RenderSpecificLayerOfCadDocument_19.1.java

// For complete examples and data files, please go to https://github.com/groupdocs-viewer/GroupDocs.Viewer-for-Java
// Get Configurations
ViewerConfig config = Utilities.getConfiguration();

// Create html handler
ViewerHtmlHandler htmlHandler = new ViewerHtmlHandler(config);
String guid = DocumentName;

// Set CAD options to render two Layers
HtmlOptions options = new HtmlOptions();
options.getCadOptions().getLayers().add("electrical");
options.getCadOptions().getLayers().add("walls");

// Get pages 
List<PageHtml> pages = htmlHandler.getPages(guid, options);

for (PageHtml page : pages)
{
	//Save each page at disk
	Utilities.saveAsHtml(page.getPageNumber() + "_" + DocumentName, page.getHtmlContent());
}