}
if (maxxy.X > rect.maxX)
{
rect.maxX = maxxy.X;
}
if (minxy.Y < rect.minY)
{
rect.minY = minxy.Y;
}
if (maxxy.Y > rect.maxY)
{
rect.maxY = maxxy.Y;
}
}
return(rect);
}
public RSTransform rsTransfrom; //坐标系转换器
public Filter_Envelop(Rectangle rect, RSTransform rstransfrom)
{
this.rect = rect;
this.rsTransfrom = rstransfrom;
}
private void paintMutiLinebyRule(Graphics g, Graphics text_g, Feature feature, RenderRule rule, RSTransform rstransform)
{
}
