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Working more on intpoint version of gear

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This commit is contained in:
Lars Brubaker 2020-06-15 18:46:48 -07:00
parent 2acf49ff87
commit 6021697aec
2 changed files with 44 additions and 25 deletions
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67
MatterControlLib/DesignTools/Primitives/Gear2D.cs
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@ -29,6 +29,7 @@ either expressed or implied, of the FreeBSD Project.
using System;
using System.Collections.Generic;
using System.Security.Cryptography;
using ClipperLib;
using MatterHackers.Agg;
using MatterHackers.Agg.Transform;
@ -113,6 +114,18 @@ namespace MatterHackers.MatterControl.DesignTools
return output;
}
private Polygon Circle(double x, double y, double radius, double scale = 1, int steps = 100)
{
var output = new Polygon(100);
for (int i = 0; i < steps; i++)
{
var angle = 2 * Math.PI * i / steps;
output.Add(new IntPoint(Math.Cos(angle) * radius * scale, Math.Sin(angle) * radius * scale));
}
return output;
}
public double Backlash
{
get => _backlash;
@ -208,7 +221,7 @@ namespace MatterHackers.MatterControl.DesignTools
}
public bool Debug { get; set; } = false;
private List<IVertexSource> debugData = new List<IVertexSource>();
private List<Polygons> debugData = new List<Polygons>();
public override IEnumerable<VertexData> Vertices()
{
@ -217,7 +230,7 @@ namespace MatterHackers.MatterControl.DesignTools
switch (GearType)
{
case GearTypes.External:
//shape = CreateExternalGearShape();
shape = CreateExternalGearShape();
break;
case GearTypes.Internal:
@ -231,31 +244,40 @@ namespace MatterHackers.MatterControl.DesignTools
if (Debug && debugData.Count > 0)
{
IVertexSource output = debugData[0];
var output = debugData[0];
var offset = 0.0;
for (int i = 1; i < debugData.Count; i++)
{
offset += debugData[i-1].GetBounds().Height/2 + 2;
offset += debugData[i].GetBounds().Height/2 + 2;
offset += debugData[i - 1].GetBounds().Height / 2 + 2;
offset += debugData[i].GetBounds().Height / 2 + 2;
output = new CombinePaths(output, new VertexSourceApplyTransform(debugData[i], Affine.NewTranslation(0, offset)));
offset += debugData[i].GetBounds().Height/2 + 2;
offset += debugData[i].GetBounds().Height / 2 + 2;
}
// return output.Vertices();
}
foreach (var poly in shape)
if (shape == null)
{
var command = ShapePath.FlagsAndCommand.MoveTo;
foreach (var point in poly)
yield return new VertexData(ShapePath.FlagsAndCommand.MoveTo, 0, 0);
yield return new VertexData(ShapePath.FlagsAndCommand.LineTo, 20, 0);
yield return new VertexData(ShapePath.FlagsAndCommand.LineTo, 0, 20);
}
else
{
foreach (var poly in shape)
{
yield return new VertexData(command, point.X / 1000.0, point.Y / 1000.0);
command = ShapePath.FlagsAndCommand.MoveTo;
var command = ShapePath.FlagsAndCommand.MoveTo;
foreach (var point in poly)
{
yield return new VertexData(command, point.X / 1000.0, point.Y / 1000.0);
command = ShapePath.FlagsAndCommand.LineTo;
}
}
}
}
private IVertexSource CreateInternalToothCutter()
private Polygons CreateInternalToothCutter()
{
// To cut the internal gear teeth, the actual pinion comes close but we need to enlarge it so properly caters for clearance and backlash
var pinion = this.connectedGear;
@ -275,7 +297,7 @@ namespace MatterHackers.MatterControl.DesignTools
enlargedPinion.CalculateDependants();
var tooth = enlargedPinion.CreateSingleTooth();
return tooth.tooth.RotateZDegrees(90 + 180 / enlargedPinion.ToothCount); // we need a tooth pointing to the left
return tooth.tooth.Rotate(90 + 180 / enlargedPinion.ToothCount); // we need a tooth pointing to the left
}
private IVertexSource CreateInternalToothProfile()
@ -544,8 +566,8 @@ namespace MatterHackers.MatterControl.DesignTools
var upperLeftCorner = ScalledPoint(-leftDepth, toothWidth / 2 - dx + (this.addendum + this.Clearance) * sinPressureAngle, 1000);
var upperRightCorner = ScalledPoint(this.addendum, toothWidth / 2 - dx - this.addendum * sinPressureAngle, 1000);
var lowerRightCorner = ScalledPoint(upperRightCorner.X, -upperRightCorner.Y, 1000);
var lowerLeftCorner = ScalledPoint(upperLeftCorner.X, -upperLeftCorner.Y, 1000);
var lowerRightCorner = ScalledPoint(upperRightCorner.X, -upperRightCorner.Y, 1);
var lowerLeftCorner = ScalledPoint(upperLeftCorner.X, -upperLeftCorner.Y, 1);
var tooth = new Polygon();
tooth.Add(upperLeftCorner);
@ -556,7 +578,7 @@ namespace MatterHackers.MatterControl.DesignTools
return tooth;
}
private IVertexSource CreateExternalGearShape()
private Polygons CreateExternalGearShape()
{
var tooth = this.CreateSingleTooth();
// return tooth.wheel;
@ -579,7 +601,7 @@ namespace MatterHackers.MatterControl.DesignTools
// return outlinePaths;
var gearShape = tooth.wheel.Subtract(outlinePaths);
var gearShape = tooth.wheel.CombinePaths(outlinePaths, ClipType.ctDifference);
// return gearShape;
@ -596,20 +618,17 @@ namespace MatterHackers.MatterControl.DesignTools
return gearShape;
}
private (IVertexSource tooth, IVertexSource wheel) CreateSingleTooth()
private (Polygons tooth, Polygon wheel) CreateSingleTooth()
{
// create outer circle sector covering one tooth
var toothSectorPath = new Ellipse(Vector2.Zero, this.OuterRadius)
{
ResolutionScale = 10
};
var toothSectorPath = Circle(0, 0, this.OuterRadius, 1000);
var toothCutOut = CreateToothCutout();
return (toothCutOut, toothSectorPath);
}
private IVertexSource CreateToothCutout()
private Polygons CreateToothCutout()
{
var angleStepSize = this.AngleToothToTooth / this.stepsPerToothAngle;
@ -617,7 +636,7 @@ namespace MatterHackers.MatterControl.DesignTools
var toothCutterShape = this.CreateToothCutter();
// return toothCutterShape;
var bounds = toothCutterShape.GetBounds();
var lowerLeftCorner = new Vector2(bounds.Left, bounds.Bottom);