Questions tagged [profile]

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

Filter by
Sorted by
Tagged with
0 votes
0 answers
55 views

Displaying elevation profile of vector layer using QGIS

I am using QGIS 3.28. I am trying to generate an elevation profile from a vector layer. I typically use the "Profile Tool" plugin to accomplish this task, but I recently learned that QGIS ...
0 votes
0 answers
27 views

QGIS Profile Tool displaying inconsistent horizontal axis values

I am analyzing stream channel gradients on Mars. The workflow is essentially to grab a Mars DEM from the HiRISE website, reproject it into ASU's preferred Mars 2000 CRS, use the SAGA Basic Terrain ...
1 vote
1 answer
37 views

QGIS Scale print of ground surface profile

I am trying to print a scale version of a ground profile generated using either Profile or QProf. Neither of these tools seems to allow me to print to scale so that I can measure with a ruler both ...
4 votes
1 answer
70 views

Delete temporary canvas object in QGIS, e.g. lines drawn by the Profile Tool

I'm using the Profile Tool plugin (https://plugins.qgis.org/plugins/profiletool/) over a valid GeoTIFF raster DEM in QGIS 3.26.2-Buenos Aires on Ubuntu 22.04.1. When you draw a line using the "...
  • 8,963
0 votes
0 answers
33 views

Scale y axis on elevation profile chart

I am generating elevation profile graphs from hiking trails (GeoJSON). Use as maximum and minimum values of the Y axis the value of the maximum altitude and the minimum altitude of the route. The ...
0 votes
0 answers
194 views

Crash when running algorithm via PyQGIS plugin

I use a Python plugin which is working great on my computer. But on another one, I get an error at the execution of an algorithm from processing package in PyQGIS: ## Report Details **Python Stack ...
  • 1,023
2 votes
2 answers
148 views

QGIS open project with specific user profile

I have different user profiles in QGIS, each for different tasks. For example one profile only for digitization. In this profile, only the functions that the user needs for digitization are enabled, ...
0 votes
1 answer
100 views

Fix the scale of Y-axis and X-axis in profile tool plugin in QGIS

As I change the size of the profile-tool window in QGIS, I get graphs of different sizes when I export them. Hence, it is not giving me repeatability since it is not convenient to compare graphs with ...
  • 37
1 vote
1 answer
113 views

Draw topographic profile along transects perpendicular a river

I have a DEM; river (shapefile) ;and a shapfile of containing all the transect of length 5km drawn perpendicular to the river at an interval of 300m each. I am using QGIS 3.8.2. I want to draw ...
  • 37
1 vote
0 answers
52 views

How to show the profile of a ZPolyLine with QGIS 3.26 profile tool

I am trying out the new QGIS 3.26 profile tool. (actually a Linux build of today's master: 2f3d6b, so 3.27) I imported a SRTM DEM. I can create a ZPolyLine and use it to plot the Terrain Elevation of ...
2 votes
0 answers
76 views

Creating longitudinal profile of stream out of 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. ...
  • 37
2 votes
1 answer
138 views

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 ...
0 votes
1 answer
162 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("...
  • 107
1 vote
0 answers
73 views

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 ...
5 votes
1 answer
184 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 ...
  • 51
0 votes
0 answers
69 views

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 ...
  • 41
0 votes
0 answers
93 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 ...
  • 1
1 vote
0 answers
64 views

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 ...
-1 votes
1 answer
74 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 ...
0 votes
0 answers
46 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 ...
  • 43
2 votes
1 answer
142 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. ...
  • 4,506
-1 votes
3 answers
103 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 ...
  • 99
9 votes
1 answer
482 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 ...
  • 804
7 votes
2 answers
1k 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/...
  • 286
1 vote
1 answer
51 views

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 ...
  • 11
1 vote
0 answers
47 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 ...
0 votes
2 answers
210 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 ...
4 votes
1 answer
259 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 ...
1 vote
0 answers
37 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 ...
  • 11
2 votes
1 answer
214 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 ...
  • 2,299
0 votes
2 answers
94 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 ...
  • 1
5 votes
6 answers
562 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-...
  • 7,841
6 votes
1 answer
193 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 ...
  • 1,102
1 vote
1 answer
879 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 ...
3 votes
1 answer
606 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 ...
  • 99
1 vote
0 answers
166 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 ...
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 ...
0 votes
1 answer
278 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/...
2 votes
1 answer
79 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 ...
3 votes
1 answer
331 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 ...
1 vote
0 answers
36 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 ...
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 ...
  • 337
2 votes
0 answers
479 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: ...
  • 21
4 votes
3 answers
753 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 ...
1 vote
1 answer
537 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 ...
3 votes
1 answer
996 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 ...
  • 231
2 votes
3 answers
8k 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 ...
1 vote
1 answer
980 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 ...
  • 13
0 votes
1 answer
5k 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 ...
1 vote
0 answers
95 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 ...
  • 91