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feat: add optional M98 part sub-programs to Cincinnati post processor

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Each unique part geometry (drawing + rotation) is written once as a
reusable sub-program called via M98, reducing output size for nests
with repeated parts. G92 coordinate repositioning handles per-instance
plate placement with restore after each call. Cut-offs remain inline.

Controlled by UsePartSubprograms (default false) and PartSubprogramStart
config properties.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
AJ Isaacs
2026-03-23 00:43:44 -04:00
parent 379000bbd8
commit 833abfe72e
5 changed files with 497 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
OpenNest.Posts.Cincinnati/CincinnatiPostProcessor.cs
View File

@@ -68,17 +68,49 @@ namespace OpenNest.Posts.Cincinnati
.Where(p => p.Parts.Count > 0)
.ToList();
// 3. Create writers
// 3. Build part sub-program registry (if enabled)
Dictionary<(int, long), int> partSubprograms = null;
List<(int subNum, string name, Program program)> subprogramEntries = null;
if (Config.UsePartSubprograms)
{
partSubprograms = new Dictionary<(int, long), int>();
subprogramEntries = new List<(int, string, Program)>();
var nextSubNum = Config.PartSubprogramStart;
foreach (var plate in plates)
{
foreach (var part in plate.Parts)
{
if (part.BaseDrawing.IsCutOff) continue;
var key = CincinnatiPartSubprogramWriter.SubprogramKey(part);
if (!partSubprograms.ContainsKey(key))
{
var subNum = nextSubNum++;
partSubprograms[key] = subNum;
// Create normalized program at origin
var pgm = part.Program.Clone() as Program;
var bbox = pgm.BoundingBox();
pgm.Offset(-bbox.Location.X, -bbox.Location.Y);
subprogramEntries.Add((subNum, part.BaseDrawing.Name, pgm));
}
}
}
}
// 4. Create writers
var preamble = new CincinnatiPreambleWriter(Config);
var sheetWriter = new CincinnatiSheetWriter(Config, vars);
// 4. Build material description from first plate
// 5. Build material description from first plate
var material = plates.FirstOrDefault()?.Material;
var materialDesc = material != null
? $"{material.Name}{(string.IsNullOrEmpty(material.Grade) ? "" : $", {material.Grade}")}"
: "";
// 5. Write to stream
// 6. Write to stream
using var writer = new StreamWriter(outputStream, Encoding.UTF8, 1024, leaveOpen: true);
// Main program
@@ -92,7 +124,25 @@ namespace OpenNest.Posts.Cincinnati
{
var sheetIndex = i + 1;
var subNumber = Config.SheetSubprogramStart + i;
sheetWriter.Write(writer, plates[i], nest.Name ?? "NEST", sheetIndex, subNumber);
sheetWriter.Write(writer, plates[i], nest.Name ?? "NEST", sheetIndex, subNumber,
partSubprograms);
}
// Part sub-programs (if enabled)
if (subprogramEntries != null)
{
var partSubWriter = new CincinnatiPartSubprogramWriter(Config);
var firstPlate = plates.FirstOrDefault();
var sheetDiagonal = firstPlate != null
? System.Math.Sqrt(firstPlate.Size.Width * firstPlate.Size.Width
+ firstPlate.Size.Length * firstPlate.Size.Length)
: 100.0;
foreach (var (subNum, name, pgm) in subprogramEntries)
{
partSubWriter.Write(writer, pgm, name, subNum,
Config.DefaultLibraryFile ?? "", sheetDiagonal);
}
}
writer.Flush();