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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56 views

Can't create polygon in an editable layer in ArcMap 10.3

There is an editable polygon layer in ArcGIS 10.3 I can edit already existing polygons but I can't create new ones. The layer does not appear in the "Create Features" list. I have another polyline ...
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13 views

Change the Shortest Path graph to shapefile

Can I use the shortest path graph from the https://docs.qgis.org/2.6/en/docs/pyqgis_developer_cookbook/network_analysis.html example and make shapefile or a layer? Or is necessary to modify the ...
1
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1answer
23 views

Proportional circles as function of value NOT range

I have two point layers, each containing one column of values. When using the graduated style in layer properties, the size of the points is relative to the total range of values within that layer . ...
1
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0answers
15 views

Leaflet map with 'query of features' on mouseover and multiple layers

I have produced two working Leaflet maps that in total contain the features that I need for my application. However, I cannot solve how to have multiple 'overlay' layers that can be queried with ...
1
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0answers
16 views

How can I stop crashes when opening layer properties after adding SVG paths?

I am running the most recent version of QGIS, 2.14.3. I recently added several folders to the locations of of SVG files, but I opened the Style Manager and removed them when the crashes started. ...
1
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2answers
39 views

Running Python script that includes ArcPy functions?

I have to export about 250 layers in one mxd File to maps in ArcGIS 10. I found a script on this site at Exporting each layer in map to separate image using ArcPy?: mxd = arcpy.mapping.MapDocument(...
2
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1answer
38 views

How to ignore “handle bad layers” in QGIS?

I have a QGIS (2.14.3-Essen) project that I use both at work and at home. I keep all but two layers with the project. The two remaining layers are very large - a DEM and hillshade totaling more than ...
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0answers
9 views

Code in jscript for application to show drop down list; values of list to be get by the dynamic layer service?…zoom to the selected value [on hold]

I am developing application in jscript. i want that from a dynamic layer the value of different zone it will collect and show in dropdown list and will click on the value(any) it zoom to that zone
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0answers
15 views

Maximum likelihood classification- changing class colour with every layer

I created a signature file, where I defined 4 different classes, which I named and coloured specifically. When I try to use the maximum likelihood classification tool for other layers, the classes ...
1
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1answer
25 views

Can I save the symbology of all the layers in my mxd so that I can quickly revert back to a certain “look”

I am using ArcMap 10.2 and would like to set multiple variations of the layers symbologies. In autocad this would be the equivalent of setting the layer state.
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1answer
15 views

Arcpy MakeFeatureLayer_management issue using SQL condition

I have a lines shapefile. I made a small code to select some of its elements and turn them into a standalone layer. The code is like this: arcpy.env.workspace = r"C:\MyDirectory\Mygdb.gdb" network = ...
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0answers
12 views

Lava simulations, layers totaled [closed]

I have a number of lava flow simulations. Many overlap and so cannot be seen clearly. I am hoping to produce a layer that includes all the simulations and indicates the areas of overlapping lava flow ...
1
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1answer
22 views

lyr replaceDataSource not reflecting

The changes I made to the MXD with ArcPy is not reflecting the changes in ArcMap. arcpy.env.workspace= "C:\Users\UserID\Desktop" mxdlocation=os.path.join(arcpy.env.workspace,mxdname) mxdloc = ...
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0answers
15 views

display buffer turf only when i click on a layer [closed]

I want to display turf buffer only when I click on a layer var pt = { type: 'Feature', geometry: { type: 'Point', coordinates: [lat, lng] }, properties: {} }; var unit = 'miles' var ...
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1answer
34 views

How do I make two layers of point data align perfectly?

I have two point data sets that represent the same business locations, however, the points are slightly off for one of the two layers. As in one layers points are in the correct position over the ...
1
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1answer
21 views

Can I split my data based on the polygons in a different layer?

Carto has a built-in dataset with polygon data for UK administrative regions. I have put another layer over this, containing several thousand data points (postcodes). Is there an easy way to find out ...
1
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2answers
56 views

Mapbox GLJS - group layers

I'm trying to build an interactive map, without any knowledge in javascript, and i found myself a bit lost in this large world. I've already designed my style in mapbox studio. And now, trying to ...
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2answers
25 views

How to Close all Layers but keep Tables on MapInfo using MapBasic

I'd like to know how to close all the layers on MapInfo but keep the tables open using MapBasic code. The idea is to be able to keep the tables open so that I can create multiple different maps using ...
4
votes
1answer
86 views

How to load multiple vector layers into QGIS' map canvas using python scripting?

I am trying to write a standalone script in python to create a QGIS map canvas. The vector layers I am attempting to load are Shapefiles. Currently, I am able to load each vector layer, add them to ...
1
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2answers
36 views

Leaflet, changing base map CRS

So i am using leaflet in order to create my project, which is a world map that certain layers would be add on top of it. I am wondering whether I should change the CRS property of the map object, ...
1
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0answers
28 views

Problem in layer overlapping (qgis)

I want to plot gps pts on qgis (version 2.14.1). I have added the vector layer of SE Asian countries, and added the delimited text layer of my gps pts which included species name, lat and lon. ...
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0answers
10 views

Loop Quality layers of Modis in R

I want to parse quality layers of Modis MOD13Q1 in R. I´m using a code from another question here! and it works fine, but i want to loop it for 300 files. I grouped them in stack of rasters and tried ...
2
votes
1answer
35 views

Iterate through layers of an MXD

I found this, under the topic How to iterate through layers of an MXD? answered by Midavalo I wanto to know if its possible to change something in the second line, to iterate through all data frames ...
0
votes
1answer
24 views

Showing only 1 layer at a time in CartoDB

Is there a way in the free CartoDB to set the layer selector so that you can only select 1 layer at a time? When one layer is selected, deselect all other layers.
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0answers
30 views

Add qlr file in QGIS- problem

I work with a polyline layer: and the layer located in "G:\desktop\qgis\lyr". After i save the layer in qlr file and saved it in "G:\desktop\qgis\lyr", i try to load the qlr file with "add from ...
0
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1answer
48 views

Grouping layers in Table of Contents in ArcGIS for Desktop?

I'm trying to group layers in the table of content so that I can expand or collapse them as needed. Not sure how. I'm using ArcGIS 10.3 for Desktop.
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16 views

Generating detailed layer properties report [duplicate]

Would anyone advise me how to generate detailed layer information report in ArcGIS 10.3. I mean the details described by layer properties window for a layer like Source, Display, Definition Query, ...
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0answers
10 views

Custom map : Layers, sublayers and public transport directions

My objective is to create a custom map for public transport with several layers in it e.g: Under a layer named 'Leisure', I can have several bus/train/boat routes(multiple steps may be involved) I am ...
0
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0answers
13 views

GeoServer: Composite and blending for specific layer in WMS call

I use the destination-in vendor option to use a polygon layer like a mask, so that only some parts of a raster layer are shown. The sld is defined for my polygon layer. In my WMS call a specify both ...
3
votes
1answer
71 views

ArcMap can't switch layers order

I have 5 different layers. I would like to change the order they are drawn. I read that (and I also used to) simply select and drag the layer from in the position I want. Nevertheless, now I am trying ...
0
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0answers
27 views

Files added using *.qlr result in bad layer after save and reload

I'm converting CAD to Shape (separate point, line and area shapes per *.dwg in a folder). In the process I parse the shape info to a donor *.qlr (to the same folder). The qlr is a donor file with ...
0
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1answer
79 views

Coordinates from Excel list

I'd like to import Coordinates from an Excel list, for this reason I saved the excel sheet as an .csv ant tried to import it via "Layer --> Add delimited text Layer". The points are imported, but with ...
3
votes
0answers
32 views

PyQGIS select layer by original table name

As far as I see, on QgsMapLayerRegistry.instance() there is a method to select layers: mapLayersByName(Qstring) and the method mapLayer(QString) respectively, wich accesses a layer by its id. ...
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0answers
12 views

Setting “current layer” in Openlayers 3

I have an ol.Map in a layer called TilesLayer, displaying the OSM tiles and a MarkersLayer on top of that displaying draggable markers. Clicking on TilesLayer causes a new marker to show in ...
0
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2answers
44 views

Removing duplicated layers using ArcPy?

I work with ArcGIS 10.3.1. I my map i have 200 layers. some of them repeat several times. Is it possible with python code to remove all duplicated layers from table of content, that have the same ...
0
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0answers
13 views

Two layers of the same region with the same coordinate system does not lay in the same place! [duplicate]

I know that my problem seems to be frequent but I couldn't find any good till answer. I have two layers for the same place (area and roads) in my ArcGIS, both of them has the same coordinate system ...
1
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1answer
32 views

how to extract OSM data to as many layers as possible in DXF( or multiple DXF file) as path for illustrator use?

So i am just touching QGIS, mainly to explorer way to use map data for my animation. Here's my first try to make it clear to understand what I am aiming for: https://www.youtube.com/watch?v=jhC-C5f-...
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1answer
59 views

How do I access graphic information from an element in an ArcGISDynamicMapServiceLayer? (Flex)

I've got a Flex application that shows pipeline data on a touchscreen map (for an exhibit). The spec mandates that tapping an element on the map (such as a power plant or substation) will trigger a ...
0
votes
1answer
21 views

Mapbox Opacity Example Touchscreens

In Mapbox, this example works on a PC but not on a touchscreen Android/iPhone/iPad https://www.mapbox.com/mapbox.js/example/v1.0.0/opacity/ Is there a simple change to the code below to make it work ...
2
votes
1answer
20 views

Setting (above/under) priority order of layer in leaflet

When I add a layer in leaflet it stays automatically above all layers I want layers to be ordered wich one stays above the other in way that last added layer will not stays above and hide the other ...
0
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0answers
16 views

Regroup layers in Configurable Map Viewer (CMV)

Please, how can I group layers by topic in CMV and change operationalLayer = [ ] array automatically into Viewer.js: I want to regroup feature layers by topic. I failed to create an other ...
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votes
1answer
32 views

Insert layer using Arcpy- Code error [closed]

I'm trying to add "roads" layer to all the maps that do not have this layer in the table of content, by using this code: import arcpy,os,sys,fnmatch from arcpy import env env.workspace = r"G:\...
1
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2answers
58 views

How to insert layer excluding MXD files using arcpy?

I'm working on 24 MXD files. Several maps include "roads" layer in them, the other maps don't have this layer. I'm trying to add "roads" layer to all the maps that do not have this layer by using this ...
4
votes
0answers
65 views

Connect data from two different layers

I'm trying to connect data from two different layers to combine them in one new layer and continue working with them. Let me explain that a bit more detailed: The first layer contains data (and ...
4
votes
1answer
89 views

QGIS: Batch export multiple layers to DXF

I have only had limited experience with QGIS. What i have: I currently have many different layers (water mains, sewer mains, drainage etc.). These layers are TAB files with attributed data. What i ...
1
vote
1answer
25 views

How to work with Baccini et al.'s biomass map from ArcGIS?

Baccini et al. (2012) has produced one of the best biomass maps available for the world. One can find the map from one of ArcGIS repositories here. I downloaded the .pkinfo file for that map but I ...
3
votes
1answer
20 views

Point feature changes over time?

QGIS strategy for denoting point feature changes over time? My project file has a shape file layer (point symbols) geolocating 50 historic street name mosaics embedded in concrete sidewalks ...
1
vote
1answer
43 views

Adding infowindow to cartodb map using api

I think this should be easy, but I just can't work it out. I am building a multi-layer map using cartodb (own opensource server). Layers display well. but I have two problems. 1) the layer select ...
0
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0answers
16 views

Loading Data into Vector Layer Polygon

My first layer is a map. My second layer consists of points: bars with GPS coordinates (.cvs file). My third layer consists polygons, creating different area's for the bars. So, the points of the ...
3
votes
1answer
71 views

Application of preset properties QGIS layer to another imported shp

In QGIS I import the same shp files during days (continuously fieldwork). For processing in QGIS I set the properties of layer (imported shp)- Style, Labels, Actions, Display. In these days I have to ...