ArcGIS Pro 3.3 API Reference Guide
ArcGIS.Core.Geometry Namespace / IGeometryEngine Interface / ConstructMultipatchExtrudeFromToZ Method
The base geometry.
The Z-value of the base.
The Z-value of the top.
Example

In This Topic
    ConstructMultipatchExtrudeFromToZ Method (IGeometryEngine)
    In This Topic
    Creates a multipatch from the input polygon or polyline.
    Syntax
    Multipatch ConstructMultipatchExtrudeFromToZ( 
       Multipart multipart,
       double fromZ,
       double toZ
    )
    Function ConstructMultipatchExtrudeFromToZ( _
       ByVal multipart As Multipart, _
       ByVal fromZ As Double, _
       ByVal toZ As Double _
    ) As Multipatch

    Parameters

    multipart
    The base geometry.
    fromZ
    The Z-value of the base.
    toZ
    The Z-value of the top.

    Return Value

    Returns the multipatch.
    Exceptions
    ExceptionDescription
    Geometry is null or empty.
    The geometry is not Z-Aware.
    Remarks
    Creates a multipatch from a base geometry by extruding the base geometry along the Z-axis from a given fromZ input to a given toZ input. The base Z-values of the geometry are uniformly set to the fromZ input and the top Z-values are uniformly set to the toZ value. The resulting extrusion is always parallel to the xy-plane on both the base and the top.
    Example
    Construct Multipatch via Extrusion of Polygon or Polyline
    // build a polygon
    string json = "{\"hasZ\":true,\"rings\":[[[0,0,0],[0,1,0],[1,1,0],[1,0,0],[0,0,0]]],\"spatialReference\":{\"wkid\":4326}}";
    Polygon polygon = PolygonBuilderEx.FromJson(json);
    
    // extrude the polygon by an offset to create a multipatch
    Multipatch multipatch = GeometryEngine.Instance.ConstructMultipatchExtrude(polygon, 2);
    
    // a different polygon
    json = "{\"hasZ\":true,\"rings\":[[[0,0,1],[0,1,2],[1,1,3],[1,0,4],[0,0,1]]],\"spatialReference\":{\"wkid\":4326}}";
    polygon = PolygonBuilderEx.FromJson(json);
    
    // extrude between z values to create a multipatch
    multipatch = GeometryEngine.Instance.ConstructMultipatchExtrudeFromToZ(polygon, -10, 20);
    
    // extrude along the axis defined by the coordinate to create a multipatch
    Coordinate3D coord = new Coordinate3D(10, 18, -10);
    multipatch = GeometryEngine.Instance.ConstructMultipatchExtrudeAlongVector3D(polygon, coord);
    
    // build a polyline
    json = "{\"hasZ\":true,\"paths\":[[[400,800,1000],[800,1400,1500],[1200,800,2000],[1800,1800,2500],[2200,800,3000]]],\"spatialReference\":{\"wkid\":3857}}";
    Polyline polyline = PolylineBuilderEx.FromJson(json);
    
    // extrude to a specific z value to create a multipatch
    multipatch = GeometryEngine.Instance.ConstructMultipatchExtrudeToZ(polyline, 500);
    
    Coordinate3D fromCoord = new Coordinate3D(50, 50, -500);
    Coordinate3D toCoord = new Coordinate3D(200, 50, 1000);
    
    // extrude between two coordinates to create a multipatch
    multipatch = GeometryEngine.Instance.ConstructMultipatchExtrudeAlongLine(polyline, fromCoord, toCoord);
    
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also