public static void ZoomToExtents(this Database database)
{
using (DBObject dbObj = GetActiveViewportId(database).GetObject(OpenMode.ForWrite))
{
// using protocol extensions we handle PS and MS viewports in the same manner
using (AbstractViewportData viewportData = new AbstractViewportData(dbObj))
{
using (Teigha.GraphicsSystem.View view = viewportData.GsView)
{
// do actual zooming - change GS view
using (AbstractViewPE viewPE = new AbstractViewPE(view))
{
BoundBlock3d boundBlock = new BoundBlock3d();
bool bBboxValid = viewPE.GetViewExtents(boundBlock);
// paper space overall view
if (dbObj is Viewport && ((Viewport)dbObj).Number == 1)
{
if (!bBboxValid || !(boundBlock.GetMinimumPoint().X < boundBlock.GetMaximumPoint().X&& boundBlock.GetMinimumPoint().Y < boundBlock.GetMaximumPoint().Y))
{
bBboxValid = GetLayoutExtents(database, view, ref boundBlock);
}
}
else if (!bBboxValid) // model space viewport
{
bBboxValid = GetLayoutExtents(database, view, ref boundBlock);
}
if (!bBboxValid)
{
// set to somewhat reasonable (e.g. paper size)
if (database.Measurement == MeasurementValue.Metric)
{
boundBlock.Set(Point3d.Origin, new Point3d(297.0, 210.0, 0.0)); // set to papersize ISO A4 (portrait)
}
else
{
boundBlock.Set(Point3d.Origin, new Point3d(11.0, 8.5, 0.0)); // ANSI A (8.50 x 11.00) (landscape)
}
boundBlock.TransformBy(view.ViewingMatrix);
}
viewPE.ZoomExtents(boundBlock);
boundBlock.Dispose();
}
// save changes to database
viewportData.SetView(view);
}
}
}
}
void zoom_extents(Teigha.GraphicsSystem.View pView, DBObject pVpObj)
{
// here protocol extension is used again, that provides some helpful functions
using (AbstractViewPE pVpPE = new AbstractViewPE(pView))
{
BoundBlock3d bbox = new BoundBlock3d();
bool bBboxValid = pVpPE.GetViewExtents(bbox);
// paper space overall view
if (pVpObj is Teigha.DatabaseServices.Viewport && ((Teigha.DatabaseServices.Viewport)pVpObj).Number == 1)
{
if (!bBboxValid || !(bbox.GetMinimumPoint().X < bbox.GetMaximumPoint().X&& bbox.GetMinimumPoint().Y < bbox.GetMaximumPoint().Y))
{
bBboxValid = get_layout_extents(database, pView, ref bbox);
}
}
else if (!bBboxValid) // model space viewport
{
bBboxValid = get_layout_extents(database, pView, ref bbox);
}
if (!bBboxValid)
{
// set to somewhat reasonable (e.g. paper size)
if (database.Measurement == MeasurementValue.Metric)
{
bbox.Set(Point3d.Origin, new Point3d(297.0, 210.0, 0.0)); // set to papersize ISO A4 (portrait)
}
else
{
bbox.Set(Point3d.Origin, new Point3d(11.0, 8.5, 0.0)); // ANSI A (8.50 x 11.00) (landscape)
}
bbox.TransformBy(pView.ViewingMatrix);
}
pVpPE.ZoomExtents(bbox);
}
}
public static void Zoom(this Database database, BoundBlock3d box)
{
using (var vtr = (ViewportTableRecord)database.CurrentViewportTableRecordId.GetObject(OpenMode.ForWrite))
{
// using protocol extensions we handle PS and MS viewports in the same manner
using (var vpd = new AbstractViewportData(vtr))
{
var view = vpd.GsView;
// do actual zooming - change GS view
// here protocol extension is used again, that provides some helpful functions
using (var vpe = new AbstractViewPE(view))
{
using (BoundBlock3d boundBlock3D = (BoundBlock3d)box.Clone())
{
boundBlock3D.TransformBy(view.ViewingMatrix);
vpe.ZoomExtents(boundBlock3D);
}
}
vpd.SetView(view);
}
}
//ReSize();
}
void PrintPage(object sender, PrintPageEventArgs ev)
{
if (m_pPrinterDevice != null)
{
using (DBObject pVpObj = Aux.active_viewport_id(database).GetObject(OpenMode.ForWrite))
{
using (AbstractViewportData pAV = new AbstractViewportData(pVpObj))
{
Teigha.GraphicsSystem.View pGSView = pAV.GsView;
PrintDocument prDoc = (PrintDocument)sender;
// Get printer paper info
Double dPrinterWidth = ev.PageBounds.Width;
Double dPrinterHeight = ev.PageBounds.Height;
Double dLogPixelX = ev.PageSettings.PrinterResolution.X; //dot per inch
Double dLogPixelY = ev.PageSettings.PrinterResolution.Y; //dot per inch
Double kMmPerInch = 25.4;
Double kMmPerHInch = 0.254;
Double koeffX = dLogPixelX / kMmPerInch;
Double koeffY = dLogPixelY / kMmPerInch;
Layout pLayout = (Layout)m_pPrinterDevice.LayoutId.GetObject(OpenMode.ForRead);
Boolean bScaledToFit = pLayout.UseStandardScale && (StdScaleType.ScaleToFit == pLayout.StdScaleType);
Boolean bCentered = pLayout.PlotCentered;
Boolean bMetric = (pLayout.PlotPaperUnits != PlotPaperUnit.Inches);
Boolean bPrintLW = pLayout.PrintLineweights || pLayout.ShowPlotStyles;
Point2d offsets = pLayout.PlotOrigin; // in mm
Extents2d ex2d = pLayout.PlotPaperMargins;
Double dLeftMargin = ex2d.MinPoint.X; // in mm
Double dRightMargin = ex2d.MaxPoint.X; // in mm
Double dTopMargin = ex2d.MinPoint.Y; // in mm
Double dBottomMargin = ex2d.MaxPoint.Y; // in mm
PlotType plotType = pLayout.PlotType;
PlotRotation plotRotation = pLayout.PlotRotation;
if (plotRotation == PlotRotation.Degrees090 || plotRotation == PlotRotation.Degrees270)
{
plotRotation = (plotRotation == PlotRotation.Degrees090) ? PlotRotation.Degrees270 : PlotRotation.Degrees090;
}
switch (plotRotation)
{
case PlotRotation.Degrees090:
Swap <Double>(dTopMargin, dRightMargin);
Swap <Double>(dBottomMargin, dLeftMargin);
Swap <Double>(dBottomMargin, dTopMargin);
Swap <Double>(dTopMargin, dRightMargin);
offsets = new Point2d(-offsets.X, -offsets.Y);
break;
case PlotRotation.Degrees180:
Swap <Double>(dRightMargin, dLeftMargin);
offsets = new Point2d(-offsets.X, -offsets.Y);
break;
case PlotRotation.Degrees270:
Swap <Double>(dTopMargin, dRightMargin);
Swap <Double>(dBottomMargin, dLeftMargin);
Swap <Double>(dBottomMargin, dTopMargin);
offsets = new Point2d(offsets.X, offsets.Y);
break;
}
// Get scale factor
double factor;
if (pLayout.UseStandardScale)
{
factor = pLayout.StdScale;
}
else
{
CustomScale scale = pLayout.CustomPrintScale;
factor = scale.Numerator / scale.Denominator;
}
// Calculate paper drawable area using margins from layout (in mm).
Double drx1 = (ev.MarginBounds.Left * kMmPerHInch + dLeftMargin); // in mm
Double drx2 = (ev.MarginBounds.Width * kMmPerHInch - dLeftMargin - dRightMargin); // in mm
Double dry1 = (ev.MarginBounds.Top * kMmPerHInch + dTopMargin); // in mm
Double dry2 = (ev.MarginBounds.Height * kMmPerHInch - dTopMargin - dBottomMargin); // in mm
Boolean bType = (plotType == PlotType.Display || plotType == PlotType.Layout);
AbstractViewPE pAbstractViewPE = new AbstractViewPE(bType ? pViewDr : pGSView);
// set LineWeight scale factor for model space
if (bPrintLW && database.TileMode)
{
Teigha.GraphicsSystem.View pTo = m_pPrinterDevice.ViewAt(0);
pTo.LineweightToDcScale = Math.Max(dLogPixelX, dLogPixelY) / kMmPerInch * 0.01;
}
Point3d viewTarget = pAbstractViewPE.Target;
Point3d viewportCenter = pAbstractViewPE.Target; // in plotPaperUnits
Boolean isPerspective = pAbstractViewPE.IsPerspective;
Double viewportH = pAbstractViewPE.FieldHeight; // in plotPaperUnits
Double viewportW = pAbstractViewPE.FieldWidth; // in plotPaperUnits
Vector3d viewDir = pAbstractViewPE.Direction; // in plotPaperUnits
Vector3d upV = pAbstractViewPE.UpVector; // in plotPaperUnits
Matrix3d eyeToWorld = pAbstractViewPE.EyeToWorld;
Matrix3d WorldToeye = pAbstractViewPE.WorldToEye;
Boolean isPlanView = viewDir.GetNormal().Equals(Vector3d.ZAxis);
Point3d oldTarget = viewTarget;
Double fieldWidth = viewportW, fieldHeight = viewportH;
if (plotType == PlotType.Display)
{
viewTarget = viewportCenter;
fieldWidth = viewportW;
fieldHeight = viewportH;
}
else if (plotType == PlotType.Extents || (plotType == PlotType.Limits && !isPlanView))
{
BoundBlock3d extents = new BoundBlock3d();
if (pAbstractViewPE.GetViewExtents(extents)) // pIter also skip 'off layers'
{
extents.TransformBy(eyeToWorld);
viewTarget = (extents.GetMinimumPoint() + extents.GetMaximumPoint().GetAsVector()) / 2.0;
extents.TransformBy(WorldToeye);
fieldWidth = Math.Abs(extents.GetMaximumPoint().X - extents.GetMinimumPoint().X);
fieldHeight = Math.Abs(extents.GetMaximumPoint().Y - extents.GetMinimumPoint().Y);
}
}
else if (plotType == PlotType.View)
{
viewTarget = viewportCenter;
fieldWidth = viewportW;
fieldHeight = viewportH;
}
else if (plotType == PlotType.Limits)
{
fieldWidth = (drx2 - drx1) / factor; // drx in mm -> fieldWidth in mm
fieldHeight = (dry2 - dry1) / factor;
viewTarget = new Point3d(fieldWidth / 2.0 - offsets.X / factor, fieldHeight / 2.0 - offsets.Y / factor, 0); // in mm
if (!bMetric)
{
viewTarget /= kMmPerInch; // must be in plotpaper units
fieldWidth /= kMmPerInch;
fieldHeight /= kMmPerInch;
}
bCentered = bScaledToFit = false; // kLayout doesn't support pIter.
}
if (plotType != PlotType.View)
{
viewTarget = viewTarget.OrthoProject(new Plane(oldTarget, viewDir));
}
pGSView.SetView(viewTarget + viewDir, viewTarget, upV, fieldWidth, fieldHeight, isPerspective ? Teigha.GraphicsSystem.Projection.Perspective : Teigha.GraphicsSystem.Projection.Parallel);
if (!bMetric)
{
fieldWidth *= kMmPerInch;
fieldHeight *= kMmPerInch;
}
if (bScaledToFit)
{
factor = Math.Min((drx2 - drx1) / fieldWidth, (dry2 - dry1) / fieldHeight);
}
if (bCentered) // Offset also can be incorectly saved.
{
offsets = new Point2d(((drx2 - drx1) - fieldWidth * factor) / 2.0,
((dry2 - dry1) - fieldHeight * factor) / 2.0);
if (plotRotation == PlotRotation.Degrees090 || plotRotation == PlotRotation.Degrees180)
{
offsets = new Point2d(-offsets.X, -offsets.Y);
}
}
pGSView.Viewport = new Extents2d(0, 0, 1, 1);
// Calculate viewport rect in printer units
//int x1 = (int)((offsets.X + drx1) * koeffX);
//int x2 = (int)((offsets.X + drx2) * koeffX);
//int y1 = (int)((-offsets.Y + dry1) * koeffY);
//int y2 = (int)((-offsets.Y + dry2) * koeffY);
int x1 = (int)(drx1 * koeffX);
int x2 = (int)(drx2 * koeffX);
int y1 = (int)(dry1 * koeffY);
int y2 = (int)(dry2 * koeffY);
Rectangle viewportRect = new Rectangle(x1, y1, x2, y2);
m_pPrinterDevice.OnSize(viewportRect);
if (m_pPrinterDevice.UnderlyingDevice.Properties.Contains("WindowHDC"))
{
m_pPrinterDevice.UnderlyingDevice.Properties.AtPut("WindowHDC", new RxVariant((Int32)ev.Graphics.GetHdc()));
}
m_pPrinterDevice.Update();
pAbstractViewPE.Dispose();
pLayout.Dispose();
}
}
}
}
