Core And Rendering

ProCadSharp.Core

ProCadSharp.Core contains:

file formats and read/write options
document service contracts
property descriptors and validation
generated CAD metadata registries
document identity entries
object and property diffing
DXF text diffing
batch query and search models
export contracts and results

ProCadSharp.IO

ProCadSharp.IO maps the core document service onto ACadSharp. It is the infrastructure boundary for DWG/DXF file access.

ProCadSharp.Rendering

ProCadSharp.Rendering contains:

RenderScene and render primitives
entity dispatch and handlers
render settings and style resolution
layer, viewport, plot style, and frame visibility logic
SHX/HarfBuzz text shaping helpers
dynamic block, XRef, ACIS SAT/SAB, hidden-line, material, and lighting helpers
hit testing, spatial index, diagnostics, stats, and cache services

These projects are the main reusable surface for non-UI CAD processing.