feat: replace XML nest file format with JSON (v2)
Replace three separate XML metadata files (info, drawing-info, plate-info) and per-plate G-code placement files with a single nest.json inside the ZIP archive. Programs remain as G-code text under a programs/ folder. This eliminates ~400 lines of hand-written XML read/write code and fragile ID-based dictionary linking. Now uses System.Text.Json with DTO records for clean serialization. Also adds Priority and Constraints fields to drawing serialization (previously omitted). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
+109
-426
@@ -1,45 +1,28 @@
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using System;
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.IO;
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using System.IO.Compression;
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using System.Linq;
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using System.Text.RegularExpressions;
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using System.Xml;
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using System.Text.Json;
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using OpenNest.CNC;
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using OpenNest.Geometry;
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using OpenNest.Math;
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using static OpenNest.IO.NestFormat;
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namespace OpenNest.IO
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{
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public sealed class NestReader
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{
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private ZipArchive zipArchive;
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private Dictionary<int, Plate> plateDict;
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private Dictionary<int, Drawing> drawingDict;
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private Dictionary<int, Program> programDict;
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private Dictionary<int, Program> plateProgramDict;
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private Stream stream;
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private Nest nest;
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private NestReader()
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{
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plateDict = new Dictionary<int, Plate>();
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drawingDict = new Dictionary<int, Drawing>();
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programDict = new Dictionary<int, Program>();
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plateProgramDict = new Dictionary<int, Program>();
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nest = new Nest();
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}
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private readonly Stream stream;
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private readonly ZipArchive zipArchive;
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public NestReader(string file)
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: this()
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{
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stream = new FileStream(file, FileMode.Open, FileAccess.Read);
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zipArchive = new ZipArchive(stream, ZipArchiveMode.Read);
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}
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public NestReader(Stream stream)
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: this()
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{
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this.stream = stream;
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zipArchive = new ZipArchive(stream, ZipArchiveMode.Read);
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@@ -47,52 +30,12 @@ namespace OpenNest.IO
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public Nest Read()
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{
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const string plateExtensionPattern = "plate-\\d\\d\\d";
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const string programExtensionPattern = "program-\\d\\d\\d";
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var nestJson = ReadEntry("nest.json");
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var dto = JsonSerializer.Deserialize<NestDto>(nestJson, JsonOptions);
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foreach (var entry in zipArchive.Entries)
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{
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var memstream = new MemoryStream();
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using (var entryStream = entry.Open())
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{
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entryStream.CopyTo(memstream);
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}
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memstream.Position = 0;
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switch (entry.FullName)
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{
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case "info":
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ReadNestInfo(memstream);
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continue;
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case "drawing-info":
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ReadDrawingInfo(memstream);
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continue;
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case "plate-info":
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ReadPlateInfo(memstream);
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continue;
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}
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if (Regex.IsMatch(entry.FullName, programExtensionPattern))
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{
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ReadProgram(memstream, entry.FullName);
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continue;
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}
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if (Regex.IsMatch(entry.FullName, plateExtensionPattern))
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{
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ReadPlate(memstream, entry.FullName);
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continue;
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}
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}
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LinkProgramsToDrawings();
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LinkPartsToPlates();
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AddPlatesToNest();
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AddDrawingsToNest();
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var programs = ReadPrograms(dto.Drawings.Count);
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var drawingMap = BuildDrawings(dto, programs);
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var nest = BuildNest(dto, drawingMap);
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zipArchive.Dispose();
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stream.Close();
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@@ -100,374 +43,114 @@ namespace OpenNest.IO
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return nest;
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}
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private void ReadNestInfo(Stream stream)
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private string ReadEntry(string name)
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{
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var reader = XmlReader.Create(stream);
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var spacing = new Spacing();
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var entry = zipArchive.GetEntry(name)
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?? throw new InvalidDataException($"Nest file is missing required entry '{name}'.");
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using var entryStream = entry.Open();
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using var reader = new StreamReader(entryStream);
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return reader.ReadToEnd();
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}
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while (reader.Read())
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private Dictionary<int, Program> ReadPrograms(int count)
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{
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var programs = new Dictionary<int, Program>();
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for (var i = 1; i <= count; i++)
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{
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if (!reader.IsStartElement())
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continue;
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var entry = zipArchive.GetEntry($"programs/program-{i}");
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if (entry == null) continue;
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switch (reader.Name)
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using var entryStream = entry.Open();
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var memStream = new MemoryStream();
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entryStream.CopyTo(memStream);
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memStream.Position = 0;
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var reader = new ProgramReader(memStream);
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programs[i] = reader.Read();
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}
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return programs;
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}
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private Dictionary<int, Drawing> BuildDrawings(NestDto dto, Dictionary<int, Program> programs)
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{
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var map = new Dictionary<int, Drawing>();
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foreach (var d in dto.Drawings)
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{
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var drawing = new Drawing(d.Name);
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drawing.Customer = d.Customer;
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drawing.Color = Color.FromArgb(d.Color.A, d.Color.R, d.Color.G, d.Color.B);
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drawing.Quantity.Required = d.Quantity.Required;
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drawing.Priority = d.Priority;
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drawing.Constraints.StepAngle = d.Constraints.StepAngle;
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drawing.Constraints.StartAngle = d.Constraints.StartAngle;
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drawing.Constraints.EndAngle = d.Constraints.EndAngle;
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drawing.Constraints.Allow180Equivalent = d.Constraints.Allow180Equivalent;
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drawing.Material = new Material(d.Material.Name, d.Material.Grade, d.Material.Density);
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drawing.Source.Path = d.Source.Path;
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drawing.Source.Offset = new Vector(d.Source.Offset.X, d.Source.Offset.Y);
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if (programs.TryGetValue(d.Id, out var pgm))
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drawing.Program = pgm;
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map[d.Id] = drawing;
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}
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return map;
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}
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private Nest BuildNest(NestDto dto, Dictionary<int, Drawing> drawingMap)
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{
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var nest = new Nest();
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nest.Name = dto.Name;
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Units units;
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if (Enum.TryParse(dto.Units, true, out units))
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nest.Units = units;
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nest.Customer = dto.Customer;
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nest.DateCreated = DateTime.Parse(dto.DateCreated);
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nest.DateLastModified = DateTime.Parse(dto.DateLastModified);
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nest.Notes = dto.Notes;
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// Plate defaults
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var pd = dto.PlateDefaults;
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nest.PlateDefaults.Size = new OpenNest.Geometry.Size(pd.Size.Width, pd.Size.Height);
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nest.PlateDefaults.Thickness = pd.Thickness;
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nest.PlateDefaults.Quadrant = pd.Quadrant;
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nest.PlateDefaults.PartSpacing = pd.PartSpacing;
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nest.PlateDefaults.Material = new Material(pd.Material.Name, pd.Material.Grade, pd.Material.Density);
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nest.PlateDefaults.EdgeSpacing = new Spacing(pd.EdgeSpacing.Left, pd.EdgeSpacing.Bottom, pd.EdgeSpacing.Right, pd.EdgeSpacing.Top);
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// Drawings
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foreach (var d in drawingMap.OrderBy(k => k.Key))
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nest.Drawings.Add(d.Value);
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// Plates
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foreach (var p in dto.Plates.OrderBy(p => p.Id))
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{
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var plate = new Plate();
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plate.Size = new OpenNest.Geometry.Size(p.Size.Width, p.Size.Height);
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plate.Thickness = p.Thickness;
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plate.Quadrant = p.Quadrant;
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plate.Quantity = p.Quantity;
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plate.PartSpacing = p.PartSpacing;
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plate.Material = new Material(p.Material.Name, p.Material.Grade, p.Material.Density);
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plate.EdgeSpacing = new Spacing(p.EdgeSpacing.Left, p.EdgeSpacing.Bottom, p.EdgeSpacing.Right, p.EdgeSpacing.Top);
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foreach (var partDto in p.Parts)
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{
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case "Nest":
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nest.Name = reader["name"];
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break;
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if (!drawingMap.TryGetValue(partDto.DrawingId, out var dwg))
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continue;
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case "Units":
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Units units;
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TryParseEnum<Units>(reader.ReadString(), out units);
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nest.Units = units;
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break;
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case "Customer":
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nest.Customer = reader.ReadString();
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break;
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case "DateCreated":
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nest.DateCreated = DateTime.Parse(reader.ReadString());
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break;
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case "DateLastModified":
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nest.DateLastModified = DateTime.Parse(reader.ReadString());
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break;
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case "Notes":
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nest.Notes = Uri.UnescapeDataString(reader.ReadString());
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break;
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case "Size":
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nest.PlateDefaults.Size = OpenNest.Geometry.Size.Parse(reader.ReadString());
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break;
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case "Thickness":
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nest.PlateDefaults.Thickness = double.Parse(reader.ReadString());
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break;
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case "Quadrant":
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nest.PlateDefaults.Quadrant = int.Parse(reader.ReadString());
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break;
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case "PartSpacing":
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nest.PlateDefaults.PartSpacing = double.Parse(reader.ReadString());
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break;
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case "Name":
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nest.PlateDefaults.Material.Name = reader.ReadString();
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break;
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case "Grade":
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nest.PlateDefaults.Material.Grade = reader.ReadString();
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break;
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case "Density":
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nest.PlateDefaults.Material.Density = double.Parse(reader.ReadString());
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break;
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case "Left":
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spacing.Left = double.Parse(reader.ReadString());
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break;
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case "Right":
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spacing.Right = double.Parse(reader.ReadString());
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break;
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case "Top":
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spacing.Top = double.Parse(reader.ReadString());
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break;
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case "Bottom":
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spacing.Bottom = double.Parse(reader.ReadString());
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break;
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var part = new Part(dwg);
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part.Rotate(partDto.Rotation);
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part.Offset(new Vector(partDto.X, partDto.Y));
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plate.Parts.Add(part);
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}
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nest.Plates.Add(plate);
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}
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reader.Close();
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nest.PlateDefaults.EdgeSpacing = spacing;
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}
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private void ReadDrawingInfo(Stream stream)
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{
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var reader = XmlReader.Create(stream);
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Drawing drawing = null;
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while (reader.Read())
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{
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if (!reader.IsStartElement())
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continue;
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switch (reader.Name)
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{
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case "Drawing":
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var id = int.Parse(reader["id"]);
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var name = reader["name"];
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drawingDict.Add(id, (drawing = new Drawing(name)));
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break;
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case "Customer":
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drawing.Customer = reader.ReadString();
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break;
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case "Color":
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{
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var parts = reader.ReadString().Split(',');
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if (parts.Length == 3)
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{
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byte r = byte.Parse(parts[0]);
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byte g = byte.Parse(parts[1]);
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byte b = byte.Parse(parts[2]);
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drawing.Color = Color.FromArgb(r, g, b);
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}
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else if (parts.Length == 4)
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{
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byte a = byte.Parse(parts[0]);
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byte r = byte.Parse(parts[1]);
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byte g = byte.Parse(parts[2]);
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byte b = byte.Parse(parts[3]);
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drawing.Color = Color.FromArgb(a, r, g, b);
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}
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}
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break;
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case "Required":
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drawing.Quantity.Required = int.Parse(reader.ReadString());
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break;
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case "Name":
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drawing.Material.Name = reader.ReadString();
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break;
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case "Grade":
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drawing.Material.Grade = reader.ReadString();
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break;
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case "Density":
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drawing.Material.Density = double.Parse(reader.ReadString());
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break;
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case "Path":
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drawing.Source.Path = reader.ReadString();
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break;
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case "Offset":
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{
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var parts = reader.ReadString().Split(',');
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if (parts.Length != 2)
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continue;
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drawing.Source.Offset = new Vector(double.Parse(parts[0]), double.Parse(parts[1]));
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}
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break;
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}
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}
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reader.Close();
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}
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private void ReadPlateInfo(Stream stream)
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{
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var reader = XmlReader.Create(stream);
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var spacing = new Spacing();
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Plate plate = null;
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while (reader.Read())
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{
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if (!reader.IsStartElement())
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continue;
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switch (reader.Name)
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{
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case "Plate":
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var id = int.Parse(reader["id"]);
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if (plate != null)
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plate.EdgeSpacing = spacing;
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plateDict.Add(id, (plate = new Plate()));
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break;
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case "Size":
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plate.Size = OpenNest.Geometry.Size.Parse(reader.ReadString());
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break;
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case "Qty":
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plate.Quantity = int.Parse(reader.ReadString());
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break;
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case "Thickness":
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plate.Thickness = double.Parse(reader.ReadString());
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break;
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case "Quadrant":
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plate.Quadrant = int.Parse(reader.ReadString());
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break;
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case "PartSpacing":
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plate.PartSpacing = double.Parse(reader.ReadString());
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break;
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case "Name":
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plate.Material.Name = reader.ReadString();
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break;
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case "Grade":
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plate.Material.Grade = reader.ReadString();
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break;
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case "Density":
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plate.Material.Density = double.Parse(reader.ReadString());
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break;
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case "Left":
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spacing.Left = double.Parse(reader.ReadString());
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break;
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case "Right":
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spacing.Right = double.Parse(reader.ReadString());
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break;
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case "Top":
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spacing.Top = double.Parse(reader.ReadString());
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break;
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case "Bottom":
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spacing.Bottom = double.Parse(reader.ReadString());
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break;
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}
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}
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if (plate != null)
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plate.EdgeSpacing = spacing;
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}
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private void ReadProgram(Stream stream, string name)
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{
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var id = GetProgramId(name);
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var reader = new ProgramReader(stream);
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var pgm = reader.Read();
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programDict.Add(id, pgm);
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}
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private void ReadPlate(Stream stream, string name)
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{
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var id = GetPlateId(name);
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var reader = new ProgramReader(stream);
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var pgm = reader.Read();
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plateProgramDict.Add(id, pgm);
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}
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private void LinkProgramsToDrawings()
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{
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foreach (var drawingItem in drawingDict)
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{
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Program pgm;
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if (programDict.TryGetValue(drawingItem.Key, out pgm))
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drawingItem.Value.Program = pgm;
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}
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}
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private void LinkPartsToPlates()
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{
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foreach (var plateProgram in plateProgramDict)
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{
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var parts = CreateParts(plateProgram.Value);
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Plate plate;
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if (!plateDict.TryGetValue(plateProgram.Key, out plate))
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plate = new Plate();
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plate.Parts.AddRange(parts);
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plateDict[plateProgram.Key] = plate;
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}
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}
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private void AddPlatesToNest()
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{
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var plates = plateDict.OrderBy(i => i.Key).Select(i => i.Value).ToList();
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nest.Plates.AddRange(plates);
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}
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private void AddDrawingsToNest()
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{
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var drawings = drawingDict.OrderBy(i => i.Key).Select(i => i.Value).ToList();
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drawings.ForEach(d => nest.Drawings.Add(d));
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}
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private List<Part> CreateParts(Program pgm)
|
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{
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var parts = new List<Part>();
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var pos = Vector.Zero;
|
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|
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for (int i = 0; i < pgm.Codes.Count; i++)
|
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{
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var code = pgm.Codes[i];
|
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|
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switch (code.Type)
|
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{
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case CodeType.RapidMove:
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pos = ((RapidMove)code).EndPoint;
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break;
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case CodeType.SubProgramCall:
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var subpgm = (SubProgramCall)code;
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var dwg = drawingDict[subpgm.Id];
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var part = new Part(dwg);
|
||||
part.Rotate(Angle.ToRadians(subpgm.Rotation));
|
||||
part.Offset(pos);
|
||||
parts.Add(part);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return parts;
|
||||
}
|
||||
|
||||
private int GetPlateId(string name)
|
||||
{
|
||||
return int.Parse(name.Replace("plate-", ""));
|
||||
}
|
||||
|
||||
private int GetProgramId(string name)
|
||||
{
|
||||
return int.Parse(name.Replace("program-", ""));
|
||||
}
|
||||
|
||||
public static T ParseEnum<T>(string value)
|
||||
{
|
||||
return (T)Enum.Parse(typeof(T), value, true);
|
||||
}
|
||||
|
||||
public static bool TryParseEnum<T>(string value, out T e)
|
||||
{
|
||||
try
|
||||
{
|
||||
e = ParseEnum<T>(value);
|
||||
return true;
|
||||
}
|
||||
catch
|
||||
{
|
||||
e = ParseEnum<T>(typeof(T).GetEnumValues().GetValue(0).ToString());
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
private enum NestInfoSection
|
||||
{
|
||||
None,
|
||||
DefaultPlate,
|
||||
Material,
|
||||
EdgeSpacing,
|
||||
Source
|
||||
return nest;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user