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Questions tagged [profile]

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

2
votes
1answer
42 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 ...
0
votes
0answers
33 views

Show Profile of Multiple DEMs in Elevation Profile Widget

I am currently using the elevation profile CMV widget (cmv-widgets/ElevationProfile.js at master · tmcgee/cmv-widgets · GitHub), and I'm looking to show the elevation profile of multiple DEMs along ...
0
votes
0answers
22 views

Storing densified line of profile graph as shapefile with ArcPy?

I know that in 3D Analyst option we can store the profile graph as a table and a shapefile. I would like to this with ArcPy. This is the script that I used for making a table.dbf : arcpy....
1
vote
1answer
47 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
1answer
88 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 ...
1
vote
1answer
162 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
1answer
133 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 ...
0
votes
1answer
422 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
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0answers
27 views

Why isn't variation in elevation across DEMs of different resolutions reflected in the profile graph? [duplicate]

In ArcGIS; Spatial Analyst. 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 ...
1
vote
0answers
22 views

Comparison of Elevation profile graphs over different resolutions

I have 4 different elevation profiles created along the same path at 4 different resolutions: 1m, 3m 5m, 10m DEM. All the profiles look the same. Not expecting this result. How can I get all the ...
2
votes
0answers
70 views

add points in existing profile graph with labels of its heights

I have created profiles at multiple locations with lines. Now I want to add points to that graph, how do I do that? Any suggestions? Here is the script import arcpy import os import matplotlib....
0
votes
0answers
45 views

Batch generate multiple elevation profile images from vector lines and DTM in QGIS

In QGIS, what is the most efficient way to generate multiple elevation profiles from multiple line segments and a digital terrain model? I use QGIS 2.18. I'm working on a project interpreting ...
0
votes
1answer
146 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 (...
0
votes
1answer
40 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 ...
0
votes
0answers
107 views

Creating one graph/profile with multiple lines/layers using ArcGIS 3D Analyst?

I want to create a graph/profile/cross-section with two lines derived from two layers (two DEMs) along the same exact line on the map. First, I thought all you needed was the 3D Analyst Toolbar which ...
1
vote
3answers
860 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 ...
1
vote
1answer
216 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: ...
1
vote
0answers
73 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 ...
2
votes
0answers
176 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 ...
0
votes
1answer
102 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 ...
-1
votes
1answer
80 views

Creating a TIN from beach profiling data

I'm a university student and have some experience with GIS but not loads. For my dissertation I am measuring beach profiles, using a dumpy level surveying technique, of some nesting habitats for the ...
1
vote
0answers
36 views

Creating stacked pipeline profiles using water utility network tools?

I downloaded the water utility network editing tool to create profiles of our sewer and storm systems including manholes with elevations. The profiling tool is pretty easy to use as you just click ...
3
votes
0answers
87 views

Displaying polyline shape with height in its profile?

Is there a way in QGIS itself or over a plugin to display a polyline shape with heights in its table from a sideview, as in a profile? I'm talking about QGIS in the version 2.14 and I have simple ...
0
votes
0answers
76 views

Getting profile graph and plotting Fresnel ellipsoid between two antenna using ArcObjects?

I have an ArcObjects C # tool that allows me to have the coordinates of two antenna after clicking on the map to calculate the distance between these two antenna. I need a code that allows me to ...
2
votes
0answers
357 views

Profiletool export error “global name 'os' is not defined”

I am using QGIS 2.18.5 and the Profiletool 4.0.2. plugin I tried to save my profile to an .png file and this resulted with an error: Traceback (most recent call last): File "C:/Users/b/.qgis2/python/...
1
vote
0answers
166 views

ArcGIS create profile graph from existing point feature

I have a dataset of X,Y points (with a spacing of 20m between the points) that represents a flowline along a glacier. Next to dat, I got another point dataset of the glacier height with X,Y points and ...
4
votes
1answer
2k views

Generating a series of cross sections (profiles) along a line?

I have a set of points (xyz) along an axis. Is there any way in QGIS to generate cross profiles along this axis each 10 meters with for example +-15 meters right and left from the axis?
3
votes
1answer
334 views

Raster DEM interpolation within overlapping vector polygon of water surfaces?

I am analyzing orthoimage and LiDAR dataset to find out flood areas. I extracted water areas as vector polygon from orthoimage using multiresolution segmentation in eCognition, and generated DTM (1.5 ...
1
vote
0answers
265 views

How to make a .pgw file for a .png depicting a 2D profile

My question is more of an inquiry about whether I am trying to do is possible. I would like to reference an image depicting a 2D Georadar profile. I know that world files are usually used for ...
3
votes
1answer
176 views

Elevation profile using linear shape in ArcGIS Desktop?

I'm working with ArcMap 10.2. So, it's not a duplicate of "Displaying elevation profile and storing DEM elevation back to KML line using QGIS?". I have a linear shapefile that has only one element (a ...
5
votes
1answer
88 views

Convert part of a raster file to .asc file

I'm a bit new at this. I have a DEM map (.tif) of an area in QGIS. I know that I can transform it to a text file (.asc) with raster -> translate. However, what I need is only a certain cross-...
1
vote
0answers
69 views

How do you find the longitudinal and cross sectional profiles of polygons?

I am currently carrying out a research project involving submarine canyons. The canyons are mapped as polygons and I need to find the longitudinal and cross sectional profiles of the canyons. Each ...
2
votes
1answer
170 views

Is there any difference between a stream's Longitudinal Profile and its Elevation Profile?

I have derived elevation profile of a river channel using USGS SRTM 1 ArcSec. I am interested to know whether Elevation Profile and Longitudinal Profile are synonymous?
2
votes
1answer
447 views

Baffling Elevation Profile out of Profile Tool Plugin

When using the Profile Tool plugin I get a graph that looks like the 2nd derivative of what I want. That is, it looks like the rate of change of the slope of the elevation profile. I just want the ...
1
vote
0answers
207 views

Calculate elevation profile for a line from dem data [closed]

We are trying to implement a service which takes a line geometry as its input and calculates elevation profile along that line from dem data (img format). How could we achieve this using postgis or ...
2
votes
1answer
217 views

Recording height profile from raster along a polyline shapefile?

I'm looking for the easiest way to record a series of raster values along a 400 meter transect in ArcGIS 10.3.1. I'm working with a LiDAR canopy height model with 3mx3m cells where each cell ...
3
votes
1answer
193 views

Visualizing elevation profile across a whole mosaic dataset?

I'm working with many DEMs derived from LiDAR data (IMG format) in a mosaic dataset. This allows me to create hillshade (or shaded relief) functions to display the data, which is great. However it ...
1
vote
0answers
217 views

QGIS Profile tool does not plot graph

I tried to use the Terrain Profile tool, but it wont display any graph, no plot, just grey. It calculates the values in the table, but it seems some plugin is missing or not working but I have no idea ...
0
votes
1answer
175 views

Creating an elevation profile along a KML road based on ASC files

I want to make the elevation profile of a road in KML. I've found this online tool but its does not gives accurate elevations. I already have .asc files of the whole area that includes the KML route ...
1
vote
0answers
60 views

Beaver ponds on stream profiles

I have a shapefile with polygons of beaver ponds and a DEM of the area of river watershed where ponds are located. I want to check if a river gradient and a river valley shape effect area of a pond. ...
3
votes
1answer
819 views

Utility Profiles — ArcGIS

I am currently working to convert our cities storm and sanitary sewers from 2D to 3D. Currently, we create profile views in CAD which means a lot of manual work anytime anything changes. We have a ...
3
votes
2answers
93 views

Making simple line more complex using QGIS? [closed]

I am trying to make my own version of code to generate elevation profile for a line drawn over a DEM and I got stuck very early on. As a simple use case: I have a line that consists of just two ...
1
vote
1answer
632 views

Replicate elevation profile extraction (3D Analyst toolbar) in ArcPy

How can I replicate in ArcPy the 3D Analyst Toolbar operations which extract an elevation profile from a transect line drawn atop an elevation layer? This will be incorporated into an automated ...
3
votes
1answer
2k views

Create profile graph over multiple rasters (ArcGIS 3D Analyst)

When having a raster which represents an array of values, for instance, elevation, I can generate a profile graph over a line I draw using the 3D Analyst toolbar. A sample graph: When generating a ...
4
votes
1answer
1k views

QGIS Profile Tool shows no profile

I have installed and followed the process to produce an elevation profile from the Route Profile plug-in in QGIS, but for some reason I am getting no profile to appear. The grids are from OS ...
1
vote
0answers
318 views

How to get the coordinates of the x-axis from a profile graph in Arcmap?

I have done already a profile graph in ArcMap drawing a diagonal line over a DEM image. Now I would like to add some point locations as it is showed in the attached figure. I set these blue points in ...
1
vote
0answers
403 views

Elevation Profile Google

I am creating a longitudinal profile in Google Maps. For this, I created a function that lets you draw a line and when it disappears just drawn. So far there is no problem, but when I return to view ...
0
votes
0answers
44 views

How to transform an irregular polyline into a straight one?

I would like to transform an irregular polyline into a straight one. Here are some details: I work with ArcGIS on a project in which I have an irregular polyline that is crossed by numerous streams. ...
1
vote
1answer
155 views

Right min/max values in single band color of an asc file and resulted profile

I'm using some asc files that covered the surface of an island; every file, when it's been imported, has a different min/max values in the single band color, which is the right? How can I understand ...
2
votes
0answers
289 views

From track+waypoints to elevation profile with waypoints

I have a track and waypoints (1) imported in QGIS. I want to calculate the closest point from every waypoint to the track (2). Then, I want a table with data that allows me to draw an elevation ...