Polar+Coordinates

=Polar Coordinates = Polar Coordinates are another way to express where a point in space is in relation to another. Polar Coordinates work much in the same way you might give someone directions to your house. You would give someone a direction to go and then how far they should travel in that direction. The same would be true if you have ever done a compass course. See the example below on giving directions from Riley to Notre Dame.

media type="googlemap" key="http://maps.google.com/maps?f=d&source=s_d&saddr=1902+Fellows+St,+South+Bend,+IN+46613+(Riley+High+School)&daddr=41.703242,-86.237183&hl=en&geocode=FfSWewIdGATc-iHVV4wirVI3zQ%3B&mra=me&mrcr=0&mrsp=1&sz=14&sll=41.697077,-86.228428&sspn=0.036914,0.051928&ie=UTF8&ll=41.683682,-86.229973&spn=0.089741,0.145912&z=12&output=embed" width="425" height="350" Driving directions to Cavanaugh Dr**3.8 mi** – about **12 mins****Suggested routes**
 * ~  ||~ Direction ||~   ||~ Distance ||~   ||
 * 1. || Head **north** on **Fellows St** toward **E Calvert St** || [[image:http://maps.gstatic.com/intl/en_us/mapfiles/cb/camera_dr1.png width="17" height="14"]] || 0.6 mi ||  ||
 * 2. || At the traffic circle, take the **1st** exit and stay on **Fellows St** || [[image:http://maps.gstatic.com/intl/en_us/mapfiles/cb/camera_dr1.png width="17" height="14"]] || 0.2 mi ||  ||
 * 3. || Turn **right** at **IN-23/ IN-933/ E Sample St** || [[image:http://maps.gstatic.com/intl/en_us/mapfiles/cb/camera_dr1.png width="17" height="14"]] || 0.1 mi ||  ||
 * 4. || Slight **left** at **S Eddy St/ IN-23**Continue to follow IN-23 || [[image:http://maps.gstatic.com/intl/en_us/mapfiles/cb/camera_dr1.png width="17" height="14"]] || 1.7 mi ||  ||
 * 5. || Continue on **N Eddy St** || [[image:http://maps.gstatic.com/intl/en_us/mapfiles/cb/camera_dr1.png width="17" height="14"]] || 0.7 mi ||  ||
 * 6. || Turn **left** at **Moose Krause Circle** || [[image:http://maps.gstatic.com/intl/en_us/mapfiles/cb/camera_dr1.png width="17" height="14"]] || 0.2 mi ||  ||
 * 7. || Turn **left** at **Old Juniper Rd** || [[image:http://maps.gstatic.com/intl/en_us/mapfiles/cb/camera_dr1.png width="17" height="14"]] || 0.2 mi ||  ||
 * 8. || Turn **left** at **Cavanaugh Dr** || [[image:http://maps.gstatic.com/intl/en_us/mapfiles/cb/camera_dr1.png width="17" height="14"]] || 0.1 mi ||  ||
 * [[image:http://maps.gstatic.com/intl/en_us/mapfiles/icon_greenB.png width="24" height="38"]] || Cavanaugh Dr ||

The robot uses this to get pointing in the direction that you want to travel and then go the distance you specify. This might be written as 4.5 inches at 45°. This would make an angled line.