topic Finding saddle points in a grid? in Python Questions https://community.esri.com/t5/python-questions/finding-saddle-points-in-a-grid/m-p/139751#M10902 <HTML><HEAD></HEAD><BODY><SPAN>Hello all! </SPAN><BR /><BR /><SPAN>I would like to be able to identify saddle points in my grid. </SPAN><BR /><BR /><SPAN>Does anyone know of a method to do this? Search has led me in the way of Numpy. Would that be the right direction to go or can this be achieved with Spatial Analyst? </SPAN><BR /><BR /><SPAN>Thanks!</SPAN></BODY></HTML> Wed, 19 Dec 2012 08:10:02 GMT StefanHaglund1 2012-12-19T08:10:02Z Finding saddle points in a grid? https://community.esri.com/t5/python-questions/finding-saddle-points-in-a-grid/m-p/139751#M10902 <HTML><HEAD></HEAD><BODY><SPAN>Hello all! </SPAN><BR /><BR /><SPAN>I would like to be able to identify saddle points in my grid. </SPAN><BR /><BR /><SPAN>Does anyone know of a method to do this? Search has led me in the way of Numpy. Would that be the right direction to go or can this be achieved with Spatial Analyst? </SPAN><BR /><BR /><SPAN>Thanks!</SPAN></BODY></HTML> Wed, 19 Dec 2012 08:10:02 GMT https://community.esri.com/t5/python-questions/finding-saddle-points-in-a-grid/m-p/139751#M10902 StefanHaglund1 2012-12-19T08:10:02Z Re: Finding saddle points in a grid? https://community.esri.com/t5/python-questions/finding-saddle-points-in-a-grid/m-p/139752#M10903 <HTML><HEAD></HEAD><BODY><SPAN>What is your specific definition or criteria for a saddle? If you can figure out how you want to define or search for your saddle, you may be able to do this with either.&nbsp; </SPAN><BR /><BR /><SPAN>Here are a few questions that may help you define some saddle logic to identify the saddles:</SPAN><BR /><BR /><SPAN>Your saddle is the low vertical point in one horizontal direction and the high vertical point in another horizontal direction.&nbsp; </SPAN><BR /><SPAN>- Are you interested in all saddles even if they have very small vertical elevation changes (inches to 1 ft)? </SPAN><BR /><SPAN>- Or what vertical slope needs to be present for you to define that as a saddle? </SPAN><BR /><BR /><SPAN>How large does your saddle need to be?&nbsp; Do the slopes meeting at the saddle peak and valley need to cover a distance of one raster cell, 5 cells, or some larger value?</SPAN></BODY></HTML> Wed, 26 Dec 2012 13:44:51 GMT https://community.esri.com/t5/python-questions/finding-saddle-points-in-a-grid/m-p/139752#M10903 MelanieMaguire 2012-12-26T13:44:51Z