ARSYSplotQGIS QGIS 4 compatibility

ARSYSplotQGIS is a QGIS 3 plugin developed as the QGIS counterpart of ARSYSplotLite, part of the ArcheSystem archaeological software suite developed at IPHES-CERCA URV. It provides an interactive archaeostratigraphic viewer for exploring and visualising the spatial distribution of archaeological remains recorded during excavation, in plan, vertical sections and 3D. WORKSPACE AND VIEWS - Opens in its own workspace, independent of the QGIS map canvas and layer legend. - Three linked 2D views: plan (X/Y), longitudinal section (X/Z) and transversal section (Y/Z). - Optional Stretch Z on the section views (vertical exaggeration; tick labels stay in real metres). Off by default. - Optional cross-view hover: highlight the same record across the three main panes. Off by default. - Optional 3D scatter view (X/Y/Z), with orbit, pan and zoom (plugin Qt viewer — not QGIS 3D). DATA AND FILTERING - Import CSV (comma, semicolon, tab or pipe) or spreadsheets (.xlsx / .ods / .xls via GDAL/OGR), load sample data or use a selected QGIS point layer. - Map P1 (X, Y, Z) as the object position and optionally P2 → P3 to represent orientation vectors. - Colour points by group field (material, level, category, taxonomy, etc.). - Optional style file to set colour and marker shape per group. - Filter by group and X, Y and Z coordinate ranges. - Find: exact-word attribute search with hit table and green selection ring. - Adaptive frame to fit the full or filtered dataset. - Options → To QGIS layer: publish the full loaded table as a project memory layer (filters ignored). PROFILE - Manual A–B profile on Plan (Wide in cm): vertical prism; LONG/TRANS sections; CSV and To QGIS export. - Density and Profile are mutually exclusive on screen; General → Redraw parks both and shows the loaded data. DENSITY AND EXPORT - Open the Density tab to build the kernel-density surface (no On switch). - Heatmaps and isolines, with five kernel functions; isolines include the outer Min edge of the first class. - Adjustable radius, cell size, colour palette, Min/Max, isoline count, labels and opacity. - Independent zoom and PNG export for each 2D view, with configurable titles, backgrounds and resolution (96–600 dpi). REQUIREMENTS - QGIS 3.22 or later (tested with QGIS 3.40). - Uses the Python environment and Processing algorithms bundled with QGIS. - No additional pip packages, external binaries or internet connection required. SAMPLE AND DOCUMENTATION - Includes sample.csv. Select Load sample to explore the plugin. - Documentation: Help → Plugins → ARSYSplotQGIS or the project README (homepage). LICENCE GNU GPL-2.0-or-later.