Function Syntax: LLP / SHOWPANEL / PLACELEADER / ADDLAYER / REMOVELAYER / LISTLAYERS / ADDBLOCK / REMOVEBLOCK / LISTBLOCKS / LLUPDATEFIELDS / SETUPDIMSTYLES / LOADSETUPDIMSTYLES Version: 1.0 Date: 29.06.2026 16:23:18 Version: 1.1 Date: 29.06.2026 4:23:24PM Version: 1.1 Date: 02.07.2026 3:10:31PM N/A Function Syntax: LayerLeaderPlugin Version: 1.0.027 Description 🚀 LayerLeaderPlugin is an AutoCAD and Civil 3D .NET WinForms plugin for controlled DB-style MLeader label placement, layer-based label mapping, dynamic block visibility labeling, and CAD annotation standard management. 📌 The tool opens a modeless panel with dedicated Leader, Layer, Blocks, Setup Styles, and Log workflows so production users can place, edit, update, and audit labels without closing their active drawing workflow. 🧩 It reads and writes layer_database.json and block_database.json beside the loaded DLL, making label rules portable and easy to maintain. 🔐 Version 1.0.027 fixes Visual Studio build problems in long OneDrive and support-file paths by using a short intermediate build folder. Main Commands 🧰 LLP and SHOWPANEL open the modeless Layer Leader panel. 📍 PLACELEADER starts the entity pick, arrowhead point, and text point workflow for placing DB-linked MLeader labels. 📚 ADDLAYER, REMOVELAYER, and LISTLAYERS manage layer-to-label database entries. 🧱 ADDBLOCK, REMOVEBLOCK, and LISTBLOCKS manage dynamic block visibility-state label rules. 🔄 LLUPDATEFIELDS refreshes linked MLeader label fields in the active drawing. 🛠️ SETUPDIMSTYLES and LOADSETUPDIMSTYLES run or reload the integrated AutoLISP style setup helper. Functionalities ✅ DB MLeader style automation - ensures the DB multileader style exists and sets it current when the plugin loads. ✅ Layer label database - maps Civil 3D layer names to clean display labels, color values, linetypes, and descriptions. ✅ Dynamic block label database - resolves labels from block names and visibility-state patterns with wildcard support. ✅ Place leader workflow - picks the source entity, arrowhead point, and text point, then creates a production-ready MLeader label. ✅ Place on block workflow - reads dynamic block visibility states and places the correct annotation label. ✅ Linked label refresh - updates DB-linked MLeader fields after database or drawing changes. ✅ Setup Styles workspace - supports Text, Dimensions, and MLeader style workflows, including dimension override cleanup. ✅ Background mask tools - integrates masking controls for readable labels and clean plotted drawings. ✅ Arrowhead symbol support - exposes standard AutoCAD MLeader arrowhead styles for controlled annotation output. ✅ UCS-aware placement - transforms picked positions correctly from the current UCS to WCS while preserving horizontal label convention. ✅ Log and diagnostics - records plugin actions with timestamps, supports saving, copying, clearing, and auto-persisting logs. ✅ Long-path build fix - v1.0.027 uses a short o\ intermediate folder to avoid path-length build failures. Technical Notes 🧠 Built for .NET Framework 4.8, x64, Windows Forms, AutoCAD ObjectARX references, Civil 3D references, and Newtonsoft.Json 13.0.3. 📦 Runtime files must stay beside the DLL: LayerLeaderPlugin.dll, Newtonsoft.Json.dll, layer_database.json, block_database.json, BuildDate.txt, and the bundled Lisp folder. ⚠️ AutoCAD and Civil 3D reference DLLs must be loaded from the local Autodesk installation and should not be copied into the plugin output folder. Practical Result 🎯 The final result is a faster, more consistent AutoCAD and Civil 3D annotation workflow for DB-style multileaders, layer labels, dynamic block labels, field refresh, style setup, background masks, and CAD production standards. Tags 🏷️ AutoCAD, 🏷️ Civil 3D, 🏷️ AutoCAD .NET, 🏷️ CSharp, 🏷️ WinForms, 🏷️ MLeader, 🏷️ Layer Management, 🏷️ Dynamic Blocks, 🏷️ CAD Standards, 🏷️ ObjectARX, 🏷️ AutoLISP Integration