Questions tagged [path]

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Using ArcGIS path distance tool and vertical factor to estimate fuel used by automobile

I am attempting to use the Path Distance tool (either in ArcMap 10.7 or ArcGIS Pro 2.8) to estimate the amount of fuel vehicles need to drive across the landscape. I have the typical gas mileage/fuel ...
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0 answers
27 views

Updating string field with a path by using Field calculator . Version 3.18.2

Us it possible to update newly made string type field (column) with a path to a file on a local drive by using "field calculator". I tried with first defining type of field as "String&...
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23 views

Exporting selected features with predefined path to data and their name in QGIS with Python

I am trying to export selected data with predefined path where the data should be saved and how they should be named. Currently in my script I use the direct path and name, but I need to automate this ...
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  • 23
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0 answers
13 views

Problem with linked features when migrating from Windows to Mac

In my project, several features have PDF linked to them, the PDF relatives paths are stored in a column and I open them with the basic Open Url action or with a hyperlink in blue. There is no problem ...
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2 votes
1 answer
53 views

Relative Path when linking a pdf to a feature

I'm trying to link PDF to features in QGIS. I do that by putting the path in a column named "PDF" and execute the default open action or a generic action command. So basically I don't have ...
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  • 23
2 votes
3 answers
130 views

QGIS points to path - colouring path/line with gradient colour

I'm using QGIS 3.16.15-Hannover (LTR). By using "Points to path" from the toolbox I created a path/line between several points from a CSV. However, I did not find any way to colour the ...
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  • 111
1 vote
0 answers
30 views

Selecting path between two lines using ArcGIS Pro without creating network dataset

I am using ArcGIS Pro 2.9 without a Network Analyst license so I cannot create a network dataset. In a feature class of connected lines I would like to be able to select any two of them and find a ...
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249 views

Dynamically scale line weight in Folium (polyline or antpath)

I draw lines and ant path in folium and I need to scale width of line for example 12 km width line but I can't use simple weight because it has dynamic width that changed when zoom in or out loc = [[...
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1 vote
0 answers
30 views

Cutting overlapping line by priorities

I have several line layers following an unique and same path. On some part, these layers overlap each others, so there are multiples segments overlapping. I need to find a way which grants me the ...
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  • 21
0 votes
1 answer
128 views

Folders path with new version of QField

Through the QField app version 1.9.5 I imported some projects, with the related data, created with QGIS. The path I used to import the shapefiles and projects created during the field work was the ...
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  • 1
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1 answer
89 views

Calculating distance of a path/vector through multiple points in QGIS 3.16.3

I created a .csv file with coordinates to show a route between two locations where I live. I want to figure out the distance one would travel to arrive from one location(A) to another(B). With '...
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3 votes
0 answers
57 views

How to pick and export the deepest points of a DEM

I am trying to work out how I can pick and export (to XYZ) the deepest path of a DEM. I have a DEM surface (created from an 20cm XYZ file) where a straight line trench has been cut and I wish to pick ...
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  • 71
6 votes
0 answers
123 views

Time-Space aquarium with paths

I am trying to reproduce this kind of spatial representation with QGIS. It's a space-time aquarium where each line represents a path compared to time: It is a representation from the Time geography, ...
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  • 71
-1 votes
1 answer
75 views

How to solve error when querying the .shp file to Excel?

I am making a Python code with geopandas and xlwings, what I do is colsulse .shp files from Excel, it works fine but when it reaches the last line of the code wb.save (in_file) where it should be ...
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108 views

QGIS point to path not aligned with road

Can I use QGIS 3.10 to display overlaid encoded google polylines, with the purpose of showing road network activity? I am using QGIS 3.10. I have a series of GPS points that go from one origin to ten ...
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0 answers
125 views

Errors in loading qgis_app.dll

I have built QGIS source code in Windows 10, QGIS is running success fully, I made a setup installer using innosetup with the all dependencies OsGeo4W folder. I instaled to run application on the ...
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2 votes
0 answers
44 views

How to make scripts visible for import in PyQGIS

This script imports the desired module when used outside of a PyQGIS script in QGIS. How to tell QGIS where to look for the scripts, if not with sys.path.append()? import sys import os try : ...
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1 answer
25 views

How to export vector layer containing polylines into polygons in Google Earth

I'm using QGIS 3.16.5 Hannover and I already knew how to convert vector layer (from AutoCAD containing polylines) into KML format. When I export it as KML and open it up to Google Earth Pro, the ...
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2 votes
1 answer
399 views

Creating path between many points in Google Earth

Is there any specific way to convert approximately 25000 points in Google Earth Pro to paths or draw paths between points automatically? Since I want to obtain their altitude data, I need it to be a ...
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  • 21
1 vote
0 answers
55 views

How to link SQL file with relative path in Processing Scripts

I wrote a processing tool, which exports some tables from PostGIS to package, and as part of the export, I am calling an external SQL file to add some triggers, etc. The SQL file is located as my ...
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  • 1,363
2 votes
1 answer
97 views

Does QGIS support WMS/WCS Connections that use path variables?

With QGIS, I have added and configured WMS and WCS connections for parameter queries as per the applicable specifications and I am able to add the layers and view imagery. However, I have a need to ...
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2 votes
1 answer
87 views

Using Points to Path Plug-in of QGIS

I was able to use the Points to Path plugin to create a simple line with a label in the middle: Here is the very simple text file I used: ID;GEOM "BL2990";"LINESTRING(490206.73 214102....
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  • 353
3 votes
0 answers
78 views

Viewing images with relative path through Attributes Form in QGIS

I work with Sw maps (field data collector) that generates shapefiles in which a field links to images through relative path. Originally I had non problem using Evis plugin, now discontinued. Now I ...
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0 votes
1 answer
104 views

Finding best path through set of many points using ArcGIS Pro

Assume I have many points, say 100 or more, that represent a station to visit. I want to choose one of them as a starting point, and then navigate to each and every one thereafter to take a sample of ...
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0 votes
1 answer
46 views

Access GDAL result output

I have used rasterize function from GDAL in order to rasterize a shapefile that I have according to existing raster. The problem is that I'm not able to find or to show the resulting raster. This is ...
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6 votes
0 answers
231 views

QGIS Modeler using File/Folder input paramerter

I would like to use the File/Folder input parameter to set a path for all output layer files. I was trying to connect the File/Folder parameter to my output from a model and set a default folder path. ...
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  • 61
1 vote
1 answer
449 views

Saving a shapefile to an output file path in my function(which the user will provide)?

I have a function which takes the coordinate argument from the user and converts it to a shapefile, and finally saves that shapefile to the filepath that the user gives. This is the code... epsg_code ...
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0 votes
1 answer
414 views

Unable to deserialize entity which contains field with type org.postgresql.geometric.PGpath

I have an Entity which has a field named coordinates of type org.postgresql.geometric.PGpath : public class Geometry { ... @Column @NotNull private PGpath coordinates; I am trying to ...
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  • 231
0 votes
1 answer
517 views

DLL load failed while importing _core. Environment path using PyQGIS

I am stuck trying to code a custom application with QGIS and Python. I have some Python knowledge but I am quite new to QGIS. I tried the intro of the cookbook: Running Custom Applications. Now while ...
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2 votes
1 answer
83 views

Getting the first point's coordinates of column with type path

I have the table above CREATE TABLE public.geometry ( id serial not null primary key, distance float not null, height float not null, coordinates path not null, ...
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  • 231
3 votes
1 answer
220 views

Exporting shapefiles as SVG polylines

Recently I've been using QGIS to create fracture tracemaps as line shapefiles. I need to export these lines as an SVG that uses the tag polylines rather than paths. I've used the SimpleSVG plugin but ...
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5 votes
1 answer
75 views

Read path project and load layer

How can I correctly concatenate the path of a project with a specific shapefile layer and to be able to load it; this is: QgsProject.instance().readPath("./") <---path layer = iface....
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1 vote
1 answer
68 views

Creating tracks for moving points (while discarding records without movement)

I have a csv with columns: id latitude longitude timestamp Many of the points (or "id"s) do not change "latitude"/"longitude" over time, others do. How do I filter out ...
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1 vote
0 answers
47 views

Path distance tool only downhill using ArcGIS Desktop

I'm working on a protection forest model against avalanches and rockfall processes and I have a problem with the path distance tool. I want to calculate the accumulated costs of rockfs travelling ...
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3 votes
0 answers
120 views

Are there project-specific svgPaths for QGIS?

I have a QGIS project that needs custom SVG symbols. These are all in a directory next to the myproject.qgs project file (and FWIW, everything is under version control): myproject/ .git/ ...
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  • 141
0 votes
0 answers
30 views

combine layers in qgis

I have a Shapefile that includes country divisions (Polygon). I have another Shapfile that relates to the country's roadmap (Path). I also have another Shapfile that relates to the village points (...
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1 vote
0 answers
49 views

Configure shortest path calculation with specific origin/destination points

I would like to calculate the shortest path from a point to another following a network. I'm currently using QNEAT3 for that purpose, but I can either calculate one path from two specific points or a ...
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2 votes
2 answers
107 views

Change path to help in QGIS 3.4.8 LTR

I want to use the offical help from qgis, which I can open with the F1 button. But it doesn´t work. I always get this message: I checked the Settings → Options →System, the path is right. And in the ....
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0 votes
0 answers
208 views

GRASS GIS: connecting vertices with lines along following Node Number

My goal: Convert vertices to a poly line describing the general route to have 1 line describing the center line of a river. Limitation: The whole process has to be automated. The raster can ...
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  • 1,056
3 votes
1 answer
205 views

Cheapest path through polygons and lines from point to point

I want to find the cheapest path or the least cost path from one point to another point. The points are part of a vector map and do not lie on a network. All features being part of the map have ...
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1 vote
0 answers
43 views

Point to line interpolation using heading in R [closed]

I asked this question at StackOverFlow, but got no answers, so I thought I would try here also: I can draw a spline through 10 successive points like done in this post set.seed(1) n <- 10 x <- ...
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2 votes
0 answers
514 views

Shortest path between start and end point with many other points in between

Sorry if double post, but I haven't found this specific problem in the search function. I want qgis to show me the shortest path (direct) between many points with each point only is hit once. There is ...
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5 votes
3 answers
616 views

Generate a GPX file that matches a road network from an imported drawing

I'm looking for a tool that'll help create a GPX file which will help me run a track and create "GPS Art" or "GPS Drawing". I would like to draw simple shapes, like animals or texts by following a ...
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  • 109
1 vote
1 answer
540 views

QGIS 3.4.4 PATH pointing to grass-7.4.4, but I have 7.6.0 installed thru OSGEO4W

How do I change this PATH (it says read-only and won't stick) or use the network installer to make this work correctly on Windows 10? All I want to do is use QGIS and Grass? I've honestly been ...
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  • 405
-2 votes
1 answer
1k views

Shortest path using line layer QGIS

I have a layer consisting of aprox. 20k lines What I want to do: In QGIS I want to be able to enter a start point and a end point. Preferably with street addresses and in second hand with coordinates. ...
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  • 561
2 votes
0 answers
2k views

How to add a text on a Leaflet map

Each day I need to draw a path on a map and add a text (like 4, 5 or 8 min) indicating how long it takes by car from the starting point to the destination (see the figure below). I thought it would ...
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  • 121
1 vote
1 answer
1k views

Paths layers disappear on map after saving in QGIS 3

I am quite new to GIS. I am working on a historical map with three sets of points. When I create a path between those points with the "Points to Path" tool (via Ctrl+Alt+T), it shows up nicely. ...
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0 votes
0 answers
21 views

Check if path along triangular shapefile possible

I have a problem I came across but don't know how to solve it. I have a triangular shapefile of a river with one attribute value being the water depth. The idea is to find out if fish are able to swim ...
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2 votes
1 answer
108 views

Shortest path through complex vector layer?

I have a vector layer with complex geometry with many dead ends and breaks. I want to find the shortest path that will go through all segments of that vector. Here is a sample of how my vector looks ...
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  • 21
1 vote
0 answers
92 views

Couldn't load images on html on plugin processing (Linux and Windows)

Context I develop a processing plugin for QGSI 2.18 and in design GUI with *.ui files (Qt4) I can’t load PNG images with relative path in html defined in .ui files Works with absolute path It ...
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