#!/bin/bash
#
video="/dev/video1"
#
if [ $# -ne 1 ]; then
   echo "command line: scan background_threshold, using 0"
   threshold=0
else
   threshold=$1
fi
#
echo "to set up camera:"
echo "   HDMI1_1366x768"
echo "      script to mirror display"
echo "   guvcview -d video1"
echo "      set camera to fix focus, adjust brightness and contrast"
echo "   zoom %"
echo "      script for zoom, 100 for no change"
echo "   bright scale"
echo "      script for display brightness scale, 1 for no change"
#
read -p "CR to scan background"
coord back.png $threshold $video
#
read -p "CR to scan object"
coord front.png $threshold $video
#
png_sub front.png back.png height.png
#
eog height.png
#
echo "png_stl to mesh"
echo "png_ply to texture map"