private Multipatch CreateCubeMultipatch()
{
double side = 5.0;
// create the multipatch builder
MultipatchBuilderEx cubeMultipatchBuilderEx = new MultipatchBuilderEx();
// make the top face patch
Patch topFacePatch = cubeMultipatchBuilderEx.MakePatch(PatchType.FirstRing);
topFacePatch.Coords = new List <Coordinate3D>
{
new Coordinate3D(0, 0, side),
new Coordinate3D(0, side, side),
new Coordinate3D(side, side, side),
new Coordinate3D(side, 0, side),
};
// make the bottom face patch
Patch bottomFacePatch = cubeMultipatchBuilderEx.MakePatch(PatchType.FirstRing);
bottomFacePatch.Coords = new List <Coordinate3D>
{
new Coordinate3D(0, 0, 0),
new Coordinate3D(0, side, 0),
new Coordinate3D(side, side, 0),
new Coordinate3D(side, 0, 0),
};
// make the sides face patch
Patch sidesFacePatch = cubeMultipatchBuilderEx.MakePatch(PatchType.TriangleStrip);
sidesFacePatch.Coords = new List <Coordinate3D>
{
new Coordinate3D(0, 0, 0),
new Coordinate3D(0, 0, side),
new Coordinate3D(side, 0, 0),
new Coordinate3D(side, 0, side),
new Coordinate3D(side, side, 0),
new Coordinate3D(side, side, side),
new Coordinate3D(0, side, 0),
new Coordinate3D(0, side, side),
new Coordinate3D(0, 0, 0),
new Coordinate3D(0, 0, side),
};
// add to the Patches collection on the builder
cubeMultipatchBuilderEx.Patches.Add(topFacePatch);
cubeMultipatchBuilderEx.Patches.Add(bottomFacePatch);
cubeMultipatchBuilderEx.Patches.Add(sidesFacePatch);
// create the geometry
Multipatch cubeMultipatch = cubeMultipatchBuilderEx.ToGeometry() as Multipatch;
return(cubeMultipatch);
}
internal static async Task <Multipatch> MakeFishnetRingMultiPatchAsync(Polygon inputPoly)
{
Envelope envPoly = inputPoly.Extent;
var interval = GetFishnetIntervalDistance(envPoly);
var mColor = System.Windows.Media.Colors.LightCyan;
var materialRed = new BasicMaterial
{
Color = mColor,
EdgeColor = mColor,
EdgeWidth = 0
};
// create the multipatchBuilderEx object
var mpb = new MultipatchBuilderEx();
// create a list of patch objects
var patches = new List <Patch>();
var first = true;
for (var dX = envPoly.XMin; dX < envPoly.XMax + interval; dX += interval)
{
for (var dY = envPoly.YMin; dY < envPoly.YMax + interval; dY += interval)
{
var cutEnv = EnvelopeBuilder.CreateEnvelope(dX, dY, dX + interval, dY + interval,
envPoly.SpatialReference);
if (GeometryEngine.Instance.Intersects(cutEnv, inputPoly))
{
var addPolygonPart = GeometryEngine.Instance.Clip(inputPoly, cutEnv) as Polygon;
if (addPolygonPart.Area < 0)
{
System.Diagnostics.Debug.WriteLine($@"area: {addPolygonPart.Area}");
}
var result = await Module1.CurrentMapView.Map.GetZsFromSurfaceAsync(addPolygonPart);
if (result.Status == SurfaceZsResultStatus.Ok)
{
addPolygonPart = GeometryEngine.Instance.Move(result.Geometry, 0, 0, Module1.Elevation) as Polygon;
}
var patch = mpb.MakePatch(first ? esriPatchType.FirstRing : esriPatchType.Ring);
first = false;
patch.InsertPoints(0, addPolygonPart.Points);
patch.Material = materialRed;
patches.Add(patch);
}
}
} // assign the patches to the multipatchBuilder
mpb.Patches = patches;
// call ToGeometry to get the multipatch
return(mpb.ToGeometry() as Multipatch);
}