Questions tagged [profile]

A representation of the values attained by a surface along a line (or path).

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Create longitudinal profile of a stream out of a river system in QGIS

I have been using 'profile tool plug-in' in QGIS 3.20.1 to visualise longitudinal profile of the river in QGIS. Selection options, i.e. temporary polyline; and selected layer, are working well. ...
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QGIS 3.16.14 Profile tool plugin

I am using the Profile tool plugin, with the Qgis. When I export a cross section as a 2D profile dxf, I open it in a CAD program, it has one layer with the profile line and 5 more layers with no data. ...
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  • 667
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QGIS "Profile Tool" Plugin inaccurate reading

I'm getting an inaccurate reading from QGIS "Profile Toll" plugin as you can see in the image below. Not only is showing incorrectly which of these two peaks is the highest, but also the ...
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Red line related to profile plugin won't go away

I have been experimenting with the plug-in for profiles in QGIS v3.4.11. Red line won't go away from previous selection. I have turned on/off all layers and investigated all layers and it doesn't ...
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1 answer
68 views

Spectral profile mapping for Sentinel

I want to plot spectral profile for Sentinel image. For this, I write such a code: var Sentinelbands =['B2','B3','B4','B5','B6','B7','B8','B8A','B11','B12']; var Sentinel=ee.ImageCollection("...
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How to download many elevation files to make a profile along a sizeable path in QGIS?

I'm trying to put together long profiles for rivers, which necessitates getting elevation profiles along polylines that span large distances. I wasn't sure how to acquire the elevation data. I don't ...
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5 votes
1 answer
116 views

Creating longitudinal section from points using QGIS

In the real world: I have a underground pipeline which has just been laid. A surveyor has come along and taken shots to the top-of-pipe at each join along that whole pipeline. In GIS: I have brought ...
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Comparing polylineZ elevation to DEM at various points along the line, not just the vertices

I have a polylineZ feature that represents sewer lines. I am looking for areas where points along the line may be above ground elevation, representing aerial lines. The problem is that I need to ...
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QGIS Print Composer Multiple Atlas for different Map views

Is it possible to have two different coverage layers in the QGIS 3.18 Print composer Atlas settings, that differing map windows follow? I am creating a multi-panel chart and would like 3 of my 4 ...
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54 views

How can I draw a vegetation profile on ArcMap or QGIS?

I have two layers: elevation (raster) and vegetation map (polygons). I would like to generate an elevation profile with a line that besides having the elevation form, appears the length of the ...
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How to extract topographical data from a profile drawing

I have what seems to be an uncommon problem: I have dozens of raster files containing profile drawings (x,z or y,z) and a raster map that shows their (x,y) extents. I want to be able to extract the ...
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-1 votes
1 answer
54 views

Seeking tool to generate topographic profile from points

I'm trying to generate a topographic profile, but not the typical terrain profile. To do this, I generate a grid of points uniformly distributed on a surface of a DEM. From these points (from which I ...
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42 views

My points are coincident in ArcMap unprojected, but jump off the line when projected as well as viewed in Google Earth, is this a projection issue?

Let me give you a run down of my workflow to better understand the problem. Essentially what I am doing is creating an elevation profile of a line in QGIS, taking the points out to do some spreadsheet ...
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2 votes
1 answer
100 views

Building exaggerated elevation profiles from VRT DEM in QGIS

I have this little challenge, where I need to build an elevation profile from a VRT DEM mosaic of +5000 TIF files. All Z-values should be exaggerated by factor 10 as it's common in road construction. ...
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96 views

Elevation profile of earth [closed]

Where can I find elevation data for the entire earth so that for a given location (coordinate) on the earth, I can find out the elevation of that particular location? In particular, I am curious, what ...
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1 answer
317 views

Launching QGIS with specific user profile

By default, when you launch QGIS, it shows the most recent user profile you worked with. It's not convenient because I have settings in various languages and locales and have to switch frequently ...
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7 votes
2 answers
957 views

Elevation Profile with labels on waypoints (QGIS, Python)

I would like to plot many elevation profiles with labels on specific waypoints (Points of Interest). In the end it should look like this: Or like here: https://www.birdandhike.com/Hike/Mt_Char/...
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1 answer
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Using multipolygon shape layers in profile tool

I am working with QGIS for some time. The profile tool is indeed very useful to visualize the 3D problems. My problem now is associated with this tool. I have a multi polygon shape layer which I ...
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1 vote
0 answers
42 views

Median stack profile in QGIS

I am trying to create a median or average stack profile on a DEM in QGIS but I can't find any tool or plugin for it. This feature is implemented in GMT 1). Can anybody give me a hint of how it can be ...
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0 votes
2 answers
144 views

Elevation profile that can follow the change in view of Atlas page in QGIS

I think I have read every thread on QGIS profiles in the stack and I cannot find a way to create a profile that can be produced in context on each page of an atlas print. I can create an image for ...
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4 votes
1 answer
197 views

Creating Stacked Line Profiles in QGIS

I'm wondering if it is possible to create stacked line profiles, to display either geophysical data collected along a line, or geochemical data also along a line? Datamine Discover has a feature that ...
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1 vote
0 answers
32 views

Generate multiple profile charts from multiple lines on multiple DEM [closed]

I'm trying to figure out how to generate automatically (need to be repeated 2k times) a profile cut of 2 DEMs, every 10 meters, with distance from start as a title and customizable colors/scales as an ...
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2 votes
1 answer
153 views

DEM interpolation, QGIS 3.10

A friend of mine gave me DEM resolutions of cells 5x5m, but there is something wrong with interpolation. When I try to make a cross-section of the terrain I get a pretty inaccurate cross-section, with ...
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  • 2,197
0 votes
2 answers
77 views

Creating arbitrary profile?

I am trying to create a transect profile and extract information for each specific bands of Landsat which will be further used to create a transect graph. Is there any direct way of achieving this ...
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5 votes
6 answers
488 views

Improving resource consumption of Profile Tool Plugin of QGIS

I'm trying to generate a profile along a track (bike trail) using the Profile Tool Plugin from QGIS, but it consumes more than 14GB's of RAM so it can't finish it's work. DEM: 200m GeoTIFF Profile-...
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6 votes
1 answer
147 views

Difference between merge and create virtual raster

I have the DEM of a defined region that has been split into sub-DEM with a resolution of 1 km x 1 km. When I merge the sub-DEM to create a single DEM (Raster -> Miscellaneous -> Merge), the overall ...
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  • 1,052
1 vote
1 answer
676 views

Cutting/ exporting multiple terrain profiles to CSV files with QGIS?

I am trying to cut multiple terrain profiles and export them to CSVs (individual or combined). I have a shapefile of the profile lines, and a DEM to cut the profiles from. I can do this manually ...
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3 votes
1 answer
419 views

Elevation Profiles Using QGIS vs. Google Earth

I have several routes I am calculating elevation stats for. What I want is Total Ascent/Cumulative Gain, where all ascents and descents are accounted for. As opposed to solely the difference between ...
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1 vote
0 answers
131 views

Cross section profile distance not providing accurate distances?

I have created a DEM file, which I am using to draw a cross section along a line to see the variation of height from point A to point B along land seen below. When it use the Profile tool on the ...
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3 votes
2 answers
2k views

Creating DEM Contour files from shapefile line data in QGIS

There are many question occurring on this forum regarding this issue, however the issue I am facing has not been answered in Generating DEM from contour Shapefile using QGIS?, which is that I have ...
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0 votes
1 answer
242 views

FileError: 'http://localhost:8080/geonetwork/catalog/lib/style/bootstrap-3.0.1/variables.less' wasn't found (404)

After installing the geonetwork version 3.2.1 and the plugin of the iso19115-3 everything work fine. But when plugin the lampv2 profile, this error message shows: ## FileError: 'http://localhost:8080/...
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2 votes
1 answer
69 views

Interpolate Line Tool giving different results?

I have been using 'Interpolate Line' Tool in the 3D Analyst tool pack to create a profile graph so I can analyze interpolated results gathered from an IDW created surface. However, when I use the tool ...
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2 votes
1 answer
279 views

Forcing left to right order of cross section lines of river using QGIS

Based on "Generating a series of cross sections (profiles) along a line?" post, how can I force the cross-section lines to be created, thus collecting elevation data, from LEFT to RIGHT ...
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1 vote
0 answers
35 views

How do I compare multiple years worth of geomorph changes in a river while drawing one profile line?

I have many years worth of DEMs of a river I'm studying. I'm very, very new to ArcGIS (think one intro class), and learned how to use the 3D analyst tool. What I'd like to be able to do, is to draw ...
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4 votes
1 answer
1k views

Visualizing vertical profiles from LiDAR point clouds in R?

I would like to visualize the vertical profiles of different LiDAR point clouds in different forest types. I have extracted the z-values from the LiDAR files with lidR and put them in a dataframe with ...
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2 votes
0 answers
448 views

Complex 3D/elevation profiles in ArcMap 10.6

I'm looking to create a more informative 3D Profile than appears possible with vanilla Arc tools. Honestly I'm kinda surprised that this doesn't exist, maybe I'm searching the wrong terms. Situation: ...
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  • 21
4 votes
3 answers
581 views

Show elevation profile from linestring's z values

I have linestring geometries with z values and I want to display them in a nice elevation profile (with x/z scaling functions, several profiles to overlay, and so on). Is there any QGIS function or ...
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1 vote
1 answer
469 views

Displaying Distance in Miles for Elevation Profile using Profile Tool in QGIS

I am attempting to generate an elevation profile in QGIS 3.2.2, with elevation in feet, and distance in miles, using Profile Tool. I have managed to convert my DEM files to feet, and the elevation of ...
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3 votes
1 answer
876 views

Project a point onto a profile tool graph in QGIS

I'm using the Profile Tool add-on in QGIS to extract a profile of a raster data layer. Along this profile there are a series of points which I'd like to project onto the Profile Tool graph so that I ...
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2 votes
3 answers
7k views

QGIS Profile Tool - Terrain Profile

I'm trying to get a Height Profile for a certain route using the profile tool (terrain profile). Does anyone know how i can get the slope in percent and in degrees in the table of the profile tool so ...
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1 vote
1 answer
837 views

Creating longitudinal profile for pipeline using QGIS?

I have a sewer system in QGIS and i wish to know if is possible to create a longitudinal profile between two manholes, showing the terrain and the pipeline. In each point (manholes) I have in ...
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  • 13
0 votes
1 answer
4k views

Creating Elevation Profile from Line Shapefile of Contours using QGIS?

I have a line shapefile that contains contour lines. The attribute table of the shapefile has a field that gives the elevation of each line. I would like to draw a line across the contours and get an ...
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1 vote
0 answers
82 views

Adding points in existing profile graph with labels of its heights using ArcPy? [closed]

I have created profiles at multiple locations with lines. Now I want to add points to that graph, how do I do that? Here is the script: import arcpy import os import matplotlib.pyplot as plt ...
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  • 79
1 vote
1 answer
1k views

Profile/Transect tool in QGIS like Arc's interpolate transect tool?

I am quite new to GIS. I am trying to determine the values along a transect of a raster in QGIS. I can perform this task in ArcMap using the profile tool however I've tried several methods in QGIS (...
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  • 11
0 votes
1 answer
236 views

Getting elevation profile graphs along parallel interpolate lines using ArcGIS 3D Analyst? [closed]

I'm new to ArcGIS. I have used "Interpolate Line" tool in the 3D Analyst Toolbox to get an elevation profile graph. How can I create several parallel interpolate lines, maybe with specific distance ...
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2 votes
3 answers
1k views

QGIS 3.0 Girona using profile tool, get python error

I have a raster layer (LIDAR data) selected. On releasing the mouse button, and before any rubber band starts, I get this error: Message log: 2018-03-09T16:19:08 WARNING Traceback (most recent call ...
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2 votes
1 answer
792 views

How to fix a broken plugin (it cannot import name NavigationToolbar2QTAgg)

I want to use the the pluging ProfileFromPoints but I am getting an error saying cannot import name NavigationToolbar2QTAgg. The solution seems to link with an old library name as mentioned here: ...
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  • 3,089
1 vote
0 answers
137 views

Which geographic coordinate system should I use to work in meters in Angola?

I am using WGS84 in Qgis 2.18, but when I try to use some Qgis Plugins (like Profile Tool and Q-Ras) they don´t work. Is it a coordinate problem? Or something else? Profile Tool: It makes the ...
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2 votes
0 answers
629 views

Qgis Profile Tool plugin with wrong units

I am using qgis 2.18. I installed the plugin Profile Tool and i am trying to do a terrain profile from a DEM. I am working in projection WGS 84. The profile i made with that plugin doesn't have the ...
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0 votes
1 answer
416 views

Automating calculation of cumulative elevation for multiple line segments (not the profile graph)

I'm using ArcGIS and am trying to figure out how to calculate the cumulative elevation gain (in feet or meters) for over 1,000 line segments representing separate, often unconnected trails. I have a ...
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