Creating bitmap using selected CADEntities

[rtec]

Hello,
I want to create a bitmap using only the selected CADEntities (in CADEditorControl). I think easy way to do is to set visible property to false for all non selected CADEntities and save it as bitmap, but I don't want to iterate through all CADEntities so tried

creating a new cad image and
used cadImage.CopyEntities and cadImage.PasteEntities to copy the selected entities into new CADImage

Code: Select all

CADImage cadImage = CADImage.CreateImageByExtension(this.m_strSelectedCADFilePath);
cadImage.Converter.HeadStruct = (HeadVarStruct)cadImage.Converter.HeadStruct.Clone();
cadImage.CopyEntities(m_cadEditorControl.Image.SelectedEntities);				
cadImage.PasteEntities();

code seems to be working fine for most cases but not for CADCurvePolygons.
It is working fine after using cadEntity.AssignEntity for all copied entities,
Not sure why I have to copy the entities again????

Code: Select all

int nCount = 0
foreach(CADEntity cadEntity in cadImage.Converter.Entities)
{
     cadEntity.AssignEntity(m_cadEditorControl.Image.SelectedEntities[nCount]);
     nCount++
}

but these new CADEntities(CADCurvePolygons) are getting reset(CADCurvePolygon.Boundaries return 0) if I use cadImage.SetNewPosEntity.

Code: Select all

foreach(CADEntity cadEntity in cadImage.Converter.Entities)
{
    cadImage.SetNewPosEntity(100, 100, 0, cadEntity);
}

What is the best way to create a new CADImage using the selected CADEntities(in CADEditorControl)?


Thanks
Ravi

[support]

Hello Ravi,

You may try the another way: create a new temporary layout for the existing CADImage, copy the selected entities onto this layout, set the layout as current, then save it as bitmap using a CADImage.SaveToFile method. For example:

Code: Select all

using CADImport;
...

	SaveFileDialog saveDialog;
	public Form1()
	{
	    InitializeComponent();
	    saveDialog = new SaveFileDialog();
	    saveDialog.Filter = "Bitmap(*.bmp)|*.bmp";
	}

...

 	if (cadEditorControl1.Image == null || saveDialog.ShowDialog() != DialogResult.OK) return;
	CADImage img;
	CADLayout newlay = new CADLayout();
	newlay.Name = "Layout1";

	img = cadEditorControl1.Image;
	CADLayout prevLayout = img.CurrentLayout;
	img.Converter.AddLayout(newlay);
	foreach (CADEntity ent in img.SelectedEntities)
	{
	    newlay.AddEntity(ent);
	}
	img.GetExtents();
	img.CurrentLayout = newlay;
	img.ClearSelection();
	img.ClearMarkers();
	DRect imgRect = new DRect(0, 0, img.PureExtents.Width, img.PureExtents.Height);
	img.SaveToFile(saveDialog.FileName, System.Drawing.Imaging.ImageFormat.Bmp, imgRect);
	img.CurrentLayout = prevLayout;
	img.Layouts.Entities.Remove(newlay);

Mikhail