static public void selectMsFromPs()
{
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
// pick a PS Viewport
PromptEntityOptions opts = new PromptEntityOptions("Pick PS Viewport");
opts.SetRejectMessage("Must select PS Viewport objects only");
opts.AddAllowedClass(typeof(Autodesk.AutoCAD.DatabaseServices.Viewport), false);
PromptEntityResult res = ed.GetEntity(opts);
if (res.Status == PromptStatus.OK)
{
int vpNumber = 0;
// extract the viewport points
Point3dCollection psVpPnts = new Point3dCollection();
using (Autodesk.AutoCAD.DatabaseServices.Viewport psVp = res.ObjectId.Open(OpenMode.ForRead)
as Autodesk.AutoCAD.DatabaseServices.Viewport)
{
// get the vp number
vpNumber = psVp.Number;
// now extract the viewport geometry
psVp.GetGripPoints(psVpPnts, new IntegerCollection(), new IntegerCollection());
}
// let's assume a rectangular vport for now, make the cross-direction grips square
Point3d tmp = psVpPnts[2];
psVpPnts[2] = psVpPnts[1];
psVpPnts[1] = tmp;
// Transform the PS points to MS points
ResultBuffer rbFrom = new ResultBuffer(new TypedValue(5003, 3));
ResultBuffer rbTo = new ResultBuffer(new TypedValue(5003, 2));
double[] retPoint = new double[] { 0, 0, 0 };
// loop the ps points
Point3dCollection msVpPnts = new Point3dCollection();
foreach (Point3d pnt in psVpPnts)
{
// translate from from the DCS of Paper Space (PSDCS) RTSHORT=3 and
// the DCS of the current model space viewport RTSHORT=2
acedTrans(pnt.ToArray(), rbFrom.UnmanagedObject, rbTo.UnmanagedObject, 0, retPoint);
// add the resulting point to the ms pnt array
msVpPnts.Add(new Point3d(retPoint));
ed.WriteMessage("\n" + new Point3d(retPoint).ToString());
}
// now switch to MS
ed.SwitchToModelSpace();
// set the CVPort
Application.SetSystemVariable("CVPORT", vpNumber);
// once switched, we can use the normal selection mode to select
PromptSelectionResult selectionresult = ed.SelectCrossingPolygon(msVpPnts);
// now switch back to PS
ed.SwitchToPaperSpace();
}
}
/// <summary>
/// Sets the size of the viewport according to the provided extents.
/// </summary>
/// <param name="ext">The extents of the viewport on the page.</param>
/// <param name="fac">Optional factor to provide padding.</param>
public static void ResizeViewport(this Autodesk.AutoCAD.DatabaseServices.Viewport vp, Extents2d ext, double fac,
int num, int i)
{
vp.CenterPoint = new Point3d(ext.MaxPoint.X * fac / 2 + 1.2, ext.MaxPoint.Y * fac / 3 / 2 * num + 1, 0);
vp.Width = ext.MaxPoint.X * fac + 2;
//- ext.MinPoint.X)- ext.MinPoint.Y)
vp.Height = ext.MaxPoint.Y * fac / 3;
double zuobiao = 175 * (2 * i + 1);
// vp.ViewTarget = new Point3d(zuobiao, 10,0);
vp.ViewCenter = new Point2d(zuobiao, 5);
// vp.StandardScale = StandardScaleType.Scale1To10;
vp.ViewHeight = 70;
//网格
vp.GridOn = false;
}
/// <summary>
/// Applies an action to the specified viewport from this layout.
/// Creates a new viewport if none is found withthat number.
/// </summary>
/// <param name="tr">The transaction to use to open the viewports.</param>
/// <param name="vpNum">The number of the target viewport.</param>
/// <param name="f">The action to apply to each of the viewports.</param>
public static void ApplyToViewport(this Layout lay, Transaction tr, int vpNum, Action <Viewport> f)
{
var vpIds = lay.GetViewports();
Autodesk.AutoCAD.DatabaseServices.Viewport vp = null;
foreach (ObjectId vpId in vpIds)
{
var vp2 = tr.GetObject(vpId, OpenMode.ForWrite) as Autodesk.AutoCAD.DatabaseServices.Viewport;
if (vp2 != null && vp2.Number == vpNum)
{
// We have found our viewport, so call the action
vp = vp2;
break;
}
}
if (vp == null)
{
// We have not found our viewport, so create one
var btr =
(BlockTableRecord)tr.GetObject(lay.BlockTableRecordId, OpenMode.ForWrite);
vp = new Autodesk.AutoCAD.DatabaseServices.Viewport();
// Add it to the database
btr.AppendEntity(vp);
tr.AddNewlyCreatedDBObject(vp, true);
// Turn it - and its grid - on
vp.On = true;
vp.GridOn = true;
}
// Finally we call our function on it
f(vp);
}
/// <summary>
/// Sets the view in a viewport to contain the specified model extents.
/// </summary>
/// <param name="ext">The extents of the content to fit the viewport.</param>
/// <param name="fac">Optional factor to provide padding.</param>
public static void FitContentToViewport(this Autodesk.AutoCAD.DatabaseServices.Viewport vp, Extents3d ext, double fac = 1.0)
{
// Let's zoom to just larger than the extents
/* vp.ViewCenter =
*
* (ext.MinPoint + ((ext.MaxPoint - ext.MinPoint) * 0.5)).Strip();*/
// Get the dimensions of our view from the database extents
var hgt = ext.MaxPoint.Y - ext.MinPoint.Y;
var wid = ext.MaxPoint.X - ext.MinPoint.X;
// We'll compare with the aspect ratio of the viewport itself
// (which is derived from the page size)
var aspect = vp.Width / vp.Height;
// If our content is wider than the aspect ratio, make sure we
// set the proposed height to be larger to accommodate the
// content
if (wid / hgt > aspect)
{
hgt = wid / aspect;
}
// Set the height so we're exactly at the extents
vp.ViewHeight = hgt;
// Set a custom scale to zoom out slightly (could also
// vp.ViewHeight *= 1.1, for instance)
vp.CustomScale *= fac;
}
public void ApplyPaperOrientationTransform(Autodesk.AutoCAD.DatabaseServices.Viewport viewport)
{
createInstance();
BaseDBObject.ApplyPaperOrientationTransform(viewport);
tr.Dispose();
}
public void CreateLayout()
{
using (AcadDb.Transaction tr = AcadFuncs.GetActiveDb().TransactionManager.StartTransaction())
{
AcadDb.LayoutManager layout_man = AcadDb.LayoutManager.Current;
AcadDb.ObjectId layout_id = layout_man.CreateLayout("My_Layout");
layout_man.SetCurrentLayoutId(layout_id);
AcadDb.Layout layout = tr.GetObject(layout_id, AcadDb.OpenMode.ForRead) as AcadDb.Layout;
if (null == layout)
{
return;
}
AcadDb.BlockTableRecord blk_tbl_rcd = tr.GetObject(layout.BlockTableRecordId, AcadDb.OpenMode.ForRead)
as AcadDb.BlockTableRecord;
if (null == blk_tbl_rcd)
{
return;
}
AcadDb.ObjectIdCollection vp_ids = layout.GetViewports();
AcadDb.Viewport vp = null;
foreach (AcadDb.ObjectId vp_id in vp_ids)
{
AcadDb.Viewport vp2 = tr.GetObject(vp_id, AcadDb.OpenMode.ForWrite) as AcadDb.Viewport;
if (null != vp2 && 2 == vp2.Number)
{
vp = vp2;
break;
}
}
if (null == vp)
{
vp = new AcadDb.Viewport();
blk_tbl_rcd.UpgradeOpen();
blk_tbl_rcd.AppendEntity(vp);
tr.AddNewlyCreatedDBObject(vp, true);
vp.On = true;
vp.GridOn = true;
}
vp.ViewCenter = new AcadGeo.Point2d(0.0, 0.0);
double scale = 0;
{
AcadEd.PromptDoubleOptions prmpt_pnt = new AcadEd.PromptDoubleOptions("Nhập scale:");
AcadEd.PromptDoubleResult prmpt_ret = AcadFuncs.GetEditor().GetDouble(prmpt_pnt);
if (AcadEd.PromptStatus.Cancel == prmpt_ret.Status)
{
tr.Abort();
tr.Dispose();
return;
}
scale = prmpt_ret.Value;
}
vp.CustomScale = scale;
vp.Locked = true;
tr.Commit();
}
}
public static void Viewport_Create(this Layout layout, Project_Setup.Viewport vpinfo, Document doc)
{
Database db = doc.Database;
Editor ed = doc.Editor;
using (DocumentLock doclock = doc.LockDocument())
{
using (Transaction tr = db.TransactionManager.StartTransaction())
{
// Get the BlockTableRecord so you can add to it
BlockTable blt = tr.GetObject(db.BlockTableId,
OpenMode.ForRead) as BlockTable;
BlockTableRecord btr_paper = tr.GetObject(blt[BlockTableRecord.PaperSpace],
OpenMode.ForWrite) as BlockTableRecord;
//change the current space to Paper
ed.SwitchToPaperSpace();
//switch current layer to viewport layer
Autodesk.AutoCAD.ApplicationServices.Application.SetSystemVariable("CLAYER", "x-vport");
doc.LayerManagement("Lock", "x-vport", false);
// create a new viewport
Autodesk.AutoCAD.DatabaseServices.Viewport vp = new Autodesk.AutoCAD.DatabaseServices.Viewport();
vp.Width = vpinfo.Width;
vp.Height = vpinfo.Height;
vp.CenterPoint = vpinfo.CenterPoint;
// Add the viewport to the PaperSpaceRecord
btr_paper.AppendEntity(vp);
tr.AddNewlyCreatedDBObject(vp, true);
//add all the corresponding viewport properties
vp.ViewCenter = vpinfo.ViewCenter;
vp.ViewHeight = vpinfo.ViewHeight;
vp.ViewTarget = vpinfo.ViewTarget;
vp.FreezeLayersInViewport(vpinfo.FrznLayers.GetEnumerator());
try
{
vp.StandardScale = vpinfo.StandardScale;
}
catch (Autodesk.AutoCAD.Runtime.Exception aex)
{
if (aex.ErrorStatus == ErrorStatus.InvalidInput)
{
vp.CustomScale = vpinfo.CustomScale;
}
}
//Enables the viewport
vp.On = true;
Autodesk.AutoCAD.ApplicationServices.Application.SetSystemVariable("CLAYER", "0");
tr.Commit();
}
}
}
