Latest Contributions by FidelTedla

‎11-27-2022

Thanks Dan.

‎11-26-2022

Hi, I am using ArcGISPro 2.8.0. I have point and raster elevation data. I am looking to calculate the slope around each point and delineate the boundaries of the area (around the point) where the slope is less than 5%. What tools/workflow can be used? Thanks Fidel

‎02-05-2021

Solved. Issue was that there were duplicate points in my input data (point layer). Once the duplicates are removed the tools work as expected.

‎02-03-2021

All points are within the projection bounds. I run the Generate Near Table tool using Geodetic and didn't make much difference as the distances I am looking at are ot that long. Not sure where the issue is coming from.

‎02-01-2021

I am using Planar method in the near tool. The coordinate system of the dataframe and the point layers is 'ETRS 1989 LAEA'.

‎02-01-2021

I have two point layers (layer-1 and layer-2). - I used 'Generate Near Table' to identify connections between points in layer-1 and layer-2. I used a search radius of 5000m and maximum number of closest of 10. - I then used the 'XY To Line' tool to create connection lines between the connections identified in the first step. Issue: some points in layer-1 are connecting to less than 10 points in layer-2 although there are more layer-2 points within the 5000m radius. In the attached image the three green lines are generated by ArcGIS and orange broken-lines are not generated but are within the 5000m radius. What could be the reason and how do I correct this? Software: ArcGIS Pro 2.6.0 Thanks

‎05-19-2019

Thanks Dan. The first method did what I needed to do.

‎05-18-2019

I have multiple polylines in a layer. I want to do the following: I want to identify those lines that have the same starting point (I have x and y coordinates in the attribute table), Then check another attribute (say length) for each line and select the line that has the shortest length I want to do this for all the lines in the layer and add to the selection each time the above criteria is met until all lines in the layer are completed. Please see attached attribute table. Thanks

‎06-04-2017

The 3x3 window is just as an example. My real neighborhood window is going to have a radius of few kilometers. By having a moving window I am making sure that there is an overlap between the windows resulting in combinations of min or max locations from different windows. My aim at this point is just to find the areas where there is level difference (using the focal range tool) and locate the highest and lowest points. As mentioned above, I will later apply other criteria to determine their suitability to construct reservoirs, nearness to water sources...etc. The raster I sent you is just a very small part of my input DEM. My real DEM is as big as a country the size of Germany.

‎06-04-2017

Thanks Dan. Yes, for every moving window I want the location of the minimum cell in the original raster (not in the focal min raster). In the above example if we look at the array of the original raster, for the top 3x3 window (central cell 606 in original raster) the minimum is 581 and its location in the original raster is 3rd row and 3rd column. For the next 3x3 window moving to the right (central cell 592 in original raster) the minimum is 572 and its location in the original raster is 3rd row and 4th column. But if it happens that there are 2 minimum values within a 3x3 window in the original raster, then I would want to know the locations of both. The reason for wanting to know the exact location of the minimum values is that I will later use criteria to screen those locations in terms of their (terrain's) suitability to construct a reservoir at those locations. I hope this helps.

‎06-03-2017

This is not what I am looking for. This is the original raster minus the Focal Min raster. As explained in one of my posts above this is not giving me what I am looking for. I am looking for the location of the min or max for each central cell. That means the number of min or max locations to be identified must be equal to the number of cells in the original raster.

‎06-03-2017

Here you are

‎06-03-2017

Sorry didn't read your whole message when I when I sent the previous reply. Will send it.

‎06-03-2017

Do you mean image of a typical pumped storage hydropower site?

‎06-03-2017

Dan_Patterson‌, curtvprice‌, xander_bakker‌ I am trying to find upper and lower reservoir locations for potential pumped storage hydropower sites in a large area. My input is a Digital Elevation Model. So if I use a non-overlapping neighborhood, I will miss many possible upper and lower reservoir combinations in which one of the reservoirs lies in one neighborhood and the other reservoir in the adjacent neighborhood. I am not familiar with NumPy Arrays and would really appreciate any help. Thanks Fidel

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Date Last Visited	‎11-28-2022 01:02 AM

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Latest Contributions by FidelTedla

Re: How to delineate an area that has a certain slope

How to delineate an area that has a certain slope

Re: 'Generate Near Table' and 'XY To Line' Not Working As Expected

Re: 'Generate Near Table' and 'XY To Line' Not Working As Expected

Re: 'Generate Near Table' and 'XY To Line' Not Working As Expected

'Generate Near Table' and 'XY To Line' Not Working As Expected

Re: Identify lines starting from the same point and select the one with the shortest length.

Identify lines starting from the same point and select the one with the shortest length.

Re: How to identify the highest and lowest pixels within a defined neighborhood area of a central pixel

Re: How to identify the highest and lowest pixels within a defined neighborhood area of a central pixel

Re: How to identify the highest and lowest pixels within a defined neighborhood area of a central pixel

Re: How to identify the highest and lowest pixels within a defined neighborhood area of a central pixel

Re: How to identify the highest and lowest pixels within a defined neighborhood area of a central pixel

Re: How to identify the highest and lowest pixels within a defined neighborhood area of a central pixel

Re: How to identify the highest and lowest pixels within a defined neighborhood area of a central pixel

Re: How to identify the highest and lowest pixels ...