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automatic support generation is working a bit

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This commit is contained in:
Lars Brubaker 2019-01-02 17:50:34 -08:00
parent 7b776a82f8
commit 6debaa0617
2 changed files with 86 additions and 28 deletions
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112
MatterControlLib/PartPreviewWindow/GenerateSupportPannel.cs
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@ -27,6 +27,7 @@ of the authors and should not be interpreted as representing official policies,
either expressed or implied, of the FreeBSD Project.
*/
using MatterHackers.Agg;
using MatterHackers.Agg.UI;
using MatterHackers.DataConverters3D;
using MatterHackers.Localizations;
@ -34,8 +35,10 @@ using MatterHackers.MatterControl.CustomWidgets;
using MatterHackers.MatterControl.DesignTools;
using MatterHackers.MatterControl.SlicerConfiguration;
using MatterHackers.PolygonMesh;
using MatterHackers.RayTracer;
using MatterHackers.VectorMath;
using System;
using System.Collections.Generic;
using System.Linq;
namespace MatterHackers.MatterControl.PartPreviewWindow
@ -50,6 +53,11 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
public class GenerateSupportPannel : FlowLayoutWidget
{
/// <summary>
/// The amount ot reduce the pilars so they are separated in the 3D view
/// </summary>
private double reduceAmount => PillarSize / 8;
private InteractiveScene scene;
private ThemeConfig theme;
@ -61,9 +69,7 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
VAnchor = VAnchor.Fit;
HAnchor = HAnchor.Absolute;
Width = 400;
// put in support pillar size
Width = 300;
// support pillar resolution
var pillarSizeField = new DoubleField(theme);
@ -118,16 +124,12 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
public double PillarSize { get; private set; } = 4;
void RemoveExisting()
private void AddSupportColumn(double gridX, double gridY, double bottomZ, double topZ)
{
var existingSupports = scene.Children.Where(i => i.GetType() == typeof(GeneratedSupportObject3D));
scene.Children.Modify((list) =>
scene.Children.Add(new GeneratedSupportObject3D()
{
foreach (var item in existingSupports)
{
list.Remove(item);
}
Mesh = PlatonicSolids.CreateCube(PillarSize - reduceAmount, PillarSize - reduceAmount, topZ - bottomZ),
Matrix = Matrix4X4.CreateTranslation(gridX, gridY, bottomZ + (topZ - bottomZ) / 2)
});
}
@ -137,7 +139,7 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
var visibleMeshes = scene.Children.SelectMany(i => i.VisibleMeshes());
var selectedItem = scene.SelectedItem;
if(selectedItem != null)
if (selectedItem != null)
{
visibleMeshes = selectedItem.VisibleMeshes();
}
@ -145,8 +147,10 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
var supportCandidates = visibleMeshes.Where(i => i.OutputType != PrintOutputTypes.Support);
// find all the faces that are candidates for support
var verts = new Vector3List();
var faces = new FaceList();
var upVerts = new Vector3List();
var upFaces = new FaceList();
var downVerts = new Vector3List();
var downFaces = new FaceList();
foreach (var item in supportCandidates)
{
var matrix = item.WorldMatrix(scene);
@ -159,28 +163,63 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
{
foreach (var triangle in face.AsTriangles())
{
faces.Add(new int[] { verts.Count, verts.Count + 1, verts.Count + 2 });
verts.Add(Vector3.Transform(triangle.p0, matrix));
verts.Add(Vector3.Transform(triangle.p0, matrix));
verts.Add(Vector3.Transform(triangle.p0, matrix));
downFaces.Add(new int[] { downVerts.Count, downVerts.Count + 1, downVerts.Count + 2 });
downVerts.Add(Vector3.Transform(triangle.p0, matrix));
downVerts.Add(Vector3.Transform(triangle.p1, matrix));
downVerts.Add(Vector3.Transform(triangle.p2, matrix));
}
}
if(angle > 0)
{
foreach (var triangle in face.AsTriangles())
{
upFaces.Add(new int[] { upVerts.Count, upVerts.Count + 1, upVerts.Count + 2 });
upVerts.Add(Vector3.Transform(triangle.p0, matrix));
upVerts.Add(Vector3.Transform(triangle.p1, matrix));
upVerts.Add(Vector3.Transform(triangle.p2, matrix));
}
}
}
}
if (faces.Count > 0)
if (downFaces.Count > 0)
{
var downTraceData = downFaces.CreateTraceData(downVerts, 0);
var upTraceData = upFaces.CreateTraceData(upVerts, 0);
// get the bounds of all verts
var bounds = verts.Bounds();
var bounds = downVerts.Bounds();
// create the gird of possible support
RectangleDouble gridBounds = new RectangleDouble(Math.Floor(bounds.minXYZ.X / PillarSize),
Math.Floor(bounds.minXYZ.Y / PillarSize),
Math.Ceiling(bounds.maxXYZ.X / PillarSize),
Math.Ceiling(bounds.maxXYZ.Y / PillarSize));
var supportGrid = new List<List<double>>((int)(gridBounds.Width * gridBounds.Height));
// at the center of every grid item add in a list of all the top faces to look down from
for(int y=0; y<gridBounds.Height; y++)
{
for(int x=0; x<gridBounds.Width; x++)
{
var ray = new Ray(new Vector3((gridBounds.Left + x) * PillarSize, (gridBounds.Bottom + y) * PillarSize, 0), Vector3.UnitZ, intersectionType: IntersectionType.Both);
var traceData = downTraceData.GetClosestIntersection(ray);
if(traceData != null)
{
AddSupportColumn(traceData.HitPosition.X, traceData.HitPosition.Y, 0, traceData.HitPosition.Z);
}
}
}
// foreach face set the support heights in the overlapped support grid
// foreach grid column that has data
// trace down from the top to the first bottom hit (or bed)
// add a support column
var first = faces.First();
var position = verts[first[0]];
AddSupportColumn(position.X, position.Y, position.Z, 0);
var first = downFaces.First();
var position = downVerts[first[0]];
//AddSupportColumn(position.X, position.Y, position.Z, 0);
}
// this is the theory for regions rather than pillars
@ -191,13 +230,32 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
// make a new mesh object with the top, bottom and walls, add it to the scene and mark it as support
}
private void AddSupportColumn(double gridX, double gridY, double topZ, double bottomZ)
private void RemoveExisting()
{
scene.Children.Add(new GeneratedSupportObject3D()
var existingSupports = scene.Children.Where(i => i.GetType() == typeof(GeneratedSupportObject3D));
scene.Children.Modify((list) =>
{
Mesh = PlatonicSolids.CreateCube(PillarSize / 2, PillarSize / 2, topZ - bottomZ),
Matrix = Matrix4X4.CreateTranslation(gridX, gridY, bottomZ + (topZ - bottomZ) / 2)
foreach (var item in existingSupports)
{
list.Remove(item);
}
});
}
}
public static class FaceListExtensions
{
public static IPrimitive CreateTraceData(this FaceList faceList, Vector3List vertexList, int maxRecursion = int.MaxValue)
{
List<IPrimitive> allPolys = new List<IPrimitive>();
foreach (var face in faceList)
{
allPolys.Add(new TriangleShape(vertexList[face[0]], vertexList[face[1]], vertexList[face[2]], null));
}
return BoundingVolumeHierarchy.CreateNewHierachy(allPolys, maxRecursion);
}
}
}

2
Submodules/agg-sharp

@ -1 +1 @@
Subproject commit dfdd6ede10f6f2c680b4b7b0f0c25c22b330e97f
Subproject commit 04321d099ffb1c27fbd52c8f8114826446771d3d