.NET

[#1]

I have a view on paper pace : Name "1200-900"  size : 1200 x 900 unit  (Unit : mm)

my little prg vb.bet :

.....

                Dim tr As Transaction = db.TransactionManager.StartTransaction()

                Using (tr)
                    'Dim bt As BlockTable = tr.GetObject(db.BlockTableId, OpenMode.ForRead)
                    Dim btr As BlockTableRecord = tr.GetObject(db.CurrentSpaceId, OpenMode.ForRead)
                    Dim lo As Layout = tr.GetObject(btr.LayoutId, OpenMode.ForRead)



                    Dim pi As PlotInfo = New PlotInfo()
                    pi.Layout = btr.LayoutId


                    '// We need a PlotSettings object
                    '// based on the layout settings
                    '// witch we then customize



                    Dim ps As PlotSettings = New PlotSettings(lo.ModelType)
                    ps.CopyFrom(lo)

                    '// The PlotSettingsValidator helps
                    '// create a valid PlotSettings object

                    Dim psv As PlotSettingsValidator = PlotSettingsValidator.Current

                    'retrieve the name of vue
                    Dim NomView As String = ChoixVue()

                    If NomView <> "" Then
                        psv.SetPlotViewName(ps, NomView) '"1200-900")
                        psv.SetPlotType(ps, Autodesk.AutoCAD.DatabaseServices.PlotType.View)


                        'HERE MY PROB !!
                        psv.SetPlotPaperUnits(ps, PlotPaperUnit.Millimeters)
                        
                        'psv.SetUseStandardScale(ps, True)
                        'psv.SetStdScaleType(ps, StdScaleType.StdScale1To50)
                        'Dim Scale As CustomScale = New CustomScale(1, 30)
                        'psv.SetStdScale(ps, 0.0)
                        'psv.SetCustomPrintScale(ps, Scale)


                        'psv.SetPlotCentered(ps, True)
                        'psv.RefreshLists(ps)

                        '***** Format paper


                        
                        psv.SetPlotConfigurationName(ps, "DWG To PDF(Ce).pc3", "UserDefinedMetric (900.00 x 1500.00mm)")
                        '// We need to link the PlotInfo to the
                        '// PlotSettings and then validate it

                        pi.OverrideSettings = ps
                        Dim piv As PlotInfoValidator = New PlotInfoValidator()

                        piv.MediaMatchingPolicy = MatchingPolicy.MatchEnabled
                        piv.Validate(pi)


                        If PlotFactory.ProcessPlotState = ProcessPlotState.NotPlotting Then


.......

 I cant understand the :

- psv.SetStdScaleType(ps, StdScaleType.xxxx)

--> If i use 1to1 i dont see my drawing

--> if i use 1to 20 i see my draw  

but i want create a draw with exacty the size of my view. (The size is already finewith the paper of my DesignJet T610)

So how i can just retrieve the good page layout. (CTRL+P and enter work fine)

How is calculate the StdScaleType.StdScale1To50  or StdScaleType.StdScale1To1 ?

[#2]

psv.SetPlotPaperUnits(ps, PlotPaperUnit.Millimeters)
Dim Scale As CustomScale = New CustomScale(1, 25.4)
psv.SetCustomPrintScale(ps, Scale)

I have now my correct size --> i have to scale the view with the ratio of 25.4 (Inche / mm)

i have set my plotpaperunits to mm  but why i need to convert the scale to units inche ?

why ?

How i can set the corret units to mm ?

[#3]

I'm not really a Plot expert, but what are the UNITS of the DWG setup to be?