public HelixRenderPackageFactory()
{
TessellationParameters = new TessellationParameters()
{
MaxTessellationDivisions = MaxTessellationDivisionsDefault
};
}
public DefaultRenderPackageFactory()
{
TessellationParameters = new TessellationParameters()
{
MaxTessellationDivisions = 32
};
}
public void Tessellate(IRenderPackage package, TessellationParameters parameters)
{
// Dynamo's renderer uses IRenderPackage objects
// to store data for rendering. The Tessellate method
// give you an IRenderPackage object which you can fill
// with render data.
// Set RequiresPerVertexColoration to let the renderer
// know that you needs to use a per-vertex color shader.
package.RequiresPerVertexColoration = true;
AddColoredQuadToPackage(package);
AddColoredLineToPackage(package);
}
public void Tessellate(IRenderPackage package, TessellationParameters parameters)
{
package.RequiresPerVertexColoration = true;
// As you add more data to the render package, you need
// to keep track of the index where this coloration will
// start from.
geometry.Tessellate(package, parameters);
if (parameters.ShowEdges)
{
var surf = geometry as Surface;
if (surf != null)
{
foreach (var curve in surf.PerimeterCurves())
{
curve.Tessellate(package, parameters);
curve.Dispose();
}
}
var solid = geometry as Solid;
if (solid != null)
{
foreach (var geom in solid.Edges.Select(edge => edge.CurveGeometry))
{
geom.Tessellate(package, parameters);
geom.Dispose();
}
}
}
if (package.LineVertexCount > 0)
{
package.ApplyLineVertexColors(CreateColorByteArrayOfSize(package.LineVertexCount, color.Red, color.Green, color.Blue, color.Alpha));
}
if (package.PointVertexCount > 0)
{
package.ApplyPointVertexColors(CreateColorByteArrayOfSize(package.PointVertexCount, color.Red, color.Green, color.Blue, color.Alpha));
}
if (package.MeshVertexCount > 0)
{
package.ApplyMeshVertexColors(CreateColorByteArrayOfSize(package.MeshVertexCount, color.Red, color.Green, color.Blue, color.Alpha));
}
}
public void Tessellate(IRenderPackage package, TessellationParameters parameters)
{
for (var i = 0; i < width - 1; i++)
{
for (var j = 0; j < length - 1; j++)
{
var a = vertexCoords[i , j];
var b = vertexCoords[i , j + 1];
var c = vertexCoords[i + 1, j];
var d = vertexCoords[i + 1, j + 1];
var v1 = Vector.ByTwoPoints(b, a).Cross(Vector.ByTwoPoints(c, b)).Normalized().Reverse();
var v2 = Vector.ByTwoPoints(c, d).Cross(Vector.ByTwoPoints(b, d)).Normalized().Reverse();
PushTriangleVertex(package, a, v1);
PushTriangleVertex(package, b, v1);
PushTriangleVertex(package, c, v1);
PushTriangleVertex(package, d, v2);
PushTriangleVertex(package, c, v2);
PushTriangleVertex(package, b, v2);
}
}
}
private static void CreateVertexColoredMesh(Point[] vertices, Color[] colors, IRenderPackage package, TessellationParameters parameters)
{
package.RequiresPerVertexColoration = true;
for (var i = 0; i <= vertices.Count()-3; i+=3)
{
var ptA = vertices[i];
var ptB = vertices[i+1];
var ptC = vertices[i+2];
if (ptA.IsAlmostEqualTo(ptB) ||
ptB.IsAlmostEqualTo(ptC) ||
ptA.IsAlmostEqualTo(ptC))
{
continue;
}
var alongLine = false;
using (var l = Line.ByStartPointEndPoint(ptA, ptC))
{
alongLine = ptB.DistanceTo(l) < 0.00001;
}
if (alongLine)
{
continue;
}
var cA = colors[i];
var cB = colors[i+1];
var cC = colors[i+2];
var s1 = ptB.AsVector().Subtract(ptA.AsVector()).Normalized();
var s2 = ptC.AsVector().Subtract(ptA.AsVector()).Normalized();
var n = s1.Cross(s2);
package.AddTriangleVertex(ptA.X, ptA.Y, ptA.Z);
package.AddTriangleVertexNormal(n.X, n.Y, n.Z);
package.AddTriangleVertexColor(cA.Red, cA.Green, cA.Blue, cA.Alpha);
package.AddTriangleVertexUV(0, 0);
package.AddTriangleVertex(ptB.X, ptB.Y, ptB.Z);
package.AddTriangleVertexNormal(n.X, n.Y, n.Z);
package.AddTriangleVertexColor(cB.Red, cB.Green, cB.Blue, cB.Alpha);
package.AddTriangleVertexUV(0, 0);
package.AddTriangleVertex(ptC.X, ptC.Y, ptC.Z);
package.AddTriangleVertexNormal(n.X, n.Y, n.Z);
package.AddTriangleVertexColor(cC.Red, cC.Green, cC.Blue, cC.Alpha);
package.AddTriangleVertexUV(0, 0);
}
}
private void TessellateEdges(IRenderPackage package, TessellationParameters parameters)
{
if (!parameters.ShowEdges) return;
var surf = geometry as Surface;
if (surf != null)
{
foreach (var curve in surf.PerimeterCurves())
{
curve.Tessellate(package, parameters);
curve.Dispose();
}
}
var solid = geometry as Solid;
if (solid != null)
{
foreach (var geom in solid.Edges.Select(edge => edge.CurveGeometry))
{
geom.Tessellate(package, parameters);
geom.Dispose();
}
}
}
private void CreateGeometryRenderData(Color color, IRenderPackage package, TessellationParameters parameters)
{
package.RequiresPerVertexColoration = true;
// As you add more data to the render package, you need
// to keep track of the index where this coloration will
// start from.
geometry.Tessellate(package, parameters);
TessellateEdges(package, parameters);
if (package.LineVertexCount > 0)
{
package.ApplyLineVertexColors(CreateColorByteArrayOfSize(package.LineVertexCount, color.Red, color.Green,
color.Blue, color.Alpha));
}
if (package.PointVertexCount > 0)
{
package.ApplyPointVertexColors(CreateColorByteArrayOfSize(package.PointVertexCount, color.Red, color.Green,
color.Blue, color.Alpha));
}
if (package.MeshVertexCount > 0)
{
package.ApplyMeshVertexColors(CreateColorByteArrayOfSize(package.MeshVertexCount, color.Red, color.Green,
color.Blue, color.Alpha));
}
}
private void CreateColorMapOnSurface(Color[][] colorMap , IRenderPackage package, TessellationParameters parameters)
{
const byte gray = 80;
geometry.Tessellate(package, parameters);
var colorBytes = new List<byte>();
foreach (var colorArr in colorMap)
{
foreach (var c in colorArr)
{
colorBytes.Add(c.Blue);
colorBytes.Add(c.Green);
colorBytes.Add(c.Red);
colorBytes.Add(c.Alpha);
}
}
package.SetColors(colorBytes.ToArray());
package.ColorsStride = colorMap.First().Length * 4;
TessellateEdges(package, parameters);
if (package.LineVertexCount > 0)
{
package.ApplyLineVertexColors(CreateColorByteArrayOfSize(package.LineVertexCount, gray, gray,
gray, 255));
}
}
public void Tessellate(IRenderPackage package, TessellationParameters parameters)
{
if(vertices != null)
{
CreateVertexColoredMesh(vertices, meshVertexColors, package, parameters);
return;
}
if (singleColor != null)
{
CreateGeometryRenderData(singleColor, package, parameters);
return;
}
if (colorMap != null)
{
if (!colorMap.Any())
{
return;
}
CreateColorMapOnSurface(colorMap, package, parameters);
return;
}
}
public void Tessellate(IRenderPackage package, TessellationParameters parameters)
{
// This example contains information to draw a point
package.AddPointVertex(point.X, point.Y, point.Z);
package.AddPointVertexColor(255, 0, 0, 255);
}
public void Tessellate(IRenderPackage package, TessellationParameters parameters)
{
AsVector().Tessellate(package, parameters);
}
public void Tessellate(List<object> objects, IRenderPackage package, TessellationParameters parameters)
{
foreach (var item in objects)
{
List<IGraphicItem> graphicItems = GetGraphicItems(item);
if (null == graphicItems || graphicItems.Count == 0)
continue;
foreach (var g in graphicItems)
{
g.Tessellate(package, parameters);
}
}
}
public void Tessellate(IRenderPackage package, TessellationParameters parameters)
{
if (singleColor != null)
{
CreateGeometryRenderData(singleColor, package, parameters);
}
else if (colorMap != null)
{
if (!colorMap.Any())
{
return;
}
CreateColorMapOnSurface(colorMap, package, parameters);
}
}
public void Tessellate(IRenderPackage package, TessellationParameters parameters)
{
package.AddPointVertex(point.X, point.Y, point.Z);
package.Description = label;
}
public new void Tessellate(IRenderPackage package, TessellationParameters parameters)
{
//Ensure that the object is still alive
if (!IsAlive) return;
//Location Point
DB.LocationPoint locPoint = InternalElement.Location as DB.LocationPoint;
GeometryPrimitiveConverter.ToPoint(InternalTransform.OfPoint(locPoint.Point)).Tessellate(package, parameters);
package.ApplyPointVertexColors(CreateColorByteArrayOfSize(package.PointVertexCount, 255, 0, 0, 0));
//Boundaries
foreach (DB.BoundarySegment segment in InternalBoundarySegments)
{
Curve crv = RevitToProtoCurve.ToProtoType(segment.GetCurve().CreateTransformed(InternalTransform));
crv.Tessellate(package, parameters);
if (package.LineVertexCount > 0)
{
package.ApplyLineVertexColors(CreateColorByteArrayOfSize(package.LineVertexCount, 255, 0, 0, 0));
}
}
}
public void Tessellate(List<object> objects, IRenderPackage package, TessellationParameters parameters)
{
throw new NotImplementedException();
}
public void Tessellate(IRenderPackage package, TessellationParameters parameters)
{
//could increase performance further by cacheing this tesselation
Geometry.Tessellate(package, parameters);
//we use reflection here because this API was added in Dynamo 1.1 and might not exist for a user in Dynamo 1.0
//if you do not care about ensuring comptability of your zero touch node with 1.0 you can just call SetTransform directly
//by casting the rendering package to ITransformable.
//look for the method SetTransform with the double[] argument list.
var method = package.GetType().
GetMethod("SetTransform", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance,
null,
new[] { typeof(double[]) }, null);
//if the method exists call it using our current transform.
if (method != null)
{
method.Invoke(package, new object[] { new double[]
{transform.XAxis.X,transform.XAxis.Y,transform.XAxis.Z,0,
transform.YAxis.X,transform.YAxis.Y,transform.YAxis.Z,0,
transform.ZAxis.X,transform.ZAxis.Y,transform.ZAxis.Z,0,
transform.Origin.X,transform.Origin.Y,transform.Origin.Z,1
}});
}
}
