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Hi Evan, Also, thanks a lot for taking the time to answer me about this. I understand perfectly the idea with the Viewshed in Mapview, even if i'm not aware how to do this on Arcmap. Actually, i have not drawn the actual line (on the top of my cliffs), but it will be easy. The idea of an inclinometer is actually pretty good i think, if i can choose the angles to bracket the search area. But obviously for me, it's seems pretty difficult to realized this operation on Arcgis. I have no idea where to start, sadly. 2014-12-09 0:11 GMT+03:00 Evan Thoms <geonet@esri.com>: Topographic profiles with the highest slope reply from Evan Thoms <http://jiveon.jivesoftware.com/wf/click?upn=Dg1s4x8le7Lmxv8KWGaqo7A4BXwO9PY1WvQ5cXCtK4-2Bh-2B-2FpGP4gx082DJOp-2Bz6mhojPMCSBw07RwL42-2B1XBFppS3XV-2Fd0hu-2BpZIrtnh-2FmeE-3D_SR9W2VKDgu2LLmpLZHslzXRkGhkz6BZH-2F0HfqCVFo3sobsKDgsW1OYnVfLhvDxwJAoetRCHoL5oSClGFsAHN3rcoVGPdIbsDpU9KYc9rJ2yu8aXkHb9tRLgeXoSddLDc7IeNGUY3xJlY6Yn3kZVbtXLvvB-2FAUtDsD8Wm9JvSjZysAUwUVkkuqWEReBKypWjNKhB0v5gBf-2BmVHC85lP02i-2F8qYlydwoMheCRa-2FlA7HcT8r8ZR-2FzpaBb8pJgW-2B7DX4B9ZwtVNvquhTVCYLTlsyvgFLJ1KOrcGYYaABEcq4PsTMYRftaUJggNa61cZI-2F-2FcO> in PONS Sylvain - View the full discussion <http://jiveon.jivesoftware.com/wf/click?upn=Dg1s4x8le7Lmxv8KWGaqo0VQjeJBYpG9HGC8QZBT-2FExyn-2Bw7viFnKzL0MXnEu8GqUKAm3oOuHuEXJk1z75hxO0oibTk-2BrEKftdcI6tvOCJM-3D_SR9W2VKDgu2LLmpLZHslzXRkGhkz6BZH-2F0HfqCVFo3sobsKDgsW1OYnVfLhvDxwJAoetRCHoL5oSClGFsAHN3rcoVGPdIbsDpU9KYc9rJ2yu8aXkHb9tRLgeXoSddLDc7IeNGUY3xJlY6Yn3kZVbtd5Onh0MnOp1bOJgAJ14dvFVEd8tHuBDHqRKIwWwblB56AWNjw0a5b0EDnmi2epoGyX-2BNCdL25JlSCUpEdP2y-2BnI1dKsWAAhetfBjiDohXaD9PR0IQAbFCe4uQaTKV2MrQSCob8KJUMREMm8kU9KQnioz-2F-2FZqJhuGWpxHUoGuB4w>
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12-08-2014
11:19 PM
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HI Bond, Thanks for the explanation about my problem. The real problem here is that my first line has not only one ground elevation. The height of the line is different of course, depend where you are. So i'm not sure this system will work? But i understand the idea, thanks to your image. Also, the problem is that i have to do a lot of profile (hundred, maybe more). I could maybe cut my polylign into small polylign (same height). 2014-12-08 23:22 GMT+03:00 Bond Harper <geonet@esri.com>: Topographic profiles with the highest slope reply from Bond Harper <http://jiveon.jivesoftware.com/wf/click?upn=Dg1s4x8le7Lmxv8KWGaqo7A4BXwO9PY1WvQ5cXCtK4-2FSrrmH2XhO94E70TEoPWcSsvlBNEYiyITFkGY670Tsj-2BEary0mv1TncXIQ8wZ6vs8-3D_SR9W2VKDgu2LLmpLZHslzXRkGhkz6BZH-2F0HfqCVFo3sobsKDgsW1OYnVfLhvDxwJAoetRCHoL5oSClGFsAHN3rcoVGPdIbsDpU9KYc9rJ2y4G-2F-2BxMAB98e-2FendKS00GJ-2Blf5oJQRXjMQei5Yk8gW-2ByWiu6hbCfB5ooV8b8uKyccfuvVzSttIKkvrVRPgl7ppUKMaT2ZYWdVlPpifBBnbj6pYHPVtR6aY-2FT-2F71BZzeE6J1W4BYXkF3TffX7h36namM66ToH4pzy5WT-2FpOBYKyugVswDEkwimvjaEHAdSuxFMUZv7yCxfDQoaC2d-2BJ2y5E> in PONS Sylvain - View the full discussion <http://jiveon.jivesoftware.com/wf/click?upn=Dg1s4x8le7Lmxv8KWGaqo0VQjeJBYpG9HGC8QZBT-2FEyBD042-2B6joj7mkOCOX5beoFnc6aZOAe4H70-2BxAfXbjEGgckRQ9vhmjslIgJHZxPTs-3D_SR9W2VKDgu2LLmpLZHslzXRkGhkz6BZH-2F0HfqCVFo3sobsKDgsW1OYnVfLhvDxwJAoetRCHoL5oSClGFsAHN3rcoVGPdIbsDpU9KYc9rJ2y4G-2F-2BxMAB98e-2FendKS00GJ-2Blf5oJQRXjMQei5Yk8gW-2B53cHpc3o18hUuDrS-2FJYqi5vp6HuSIjRbhhIOMhKQgcIhMqsszCN1JynBG7uP8QfGnzg8vgMBh-2BGj3pF6qoYOiZiNTRG0IKqBowWG2iyz4bkU47BBEbBgawlvU2ygYj-2FOiKdmLrxoxU1k4V9RXlQJXVdRgw9D6hfg3oqJQcSSxZt>
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12-08-2014
10:49 PM
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HI Bond, Thanks a lot for your answer. That's seems a lot more difficult than i thought! There is a lot of things to do, even if it's seems that you understand very well my problem. Can you take some times to explain step by step how can i do. 1) Draw a contour line along my cliff edge and assign the actual elevation (in a field)-> OK, understood 2) I don't understand why i need to draw approximatively an other line where i expect the slope intersect the ground? 3) Then i'm lost! Do you think it will be easier with the rastr calculator to do this problem? At the end, i'd need a polygone from the edge of my cliff for my first slope 32° and 2 othes ones for the 2 others slope Thanks a lot for your help!
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12-08-2014
11:20 AM
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Nobody has any idea where to start, or if it's even possible? I have check and i know drawing with a certain angle from a point is possible in Covadis (on a profile). Maybe there is a way to do on Arcgis? If not, maybe can i draw all my profile in Arcgis, and work then in Covadi. Any help would be much appareciated Thanks Sylvain
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12-08-2014
10:42 AM
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Hi, As anyone figure out a way to do profile graphs to scale directly in Arcgis, or, with a toolbox in Arcgis 10.2? I'll be very interested in something like this.
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12-05-2014
01:11 PM
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Hi everybody, First, sorry for my english, it's not perfect and i'll try to do my best here I'm actually working on a project in Madagascar and i have a lot of work do to with rockslide. Some place might be concern by this phenom and i'd like to work on Arcgis to calculate the propagation of blocks from a cliff in my area. The idea is "simple" and i've done it (in the past) on Mapinfo using topographic profile (with a raster) and then priting the profile and working on it. I'd like to do this on Arcgis with the software if it's possible. I have a DTM and a raster with the slopes of my area. I have some cliffs (materialized by a polylign for example) and i'll like to draw a topographic profile in the highest slope. This is relatively easy i think as there is a tool in arcmap to draw this directly. BUT, i'd like to draw a profile who start from the cliff, and with a certain angle (°). The angle is from an imaginary horizontal line at the top of the cliff. I would like to know where the line (from the top of the cliff) intersect the ground. An image is better to illustrate (see bellow). Drawing the topographic profile with the highest slope is possible for sure (even if i'm not sure how arcgis draw this profil)... This procedure is doable is Arcscène (in 3D) also and it might help me to work with that. Maybe it's possible. If someone have any leeds, clues, that'd be great I would really much appreciate some help here Have a nice evening Sylvain
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12-04-2014
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