//step 1. render dxf data from unscaledGraphicalData to bitmapInitial. Also initialize bitmapInitial. currentscalefactor should be set up beforehand
public void drawImageToBitmapUsingCurrentScaleFactor()
{
double bitmapInitialWidth = Math.Abs(this.unscaledGraphicalData.XLowerLeft - this.unscaledGraphicalData.XUpperRight);
double bitmapInitialHeight = Math.Abs(this.unscaledGraphicalData.YLowerLeft - this.unscaledGraphicalData.YUpperRight);
//you know, dxf file might not be located at 0; 0 as lower Left. So I apply movement coefficients
double unscaledOffsetX = this.unscaledGraphicalData.XLowerLeft;
double unscaledOffsetY = this.unscaledGraphicalData.YLowerLeft;
double newWidthPrescaled = currentscalefactor * bitmapInitialWidth;
double newHeightPrescaled = currentscalefactor * bitmapInitialHeight;
bitmapInitial = new Bitmap((int)Math.Round(newWidthPrescaled) + 1, (int)Math.Round(newHeightPrescaled) + 1);
using (Graphics ee = Graphics.FromImage(bitmapInitial))
{
ee.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;
ee.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
// RENDERING CODE GOES HERE !
foreach (DXFRendering.GRAPHICAL.DXFentryForDisplay item in unscaledGraphicalData)
{
if (item is DXFRendering.GRAPHICAL.MyDxfLineForDisplay)
{
DXFRendering.GRAPHICAL.MyDxfLineForDisplay lineEntry = (item as DXFRendering.GRAPHICAL.MyDxfLineForDisplay);
ee.DrawLine(lineEntry.penStructure, (float)((lineEntry.XStart - unscaledOffsetX) * currentscalefactor), (float)((lineEntry.YStart - unscaledOffsetY) * currentscalefactor),
(float)((lineEntry.XEnd - unscaledOffsetX) * currentscalefactor), (float)((lineEntry.YEnd - unscaledOffsetY) * currentscalefactor));
}
else if (item is DXFRendering.GRAPHICAL.MyDxfArcForDisplay)
{
DXFRendering.GRAPHICAL.MyDxfArcForDisplay arcEntry = (item as DXFRendering.GRAPHICAL.MyDxfArcForDisplay);
ee.DrawArc(arcEntry.penStructure,
(float)((arcEntry.XUpper - unscaledOffsetX) * currentscalefactor), (float)((arcEntry.YUpper - unscaledOffsetY) * currentscalefactor),
(float)(arcEntry.Width * currentscalefactor), (float)(arcEntry.Height * currentscalefactor),
(float)arcEntry.startAngle, (float)arcEntry.sweepAngle);
}
}
}
bitmapInitial.RotateFlip(RotateFlipType.RotateNoneFlipY);
this.VerticalScroll.Value = 0; this.HorizontalScroll.Value = 0;
realPaintingCanvas.Width = bitmapInitial.Width; realPaintingCanvas.Height = bitmapInitial.Height;
realPaintingCanvas.Location = new Point(0, 0);
bitmapRender = bitmapInitial.Clone(new Rectangle(0, 0, bitmapInitial.Width, bitmapInitial.Height), bitmapInitial.PixelFormat);
}
//step 0. get the file structure from dxf and gradually turn it into drawing struct
public void prepareGraphicalDataStruct(DXFRendering.LOGICAL.completeDxfStruct in_structFromFile)
{
unscaledGraphicalData = new DXFRendering.GRAPHICAL.CompleteDxfDrawingStruct();
int lngthOfStruct = in_structFromFile.getSize();
for (int i = 0; i < lngthOfStruct; i++) //read and convert entries from supplied struct to display struct with data ready to display
{
DXFRendering.LOGICAL.DXFdrawingEntry someEntry = in_structFromFile.getItemByIndex(i);
Pen usedPen = null;
if ((collectionOfLayerDefinitions != null) && (collectionOfLayerDefinitions.ContainsKey(someEntry.layerIdentifier)))
{
usedPen = collectionOfLayerDefinitions[someEntry.layerIdentifier].Item2;
}
else
{
usedPen = new Pen(Color.Black);
}
DXFRendering.LOGICAL.MyDxfBoundingBox tmpboundbox = someEntry.GetBoundingBox();
DXFRendering.GRAPHICAL.DXFentryForDisplay tmpEntry2 = null;
if (someEntry is DXFRendering.LOGICAL.MyDxfLine)
{
tmpEntry2 = new DXFRendering.GRAPHICAL.MyDxfLineForDisplay(
(someEntry as DXFRendering.LOGICAL.MyDxfLine).XStart,
(someEntry as DXFRendering.LOGICAL.MyDxfLine).YStart,
(someEntry as DXFRendering.LOGICAL.MyDxfLine).XEnd,
(someEntry as DXFRendering.LOGICAL.MyDxfLine).YEnd, usedPen);
}
else if (someEntry is DXFRendering.LOGICAL.MyDxfArc)
{
DXFRendering.LOGICAL.MyDxfArc castArc = someEntry as DXFRendering.LOGICAL.MyDxfArc;
tmpEntry2 = new DXFRendering.GRAPHICAL.MyDxfArcForDisplay(castArc.XCenter, castArc.YCenter, castArc.Radius, castArc.StartAngleDegree, castArc.EndAngleDegree, usedPen);
}
// distilled it
this.unscaledGraphicalData.addSingleEntry(tmpEntry2, tmpboundbox.XLowerLeft, tmpboundbox.YLowerLeft, tmpboundbox.XUpperRight, tmpboundbox.YUpperRight);
}
}
