Questions tagged [layers]

A layer is a collection of information. It contains specific elements of a gis in a specific presentation method (e.g raster or vector layer). Layers can be edited separately in order to create individual toppics for a map.

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26 views

Why is the background of my Geoserver WMS+Leaflet example grey instead of transparent?

I am trying to add a WMS layer to my leaflet map. When I add the layer it shows up but the the outside of the layer is grey instead of a world map. This is my code: <!DOCTYPE html --> <...
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18 views

Applying graduated symbol renderer only on some features using PyQGIS

I have set up a graduate symbol renderer (QGIS cookbook - Graduated Symbol Renderer), and I am now trying to make it conditionally applied to some features only, depending on one (or more) attributes. ...
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24 views

Showing same layer multiple times using ArcMap

I am using ArcMap. I am working with a layer for which I have two separate values that I want to display using symbology. Ideally, I would like to duplicate the layer and place them side by side, ...
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23 views

WFS request using layer extent or spatial query QGIS3

I'm trying to request features from wfs-service by using a virtual layer. Is it possible to load features by using a layer extent from a virtual layer? I know how to add dimension for a request with ...
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15 views

Export layer with layer package [closed]

this way export layer for importig layer(with complete detail like symbol and founts) in Arcmap,But I want to use this export for using in QGIS(gis.stackexchange.com/questions/64309/…) in attach link ...
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1answer
33 views

Exporting layer from ArcMap with detail [duplicate]

How can I Export layer from ArcMap with complete detail contain picture of symbol? Export by click right on layer and export data was tested. I actually just want to Export layer with symbols.
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1answer
18 views

Sorting layer created by Create Layer from Selected Features using ArcMap

I am using ArcGIS Desktop 10.5.1 Standard / Windows 10 Pro. I am selecting features with a common attribute and then using the Create Layer from Selected Features method to create a new layer to work ...
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1answer
29 views

Select by Location multiple layers using ArcPy

Using ArcMap 10.3, I would like to Select By Location multiple layers using ArcPy. The error message states line 7 is not correct. I can't find the error though. "Water_Body_Boundary" is my source ...
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1answer
32 views

Building a path from points by distance

I have layer of points of which I need to build lines. Standart Points to path function doesn't suit me. I have data on time, but it does not reflect the order of connection that I need. I need to ...
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29 views

QGIS SCP pulgin layer output

I use the plugin regularly and have already used every function. But I have often noticed that the output layers are not always intuitively understandable. I googled on the topic and found no ...
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25 views

Filter features by attributes from another layer [duplicate]

I already asked this question here, but realized that my description was too meager for people to help me. Therefore, I will try to describe the problem here in more detail. Data: layer 1 (...
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21 views

How to develop responsive layer container in Leaflet?

I'm using leaflet.js to develop a drawing layer tool with the full-page map. Users will draw a group of layers to describe an industrial product's parts. The leaflet map and its layers should be fit ...
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1answer
66 views

Filter by attribute names from another layer in QGIS

I have some difficulties with a task I have. Data: layer 1 (tmc_segments), layer 2(regional_roads(earth)). Layer one contains simplified geometry of the road network (just simple lines with data ...
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30 views

How to create a 3D Map with multiple layers?

This is a Generic question, if it is not applicable please delete. I was wondering if it was possible to make a 3D map (such as seen below) on QGIS version 3.10.0 The image is basically showing ...
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38 views

Editable text in Illustrator

I'm new to QGIS and Maperitive. I wondered if there was a way to export all road /street names for a particular area as editable text in Illustrator (SVG)? I have tried using Maperitive but for some ...
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1answer
184 views

Turning on/off ALL selected layers in QGIS?

When I select few layers in the QGIS 3 Layers Panel and press Space - only one of the selected layers is turned off/on. I want to turn them all. How to do that?
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1answer
69 views

Specify an alternative URL for a “tileLayer” to use in Leaflet?

Let's say I have a: var myTileLayer = L.tileLayer('https://{s}.tile.SomeMapServer.com/{z}/{x}/{y}.png'); and if some tiles fail to load, I want them to be loaded from 'https://{s}.tile....
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1answer
31 views

Rename layer result from PyQGIS QgsProcessing.TEMPORARY_OUTPUT to something else

I have a PyQGIS script that I exported from a QGIS process model. I have set output layer names that make sense in the model but when I export and run the model in PyQGIS it outputs the temporary ...
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1answer
40 views

Sort and create attribute field to the shapefile

I am creating a shapefile layer and adding an 'Area' attribute field using the following script: # Create shapefile layer drv = ogr.GetDriverByName("ESRI Shapefile") dst_ds = drv.CreateDataSource(...
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2answers
38 views

RAT and cell values in R's raster-objects

I really struggle to understand some basic concepts in the structure of how R's raster-objects save values. Namely the RasterLayer, the RasterBrick and the RasterStack. I understand that the values (...
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0answers
18 views

Layers and styles for all different geometric objects

I want to change the graphical style of my geoserver map. There are like 400 different geometric objects and 20 different zoom-levels. Do I have to create 8000 (400x20) different layers/styles and ...
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2answers
34 views

Change Drawing Order with Python in ArcGIS Pro? [closed]

Working on a Python script that does some routine table management of a couple of feature classes. In one step I define a table join and then export that to a GDB. When that runs, it will add it to ...
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2answers
67 views

Moving layer across map canvas

I would like to move my created layer across the map canvas. I found some solution here. And next tried to achieve something similar in QGIS 3.10. Unfortunately, this step couldn't be achieved, as I ...
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24 views

Iteration between different polygons in one layer

I am trying to create a code that will calculte the mean NDVI value for each polygon,the standard deviation , then std/2 and then will classify the pixels inside each polygon according to the next ...
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0answers
41 views

To Iterate through all layers and all attributes for each layer

I am working in the Python console in QGIS 3.10. I want to iterate through all layers and for each layer iterate through all attributes and set them all to 'Hidden'. I want to do this in ...
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1answer
66 views

Symbol's size huge in the layer tree legend in QGIS

When I use Type of symbol -> Generator of Geometry of a vector layer that the symbol has a huge size in the layer tree legend of a QGIS projet. I use this formula wedge_buffer($geometry, "fyd" , "...
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0answers
31 views

Download OSM tiles footprints as a layer

Is it possible to download a shape layer (or similar) with the OSM tile bounds from somewhere? Not the actual tiles, but only their polygon representations (for example-some area have about n tiles in ...
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34 views

Select and Delete from Multiple Layers at once in QGIS

I have imported a CAD drawing into QGIS as a GPK. It has imported everything that was in CAD. Now I want to delete features that I don't need. See below: I know how to turn each layer on and then ...
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1answer
118 views

Seeking tutorial to split group of layers in QGIS

I am trying to split a group of layers, but I can't find anything online about it. I have a layer with a paper clip on it (in the sidebar). I can't figure out how to break it. Could you link me to a ...
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2answers
85 views

Populate field in one layer with corresponding value from another layer

I have 2 existing vector layers: 1 point, 1 polygon. In almost all cases the points overlap a polygon. The point layer has multiple features (1,000+) with an existing field which I need to ...
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1answer
48 views

arcpy.Mapping.UpdateLayer not working

The layer to be updated (ul) does not get applied with the style from the source layer (sl) and the code executes without throwing any error. import os import csv import arcpy #Set home geodatabase. ...
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33 views

Converting QGIS vector layer to single track that can be used in Garmin Basecamp

I would like to export a vector layer from QGIS into a GPX file consisting just of a single track. I can export the layer, which in QGIS shows a cycle route, i.e. a single line, in GPX format. I think ...
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48 views

Plot different layers from RasterStack object in R

Is there any way to automatically plot each layer from a RasterStack in R. I'm a little bit lost in the vast amount of options. There is tmap, mapview and also leaflet... For example if you have a ...
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1answer
23 views

arcpy.MakeFeatureLayer_management function not creating feature layer in ArcGIS Pro

I'm attempting to run a simple tool script in ArcGIS Pro 2.4 that creates a feature layer from an existing layer. The script creates the feature layer just fine if running the script in PyCharm, as ...
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75 views

'Layer is not valid' error in QGIS for delimited text layer

I am trying to add a CSV that contains lat/long coordinates as a layer to a project in QGIS but I keep getting a 'layer is not valid' error. Here is a picture of the data preview before I click Add: ...
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1answer
50 views

Reset particular layer in Google Earth Engine

I have two layers in my GEE and I want to reset one of them base on my selector. I have the code as following: Map.layers().reset(['UHI']); Map.addLayer(UHIAdded, {opacity: 0.5}, 'layer1'); Map....
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2answers
48 views

PyQGIS: hide a layers-group by uncheking it in the legend [duplicate]

I have a group of layers that contain itself other groups (as shown in picture). I need to hide one group by uncheking the checkbox in the legend. is there any way to do it programatically using ...
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0answers
13 views

Problem extracting sub-layers from certain geospatial PDFs

I have been extracting certain data from geospatial PDFs using Bluebeam Revu but have run into some issues with a couple specific PDFs. For the sake of this question consider the 2019 Aspen/Sopris ...
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1answer
48 views

Spatial reference data from all layers in MXD

I have a MXD with many group which has many layers. I have tried to get coordinate system data from all layers with the code from Iterating through layers in mxd and describing coordinate system. So ...
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2answers
64 views

Dissolving layer with two or more fields in QGIS 3

I want to dissolve the layer based on two or more fields through "Processing modeler". How to set and where to set those fields? When I use "Dissolve" tool separately I can choose fields that I want, ...
2
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0answers
52 views

QGIS layer blending: keep polygon outline un-blended?

Version 3.8.3. QGIS' layer blending is a spectacular feature that I use often. For example, when displaying a polygon layer over a satellite image background I'll set the polygon layer blend mode = "...
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1answer
40 views

Ordering FeatureGroups

I'm using Leaflet right now and I have issues on ordering a list of FeatureGroups. Each feature group is either an imageOverlay or a list of Features I tried using bringToFront / bringToBack and it's ...
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1answer
130 views

OpenLayers - remove all layers of map apart from base map layer?

What i need is to delete all layers from the map without removing the base one (in my case OSM) Here is some code new Map({ layers: [ new TileLayer({ source: new OSM() }) // <== ...
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1answer
120 views

ArcPy - List layers and list fields in one code

I am trying to combine ListDataframes, ListLayers and ListFields in one ArcPy code. I can do it one by one (first list layers in one code, and then list fields in second code), but I am trying to do ...
3
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1answer
33 views

Road Names - Multiple Lines and Single Lines [closed]

Fairly new to the GIS world. I have been creating maps for my employer using OS Vector map data. Up until recently everything has been going smoothly - I only use vector based data so that I can ...
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2answers
56 views

Adding label to OpenStreetMap

I've eaten at this amazing Brazilian BBQ restaurant in Calgary and I noticed its not on OpenStreetMap (OSM). How do I add a label to OSM? I am currently in the process of learning how to use QGIS ...
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27 views

Open QGIS Project in both Linux/Windows

My company has workers that use Windows and Linux to manage a QGIS project. However, when we use the same project created in different operate systems the layers lose file paths. Is there ...
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0answers
67 views

Determining if layer is visible using PyQGIS

I am working on a plugin 'Stripchartdrawer' current commit https://github.com/sickel/qgisstripchart/tree/ba3afd7184e33331b5af38111e91dbb9b6a2d1c0. One of the features in this plugin is to be able to ...
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1answer
49 views

QGIS 3.4. Saving Layer Status (ON/OFF) for printing different Layouts

if i have a project with a lot layers (20-30) and i want to print different map layouts is there a possibility to save different status of which layer is on or off? So for example: Map Layout 1: ...
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1answer
55 views

Designing small letters under words in QGIS

I want to design small letters under words in QGIS when I designed the labels (attach picture). Is there any way to do it?

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