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Exclude bend lines where radius is too large.

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AJ
2019-09-10 14:41:58 -04:00
parent 80d4f78858
commit 5da216dec2
4 changed files with 150 additions and 124 deletions
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9
EtchBendLines/App.config
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@@ -1,6 +1,9 @@
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
</startup>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
</startup>
<appSettings>
<add key="MaxBendRadius" value="2.0"/>
</appSettings>
</configuration>

1
EtchBendLines/EtchBendLines.csproj
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@@ -33,6 +33,7 @@
</PropertyGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="System.Configuration" />
<Reference Include="System.Core" />
<Reference Include="System.Xml.Linq" />
<Reference Include="System.Data.DataSetExtensions" />

23
EtchBendLines/Extensions.cs
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@@ -139,5 +139,28 @@ namespace EtchBendLines
{
return Math.Abs(b - a) <= tolerance;
}
public static Vector2 ClosestPointOnLineTo(this Line line, Vector2 pt)
{
var startPoint = line.StartPoint.ToVector2();
var endPoint = line.EndPoint.ToVector2();
var diff1 = pt - startPoint;
var diff2 = endPoint - startPoint;
var dotProduct = diff1.X * diff2.X + diff1.Y * diff2.Y;
var lengthSquared = diff2.X * diff2.X + diff2.Y * diff2.Y;
var param = dotProduct / lengthSquared;
if (param < 0)
return startPoint;
else if (param > 1)
return endPoint;
else
{
return new Vector2(
startPoint.X + param * diff2.X,
startPoint.Y + param * diff2.Y);
}
}
}
}

241
EtchBendLines/Program.cs
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@@ -3,10 +3,10 @@ using netDxf.Entities;
using netDxf.Tables;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Text.RegularExpressions;
namespace EtchBendLines
{
@@ -19,7 +19,9 @@ namespace EtchBendLines
Color = AciColor.Yellow
};
static void Main(string[] args)
static Regex bendNoteRegex = new Regex(@"(?<direction>UP|DOWN|DN)\s*(?<angle>\d*(\.\d*)?)°\s*R\s*(?<radius>\d*(\.\d*)?)");
static void Main(string[] args)
{
var path = AppDomain.CurrentDomain.BaseDirectory;
var files = Directory.GetFiles(path, "*.dxf", SearchOption.AllDirectories);
@@ -85,8 +87,6 @@ namespace EtchBendLines
note.Layer = BendLayer;
}
AssignBendDirections(bendLines, bendNotes);
var upBends = bendLines.Where(b => b.Direction == BendDirection.Up);
var upBendCount = upBends.Count();
var downBendCount = bendLines.Count - upBendCount;
@@ -133,121 +133,118 @@ namespace EtchBendLines
return false;
}
static void AssignBendDirections(IEnumerable<Bend> bendlines, IEnumerable<MText> bendNotes)
{
foreach (var bendline in bendlines)
{
var bendNote = FindBendNote(bendline.Line, bendNotes);
if (bendNote == null)
continue;
bendNote.Layer = BendLayer;
var note = bendNote.Value.ToUpper();
if (note.Contains("UP"))
bendline.Direction = BendDirection.Up;
else if (note.Contains("DOWN") || note.Contains("DN"))
bendline.Direction = BendDirection.Down;
}
}
//static MText FindBendNote(Line bendLine, IEnumerable<MText> bendNotes)
// {
// var startPoint = new Vector2(bendLine.StartPoint.X, bendLine.StartPoint.Y);
// var endPoint = new Vector2(bendLine.EndPoint.X, bendLine.EndPoint.Y);
// var angle = startPoint.AngleTo(endPoint);
// if (angle >= 180.0)
// angle -= 180.0;
// const double ANGLE_TOLERANCE = 0.001;
// var bendNotesWithSameAngle = bendNotes.Where(n => Math.Abs(n.Rotation - angle) < ANGLE_TOLERANCE).ToList();
// var midPoint = bendLine.MidPoint();
// MText closestNote = bendNotes.First();
// Vector2 closestPoint = closestNote.Position.ToVector2();
// foreach (var note in bendNotes)
// {
// var pt = note.Position.ToVector2();
// var dist = midPoint.DistanceTo(pt);
// if (dist < distance)
// {
// closestNote = note;
// distance = dist;
// closestPoint = pt;
// }
// }
// var distToBendNote = closestNote.Position.ToVector2().DistanceTo(midPoint);
// if (distToBendNote > 18)
// return null;
// return closestNote;
// }
static MText FindBendNote(Line bendLIne, IEnumerable<MText> bendNotes)
{
var list = bendNotes.ToList();
var shortestDist = double.MaxValue;
var shortestDistIndex = -1;
for (int i = 0; i < list.Count; i++)
{
var note = list[i];
var notePos = note.Position.ToVector2();
var perpendicularPoint = bendLIne.PointPerpendicularTo(notePos);
var dist = notePos.DistanceTo(perpendicularPoint);
if (dist < shortestDist)
{
shortestDistIndex = i;
shortestDist = dist;
}
}
if (shortestDistIndex == -1)
return null;
var bendNote = list[shortestDistIndex];
var maxAcceptableDist = bendNote.Height * 2.0;
if (shortestDist > maxAcceptableDist)
return null;
return bendNote;
}
static Vector2? FindClosestPoint(Vector2 originPoint, List<Vector2> pts)
static void AssignBendDirections(IEnumerable<Bend> bendlines, IEnumerable<MText> bendNotes)
{
if (pts == null || pts.Any() == false)
foreach (var bendline in bendlines)
{
var bendNote = FindBendNote(bendline.Line, bendNotes);
if (bendNote == null)
continue;
var note = bendNote.Value.ToUpper();
if (note.Contains("UP"))
bendline.Direction = BendDirection.Up;
else if (note.Contains("DOWN") || note.Contains("DN"))
bendline.Direction = BendDirection.Down;
var match = bendNoteRegex.Match(note);
if (match.Success)
{
bendline.Radius = double.Parse(match.Groups["radius"].Value);
bendline.Angle = double.Parse(match.Groups["angle"].Value);
}
}
}
static double MaxBendRadius
{
get { return double.Parse(ConfigurationManager.AppSettings["MaxBendRadius"]); }
}
//static MText FindBendNote(Line bendLine, IEnumerable<MText> bendNotes)
// {
// var startPoint = new Vector2(bendLine.StartPoint.X, bendLine.StartPoint.Y);
// var endPoint = new Vector2(bendLine.EndPoint.X, bendLine.EndPoint.Y);
// var angle = startPoint.AngleTo(endPoint);
// if (angle >= 180.0)
// angle -= 180.0;
// const double ANGLE_TOLERANCE = 0.001;
// var bendNotesWithSameAngle = bendNotes.Where(n => Math.Abs(n.Rotation - angle) < ANGLE_TOLERANCE).ToList();
// var midPoint = bendLine.MidPoint();
// MText closestNote = bendNotes.First();
// Vector2 closestPoint = closestNote.Position.ToVector2();
// foreach (var note in bendNotes)
// {
// var pt = note.Position.ToVector2();
// var dist = midPoint.DistanceTo(pt);
// if (dist < distance)
// {
// closestNote = note;
// distance = dist;
// closestPoint = pt;
// }
// }
// var distToBendNote = closestNote.Position.ToVector2().DistanceTo(midPoint);
// if (distToBendNote > 18)
// return null;
// return closestNote;
// }
static MText FindBendNote(Line bendLine, IEnumerable<MText> bendNotes)
{
var bendNotesList = bendNotes.ToList();
for (int i = bendNotesList.Count - 1; i >= 0; i--)
{
var note = bendNotesList[i];
var notePos = note.Position.ToVector2();
var perpendicularPoint = bendLine.PointPerpendicularTo(notePos);
var dist = notePos.DistanceTo(perpendicularPoint);
var maxAcceptableDist = note.Height * 2.0;
if (dist > maxAcceptableDist)
bendNotesList.RemoveAt(i);
}
if (bendNotesList.Count == 0)
return null;
var closest = pts[0];
var distance = originPoint.DistanceTo(closest);
var closestNote = bendNotesList.First();
var p1 = closestNote.Position.ToVector2();
var p2 = bendLine.ClosestPointOnLineTo(p1);
var dist2 = p1.DistanceTo(p2);
for (int i = 1; i < pts.Count; i++)
for (int i = 1; i < bendNotesList.Count; i++)
{
var pt = pts[i];
var dist = originPoint.DistanceTo(pt);
var note = bendNotesList[i];
var p3 = note.Position.ToVector2();
var p4 = bendLine.ClosestPointOnLineTo(p3);
var dist = p3.DistanceTo(p4);
if (dist < distance)
if (dist < dist2)
{
distance = dist;
closest = pts[i];
dist2 = dist;
closestNote = note;
}
}
return closest;
return closestNote;
}
static DxfDocument LoadDoc(string file)
@@ -257,24 +254,26 @@ namespace EtchBendLines
static List<Bend> GetBendLines(DxfDocument dxf)
{
var bends = new List<Bend>();
var bends = new List<Bend>();
var bendNotes = GetBendNotes(dxf);
foreach (var line in dxf.Lines)
{
if (line.Linetype.Name != "CENTERX2" && line.Layer.Name != "BEND")
continue;
if (line.Linetype.Name != "CENTERX2" && line.Layer.Name != "BEND")
continue;
var bend = new Bend
{
Line = line,
Direction = BendDirection.Unknown
};
var bend = new Bend
{
Line = line,
Direction = BendDirection.Unknown
};
bends.Add(bend);
bends.Add(bend);
}
return bends;
AssignBendDirections(bends, bendNotes);
return bends.Where(b => b.Radius <= MaxBendRadius).ToList();
}
static List<MText> GetBendNotes(DxfDocument dxf)