Coloring of inserts with new added layers

How to coloring of inserts with new added layers (CADNET-1146)

Issue: How to coloring of inserts with new added layers (CADNET-1146).

Tips: To do this, use the CadLayerTable class to create a layer to be able to add a new layer to the drawing, you can also use CadLayersList to add multiple layers.

Example:

The initial file contains 5 inserts with names “1”, “2”, “3”, “4’ and “5” and all of them are in the default 0 layer.

using (CadImage cadImage = (CadImage)Image.Load(GetPath(fileName)))
{
  CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions();
  rasterizationOptions.DrawType = CadDrawTypeMode.UseObjectColor;
  
  CadLayersList newList = cadImage.Layers;

  CadLayerTable redLayer = new CadLayerTable();
  redLayer.Name = "REDLAYER";
  redLayer.ColorId = 1; // ID of red color               
  redLayer.ObjectHandle = "REDLAYER";
  
  CadLayerTable greenLayer = new CadLayerTable();
  greenLayer.Name = "GREENLAYER";
  greenLayer.ObjectHandle = "GREENLAYER";
  greenLayer.ColorId = 3; // ID of green color
  
  newList.AddRange(new CadLayerTable[] {redLayer, greenLayer});
  
  cadImage.Layers = newList;
  foreach (CadBaseEntity entity in cadImage.Entities)
  {
    if (entity.TypeName == CadEntityTypeName.INSERT)
    {
      CadInsertObject insert = (CadInsertObject)entity;
  
      // the required block to change color for is identified by name
      if (insert.Name == "3")
      {
      insert.LayerName = "REDLAYER";
      }
  
      if (insert.Name == "2")
      {
      insert.LayerName = "GREENLAYER";
      }
    }
  }
  
  PdfOptions pdfOptions = new PdfOptions();
  pdfOptions.VectorRasterizationOptions = rasterizationOptions;

  cadImage.Save(outPath, pdfOptions);
}