Combine Dibblee maps with R

R-based workflow for scaling, cropping and combining GeoTIFF's from the Dibblee map collection.

Workflow

1. Generate cropped/scaled versions of maps in data/: ./crop_all.sh
2. Create combined map: Rscript combine.R

Directory Structure

• data/ - Source GeoTIFF files (.tif) and coordinate files (.tif.txt)
• output/ - Intermediate processed files (scaled and cropped .tif files)
• images/ - Final visualization outputs (.png files)

Scripts

• cop_all.sh - Batch processes all GeoTIFF files in the data directory
• crop.R - Individual file processing (scaling, polygon cropping)
• combine.R - Combines multiple rasters into a single visualization
• plot.R - Creates individual plots for single GeoTIFF files

Requirements

• R with packages: terra, sf, ggplot2, maps, terrainr
• Input data: GeoTIFF files with corresponding .txt coordinate files