private void btnScale_Click(object sender, EventArgs e)
{
IFeatureLayer fLayer1 = m_map.get_Layer(1) as IFeatureLayer;
IFeatureLayer fLayer2 = m_map.get_Layer(2) as IFeatureLayer;
IFeatureLayer fLayer0 = m_map.get_Layer(0) as IFeatureLayer;
fLayer2.MinimumScale = 500000000;
IFeatureLayer newFalyer = new FeatureLayer();
newFalyer.Name = "USA";
IFeatureClass featureClass = fLayer1.FeatureClass;
newFalyer.FeatureClass = featureClass;
IGeoFeatureLayer geoFLayer0 = fLayer0 as IGeoFeatureLayer;
IGeoFeatureLayer geoFLayer1 = fLayer1 as IGeoFeatureLayer;
IGeoFeatureLayer geoFLayer2 = fLayer2 as IGeoFeatureLayer;
IGeoFeatureLayer newGeoFLayer = newFalyer as IGeoFeatureLayer;
IScaleDependentRenderer scaleDependentRenderer = new ScaleDependentRenderer();
IFeatureRenderer renderer0 = geoFLayer0.Renderer;
IFeatureRenderer renderer1 = geoFLayer1.Renderer;
IFeatureRenderer renderer2 = geoFLayer2.Renderer;
//Build the new scale dependerer from the existing renderer
scaleDependentRenderer.AddRenderer(renderer0);
scaleDependentRenderer.AddRenderer(renderer1);
scaleDependentRenderer.AddRenderer(renderer2);
//
scaleDependentRenderer.set_Break(0, 100000000);
scaleDependentRenderer.set_Break(1, 500000000);
scaleDependentRenderer.set_Break(2, 5000000000);
newGeoFLayer.Renderer = scaleDependentRenderer as IFeatureRenderer;
m_map.AddLayer(newGeoFLayer);
axMapControl1.Refresh();
}
private List <TocGroup> LoadTocGroups(Renderer renderer, SwatchMaker swatchMaker, bool includeImages)
{
List <TocGroup> tocGroups = new List <TocGroup>();
switch (renderer.GetType().Name)
{
case "SimpleRenderer":
tocGroups.Add(new TocGroup());
SimpleRenderer sr = (SimpleRenderer)renderer;
tocGroups[0].Add(LoadTocClass(sr.Symbol, swatchMaker, includeImages));
break;
case "ValueMapRenderer":
tocGroups.Add(new TocGroup());
ValueMapRenderer vmr = (ValueMapRenderer)renderer;
foreach (Classification classification in vmr.Classifications)
{
string label = "";
switch (classification.GetType().Name)
{
case "Exact":
Exact exact = (Exact)classification;
label = !String.IsNullOrEmpty(exact.Label) ? exact.Label : exact.Value;
break;
case "Range":
Range range = (Range)classification;
label = !String.IsNullOrEmpty(range.Label) ? range.Label : range.Lower + " to " + range.Upper;
break;
case "Other":
label = "(other)";
break;
}
tocGroups[0].Add(LoadTocClass(classification.Symbol, swatchMaker, label, includeImages));
}
break;
case "ScaleDependentRenderer":
ScaleDependentRenderer scd = (ScaleDependentRenderer)renderer;
tocGroups = LoadTocGroups(scd.Renderer, swatchMaker, includeImages);
foreach (TocGroup tocGroup in tocGroups)
{
if (!String.IsNullOrEmpty(scd.Lower))
{
tocGroup.MinScale = Convert.ToDouble(scd.Lower);
}
if (!String.IsNullOrEmpty(scd.Upper))
{
tocGroup.MaxScale = Convert.ToDouble(scd.Upper);
}
}
break;
case "GroupRenderer":
foreach (Renderer subRenderer in (GroupRenderer)renderer)
{
List <TocGroup> subGroups = LoadTocGroups(subRenderer, swatchMaker, includeImages);
foreach (TocGroup tocGroup in subGroups)
{
tocGroups.Add(tocGroup);
}
}
break;
}
return(tocGroups);
}
