Maya007

Hello, It worked after restarting arcmap again. Thanks all

Hello, I was doing some operation like euclidean distance over shape file and then some raster calculator in the model of ArcMap 10.4.1. Every sequential operations like finding the euclidean distance followed by reclassifying the distances and then applying some conditional formulaes using raster calculator all worked well. BUt when i ckecked the pixel value using tool Identify, it shows as no value. But the range of value shown in the resulting raster is correct. WHat could be the reason for this? Please help me guys. I did so many operations and when i finally checked all the ,aps, the identify tool gives no value at all points but the raster images shows the correct range of values in Table of contents. Thanks in advance, maaya

Hello all, I built corridors between core forests using the "Linkage mapper"(https://circuitscape.org/linkagemapper/) which is a tool that could be used in ArcGIS. But the final corridor image is a raster file with values based on the eqaution: Normlaised least cost corridor value = Cost weighted distance from core forest A + Cost weighted distance from core forest B - COst weighted distance accumlated moving along the ideal path (least cost path) connecting the core forests A and B. I wanted to limit the width of corridors using some simple logic but since the values in the corridor raster is based on the above equation i find it hard to limit the width. Could someone explain this equation and how is it formulated. Thank you, Maya

Thank so much for the fast answer! It helped me In the last step where we divide by 100, we also need to define the answer has to be in float, otherwise it assumes as integer and give answer as 0 and 1: Float("Myras")/100 /Maya

Hello all, How can i round the raster pixel values with 5 decimals to just 2 decimals in ArcGIS. I tried the round down and it converted the raster into an integer file which is not what i want. I want to make a value like 1.00469 to 1.00 or a value like 0.93589 to 0.94 etc. Thanks, Maya

Helo, Can someone explain difference between viewshed and viewshed2 in ArcMap? When i tried to run the Viewshed 2 tool, i got my results as a raster with just one value 1. Why is it so`? Any comments? Thanks, Maya

Hello all, I want to study the visibility of wind mills or the areas of land which can see the tall wind mills. I know the locations of the wind mills. I just need to check which all places on the land can see the windmill. I have the dem raster file of the terrain. I also have tree heights and building heights in the study area. When i use the viewshed tool, it asks for raster file which is the dem file and then observer points. In this case what are the observer points ? Thanks , Maaya

Hello again, Does someone know how to use OWA or ordered weighted averaging method in GIS as a multi criteria method? Thanks, Maaya.

Thanks a lot

A basic question here What are the differences between spatial analyst and 3d analyst tools? I see tools in these two formats for example : Hillshade available as 3d and spatial analyst. Which is best and when is it to be used? Thanks Maaya

Hello all, Can someone help me with the multi criteria evaluation to select a suitable site for wind farms using TOPSIS in GIS? I see mostly AHP method being used to find weights of factors, i want to use some other method instead of AHP to find factor weights. Please add in your suggestions :) Thanks in advance, Maya

Thanks Elman Mosaic to new raster also worked for me. I ll try this one too Thanks again, Maaya

Hello, I need to combine two overlapping raster layers. I would like the resulting map to get the values such that it takes the higher values from any of those two layers. For example:If one map has a value of 0.8 and other has 0.1 at same point then i would like the final map to get a value of 0.8 from the first map. How could this be done in arcmap? Can someone help me with it? Thanks a lot, Maaya

Thanks a lot

Hello all, I am trying viewshed in ArcMap 10.3.1. The tool actually worked so fast before last two days and now it has slow down and it takes more than 12 hours to reach the results. Why is it so? Did someone have this problem with Viewshed tool? What could be the reasons for slowing down? How to fix this? Thanks for the help, Maya

Thank you so much. It helped Now i am stuck with a new problem. The view shed tool is taking too much time to run. In th begining the tool run so fast but now its taking around 12 hours to run with the same input files. DO you have any idea why? Thanks, maya

Hello, I want to do a viewshed of tall towers. Trees height data are also available. How to take into account the height of trees when doing viewshed analysis ? thanks, maaya

Hello all, I want to add wind mill tower heights to the existing dem file at some places. How could this be done? Thanks for the help, Maya

Hello all, I am working with software TerrSet. How is it possible to export some values by selecting within a map. I dont want to consider industrial areas in a landcover map. So i want a map without industries from a landcover. Can someone tell me how is that done? I have worked with ArcMap where we can just select the features from the attribute table and export the map with the selected features. Is there any option like that in here? Thanks, maaya

I read in some instructions that it is safer to reclassify with codes like value in the reclass dialogue box instead of fields like ex: Geology . Is it because there are more possibility for errors in this than in the values. I find it more easier to reclassify if it is based on descriptions like geology. Are there some other reasons that reclassification works better with values than with fields like descriptions? Thanks, Maya.

Hello Lurker, Surprisingly it worked after closing the program and restarting. Thanks a lot, Maya

Hello again, I am trying to delineate watershed using ArcHydro. I wrongly marked the outlet and generated a batch point. i would like to delete this and start with new one. How could this be done Thanks, Maya

Thanks for the reply:) I am using version 10.5 ArcMap. I am attaching in the screenshot. I am trying to save it in Texas.gdb with the new file named as smdem. Btw I also have installed ArcHydro for the project and set the target locations. But have not started working with the tools. Will that be a problem? These are the steps which i did 1. Created Texas.gdb inside the same folder where mxd file is saved. 2. Set the workspace in geoprocessing as Texas.gdb. 3. Then clean the temp folders from ArcHydro App Utilities. 4. Set the Default Target locations in the App Utilities of ArcHydro files. 5. Used project raster tool to a new projected system and the files are shown to be saved in Texas.gdb which is assigned in the workspace. Tool runs and gives the green tick but file is missing When i run the tool without any of these steps and save the raster in the folder, it works. Does this mean rasters cant be saved inside geodatabase? Thanks in advance, maya

Hello all, I am trying to project a raster dem file using tool project raster in ArcMap 10.3. The tool runs and gives the green tick showing it is complete. But I don't find the output file in Table of contents/catalog or see any changes in the display. Neither I find the results in the folder where it shows as saved. Why is it so? Could someone tell what am i missing? Thanks, Maya

Thanks YaqubMughal It worked when i projected ratser