1/// <summary>
 2/// Illustrates accessing Surface properties
 3/// </summary>
 4[CommandMethod("SurfaceProperties")]
 5public void SurfaceProperties()
 6{
 7    using (Transaction ts = Application.DocumentManager.MdiActiveDocument.Database.TransactionManager.StartTransaction())
 8    {
 9        try
10        {
11            // Get the first surface in a document    
12            // "doc" is the CivilApplication.ActiveDocument
13            ObjectId surfaceId = doc.GetSurfaceIds()[0];
14            CivSurface oSurface = surfaceId.GetObject(OpenMode.ForRead) as CivSurface;
15
16            // print out general properties:
17            GeneralSurfaceProperties genProps = oSurface.GetGeneralProperties();
18            String propsMsg = "\nGeneral Properties for " + oSurface.Name;
19            propsMsg += "\n-------------------";
20            propsMsg += "\nMin X: " + genProps.MinimumCoordinateX;
21            propsMsg += "\nMin Y: " + genProps.MinimumCoordinateY;
22            propsMsg += "\nMin Z: " + genProps.MinimumElevation;
23            propsMsg += "\nMax X: " + genProps.MaximumCoordinateX;
24            propsMsg += "\nMax Y: " + genProps.MaximumCoordinateY;
25            propsMsg += "\nMax Z: " + genProps.MaximumElevation;
26            propsMsg += "\nMean Elevation: " + genProps.MeanElevation;
27            propsMsg += "\nNumber of Points: " + genProps.NumberOfPoints;
28            propsMsg += "\n--";
29
30            editor.WriteMessage(propsMsg);
31
32            // Depending on the surface type, let's look at grid or TIN properties:
33
34            if (oSurface is TinSurface)
35            {
36                TinSurfaceProperties tinProps = ((TinSurface)oSurface).GetTinProperties();
37                propsMsg = "\nTIN Surface Properties for " + oSurface.Name;
38                propsMsg += "\n-------------------";
39                propsMsg += "\nMin Triangle Area: " + tinProps.MinimumTriangleArea;
40                propsMsg += "\nMin Triangle Length: " + tinProps.MinimumTriangleLength;
41                propsMsg += "\nMax Triangle Area: " + tinProps.MaximumTriangleArea;
42                propsMsg += "\nMax Triangle Length: " + tinProps.MaximumTriangleLength;
43                propsMsg += "\nNumber of Triangles: " + tinProps.NumberOfTriangles;
44                propsMsg += "\n--";
45
46                editor.WriteMessage(propsMsg);
47            }
48            else if (oSurface is GridSurface)
49            {
50                GridSurfaceProperties gridProps = ((GridSurface)oSurface).GetGridProperties();
51                propsMsg = "\\Grid Surface Properties for " + oSurface.Name;
52                propsMsg += "\n-------------------";
53                propsMsg += "\n X Spacing: " + gridProps.SpacingX;
54                propsMsg += "\n Y Spacing: " + gridProps.SpacingY;
55                propsMsg += "\n Orientation: " + gridProps.Orientation;
56                propsMsg += "\n--";
57
58                editor.WriteMessage(propsMsg);
59            }
60
61        }
62        catch (System.Exception e) { editor.WriteMessage(e.Message); }
63    }
64}