This is my first question on the forums, so be gentle 
I have a 5 meter interval contour lines feature class which I would like to interpolate to a DEM.
I am well aware of at least 2 tools ("tin to raster" and "topo to raster") which can help me with that. To produce the proper DEM I need to define first its purpose.
Long story short - I need to track the progression\advancement of small streams (AKA: gullies). They are typically 1 meter wide and 2 m long. My algorithm which will be using the DEM as a basis, must have as much as accurate DEM as possible. How accurate? - detailed enough to see an advancement of a 30 cm length for example.
To do that I must interpolate (from the mentioned above contours) a most pleasing DEM.
The questions is: what course of action would you suggest me to implement? How can I choose the correct parameters?
I know trial and error would be the most advisable answer, yet there are so many parameters (smoothing, cell size, method type, enforce drainage, tolerance) to consider it might take me weeks until I get the correct DEM.
Cheers,
David
أكثر...
I have a 5 meter interval contour lines feature class which I would like to interpolate to a DEM.
I am well aware of at least 2 tools ("tin to raster" and "topo to raster") which can help me with that. To produce the proper DEM I need to define first its purpose.
Long story short - I need to track the progression\advancement of small streams (AKA: gullies). They are typically 1 meter wide and 2 m long. My algorithm which will be using the DEM as a basis, must have as much as accurate DEM as possible. How accurate? - detailed enough to see an advancement of a 30 cm length for example.
To do that I must interpolate (from the mentioned above contours) a most pleasing DEM.
The questions is: what course of action would you suggest me to implement? How can I choose the correct parameters?
I know trial and error would be the most advisable answer, yet there are so many parameters (smoothing, cell size, method type, enforce drainage, tolerance) to consider it might take me weeks until I get the correct DEM.
Cheers,
David
أكثر...