/// <summary>
/// Creates the structure (multipatch) from a given footprint and the number of floors
/// building a multipatch geometry using the new 2.5 MultipatchBuilderEx class
/// Must be called from MCT !!!
/// </summary>
/// <param name="floorFootPrint">footprint line features of wall</param>
/// <param name="floorLevels">Number of floors (4 meters/floor)</param>
/// <returns></returns>
public static MultipatchBuilderEx CreateTriangleMultipatchBuilder(Polygon floorFootPrint,
int floorLevels)
{
var heightInMeters = floorLevels * 7;
// create the multipatchBuilderEx object
var mpb = new ArcGIS.Core.Geometry.MultipatchBuilderEx();
// create a list of patch objects
var patches = new List <Patch>();
var coords = new List <Coordinate3D>();
// each line in the polygon makes up one 'face' (patch) for the multipatch
// the floor footprint is the baseline
// heightInMeters is the elevation
coords.AddRange(CoordsWithHeight(floorFootPrint, heightInMeters));
// to drape the faces with textures we have to using triangle patches
// with one patch for each wall and each wall with the following coordinates
// making two triangles per wall:
// upper right, upper left, lower left
// upper right, lower left, lower right
// the coords list contains for each wall:
// lower left, upper left, lower right, upper right
// process each wall:
for (var idx = 0; idx < coords.Count - 3; idx += 2)
{
var patch = mpb.MakePatch(esriPatchType.Triangles);
var wallCoords = GetWallCoordinates(coords, idx);
patch.Coords = wallCoords;
// if (idx == 0) ShowPatchLabels(patch);
patches.Add(patch);
}
// add the roof
var roofPatch = mpb.MakePatch(esriPatchType.TriangleFan);
var roofCoords = GetRoofCoordinates(coords);
roofPatch.Coords = roofCoords;
patches.Add(roofPatch);
// assign the patches to the multipatchBuilder
mpb.Patches = patches;
// call ToGeometry to get the multipatch
return(mpb);
}
// static method to hold the coordinates and code for building a multipatch geometry using the new 2.5 MultipatchBuilderEx class
public static Multipatch CreateTriangleMultipatchGeometry()
{
#region Coordinates
var coords_face1 = new List <Coordinate3D>()
{
new Coordinate3D(12.495461061000071, 41.902603910000039, 62.552700000000186),
new Coordinate3D(12.495461061000071, 41.902603910000039, 59.504700000004959),
new Coordinate3D(12.495461061000071, 41.902576344000067, 59.504700000004959),
new Coordinate3D(12.495461061000071, 41.902603910000039, 62.552700000000186),
new Coordinate3D(12.495461061000071, 41.902576344000067, 59.504700000004959),
new Coordinate3D(12.495461061000071, 41.902576344000067, 62.552700000000186),
};
var coords_face2 = new List <Coordinate3D>()
{
new Coordinate3D(12.495461061000071, 41.902576344000067, 62.552700000000186),
new Coordinate3D(12.495461061000071, 41.902576344000067, 59.504700000004959),
new Coordinate3D(12.495488442000067, 41.902576344000067, 59.504700000004959),
new Coordinate3D(12.495461061000071, 41.902576344000067, 62.552700000000186),
new Coordinate3D(12.495488442000067, 41.902576344000067, 59.504700000004959),
new Coordinate3D(12.495488442000067, 41.902576344000067, 62.552700000000186),
};
var coords_face3 = new List <Coordinate3D>()
{
new Coordinate3D(12.495488442000067, 41.902576344000067, 62.552700000000186),
new Coordinate3D(12.495488442000067, 41.902576344000067, 59.504700000004959),
new Coordinate3D(12.495488442000067, 41.902603910000039, 59.504700000004959),
new Coordinate3D(12.495488442000067, 41.902576344000067, 62.552700000000186),
new Coordinate3D(12.495488442000067, 41.902603910000039, 59.504700000004959),
new Coordinate3D(12.495488442000067, 41.902603910000039, 62.552700000000186),
};
var coords_face4 = new List <Coordinate3D>()
{
new Coordinate3D(12.495488442000067, 41.902576344000067, 59.504700000004959),
new Coordinate3D(12.495461061000071, 41.902576344000067, 59.504700000004959),
new Coordinate3D(12.495461061000071, 41.902603910000039, 59.504700000004959),
new Coordinate3D(12.495488442000067, 41.902576344000067, 59.504700000004959),
new Coordinate3D(12.495461061000071, 41.902603910000039, 59.504700000004959),
new Coordinate3D(12.495488442000067, 41.902603910000039, 59.504700000004959),
};
var coords_face5 = new List <Coordinate3D>()
{
new Coordinate3D(12.495488442000067, 41.902603910000039, 59.504700000004959),
new Coordinate3D(12.495461061000071, 41.902603910000039, 59.504700000004959),
new Coordinate3D(12.495461061000071, 41.902603910000039, 62.552700000000186),
new Coordinate3D(12.495488442000067, 41.902603910000039, 59.504700000004959),
new Coordinate3D(12.495461061000071, 41.902603910000039, 62.552700000000186),
new Coordinate3D(12.495488442000067, 41.902603910000039, 62.552700000000186),
};
var coords_face6 = new List <Coordinate3D>()
{
new Coordinate3D(12.495488442000067, 41.902603910000039, 62.552700000000186),
new Coordinate3D(12.495461061000071, 41.902603910000039, 62.552700000000186),
new Coordinate3D(12.495461061000071, 41.902576344000067, 62.552700000000186),
new Coordinate3D(12.495488442000067, 41.902603910000039, 62.552700000000186),
new Coordinate3D(12.495461061000071, 41.902576344000067, 62.552700000000186),
new Coordinate3D(12.495488442000067, 41.902576344000067, 62.552700000000186),
};
#endregion
// create a list of patch objects
var patches = new List <Patch>();
// create the multipatchBuilderEx object
var mpb = new ArcGIS.Core.Geometry.MultipatchBuilderEx();
// make each patch using the appropriate coordinates and add to the patch list
var patch = mpb.MakePatch(esriPatchType.Triangles);
patch.Coords = coords_face1;
patches.Add(patch);
patch = mpb.MakePatch(esriPatchType.Triangles);
patch.Coords = coords_face2;
patches.Add(patch);
patch = mpb.MakePatch(esriPatchType.Triangles);
patch.Coords = coords_face3;
patches.Add(patch);
patch = mpb.MakePatch(esriPatchType.Triangles);
patch.Coords = coords_face4;
patches.Add(patch);
patch = mpb.MakePatch(esriPatchType.Triangles);
patch.Coords = coords_face5;
patches.Add(patch);
patch = mpb.MakePatch(esriPatchType.Triangles);
patch.Coords = coords_face6;
patches.Add(patch);
// assign the patches to the multipatchBuilder
mpb.Patches = patches;
// call ToGeometry to get the multipatch
var multipatch = mpb.ToGeometry() as Multipatch;
return(multipatch);
}