DS =\
-dsco NAME="Illustrate hazards of theoretical bullseye coordinates. \
We overlay it on Northbrook IL USA." \
-dsco DESCRIPTION="See $(subst $(HOME)/,https://www.,$(PWD))"
## Author: Dan Jacobson https://www.jidanni.org/
## Copyright: https://www.gnu.org/licenses/gpl.html
## Created: 2025-07-04T00:53:46+0000
## Last-Updated: 2025-07-04T20:45:56+0000
##     Update #: 83
# See also ../../../../../algorithms/single_axis/single_axis.html
C=-87.7797725,42.1524671 #Origin
R=(Name+0.0)/100000*3/1.64 #totally tinkering by eye
U=MakeArc($C,$R,220,250,0,5) AS WKT
P=nbc
$P.vik:
%.kml:%.csv
	ogr2ogr -f LIBKML $@ $< -sql 'SELECT Name FROM $(basename $<)' $(DS)
$P.csv:n.csv
	ogr2ogr $@ $< -q -lco STRING_QUOTING=IF_NEEDED \
	-lco GEOMETRY=AS_WKT \
	-dialect SQLite -sql 'SELECT Name, $U FROM $(basename $<)'
n.csv:; { echo Name; seq 1000 200 1800;} > $@
clean:; rm *.kml *.csv
.SECONDARY:
%.vik:%.kml; viking $< && sleep 99999