Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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.

0
votes
1answer
19 views

Leaflet omnivore KML / CSV import multiple layers [on hold]

I want to import .kml / .csv data to a Leaflet map with the omnivore plugin. This is my code: <!DOCTYPE html> <html> <head> <title>Meine Karte</title> <meta ...
1
vote
0answers
46 views

Deleting layers in QGIS?

I am having issues with my layers. I am using QGIS v3.2, and have been stuck on this issue for a while now. I using OGA License blocks to plot certain points at sea. These license blocks follow a ...
0
votes
0answers
24 views

Editing geometry of multiple layers simultaneously?

I have several line layers (route, pipes, cables) that share the same geometry and would like to edit them simultaneously. Is there a way to easily snap the geometry of the pipes and cables layers ...
0
votes
0answers
8 views

Unable to view previously published AGOL Map Image Layer

It's been a while since I've worked with AGOl and map image layers. I'm in the process of republishing several Map Image Layers to a new server. The issue I've been having involves not being able to ...
2
votes
2answers
40 views

How to zoom to a specific loaded layer

I'm trying to zoom to a layer that was loaded with a script, just like manually would be done by right clicking the layer and pressing the "Zoom to Layer" button. I've tried several ways and the ...
-3
votes
2answers
31 views

Layers missing at project start-up

Does anyone know what is the problem?
2
votes
0answers
64 views

QGIS - Label Rectangle/Buffer Overlapping Layer Above

When I apply a buffer or rectangle to my labels they show through the overlying layers. Is there any way to avoid this, i.e. arrange the label so it lies underneath the layers above? I'm assuming the ...
0
votes
1answer
23 views

What do the heatmap layer settings numbers in mapbox stands for?

I have layer settings of mapbox heatmap as follows from this official site: What do these numbers stand for (the first, the second, the third, the fourth number) and what are their limitations please?...
0
votes
0answers
11 views

QGIS 3.0 input layers for Python script [duplicate]

I have just updated from QGIS 2.18 to QGIS 3 (Madeira) and I want to run a self-written Python script. My Python script has two input-layers which I usually imported with the processing.GetObject('...
1
vote
2answers
36 views

Polygons from different layers

How to create a map with polygons from all the different layers? I'm using ArcGIS Pro and it does not have Overlay analysis tool.
3
votes
1answer
27 views

Republishing AGS Service Doesn't Update Web Map in AGOL

I created a web map in my AGOL content folder after publishing from ArcMap as a Portal feature service. I created a web map in AGOL by bringing in the service URL. I have three group layers with ...
2
votes
1answer
19 views

Selecting points within polygon using ArcGIS Desktop?

I am using ArcGIS Desktop for the first time in many years. I have a postal sector layer under a series of merged drive time boundaries. How do I select just those postal sectors which fit within ...
0
votes
0answers
41 views

Geocoding - Data layer empty even though it's taken directly from a full table?

I added one of my tables to a map several times and each time, it gives me the message "This layer is empty. Add data to start working." It's a layer that I previously had on there with data geocoded ...
0
votes
1answer
33 views

Split layers by field QGIS version 3.2.3 [duplicate]

I want to split a vector layer based on values in a specific field. In older versions I could use the plugins 'LayersbyField' or 'Split Vector Layer', but both seem not to be available anymore in ...
0
votes
1answer
27 views

RuntimeError: Object: Error in executing tool when running Union

I have a list of a 2 layers (nfhl_fld_haz_features, prelim_fld_haz_features) and a feature class (master_merge) that I want to perform a union on: wkflw2_union = arcpy.Union_analysis([master_merge, ...
1
vote
1answer
17 views

Displaying WMS sublayers on ArcGIS JavaScript

I want to display layers of a WMS service containing sublayers on ArcGIS using JavaScript 3. No layers appear, but the WMSLayer is marked as loaded. the WMS is described here: data shom WMS My code ...
0
votes
0answers
31 views

Why 2 layers in the same projection do not overlap in QGIS? [duplicate]

Can someone please explain why my project CRS which is in PRS92 (EPSG:3124), and the layers are in the same projection but do not overlap. But when I change one of my layers in WGS84, the values are ...
0
votes
0answers
18 views

How is it possible to transfer the symbology of the layers defined in ArcMap to ArcGIS Explorer?

I would like to create an offline map in ArcGIS Explorer as it is strong for such a reason but I have just started to get to know this application. I have added all the layers (.lyr) from ArcMap in ...
0
votes
1answer
15 views

map overlay diagram origin

I am trying to determine the origin of the popular map overlay diagram that shows a GIS as a stack of map layers connected by four vertical lines representing the geo referencing system. Would be ...
1
vote
1answer
44 views

Get child layers from a layer group

I'm using a geoserver and openlayers3 with html. I cannot find the way to obtain the child layers from a layer group. I have a layer group, and I show it in html perfectly, but what I want is to be ...
-1
votes
1answer
32 views

Create an offline version of layers in ESRI WebGIS? [closed]

I am new with Online/WebGIS concept from ESRI and mostly worked on ArcMap 10.3 until now. We have recently created a WebGIS for one of our clients with a lot of vector layers which is pretty big data. ...
2
votes
1answer
90 views

Migration plugin from QGIS 2 to QGIS 3: list layers

I am trying to migrate a plugin from QGIS 2 to QGIS 3. This function doesn't work with QGIS 3 : def getLayersByKeyWord(keyword): #retourne une liste de layer res=[] layerMap = ...
0
votes
0answers
31 views

Updating some layer sources in MXDs with ArcPy?

I'm trying to update some layer sources in a few hundred mxds with Python. We are standing up a reference SDE but not all the data is migrating to it. I'm trying to automate the process with Python ...
0
votes
1answer
45 views

Openlayers only Popup for Marker but NOT for Polygon [duplicate]

I only want popups for the layer of the markers (icon), but not for the layer of the polygons (WFS). var defaultStyle_polygon_1 = new ol.style.Style({ fill: new ol.style.Fill({ ...
0
votes
0answers
10 views

How to stop first grouplayer expand when starting qgis

Can i stop QGis to open first grouplayer when i load new project or starting QGis ?? In the project file qgs all layers are expanded=0 but stil it open the first grouplayer.
1
vote
3answers
129 views

Copy/Paste Layer with Attribute table to new Layer using ArcGIS Pro?

When I copy features from one layer in ArcGIS Pro to a blank layer, the polygons are transferred, but the attribute table behind those features is not transferred. To give a specific example, I ...
0
votes
1answer
24 views

Display legend of WMS in layers panel in full extent

When loading a WMS layer from e.g. http://www.wms.nrw.de/geobasis/wms_nw_dgk5 the legend of the layer with larger desciptions is displayed in the layer panel not to its full extent (see picture). When ...
-2
votes
1answer
36 views

What Kind of Layer to Add Building Info? [closed]

I am new to QGIS (two days ago) and have been given a task to identify buildings, store info on them (building year, color, road type) in a layer and then export the info in a CSV file. I have fuddled ...
0
votes
1answer
37 views

Listing layers from .mxd file using ArcPy for ArcGIS Pro?

I am looking for a way to access a .mxd file's layer names and data sources. In ArcGIS Desktop, I could do: def print_layer_info(mxd_path): print(mxd_path + ":") mxd = arcpy.mapping....
3
votes
1answer
42 views

Automating removal of credits (citations) assigned to layer using ArcPy?

I have been given a map document with ~130 feature classes which have been symbolized, etc. In the layer properties, on the General Tab, credits have been written in. When published to ArcGIS Online ...
0
votes
0answers
27 views

OSM original and exported polygons don't match

I'm having trouble to understand why polygons from OSM after being both copied and exported to a different layer don't cover their originals. Blue are the new one, with black outline - the original ...
1
vote
1answer
20 views

Keep only endpoints of line with Extract Vertices

Using QGIS 3.2, I can use the "Extract Vertices" tool to generate a layer of vertices for each line segment in my data. My data is split into line segments of between 400-500m in length (using the v....
0
votes
1answer
27 views

Extracting non-duplicate features between layers in ArcGIS Desktop?

Just making an example: Layer B has 5 points. There's a layer(A) contains 10 points and 5 of which duplicate(totoally same and overlap) with layer B. How to output the other 5 non-duplicate points ...
1
vote
1answer
54 views

Different SVG markers for different attributes

I am using QGIS 3.0. I want to use different angle arc SVG markers depending on the data in the attribute table. For example, some points require a 60-degree marker, other a 35-degree marker etc. to ...
0
votes
1answer
50 views

Geoserver generated Geopackage not displaying in maps

We have a geoserver instance with Geotiff layers created as layers and mosaics. When I query the geoserver to getMap as a png or image it displays the correct map data. When I change the output ...
0
votes
1answer
67 views

Disappearing polygons when zooming in QGIS 3.0

I am using QGIS 3.0 and loaded a polygon layer from a shapefile containing more than 300,000 polygons. When zooming in some polygons are not drawn (not the entire layer).
0
votes
0answers
23 views

ArcGIS crashes when running arcpy.ApplySymbologyFromLayer

I'm one of the developers working on pyBRAT. We're working on making the tool automatically generate symbolized layers for the inputs. Unfortunately, we've run into a rare, but the repeatable problem ...
0
votes
1answer
46 views

Show/hide layers (not sublayers) via selector in legend - carto.js v4

I am trying to build a layer selector using carts.js.v4, similar to the one provided in Carto Builder. Examples of layer selectors that I have found utilize sublayers and my maps are using separate ...
1
vote
1answer
19 views

Creating 2 symbology in the same layer on Mapinfo [closed]

New to MapInfo, I would like to create a High voltage layer with two different attributes (11 and 6.6) representing by two different colours on MapInfo. How can I do that?
1
vote
0answers
15 views

Changing URI source of WMS Raster Layer in place PyQGIS

In my Qgis Plugin, I manage a set of WMS layers that are secured by Api key. As I develop this plugin for differents clients who have different Api Key, I need to set the right Key when a specific ...
2
votes
3answers
86 views

Format .csv or .txt file so that the following stops happening?

I have a large dataset compiled of point data. Previously, this data was contained in 3 different files that all were successfully made into layers on QGIS, however I just combined them into one large ...
1
vote
0answers
63 views

Getting Bonn 3.2.2 registry error?

This is the error I am getting in QGIS Bonn 3.2.2: Traceback (most recent call last): File "/usr/lib/python3.6/code.py", line 91, in runcode exec(code, self.locals) File "<input>", ...
0
votes
1answer
179 views

How do you get a color topographic map in Google Earth using the altitude provided by the 3D models

Is there any way to get an accurate, high definition, color topographical map as an overlay in Google Earth? It would be somewhat similar to this image captured by NASA of the surface of the moon ...
1
vote
1answer
53 views

QGIS: Is it possible to merge two stacked raster layers keeping color rendering and transparency?

Extremely new to QGIS and was hoping to merge 2 layers and maintain an "overlay" keeping layer transparency and color rendering? I seem to loose the top layers layer properties when merging and it ...
0
votes
0answers
8 views

Add rasterlayer with defined symbology in ArcPy

I am trying to add a raster layer in ArcPy with arcpy.mapping.Layer(Raster). By default, the layer is added with "Stretched" symbology. However, for further use of the raster, I need "Unique Values" ...
0
votes
0answers
80 views

PyQGIS 3: How to save layer to a file

I'm using pyqgis to export a layer to an existing database, say GeoPackage. What I want to do is try to replicate what QGIS does if you right click on a layer -> "Export" -> "Save Features As...", ...
0
votes
0answers
25 views

Size bands now showing correctly in QGIS 3

I'm trying to rank some points in QGIS 3 by size. In the map, they display correctly, but in the layer properties and in the legend the symbols do not display. Is this a bug? Does anybody have any ...
0
votes
1answer
39 views

QGIS - Transfer feature selection with new attributes to PostGIS

I have three shapefiles which represent a conduit network with valves and hydrants. The pipe grid consists of line features in a shapefile and the valves and hydrant each are a point layer in a ...
1
vote
0answers
25 views

Show layer results in canvas for QGIS 3.0.2?

For both vector and raster layers, previously in QGIS 2 there was an option asking whether you want layers to be shown in the canvas ("show result in canvas"). Now in QGIS 3.0.2 "Girona" this option ...
1
vote
0answers
14 views

Setting COLORRANGE for rasters with variable minimum and maximum value in MapServer?

I have a series of rasters picturing the same phenomenon/product eg. the accumulated precipitation and I use the same mapfile for all. Naturally the minimum is always zero but maximum is variable from ...