I found an issue. The following script gives this. The red line created by `gmt events -Ar100c -JW0/15c’ follows the long path.
#!/usr/bin/env bash
title=BUG_Events
cat << 'EOF' > pre.sh
gmt begin
# Escalas del viaje
cat << 'FILE' > cities.txt
185 0 1
175 0 2
FILE
gmt events -Rd "cities.txt" -Ar100c > temp_line_points.txt -JW0/15c
gmt events -Rd "cities.txt" -Ar100c > temp_line_points2.txt -JW180/15c
gmt end
EOF
cat << 'EOF' > main.sh
gmt begin
gmt coast -Rd -JW180/15c -Bg0 -Yc -Xc -Dc -G200 -Sdodgerblue2 -N1/0.2,-
gmt plot temp_line_points.txt -W2p,red
gmt plot temp_line_points2.txt -W2p,black
gmt end
EOF
# Movie: Crear figuras y animacion. Opciones C: Canvas Size. G: Color fondo.
gmt movie "main.sh" -Sb"pre.sh" -N$title -T2 -C15cx15cx100 -Vi -Ml,png -Gblack