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Style not being applied to Features in Layer

#1

I am building a map with InMemoryFeatureLayers that were saved in an XML file. I read the LayerDescriptors (one of my classes) from the XML and then reconstitute the layer based on the descriptor.

InMemoryFeatureLayer imfl;
foreach (var layer in xmlView.LayerDescriptors)
{
    imfl = new InMemoryFeatureLayer();
    imfl.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = (AreaStyle)layer.DefaultAreaStyleDescriptor.ToInstance();
    imfl.ZoomLevelSet.ZoomLevel01.DefaultLineStyle = (LineStyle)layer.DefaultLineStyleDescriptor.ToInstance();
    imfl.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
    imfl.Name = layer.LayerName;
    foreach (string f in layer.ShapeTexts)
    {
        var nf = new Feature(f);
        imfl.InternalFeatures.Add(nf);
    }
                
    this.Layers.Add(imfl);
}

The shapes are appearing on the map, but the pen and area brush are always black and the area is set to 100% transparent even tho the AreaStyle FIllSolidBrush is not set to black nor transparent. Am I applying the Default Styles incorrectly?

Dave

Image5.png872×330 54.7 KB

#2

Hi Dave,

I think maybe the areastyle from your XML hadn’t been assigned to the default style succeed.

Please do some test like this:

  1. Assign a style to InMemoryFeatureLayer, the style should be created by AreaStyles.CreateSimpleAreaStyle. You can see whether that works for the InMemoryFeatureLayer. I think it should works well. And please don’t modify the IsActive for zoomlevel01 when test.

  2. Compare the (AreaStyle)layer.DefaultAreaStyleDescriptor.ToInstance() and your built area style, we need to know whether they are the same one.

If you hadn’t found the problem after the test, please built a simple sample and upload here, we can help you do some research about it.

Regards,

Don

#3

It looks like the InMemoryFeatureLayer is getting set to me. Here is my latest code, using AreaStyles.CreateSimpleAreaStyle() as directed.

InMemoryFeatureLayer imfl;
foreach (var layer in xmlView.LayerDescriptors)
{
	imfl = new InMemoryFeatureLayer();                    
	imfl.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle((layer.DefaultAreaStyleDescriptor.ToInstance() as AreaStyle).FillSolidBrush.Color);
	imfl.ZoomLevelSet.ZoomLevel01.DefaultLineStyle = (LineStyle)layer.DefaultLineStyleDescriptor.ToInstance();
	imfl.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
	imfl.Name = layer.LayerName;
	foreach (string f in layer.ShapeTexts)
	{
		var nf = new Feature(f);
		imfl.InternalFeatures.Add(nf);
	}		
	this.Layers.Add(imfl);		
}

And here is the state of both layer.DefaultAreaStyleDescriptor.ToInstance() and imfl.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle from the VS2015 Immediate window.

layer.DefaultAreaStyleDescriptor.ToInstance()
{ThinkGeo.MapSuite.Core.AreaStyle}
	Advanced: {ThinkGeo.MapSuite.Core.AreaStyleAdvanced}
	CustomAreaStyles: Count = 0
	FillSolidBrush: {ThinkGeo.MapSuite.Core.GeoSolidBrush}
	IsActive: true
	Name: ""
	OutlinePen: {ThinkGeo.MapSuite.Core.GeoPen}
	PenBrushDrawingOrder: BrushFirst
	RequiredColumnNames: Count = 0
	XOffsetInPixel: 0
	YOffsetInPixel: 0
imfl.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle
{ThinkGeo.MapSuite.Core.AreaStyle}
	Advanced: {ThinkGeo.MapSuite.Core.AreaStyleAdvanced}
	CustomAreaStyles: Count = 0
	FillSolidBrush: {ThinkGeo.MapSuite.Core.GeoSolidBrush}
	IsActive: true
	Name: ""
	OutlinePen: {ThinkGeo.MapSuite.Core.GeoPen}
	PenBrushDrawingOrder: BrushFirst
	RequiredColumnNames: Count = 0
	XOffsetInPixel: 0
	YOffsetInPixel: 0
(layer.DefaultAreaStyleDescriptor.ToInstance() as AreaStyle).FillSolidBrush.Color
{ThinkGeo.MapSuite.Core.GeoColor}
	AlphaComponent: 180
	BlueComponent: 225
	GreenComponent: 105
	Hue: 225
	IsTransparent: false
	Luminance: 0.5686275
	RedComponent: 65
	Saturation: 0.727272749
imfl.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle.FillSolidBrush.Color
{ThinkGeo.MapSuite.Core.GeoColor}
	AlphaComponent: 180
	BlueComponent: 225
	GreenComponent: 105
	Hue: 225
	IsTransparent: false
	Luminance: 0.5686275
	RedComponent: 65
	Saturation: 0.727272749

If nothing looks wrong with this code I’ll create a simple sample in the morning. (+6 GMT here)

#4

Hi Dave,

Please attach your sample here or upload that into our FTP if it’s private or big. You can get the FTP account from your sales.

Regards,

Don

#5

My bad… the most recent code I posted does work.

Thank you for the help.

Dave

#6

Hi Dave,

I am glad to hear that works.

Any question please let us know.

Regards,

Don