How to draw a track field on iPad or iPhone
September 29, 2014 3 Comments
A typical high school equal-quadrant track has 100 meter curves and 100 meter straightaways. You could use your Buffer & Stakeout app, your Farming GPS GIS app or your Forester GPS GIS app to draw the track field and lane as follows:
Set the distance unit to Feet.
Use the Add Point Manually tool in combination with the Node tool to place one of the two radius points on the map. Then select that point and call up the Create Buffer tool.
With Equal Intervals selected, enter 328.08 as the buffer interval in ft. (This is equal to 100 meters.) Tap on the brainy Solve tool to create a circular buffer around the point.
Go back to Map View and use the Add Point Manually tool in combination with the Node tool to place the second radius point, which should like on the circumference of the point buffer. Then return to Map View.
Select the Add Line Manually tool then activate the Snap to Node icon. Then tap on the two radius points to form the central line.
Select the Create Buffer tool.
Un-mark Equal Intervals and select Area Strips.
Enter “108” for Start, and “132.75” for End.
Tap the Solve icon to create the track .
To make multiple track lanes, enter the relevant additional start and end buffer widths.
Select and delete the circular buffer and the central line when you don’t need them anymore.