Author Topic: pmdc - calculate distance & travel time between two locations  (Read 965 times)

hakerdefo

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    • Looking at Linux through the Windows of Life
pmdc is a simple bash script that calculates distance & travel time between two locations. Distance & travel time are calculated using the road network (Driving mode in map parlance). Those of you living in the good ol' US of A can even use short names for their states like ca, ny, dc, etc. etc.
Any dependencies? Well only one. And it's simple to install too,
Code: [Select]
sudo apt-get install jq

Ready for the script? Here you go,
Code: [Select]
#!/bin/bash

clear

echo ""
echo -e "pmdc calculates distance & travel time between two locations."
echo ""
echo -e "Distance & travel time are calculated using the road network."
echo ""
echo -e "Press Enter key to continue...."
echo ""
read EnterKey
clear
echo ""
echo -e "Location 1 - From:"
echo ""
echo ""
echo -e "Enter the name of city-town-village"
echo ""
read village
echo ""
echo -e "Enter the name of state-county-province"
echo ""
read province
echo ""
echo -e "Enter the name of country"
echo ""
read country
clear
echo ""
echo -e "Location 2 - To:"
echo ""
echo ""
echo -e "Enter the name of city-town-village"
echo ""
read city
echo ""
echo -e "Enter the name of state-county-province"
echo ""
read state
echo ""
echo -e "Enter the name of country"
echo ""
read name
clear

city_1=$(echo "$village" | sed 's/ \+/+/g')
state_1=$(echo "$province" | sed 's/ \+/+/g')
country_1=$(echo "$country" | sed 's/ \+/+/g')
city_2=$(echo "$city" | sed 's/ \+/+/g')
state_2=$(echo "$state" | sed 's/ \+/+/g')
country_2=$(echo "$name" | sed 's/ \+/+/g')

curl -s --connect-timeout 30 -o /tmp/pmdc.json "https://maps.googleapis.com/maps/api/distancematrix/json?origins=$city_1+$state_1+$country_1&destinations=$city_2+$state_2+$country_2&language=en"

if [ ! -f /tmp/pmdc.json ]; then
echo ""
echo -e "Unable to connect to Internet!"
echo -e "Check your Internet connection!"
echo ""

exit 1

else

addvalid=$(cat /tmp/pmdc.json | grep "NOT_FOUND")

if [[ -n "$addvalid" ]]; then
echo ""
echo -e "No results found!"
echo -e "May be you misspelled a name?!?"
echo ""

exit 1

else

resvalid=$(cat /tmp/pmdc.json | grep "ZERO_RESULTS")

if [[ -n "$resvalid" ]]; then
echo ""
echo -e "Sorry! No distance data is available!"
echo ""

exit 1

else

orgadd=$(cat /tmp/pmdc.json | jq -r '.origin_addresses' | sed -e 's/\"//g' -e 's/\[//g' -e 's/\]//g' -e 's/^[ \t]*//')
desadd=$(cat /tmp/pmdc.json | jq -r '.destination_addresses' | sed -e 's/\"//g' -e 's/\[//g' -e 's/\]//g' -e 's/^[ \t]*//')
distbet=$(cat /tmp/pmdc.json | jq -r '.rows[].elements[].distance.text')
durabet=$(cat /tmp/pmdc.json | jq -r '.rows[].elements[].duration.text')

echo ""
echo -e "From: $orgadd"
echo ""
echo -e "To: $desadd"
echo ""
echo -e "Distance -> $distbet"
echo ""
echo -e "Travel time -> $durabet"
echo ""

rm /tmp/pmdc.json

fi
fi
fi

exit 0


Save this script with the name 'pmdc' somewhere in your $PATH and 'chmod 755' it.
Open terminal and run 'pmdc' whenever you are planning a driving trip and it will give you the exact distance and approximate travel time.
By the way pmdc means Poor Man's Distance Calculator.
Cheers!!!
You Can't Always Git What You Want

PackRat

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Re: pmdc - calculate distance & travel time between two locations
« Reply #1 on: July 12, 2015, 06:38:44 PM »
Cool.

Works - and I've done the drive a couple times so ~41 hours total time is pretty close.

I am tired of talk that comes to nothing.
-- Chief Joseph

...the sun, the darkness, the winds are all listening to what we have to say.
-- Geronimo