sodengineer
Civil/Environmental
- May 29, 2008
- 37
Here is a blast from the past.
Waaay back when I was a field engineer, we had an algorithim that would allow us to compute the cross-section area for cut or fill sections, based on x,y coordinate pairs. As I recall, we took the last two coordinate pairs and added them to the end of a string of coordinates, then did some kind of cross multiplication to get the area.
We would then average the areas, multiply by the distance between sections, etc.
Does anyone know what I'm talking about? Can you describe the process? I have a few cross sections I need to compute, and I don't want to go to all the trouble of learning a new software package for something simple like this.
As always. Thanks, this forum rocks.
Waaay back when I was a field engineer, we had an algorithim that would allow us to compute the cross-section area for cut or fill sections, based on x,y coordinate pairs. As I recall, we took the last two coordinate pairs and added them to the end of a string of coordinates, then did some kind of cross multiplication to get the area.
We would then average the areas, multiply by the distance between sections, etc.
Does anyone know what I'm talking about? Can you describe the process? I have a few cross sections I need to compute, and I don't want to go to all the trouble of learning a new software package for something simple like this.
As always. Thanks, this forum rocks.