Returns the origin of the screen.
Gets the corners of the view's rectangle. The two points that define the corners of the view's rectangle in model coordinates.
The origin of a plan view is not meaningful.
View.CropBox.Max.X(Y) / View.OutLine.Max.X(Y) == View.CropBox.Min.X(Y) / View.OutLine.Min.X(Y) == View.Scale
при вращении колеса мыши камера действительно перемещается в направлении взгляда.
IList<XYZ> corners = uiview.GetZoomCorners();
var plane = Plane.CreateByNormalAndOrigin(doc.ActiveView.ViewDirection, doc.ActiveView.Origin);
SketchPlane skp = SketchPlane.Create(doc, plane);
doc.Create.NewModelCurve(Line.CreateBound(corners[0], corners[1]), skp);