I found some Python code by @mzjensen to change the layer visibility/ freeze parameter for the layers in the modelspace. I was wondering if a similar method could be used to change the visibility parameter per viewport:
# Load the Python Standard and DesignScript Libraries
import sys
import clr
# Add Assemblies for AutoCAD and Civil3D
clr.AddReference('AcMgd')
clr.AddReference('AcCoreMgd')
clr.AddReference('AcDbMgd')
clr.AddReference('AecBaseMgd')
clr.AddReference('AecPropDataMgd')
clr.AddReference('AeccDbMgd')
# Import references from AutoCAD
from Autodesk.AutoCAD.Runtime import *
from Autodesk.AutoCAD.ApplicationServices import *
from Autodesk.AutoCAD.EditorInput import *
from Autodesk.AutoCAD.DatabaseServices import *
from Autodesk.AutoCAD.Geometry import *
# Import references from Civil3D
from Autodesk.Civil.ApplicationServices import *
from Autodesk.Civil.DatabaseServices import *
adoc = Application.DocumentManager.MdiActiveDocument
editor = adoc.Editor
def set_layer_on_off(layers,bool):
if layers is None:
return None
if bool is None:
return None
errorReport = None
name=[]
global adoc
with adoc.LockDocument():
with adoc.Database as db:
with db.TransactionManager.StartTransaction() as t:
for layer in layers:
lt=t.GetObject(db.LayerTableId,OpenMode.ForWrite)
try:
if lt.Has(layer):
i = t.GetObject(lt[layer], OpenMode.ForWrite)
i.IsOff=bool
name.append(i.Name)
# Error handling
except:
import traceback
t.Commit()
if errorReport == None:
return name
else:
return errorReport
OUT = set_layer_on_off(IN[0],IN[1])
PS: This Dynamo script for me is a work in progress so I’ll post updates in this topic when I find some more information/ (parts of the) solution periodically.
You can’t access the VP Frozen property directly from the layer. There is a function GetViewportOverrides([viewport id]) that returns the color, linetype and so on, and the layer itself has properties that tell if a layer has overrides.
But if you want to see or set the frozen layers you need to access them via the viewport object. More info about that:
private void VPLOOP()
{
Document doc = Core.Application.DocumentManager.MdiActiveDocument;
Autodesk.AutoCAD.GraphicsSystem.Manager gsm = Core.Application.DocumentManager.MdiActiveDocument.GraphicsManager;
Database db = doc.Database;
Editor ed = doc.Editor;
LayoutManager lm = LayoutManager.Current;
int x = 0;
List<string> layers = new List<string>();
foreach (AcadLayer layer in ThisDrawing.Layers) {
layers.Add(layer.Name);
}
using (tr == db.TransactionManager.StartTransaction()) {
ObjectId idLay = default(ObjectId);
ObjectId idLayTblRcd = default(ObjectId);
LayerTableRecord lt = default(LayerTableRecord);
Point3d llc = default(Point3d);
Point3d urc = default(Point3d);
// Save the name of the current layout
currentLayout = lm.CurrentLayout;
ObjectId loid = LayoutManager.Current.GetLayoutId(lm.CurrentLayout);
Layout lo = tr.GetObject(loid, OpenMode.ForRead);
//For Each de As DBDictionaryEntry In layoutDict
lm.CurrentLayout = currentLayout;
string layoutName = lo.LayoutName;
if (x == 0 && layoutName != "Model") {
//Loop thru layout viewports
//Note, the first vp is the layout vp itself
ObjectIdCollection vpIdCol = lo.GetViewports();
//Looping through the collection of viewports
foreach (ObjectId vpId in vpIdCol) {
Viewport vp = vpId.GetObject(OpenMode.ForRead);
//Make sure we're not checking the overall layout viewport
if (vp.Number > 1) {
LayerTable ltt = (LayerTable)tr.GetObject(db.LayerTableId, OpenMode.ForRead, false);
foreach (string lname in layers) {
idLay = ltt(lname);
lt = tr.GetObject(idLay, OpenMode.ForRead);
if (ltt.Has(lname)) {
idLayTblRcd = ltt.Item(lname);
} else {
ed.WriteMessage("Layer: \"" + lname + "\" not available");
VPortX = VPortX + 1;
break;
}
if (vpId.IsNull()) {
ed.WriteMessage("No Viewport current.");
VPortX = VPortX + 1;
//I would rather just 'Exit Sub' but the transaction needs to be disposed, so we go down to that point in the code.
goto endusing;
}
if (!vp.IsLayerFrozenInViewport(idLayTblRcd)) {
LayerTableRecord newLayer = (DatabaseServices.LayerTableRecord)db.TransactionManager.GetObject(idLayTblRcd, DatabaseServices.OpenMode.ForRead);
if (!newLayer.IsFrozen && !newLayer.IsOff) {
int vpn = vp.Number - 1;
if (!ValidLayers.Contains(newLayer.Name + "," + vpn.ToString())) {
ValidLayers.Add(newLayer.Name + "," + vpn.ToString());
}
}
}
}
//Continuing the loop if the viewport has been erased
if (vp.IsErased) {
continue;
}
//This is run if the viewport isn't a rectangle
if (vp.NonRectClipOn) {
//Adding the number of viewports
NumberVPorts = NumberVPorts + 1;
ObjectId nonrectoid = vp.NonRectClipEntityId;
Polyline nrvp = tr.GetObject(nonrectoid, OpenMode.ForRead);
Point3dCollection stretchPoints = new Point3dCollection();
nrvp.GetStretchPoints(stretchPoints);
//Adding up the number of vertices
VPortVertices.Add(stretchPoints.Count + 1);
Point2d firstpt = default(Point2d);
for (i = 0; i <= stretchPoints.Count - 1; i++) {
Point3d newpt = new Point3d(stretchPoints(i).X, stretchPoints(i).Y, stretchPoints(i).Z);
Vector3d newvect = vp.CenterPoint.GetAsVector;
newpt = newpt.Subtract(newvect);
newpt = newpt.MultiplyBy(1.0 / vp.CustomScale);
Autodesk.AutoCAD.GraphicsSystem.View vpview = new Autodesk.AutoCAD.GraphicsSystem.View();
gsm.SetViewFromViewport(vpview, vp.Number);
Matrix3d viewmat = vpview.ViewingMatrix.Inverse();
Point3d newpt3d = newpt.TransformBy(viewmat);
Point2d newpt2d = new Point2d(newpt3d.X, newpt3d.Y);
//Adding each point into the list of coordinates
VPortCoordinates.Add(newpt2d);
if (i == 0) {
firstpt = newpt2d;
}
if (i == stretchPoints.Count - 1) {
//And adding the first point again, so we can go around in a circle
VPortCoordinates.Add(firstpt);
}
}
//This is run if it is a rectangle
} else {
llc = vp.Bounds.Value.MinPoint;
urc = vp.Bounds.Value.MaxPoint;
llc = llc.Subtract(vp.CenterPoint.GetAsVector);
urc = urc.Subtract(vp.CenterPoint.GetAsVector);
llc = llc.MultiplyBy(1.0 / vp.CustomScale);
urc = urc.MultiplyBy(1.0 / vp.CustomScale);
Autodesk.AutoCAD.GraphicsSystem.View vpview = new Autodesk.AutoCAD.GraphicsSystem.View();
gsm.SetViewFromViewport(vpview, vp.Number);
Matrix3d viewmat = vpview.ViewingMatrix.Inverse();
Point3d newllc = llc.TransformBy(viewmat);
Point3d newurc = urc.TransformBy(viewmat);
Point2d llc2d = new Point2d(newllc.X, newllc.Y);
Point2d lrc2d = new Point2d(newurc.X, newllc.Y);
Point2d urc2d = new Point2d(newurc.X, newurc.Y);
Point2d ulc2d = new Point2d(newllc.X, newurc.Y);
//Adding the vertices and number of viewports
VPortVertices.Add(5);
NumberVPorts = NumberVPorts + 1;
//Adding each coordinate in, and the first again
VPortCoordinates.Add(llc2d);
VPortCoordinates.Add(lrc2d);
VPortCoordinates.Add(urc2d);
VPortCoordinates.Add(ulc2d);
VPortCoordinates.Add(llc2d);
}
}
}
}
x = x + 1;
//Next
lm.CurrentLayout = currentLayout;
endusing:
//Dispose of the transaction
}
}
