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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Making feature layer selectable in ArcObjects Java without getting AutomationException 0x80004005?

I am currently making a FeatureLayer from a resultset. The feature layer seems to work properly and will display on the map. However when I choose "select all" on my feature layer I get the ...
2
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2answers
129 views

How do I find a layer based on source name using ArcObjects?

I am relatively new at creating tools with ArcObjects and I am having trouble finding a layer based on the layer's source name by looping through all layers. I've seen here that it is possible, but I ...
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1answer
56 views

Updating In Memory layers, saved layers, group layers and single layers? [closed]

I was wondering if someone can give an explanation to why the following the scenarios happen ? or direct me to relevant thread or documentation? Back story is that I have been working a lot with ...
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1answer
89 views

Adjust PictureMarkerSymbol size to distance (ArcGIS 10.2.5 SDK Runtime for .Net)

I'm working with ArcGis 10.2.5 Runtime SDK for .Net. I have created a PictureMarkerSymbol that shows data of an area of interest in miles, and the question is, how can i fit the symbol size to a ...
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1answer
124 views

WMS layer details not clearly visible in Leaflet

I cannot figure out where the problm is. I use GeoServer and Leaflet. My problem is that when I visualise some layers (in particular that with the names of the clients) I cannot see them all at each ...
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1answer
46 views

ArcGIS converting list of enumeration in single field of s-57 data?

Im storing s-57 data in an MDB which is being symolised via a layer. Some attributes in s-57 data can be a list of enumerations and I want to find a way to show the actual values the enumeration ...
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66 views

Getfeatureinfo is not working with geoserver point line sources

I'm not able to get information with Getfeatureinfo when clicking on point & line layers. For polygons it works fine. I'm using the code below to execute the WMS service: google.maps.event ...
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2answers
307 views

Adding a Polygon to an OpenLayers3 Map with coordinates read from a string

I do have a bunch of coords as a string read from a wps request result. I want to display these coordinates as a new layer added to the exisiting map. What I do is to split the string by containing ...
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268 views

Leaflet : Change marker icon from onEachFeature instead of pointToLayer

I'm referencing external data, matching it up with particular fields in feature.properties and using that to decide which layer to put the feature in, all of this from inside the onEachFeature part. ...
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1answer
315 views

Adding an OpenLayers 3 layer parameter to change external layer controls

I have this JSFiddle that has a couple of layers and then a box after it where my opacity slider would be if all the correct external resources were loaded in. In the 'Cities layer 2' layer ...
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31 views

Updating basemap and layers at same time using ArcGIS Runtime SDK for .NET?

i'm working with ArcGIS Runtime SDK for .NET 10.2.5, my app has different graphiclayers with objects that are continuously moving around the map (new position data is provided fastly), the problem ...
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0answers
115 views

Heron template deactivates overlays

I'm using the template of Google layers with an overlay of World Cities(OpenGeo), whenever I try to add some more overlays the application results in an error. It loads all the overlays but whenever I ...
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0answers
20 views

Toggle layers on print composition

I want to use QGIS to make several views of bold colors for one same map. I've been using the layers in order to keep one on top of another. How could i make a composition on the print composition ...
4
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1answer
123 views

Automatically create new layers from a single dataset using definiton query for unique values in a field

I would like to automatically display a featureclass as different layers based on a specific field. I've seen a few tools online and on XToolsPro under the category of Split by Attributes, but they ...
2
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1answer
87 views

Merge and export two layers that utilize blending modes

I have a new question that I'm trying to solve. Spent more time than I can to admit trying to come up with a solution that doesn't require bringing the layers into Photoshop or the GIMP (which would ...
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1answer
114 views

How to get programmatically selected layers from the QGIS legend?

My QGIS plugin exports all layers from QGIS to KML format. Now I'd like to export only selected layers. However, I can't find any hints in QGIS API. Is it possible to iterate over selected layers in ...
2
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1answer
148 views

Apply Symbology from a Layer

I am trying to update the symbology of a layer with another layer with a python script. I have written a code for this. But I am getting the following error message : ERROR 000732: Input Layer: ...
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1answer
132 views

Layer selection visibility unchecked in initial state in OpenLayers 3

I have this JSFiddle example that has two vector layers in it, 'Cities Layer 1' and 'Cities Layer 2'. As you can see from this example, cities layer 1 has a visibility set as the default of true and ...
2
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1answer
369 views

How to load a *.qgs file in a C++ QGIS standalone app?

I'm using QGIS-2.4.0 API to develop a standalone app by C++. I saved a test.qgs file in QGIS Desktop software, in the project, there was one layer and it was visible. Then I loaded the test.qgs ...
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1answer
46 views

Geoprocessing breaks my data links after upgrade?

I've had this problem all day, and it's happened before, too. I am running desktop 10.3.1 and want to produce a very simple buffer from a single parcel. The output is assigned to the same .gdb that ...
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0answers
314 views

Filter geoJSON layer after it has been loaded

I'm declaring and defining a geoJSON layer first, like: var layer1 = L.geoJson(null, { onEachFeature: function(feature, layer) { ... } }); ..and then loading a CSV into it, like: ...
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97 views

QGIS python originalName() does not return actual original layer name

I am writing a Python QGIS Plugin, using QGIS version 2.6 as the basis for development. When loading data into the canvas programmatically, I am trying to maintain the spatialite table name as the ...
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71 views

What is corrupting my layer file?

I'm trying to save layer files from a colleague's mxd. As usual I right clicked on the layer and saved as layer file. Simple - but no - the layer files can't be opened. I get this message "Adding ...
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1answer
56 views

.net arcobjects retrieve user value from layer data source

I have a need to get the user value from a layer properties. The value is from: Layer Properties -> Source -> user in Data Source (sorry not enough score to attach the picture). I tried to check ...
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1answer
48 views

How do i match Layers in QGIS

am trying to create a map, which shall show NRW ( a part of Germany) with some extra gimmiks. Those Gimmiks are Coordinate based locations of several Manufacturers. Later on i want to adjust the ...
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1answer
218 views

Single WMS from single mapfile with several rasters in MapServer

I have several rasters in a single mapfile, I put them as layers like here: LAYER NAME "Layer 1" GROUP "All Layers" TYPE RASTER STATUS ON ...
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2answers
701 views

How do I reach a layer inside a GroupLayer?

I am having problems in ArcObjects. I am struggling to get to the individual (feature-)layers inside a GroupLayer. Does anyone know how to do that ?
2
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2answers
156 views

definition query with 3 plus variables to loop with python and save layer files

I have a script that takes an input feature class and uses a field within this class to create a definition query for each unique field. A question on how to do this is listed below saving layers for ...
2
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1answer
35 views

Postgis spatial query st_disjoint

I have 2 layers that I want to compare. I wish to retrieve the features in the layer 1 that have no part in common with the features in the layer 2. I try queries like that but do not returns me the ...
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23 views

Finding how many points are in polygon of layer in specific time using QGIS?

I have the layer that I created with the number of earthquakes in each region in the last 400 years. I want to know the number of earthquakes that occurred in one specific region prior to 1900. How ...
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1answer
48 views

Render or display only the boundary of a vector layer containing thousands of polygons

This might be a very basic question but my lack of experience makes it really hard to answer. To have a cleaner map to print I want to display only the boundary of a layer composed of more than ...
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0answers
49 views

C++ QGIS Conditional Label Colouring

I am using QGIS and C++. When I create a layer of polygons with labels in the center I am able to use a RuleBasedRenderer to control the background colour of the polygon. How do I similarly control ...
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2answers
48 views

How to convert KML file to layer , on an alrady existing map in arcgis

I have a map in arcGIS, and i want some kml data to be shown over that map. But if i convert kml to layer, the data is not visible on that map. Both the layers can be seen separately by "zoom to ...
2
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1answer
105 views

“No data available” on hover

I have the following map: https://aressk.cartodb.com/viz/408dd3ea-deea-11e4-9d17-0e9d821ea90d/embed_map It has two layers. On the Waypoints layer, I have Hover turned on for the Info Window. On the ...
2
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1answer
73 views

QGIS TimeManager with multiple features at one time?

Since the data I have to deal with is really large, it is not practical to separate every feature into one line in the CSV file. Is there any way to animate them as a whole layer? I have ...
0
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1answer
51 views

Copying the visual shapes from another layer to the current one, while keeping the current layers' database

There are 2 layers that have similar shapes but small differences. I want to keep the shape of layer 1 while having the data of layer 2, which includes more data and it will be animated using ...
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1answer
189 views

set the transparency layer group with Python

How can I set the transparency for all layers within a group of layers? I assume this will require the use of a FOR loop in the Python Console. Based on How to set the transparency for multiple ...
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0answers
148 views

QGIS - Pop-up menu not displayed when right click on a layer in layer tree view

I'm developing a custom QGIS application using the QGIS API. I've been using the API provided with QGIS Brighton (Version 2.6.1) and have been developing the application in Python in a Windows 7 ...
2
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1answer
108 views

PyQGIS: How to get the list of valid layers in TOC?

To get the list of TOC layer names I used the approach suggested here: for layer in QgsMapLayerRegistry.instance().mapLayers().values(): print layer.name() But this method is not reliable due ...
2
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1answer
207 views

How to display map tips only for one layer?

I'm relatively new to QGIS. I added the hover labels to my map using the Map Tips. My issue is that it makes hover labels for EVERY layer on my map. I only want it to make labels for one layer. Is ...
2
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0answers
105 views

How to make a model with more than 2 input layers for buffering and merging?

Would it be possible to add more inputs to Buffer and Merge? From what I can see there is a limit of two input layers per both. As far as I know this is possible in ArcGIS's Model Builder but from the ...
1
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1answer
204 views

Adding point layer in QGIS from SQL Server failing

I just downloaded QGIS a few days ago (version 2.8.2-Wien) but I am not able to get it to work as I thought it would. I tried pulling in spatial data from sql server (a "geometry" column containing ...
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0answers
88 views

GDAL Create Layer WFS

So I'm trying to write a program that has the ability to read and write data from a WFS (Web Feature Service) I've managed to pull all the data I want from the WFS. Now I'm trying to write to it and ...
0
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1answer
150 views

ArcObjects WPF Select layer in legend

Can I select a layer, by code, in the TOC/legend of a map in a WPF ArcGIS Runtime application? I develope in ArcGIS Runtime SDK 10.2.2 for .Net in C#.
2
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1answer
78 views

Replacing layer ArcSDE connection

I am very new to using Python... I have an MXD with all of my layer files in it. They are grouped by category etc. Each layer file references a dataset within my SDE. My SDE has two different ...
0
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1answer
115 views

Can you have layer control in Odyssey.js?

I've been playing around with odyssey.js and made a few map stories with it: http://www.burdgis.com/blog/archive/map-stories/ What I can't work out is how to toggle layers. I imagine you would need ...
3
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2answers
383 views

How to create multiple QGIS layers from multiple text files?

I have a few hundred txt files (each representing a line of a river bed profile) that I need to load as (point-) layers in QGIS. Partial example: 4504764.8331;5374251.3024;397.8871;2 ...
5
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1answer
2k views

what dictates the drawing order of overlapping features with in the same layer/feature class in ArcGIS?

I know that in ArcGIS drawing order is controlled by layers, and if I want to make some features be drawn on top of other features I can use definition queries to separate them into different layers ...
0
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1answer
130 views

Failing to use ArcGIS map as basemap in GeoNode

I'm trying to add the ArcGIS map service to my project in GeoNode but I'm failing to do so. I've read around and I saw information that says I need to make a XYZ tile service (something like this: ...
6
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1answer
477 views

Can I save an ArcGIS geospatial PDF with layers turned off, which can then be turned on individually in a pdf viewer?

I am working on an mxd that has many individual point layers (displaying species locations). To make life easy for my stakeholders, I'd like to export to a geospatial pdf so that all of these point ...