# QCALVIEW — User manual

## About QCALVIEW
QCALVIEW is developed by **Fabrice Kerzerho — ArcTan°**, a French practice specialising in visual simulation and geomatics, including landscape assessment support, renewable-energy projects, photographic simulations and GIS workflows.

- QCALVIEW: https://qcalview.com
- ArcTan°: https://arctan.fr
- Contact: contact@arctan.fr

## Purpose
QCALVIEW brings photographic calibration and visual simulation workflows directly into QGIS. It can associate photographs with viewpoints, project GIS layers into calibrated views, create schematic representations, support visibility/occultation work and export prepared views.

## Quick start
1. Load or select a point layer representing viewpoints.
2. Add or select a viewpoint and associate a photograph when required.
3. Set the projection and camera parameters (yaw, pitch, roll, HFOV/VFOV and camera height).
4. Add compatible vector layers to the projected-layer list.
5. Configure layer appearance or schematic representations.
6. Check the preview/viewer and save the viewpoint parameters and visual state.
7. Use the Export tab for the required output.

## Important
This manual is intentionally concise for the experimental release. Detailed workflows, screenshots and methodological guidance will be expanded as QCALVIEW stabilises.

## Experimental tools in ALPHA-40.20

The public Alpha exposes the Projection grid, Azimuth ruler and Interactive monoplotting for testing. These tools remain under active development and their behaviour or interface may change. Other internal experimental modules are intentionally not exposed in public builds yet.
