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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21 views

Switching out layers but keeping the order the same (see figure) with ArcMap and Arcpy

I need to update the table of contents for a given .mxd by keeping a certain order but switching out the contents. I can bring in the new feature classes as map layers, and delete the old map layers ...
3
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1answer
32 views

Using Feature Dataset with ReplaceDataSource gives ValueError: Layer: Unexpected error?

I'm attempting to replace the data source of a unsourced layer with a mxd. The issue I'm having is that the Featureclass "APPL" is contained within a Feature Dataset. When the feature class is outside ...
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0answers
11 views

Can I overlay a CartoDB visualisation on Bing Maps base?

If I am using Bing Maps as my base map, can i overlay a CartoDB visualisation (that I created earlier) on top of it? If so how do I go about doing that? The example on the cartodb site only refers to ...
3
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1answer
19 views

Styling a shape file obtained from S-57 data

I have downloaded S-57 data for a particular region and intend to publish this as a layer in geoserver. To do this I used the ogr2ogr converter utility to convert S-57 data to a series of shape ...
2
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1answer
46 views

Getting selected layer name in QGIS Modeler

If I have a geoalgorithm in my model and I want the value from one the parameters, then how can I get it? For example I want the layer name in the parameter layer in below figure so I get the value ...
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1answer
18 views

Images in my Click Info box are not appearing in both published CartoDB layers

I'm using the simple web version of CartoDB. I uploaded two datasets, each is a layer and both have the same image URL type (URLS for .png Twitter account images). When I visualise the maps ...
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1answer
55 views

Virtual fields are lost when duplicate layers

I've just upgraded to QGIS 2.12.3 - and hoped that the issue which was really time-consuming in 2.12. <3 could have been solved ... On duplicating layer - with tons of joined tables and virtual ...
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1answer
197 views

Mapbox GL JS, self hosted vector tiles with missing levels

Using Mapbox GL JS with self hosted vector tiles in protobuf format where it looks for tiles using {z}/{x}/{y}.pb paths. I have a scenario where I only have data for zoom levels 9, 11 and 13. Is ...
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1answer
137 views

How to speed up QGIS project opening with large point datasets?

I recently loaded a big point set (in terms of memory usage) in the QGIS project i'm working on. This layer is necessary for the project but it is not used often. Most of the time is turned off. The ...
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87 views

Sources for meterological data with high resolution

I was running Maxent on an endemic species of andaman and nicobar.But the climate data I have from worlclim.org ( tile number 29 ) is not of high resolution and thus I can't see the distribution ...
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1answer
49 views

AttributeError: 'Layer' object has no attribute 'listLayers'

I want to use the result of OD cost matrix for my further calculations. However, whne I try to extract the sublayer "lines" it returnes an error AttributeError: 'Layer' object has no attribute ...
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822 views

Using ArcPy, is there a way to change the color of a symbol in a UniqueValuesSymbology object?

I have an template mxd I reference with several pre-defined layers. The only variable I need to modify is the color of certain symbols in the layer. I have tried to modify and dig around the Symbology ...
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2answers
17 views

How to add a WMS layer by default on Map (Geonetwork 3.0.1) [closed]

I need configure WMS layers by default of my geoserver on Map the Geonetwork 3.0.1 installation. How do it?? I try configure on admin geonetwork, but not works Thanks.. Regards.
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0answers
39 views

Rename a empty layer that has been added to a group layer [closed]

Originally I was trying to add a empty layer that was stored on disk. That contained no data. I created the empty layer , by making a group layer within my mxd and then saving it onto a location on my ...
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1answer
30 views

How to extract all pixel values in a raster file

I have a image difference from ArcGIS, which i have performed a remap function on. The layer is a temporary layer and does not have an attribute table, i need all the pixel values to do a frequency ...
2
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1answer
440 views

Get feature from two overlapping KML layers doesn't work

I did an implementation similar to http://openlayers.org/dev/examples/sundials.html The difference is that I have two or more kml layers at the same location and want to show their information ...
4
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1answer
3k views

Layer visibility using maxscale minscale not working

I'm using Openlayer and Geoserver. I have a series of layers that have a scale parameter like: 1:50000-1:25000 where 50000 is the max scale while 25000 is the minscale. I have a map like in this ...
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2answers
51 views

Count number of group layers or Layers inside group layer using ArcPy? [closed]

I am looking for a way of counting the amount of layers within a group layer I have an empty group layer inside my map and I am looking for a way of initiating a process if there are 0 layers inside ...
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1answer
1k views

Changing the name of layer using python

I am attempting to change the name of the layer. The following code changes the name of the layer but then removes the layer from the map, and I am not sure why. Note: I don't have any remove layer ...
2
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1answer
184 views

Programmatically get Layer source properties DataType with ArcObjects?

I am trying to access the DataType property of a Layer in the TOC in ArcMap. The layer is added from a web service as an IMapServerRESTLayer. The Data Type property is listed with Layer -> ...
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0answers
37 views

Arc Collector offline map - Copies of a map layer not downloading correctly

I have an Arc Collector project on the go and everything is working great except for one part of the offline mode. I encountered an issue with the offline version of the map displaying the layers ...
2
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0answers
37 views

Setting extent with python in QGIS in new project

Situation: I am trying to write a simple python script for QGIS. The script aims to load one layer, zoom to given coordinates, and 'place a pin' there. The coordinates will change every time I run the ...
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0answers
23 views

How to intersect layers that do not completely overlap in QGIS?

I have two layers in QGIS that I want to intersect in a specific way. On one side I have a layer of the different biotope types in the city of Berlin. On the other side I have a layer of the ...
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1answer
230 views

Automated map export, iterating layers and editing text

So just a beginner here. I've been automating a few map exports with ArcMap, I've used stack exchange to mash together some scripts to export maps with one FC symbolised using different fields and ...
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1answer
44 views

Can multiple point symbols be stored in one QGIS layer?

I'm new to QGIS, indeed fairly new to GIS systems in general. I have been asked to create about 20 small maps for a local historical society. The maps are for walkers to follow various routes passing ...
3
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1answer
28 views

Adding hover pop-up notes to map Arcmap desktop 10.3

I have a layer of points defining a variety of geologic features overlying a global map. I would like the user to be able to hover over a point and see a description of that feature. Hyperlinks ...
2
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1answer
263 views

Ordering Cartodb torque visualization over Google Maps heatmap layer

I am attempting to create a map with two layers: a CartoDB Torque visualization on top and a Google heatmap layer underneath. So far I have only been able to get them to draw in the opposite order ...
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1answer
37 views

hide unhide layers in leaflet

I want to hide somme layers when I click in a layer and resotore the visibility back after clicking out I tried with this code but it doesn't work here also the punker code Hide show layers var ...
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1answer
2k views

Get layer name by click on features OpenLayers3

I want to add selec interactions to my OL3 map. Adding two different select interactions like this is not working. Only the second one works. Like this: var select = new ...
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1answer
217 views

Where to upload layers in geoexplorer?

I just install opengeo suite (boundless) in my machine and try to explore it. I followed the instruction in user manual and I encountered a problem. In "Load your data with GeoExplorer" part, after ...
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1answer
1k views

Marker layer not responding to events in OpenLayers

I have multiple layers in OpenLayers: three vector layers, one google map layer, and a marker layer. I registered feature selected event to all three vector layers (which works fine, but btw is that a ...
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2answers
36 views

Benefit of adding Metadata descriptions to layers using ArcCatalog?

I've tried adding Metadata to my primary shapefiles before using ArcCatalog, however, I don't know if this really adds anything professionally to my layers. Is Metadata and Layer description in ...
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0answers
33 views

QGIS polygonize tool not working [closed]

I am having a problem using QGIS ver 2.10.1 Pisa. I am trying to use the polygonize function on a raster .tif image, and it runs, but only produces a thin sliver of polygons at the top, then stops ...
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1answer
73 views

Establishing Default Query layer for Google Earth in “Map to KML” export from ArcMap?

I export a lot of maps for customers who request them from our office. Recently I have seen more and more requests for us to export our GIS into the .KML or .KMZ file type so they can be viewed on ...
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1answer
43 views

Adding Video to CartoDB

I am trying to Add a layer with Youtube in the info window as follows HTML <div class="cartodb-popup v2"> <a href="#close" class="cartodb-popup-close-button close">x</a> ...
1
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1answer
26 views

is there a way to save a temporary file as a permanent raster layer

I am trying to build a raster table for a temporary layer i created from an image difference on ArcGIS image analysis. Is there a way to save the temporary layer from this image analysis as a ...
1
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1answer
219 views

Why does Describe function fail on annotation layer with RuntimeError: Object: Describe input value is not valid type?

I am accessing layers in an mxd programatically and also accessing the layer properties using the Describe function lyr =arcpy.mapping.ListLayers(mxd) # gets me the list of layers in mxd desc= ...
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1answer
822 views

How to query all layers in ArcMap and get access to them by name or index?

I have ArcMap with tons of layers. Some of these layers may contain another layers with data (aka Composite layers) or they don't. The depth of composite layers in unknown. I need to query all layer ...
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0answers
40 views

First click layer selector doesn't work in CartoDB?

I'm working on an interactive map using CartoDB built of Leaflet.js. I added a layer selector which works fine after the first click. The first click just doesn't work, if I click the selected layer ...
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1answer
34 views

How to make one checkbox that shows multiple layers in qgis or qgis2web?

I need to create one checkbox in qgis (and qgis2web) that than will show 2 other layers. So basically i don't want to check two checkboxes in the layerlist, but i want to simplify this proces by just ...
2
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2answers
43 views

How to use loop to add georeferenced JPEGs from folder to mxd?

This is my first time using this site and I'm a bit new to ArcPy. I've looked around for a while but couldn't quite find the answer I was looking for. I have many folders with georeferenced topos in ...
11
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3answers
413 views

How many layers are too many layers in ArcMap?

I work on ArcGIS using a Citrix virtual software connection at work. It is dreadfully slow at times, and without any changes to the MXDs I'm working on, one minute ArcMap can be operating at a ...
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2answers
314 views

How to request group of layers from Geoserver with turn off/on capabilities? Geoserver layer organizer

I would like to organize my layers by topics, and for each of them (if chosen on the client-side), I would like to request a single-tile image, which contains the predefined layers in the correct ...
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0answers
12 views

I have updated my Dynamic workspace by adding one new feature class but its not being updated in map service in arcgis viewer?

Initially when I published map service there were 2 layers in mxd. I registered file gdb with Server and also allowed it as dynamic workspace on Server. Then I deleted one layer from the mxd with ...
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1answer
199 views

geoserver/openlayers: multiple layer geotiff

I have a geotiff file with multiple layers (46 layers), each layer corresponding to a different date (the geotiff layers corresponding to sea surface temperature, 1 layer per year). I imported this ...
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1answer
199 views

ArcGIS API for Javascript Not Adding Layer and/or Graphic during mouse event handler?

I am trying to add a graphic to my graphics layer during a map mouse event. In the javascript console, I can see that my graphic object is created and no error is thrown when I add the graphic to my ...
2
votes
1answer
50 views

Why QGIS 2.12 “forgets” selection colour opacity settings?

I have few vector layers which I need to edit frequently. I'd like to be able to see through the layer when it's selected. I changed selection colour from both: Project Properties General settings and ...
3
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1answer
2k views

Changing data source of layers with ArcPy?

How do I change the data source of all layers in a map document using ArcPy and Python?
0
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1answer
2k views

Draw order (zIndex) of OpenLayers polygons and points in the same layer

My question is similar but slightly different from this one: http://stackoverflow.com/questions/5003349/openlayers-vector-features-z-indexing I have an OpenLayers Vector layer which contains polygons ...
0
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1answer
189 views

Pass coordinates parameters to geoserver pgrouting service from Leaflet wms tile layer

I've configurated a pgRouting service in Geoserver, following the steps on the documentation it's easy to accomplish. Reading the documentation, existing examples, etc.. I've come to undestand how ...