Geometry, nesting and import code now call PortableMath instead of
System.Math for Sin, Cos, Tan, Atan, Atan2, Asin and Acos (Core, Engine,
IO, Data; 269 calls in 64 files). A test fails if those projects call the
runtime's trig again.
With the runtime's trig, Windows and Linux disagreed in the last bit at
non-quarter angles and the same job could nest differently: the
learned-angle nests (a cross fixture) placed 23 parts in Strip on Windows
and 28 on Linux. Now every Engine.Tests pin gives the same layout on both
(3600 passing on Linux and on DesktopPC), Linux layouts are unchanged, and
the learned-angle rows are re-pinned to the shared layouts, which pass the
overlap and work-area checks, and run on every platform again.
Fixes Project Memory 518f3b58.
AutoCAD keeps an open DWG/DXF locked for writing, and ACadSharp's path
constructors (and File.OpenRead / XmlReader.Create) deny write sharing,
so the CAD Converter could not import a part while it was open in
AutoCAD. Open source files read-only with read/write sharing instead.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Show Original drew nothing until Simplify ran, and then showed entities that
had already been through import cleanup. The importers now capture the
entities before any optimization and the overlay draws those from load, while
Simplify keeps starting from the cleaned entities.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Customers and design tools hand over SVGs, and getting them in meant a
trip through another CAD tool. CadImporter now reads them like any other
drawing, and plates, programs and converter entities can be written out.
An SVG's numbers are not drawing units, so import converts to the nest's
units and never guesses: only an absolute width or height counts as a
stated size, since px means 1/96 in to browsers but 1/72 in to
Illustrator. Without one the desktop asks, showing the size each choice
gives, and headless callers must pass the scale or the import fails.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
aj
