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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52 views

Why did not I manage to reproject layer?

I have a global land cover map, which has the following properties: Name ESACCI-LC-L4-LCCS-Map-300m-P5Y-2010-v1.6.1 Path C:\QGIS\ESACCI-LC-L4-LCCS-Map-300m-P5Y-2010-v1.6.1.tif\ESACCI-LC-L4-LCCS-...
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1answer
52 views

ArcMap MXD drops layers

I have a user who is using ArcMap 10.5.1 and several times his MXD has lost layers. This has occurred in two separate documents. He will work on a map, save the map, and close out. When he opens it ...
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41 views

QGIS Multi distance buffer units do not align with the main layer

I have a buildings shapefile of Beijing. I know the projection WGS_1984_UTM_Zone_50N WKID: 32650 Authority: EPSG So I would like to create multi distance buffer from a central point but when I do so, ...
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38 views

QGIS 3.45 Layers Panel point data labels set too far apart

The Layers Panel in v 2.18 is fine but we are now trying to go live with 3.45 and are experiencing issues with the display of some layers in the panel. Layers that are generated from an MSSQL spatial ...
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24 views

vectortiles: change style of basemap instead of data

I'm using Mapbox-GL-Leaflet bindings on Leaflet to style my vector tiles. I'd now allow the user to switch a style using Leaflet control. The easiest way would be to use LayerControl for this. Since ...
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1answer
95 views

Use expression to only keep 1 layer in the legend

When I print my project, that includes different layers, I always end up with all the layers in the legend. What I want when printing is to only show 1 layer, that always has the same name "Werken". ...
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39 views

What style has been applied to a QGIS layer?

QGIS 3.4 - I have several different saved styles which I can assign to a particular layer depending on what I wish to emphasise at the time. For example, for a Roads layer I might want to show roads ...
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26 views

GeoServer-Mviewer : point layers over surface layers

I am working on an interactive map designed under Mviewer package and using GeoServer to save symbols and layers. I have a specific issue on it: I managed to generate all layers correctly in my ...
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57 views

QGIS 3 bold Layer names?

In QGIS 2 the Option for bold Layernames was here: Go Settings->Options->Canvas & Legend and set 'Bold group names' to true and 'Bold layer names' to false. This link helps provide context. ...
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2answers
88 views

Joining Attributes from Layer Limitation in QGIS 3.2?

I want to join two txt-tables as a layer in QGIS 3.2. In earlier versions (QGIS 2.12) works to join one of the tables more times to the other table. Now in version 3.2, I can join only one time. The ...
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226 views

Selecting WMS layers from GeoServer in OpenLayers application?

I am making a weather application and I am almost there! I can show my GeoServer WMS-layers in my browser using OpenLayers 5. What I want to accomplish is that the user can switch between different ...
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233 views

How to make a QGIS 3 Layer refresh after a joined data source is updated

I have a layer of ZCTA features that is sourced from a SpatiaLite table that is joined to an Excel spreadsheet and rendered with categorized symbology. That all works fine. The join configuration is: ...
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285 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 ...
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112 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 ...
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109 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>", ...
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66 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 ...
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40 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 ...
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68 views

Reload the dimension values of a layer with OpenLayers 4

I'm looking to reload the dimension values of a layer with OpenLayers 4. My problem is when my App calls the GetCapabilities of the layer, the dimensions received are for a certain datetime, for ...
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1answer
269 views

Build Radio Button in QGIS Edit Widget Properties

My question is similar to Choosing multiple options from QGIS Check Box or Value Map for feature attribute? I have 3 categories in a row, i want to make this selection in form of radio button so that ...
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0answers
292 views

Save layers and auto save: QGIS

When I save the shapefiles and the project the shapefiles do not save so I loose a lot of work every day. The problem starts when qgis starts to delay the save of the layers after long time in edit ...
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44 views

Copy polyline from 2D to 3D?

On the right is a single row feature class polylineZ (with elev data) displayed on a new 2D map with no base map. On the left is that same feature copied (using drag from contents pane) to a new 3D ...
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63 views

Hidden layer with zoom level

I would like to display some layer according to max and min zoom levels. I tried with the method min / max zoom and resolution but without success. I specify that I use vector tiles. Here is my code:...
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1answer
174 views

OpenLayers WMTS reprojection

I have a WMTS service URL, which gives me three layers in projection - WGS84_Pseudo-Mercator (tileMatrixSet). It's very easy to add them using this guide -> https://openlayers.org/en/latest/examples/...
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358 views

Error Code -2147483647 when combining vector layers

I am trying to combine multiple vector layers in QGIS using the "merge vector layers" function from the dropdown lists (vector -> Data Management Tools -> Merge Vector Layers) All data are ...
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463 views

When draw line in QGIS 3, it is not attached to the shapefile layer, can't select or edit or make invisible

I am trying to draw a line in QGIS3. I create the appropriate Shapefile layer, click on the editing pencil, select add feature and draw the line. However the resulting line does not seem to be drawn ...
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64 views

Layers getting delinked every time project closes

I have a QGIS file with about 10 layers (shape files, web and a joined csv). Every time I close the file and open it, all layers are unlinked and the 'Handle Bad Layers' dialog appears. Needless to ...
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1answer
525 views

NetCDF layer (.nc) appears flipped and rotated in QGIS

I'm trying to import NetCDF layers with environmental information to QGIS and they appear flipped and rotated In the top-left you can see the Europe coastal line I was using, in the bottom-right the ...
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0answers
70 views

Creating population weighted spatial join of two layers with intersecting polygons using ArcGIS Desktop?

I have data where I sampled my outcome using a grid of 1-mile radii but my explanatory variables are at the census dissemination area level. I would like to average my census dissemination area-...
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771 views

Importing CSV file does not show points in QGIS?

I am currently trying to import a CSV file as a point layer (x and y coordinates are given by the csv file). But when imported, I do not see any points on the map (although the imported layer is ...
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95 views

How can I block WMTS GetCapabilities Link

I want to block to below link like WMS services. http://localhost:8080/geoserver/gwc/service/wmts?REQUEST=GetCapabilities In services, WMS method's has "GetCapabilities" and selected roles only "...
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74 views

Increasing number of presets for layers in QGIS?

Working with a map and make the schema the corresponding set of layers, save as a preset(very comfortable) but after 12 presets become unavailable menu to add preset. Can you can then add the number ...
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34 views

ApplySymbologyFromLayer not including all values in my domain

I am using a combination of ArcMap and ArcPy to stage data for sharing as a hosted Feature Service on AGOL. The data will be used in a data-driven pages type of way, where each feature will be ...
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0answers
132 views

QGIS (2.18.x) crashes after changing symbology / style of vector files

All of a sudden, I face the issue of QGIS (2.18.15, and 2.14.21 as well) crashing when: - activating layers in the map view from previously saved files. - changing the styles / symbology of vector ...
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36 views

Filter a list of layers under drop down

Is there a way to filter a list of layers under the drop down whenever selecting a layer to run a geoprocessing tool? Because I have 40 some layers displayed in the Table of Contents of ArcMap which ...
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38 views

Generate near tables from one layer to all in mxd

I am looking to create a script where user can choose a layer, then find all the layers within a set distance of it. I have set up a script to iterate through the mxd but I keep getting an error for ...
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84 views

Selection feature acting weird on queried layer in QGIS

My select feature is acting weird. I am making a plugin that downloads an WFS layer and then filter out objects based on the features. But when i try to select the points by an area, the points that ...
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572 views

Polygon doesn't appear in QGIS

I have created a polygon shapefile and the nodes can be seen in edit mode: and here is the symbology as I have tried to set it (I wanted no fill and red outline): The polygon doesn't appear on the ...
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146 views

Geonode importlayers 504 Gateway Time-out

I'm trying to upload layers to Geonode using importlayers. Some of the shapefiles were successfully uploaded. However, we've encountered some errors in other shapefiles during uploading. Below is the ...
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147 views

Selectively extracting symbology from layer file in ArcGIS?

I'd like to classify polygons within a shapefile according to one of my attribute fields, lets call it LITHOLOGY. I have another field in the same shapefile that is associated with a standardised ...
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231 views

How severe is a “10001 layer's data source has a different projection value than the data frame projection” in ArcMap?

I am currently practicing using the generate near tool with some older point shape files and would like to see if I can use it in distance analysis between the points and other shape files like lines ...
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0answers
139 views

Raster Layer Statistics Producing NAN Values From Input Raster Layer in QGIS?

I've just tried to determine the maximum value for a raster layer using Raster Layer Statistics. However when I use the tool it produces nan values for the statistics, even though the layer clearly ...
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16 views

Characteristics of layer only for overlapping area of another layer

I have got two layers, one with the land cover of Zimbabwe and another with the administrative divisions. I need to isolate a district and identify its land cover. I managed to cut out the district I ...
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212 views

Creating new layer out of shapefile after selecting attributes using QGIS?

I'm currently writing my Thesis about QGIS where it is my task to create a map of Austrias motorways (roads with the type A and B3**). I am working with a shapefile where all roads are so I selected ...
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267 views

World WFS layers

Does anybody know if there is a WFS that contains layers for the whole world, like roads, lakes, rivers? I am from Argentina and here we have a site that shows all available IDEs in this country (www....
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156 views

Leaflet .js reference layers as variables

I am advised to reference my layers as variables rather than as functions, so I can order the layers using .bringtofront. I have tried several combinations of var skull = L.geoJSON(fatalities)etc.) ...
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759 views

How to Create Random Points Within a Polygon (Vector Layer)

I have a vector layer that covers a few acres of land, with the buildings cut out (so essentially just the soil in the area). I want to generate points within this defined area. Later, I will use my ...
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0answers
107 views

QGIS Handle Bad Layers Window Size

I'm using QGIS 2.18.9. Using the Handle Bad Layers Window, I find that I can't change the window size or the size of the individual columns. Sometimes I have a long path and/or file name and see only ...
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117 views

Saving Split Layer segments to separate Shape files in QGIS?

I might be missing something obvious here. Using the Split Features tool I've split a line feature into 2 parts, one of which is now showing as being selected (yellow highlight). How do I save ...
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20 views

Layers move when using specific CRS

Using Google Satellite for a basemap and polygons (KML) drawn from Google Earth to create additional polygons using landscape features present on Google Earth and Google Basemap, within the original ...
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59 views

Initialize Geoexplorer with layers

I have Geoexplorer war file deployed in Tomcat 7 webapps folder and I run it from localhost:8080/geoexplorer and load the layers and I visualize them correctly but when I close the browser and open ...