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Elevation raster problem!
Hello everyone, I created a raster with the Topo to Raster tool. for this I used layers of points and lines with elevation attributes (TopoToRaster.png). Everything looks normal! However, after using the raster for other purposes, for example creating a Hillshade map, the result doesn't look very good (HillShade.png). In…
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Export elevation profile to table
Using Pro it is possivle to create an elevation profile for a feature; however this can only be exported as an image. Could an option be added to export as a table, csv or similar? Current workaround is to create points along the lines, add XY data and surface information and export this way (needing to compute euclidean…
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How to add value to area of raster bound by polygon?
I have a raster showing the topography of an area. I need to add 0.1 m to an area of the raster. I have tried making a new raster of the area that I need to add too, giving it a value of 0.1 and then adding them together however this reduces the siize of the raster to just the area that I have added to.
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GEOID18 to NAVD88 conversion
I have some GPS data with the elevation taken using the hybrid GEOID18. Can I covert the elevation values from GEOID18 to NAVD88?
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elevation profile
Hi i am completly new to this, i have set up a basic webscene , and now i want to add elevation profile to that map. but when i tried this url. ElevationProfile widget - user-specified input geometry | ArcGIS API for JavaScript 3.32 and tried to add the dependencies. it breaks my existing webscene which is using arcgis…
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How to merge or combine two overlapping DEMs (geotif files) into one?
I have two DEMs (geotif), one is of a larger area and the other of a smaller area located in the middle of the first DEM. The smaller area has some changes in elevation, next to the river banks there are newly formed landfills. I need them combined, so I have one DEM that embodies greater area with newly formed landfills.…
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Creating Raster from Strava GPX points
Hello! I am working on maybe an unusal project right now. I have downloaded a race route from my Strava account as a GPX file and then used the GPX to Points tool in Arc. What tool should I use that would and parameters so that this current point route (attached) could be converted into a straight DEM file. The current…
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Is it possible to interpolate ‘z’ values of just the selected features
Hi, I am currently editing a layer and in doing so I am losing the ‘z’ values of various features. I do have a TIN model wih which I may interpolate and regain the ‘z’ values. However I would like to know if it is possible to interpolate ‘z’ values of just the selected features and not all the layer.
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No output with Project Raster tool
I have a USGSDEM file downloaded from NRCAN. It has a known geographic coordinate system (GCS_North_American_1983) so I don't have to define the projection. I want to project this dem into a UTM coordinate system so I can eventually delineate a watershed. When I run the Project Raster tool it shows that it is processing…
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Delineating all area above a certain contour line... What is this called?
Hello, If you were to take a certain elevation threshold (contour line) and select all area ABOVE that line, you might end up with a polygon that is essentially a mountain top. I work for a non-profit organization that works primarily in watersheds but we also work in places like the buffer area surrounding the Mt.…
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How to display elevation contours in feet
I have created a Hillshade effect and would like to use the Contours tool on the 3D Analyst toolbar to show me the Contour Elevation in feet. Right now it is giving me something like. 118.258 instead of 7.8 feet How can I change this? Thanks
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Can We Change Default Re-Sampling For Rasters?
Team, The default or first option for any raster re-sampling / re-projection geoprocessing tools is "nearest neighbor". This re-sampling algorithm is explicitly for integer or categorical data. The other two options are for continuous data and represent interpolation schemes. Because "nearest neighbor" is the default…
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Create terrain effect over shapefile polygon in ArcMap 10.4
I have a Digital Elevation Model and polygon shapefile and I want to make an effect that polygons follow terrain structure according to DEM. If I just overlay it over DEM the polygon will be flat. I know how to do that in ArcScene, but I want to do that in ArcMap and not sure how. I have tried with Window\Image Analysis…
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How to find the highest and lowest point of a polyline
Hi fellas, I have a line feature, also have a DEM, just want to extract the highest and lowest points of this line. I will need to get the coordinates of the highest and lowest points of this line, to compare with the existing highest and lowest points data. Any suggestions? (Please find the demo data as screenshot)
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I have 2 DEMs (GeoTiff), I want simply to summarize them with Raster Calculator, but it doesn't work. I have empty elevation data (No values). How to do it properly??
Please!
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This question might not have a simple anser and I have read about it in a vast number of articles and forums. All with a different conclusion. Anyway, I have elevation data in an evenly spaced 2x2 asciitab. I want this data interpolate to a surface. Which
Dem, interpolation, elevation
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Contours to DEM creates pixelated DEM
Hey all, I am currently trying to create a DEM from ~1800 control points. Elevation ranges from 1820ft to 120ft. I created contours from a DEM generated by the contours. I have continuously had issues with the output rasters being extremelty pixelated. The pixeIs are generally 200m by 160meters using the NAD 1983 Zone 18N…
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Is it possible to overwrite elevation layer
Hi, I have elevation layer in portal, that has been published from SDE referencing registered data. I have modified the raster that the layer is using (appended additional area) but I don't see these changes in portal. I thought maybe it is because the extent is now different? To fix the issue, I then started to look for…
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Referenced Mosaic Dataset Calculate Statistics Error
Hi, I've produced a referenced mosaic dataset from a mosaic dataset of elevation data. On the referenced mosaic dataset I've added a hillshade raster function. I'm wanting to calculate statistics on the referenced mosaic following the guidance in the document: Managing elevation data, Part 3: Workflow steps—Help | ArcGIS…
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Contour Tool Output Differences between ArcMap and ArcPro?
Working in ArcPro (2.4), I generated contours on a hypothetical surface I created for a grading project. The results didn't appear correct because contours had not generated for all the elevation values. More specifically, a contour line hadn't been created for the top elevation value. I ran the contour tool again in…
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How to correct a DEM to another DEM?
Hi everyone, I made a few orthomosaics and DEMs in agisoft and the elevations are inaccurate. I want to correct the elevations of my DEMs by using Arctic DEM ( a much more accurate DEM), but I have no idea how to do this! How do I adjust/correct one DEM to another? I assume this has been done before. Any help is much…
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Classifing ESRI's World Elevation Layer does provide full spectrum of values
Anyone happen to know why I might not be able to might classify the ESRI world elevation imagery layer's slop in percent from the ranges of 0-1000? I go to the layer in the webmap viewer to adjust the imagery display options. When I set the Renderer at Slope_Percent, Image Enhancement Symbology Type of Stretch, I can see…
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Why isn't variation in elevation across DEMs of different resolutions reflected in the profile graph?
I have a DEM at various resolutions: 1m, 3m, 5m, 10m, and 30 meters. In Spatial Analyst I have interpolated the same 1km line across the each of the DEMs, expecting to get variation in the graph output....especially with comparison to the 30m DEM. As you can see, the graphs look identical. However, when I have identified a…
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Value Incongruity in DSM and DEM
Hello, I posted about this last week, but realized i didn't provide enough information. I need to create a Canopy Height Model. I am running ArcGIS Desktop 10.5.1. I have a "DSM" that includes man-made structures. and a DEM. The structures have to be removed from the raster for it to be a usable DSM, so I digitized the…
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Map Algebra
Hello my friendly GeoNet community! I need to create a Canopy Height Model. I have a "DSM" that includes man-made structures. and a DEM. I digitized the structures, turned them into a raster and used a Con in Raster Calculator to create a raster layer of just the DEM values, and then mosaiced the DSM into the structures…