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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24 views

Spatialite union more than two layers / tables

Is there a way to union or collect any number of layer geometries with Spatialite (or another spatial database)? Two is simple enough, but more than that becomes convoluted. For example, if all I want ...
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1answer
44 views

Geotools : adding multiple points to the same layer

I've got a java Swing application which loads a shapefile and draw a map. Now I need to allow the user to click on the map and add points. I've successfully completed that with the following code. ...
4
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2answers
61 views

How to get layers in x number of subgroups?

I have a project which has dozens of groups and subgroups. E.g.: Main_Group > Sub_Group_1 > Sub_Group_1A > Layer_1A > Layer_2A How can I access ...
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2answers
33 views

Repair data source for all layers simultaneously using QGIS

In QGIS 2.12 i opened a map after i changed it location in the hard disk. Hence, all layers must be repair. I know the option to fix every layer separate, but i didn't find an option to "repair data ...
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1answer
32 views

Creating new layer using selection from attribute table in QGIS?

How do I create a new layer using a selection from an attribute table in QGIS 2.10.1? Previous answers on this topic do not help -perhaps because they relate to older versions of QGIS
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3answers
41 views

Cannot find data source to set data source for layers in MXD?

I got some data in mxd format and when i try to open it: I tried to set data source but i cannot find the data source because the orginal file was saved in H:\drive and i do not have h drive on my ...
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0answers
12 views

How to divide bitmap into differnet layers by RGB color code in MapInfo

I have got bmp file with 7 colors. How to get from this bitmap 7 different vector layers depending on RGB color code? For example first layer is water space with blue color, second is buildings with ...
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1answer
35 views

Leaflet: Panes and Popups

I have a leaflet map with a circleMarker layer that has a popup. This works as expected. dotLayer = new L.geoJson(dots, { pointToLayer: function (feature, latlng) { return L.circleMarker(latlng,...
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1answer
37 views

Turning Text into Layer in ArcGIS for Desktop?

I am using ArcGIS 10.2.2 for Desktop. Can I turn the text boxes which I have inserted on my map into a layer which keeps the same aspect ratio with the map?
2
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1answer
36 views

save as Layer script not working

I've created script in Python for ArcGIS to save shape file as layer file..the code throws an error ERROR 000732: Input Layer: Dataset D:\core i 5 data\symon assignment\Swat\clipped\buffer.shp ...
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0answers
45 views

How to find a layer by name in the QGIS layer panel? [duplicate]

I have a large QGIS project organized with several groups in the QGIS layer panel. It happend to me a couple of times that, when the computer is operating with low resources (low free memory-high CPU ...
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3answers
87 views

Searching for changes of 2 layers based on geometry, Arcgis for desktop (ArcEditor

I´m trying to make a tool that would be able to compare 2 layers of any type (polygon, point, polyline) and find differences between them. Lets say i have a layer of roads (Polyline) from 2005 (layer ...
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1answer
22 views

Geotools : A layer to draw the traffic volume of a road

I have developed a standalone swing application loaded with a shapefile of a road network using geotools (v.14.3). Now I would like to implement a feature where the user may zoom the map, and at a pre-...
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2answers
19 views

Exporting waypoints layers from ArcGIS for Desktop to Google Earth?

Is it possible to export waypoints Layer (ArcGIS) directly to Google Earth? I can export waypoints tables from MapINFO directly to Google Earth via EXPORT MAP TO GOOGLE EARTH tab.
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2answers
53 views

Using QGIS shapefile layer in ArcMap project?

I created a QGIS shapefile layer in QGIS that I want to give to a friend of mine for his ArcMap project. Will he be able to open and use my work?
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0answers
15 views

Geotools : Getting currently click layer from MapLayerTable

I've added a MapLayerTable to my application, and I'm loading multiple layers using shape files successfully. Now I would like to select features on the map of the selected layer. For this, I would ...
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0answers
11 views

ILayerFile.Open - The maximum record length has been exceeded

I have been able to use ILayerFile layerFile = new LayerFileClass(); layerFile.Open(layerFilePath); with out any problems until it just started giving me an error. Error: -2147220646 ...
2
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0answers
18 views

Trigger event after KML Layer completely loaded

I want to set the bounds of my map after a Vector (KML) Layer is loaded. kmllayer.events.register('refresh', kmllayer, function(evt) { map.zoomToExtent(kmllayer.getDataExtent()); }); In the ...
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0answers
23 views

Clip Layer Stack

I layer stacked the Landsat 8 Bands (1-7) in QGIS and made a polygon shapefile. Every time I try to clip my layerstack with the Mask layer I just get a completely black output raster. I want to use ...
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1answer
68 views

Looping arcpy.mapping.updateLayers()?

I've got some problems with the following code, found on this answer to Is there a way to auto-update symbology between .mxds for the same shapefile? (Python?): import arcpy.mapping as mmap mxd = ...
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0answers
60 views

arcpy symbologyType is always OTHER, but I need UNIQUE_VALUES

I am trying to load a TIF file to the mxd using arcpy, then add a definition file to map colouring. For one layer I have the problem, that the amount of values will always be different, sometimes it ...
2
votes
1answer
32 views

Get layer's “Feature Type Details” using geotools

I'm trying to do something like this: Check Geometry Type of a Shapefile Using GeoTools? ... but getting from a layer (Shapefile source) in Geoserver. In short, how can I get the data from this ...
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0answers
21 views

Draw nearest points for specific point-line couples

I have a network made of several segments and some nodes located in the map. What I want to do is to choose individually a couple node-segment and find the location of the closest point to the node ...
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1answer
38 views

I only know how to turn off the entire current layer. But I want off only some of the layers specified

I only know how to turn off the entire current layer. But I want off only some of the layers specified #turn all layers in current map doc on: print "Button2--turn on layers" mxd = arcpy.mapping....
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1answer
31 views

Simple answer: Difference between a dataset and a map [duplicate]

For a project I am involved in, we are creating a dataset that will show the extents of natural areas and provide an estimate of the ecological integrity of that area. We are calling it an "Ecological ...
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1answer
80 views

ArcGIS 10 arcpy to add a WMS Service to MXD

I want to batch insert WMS layer to my arcmap MXD project with python/arcpy script. Some issues has been unanserwed, here my "state of art": ESRI IDEAS ESRI GeoNet community #1 ESRI GeoNet ...
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0answers
30 views

Avoiding lost layers when using QConsolidate?

I want to save all the files in my project and the project file locally on my computer. The files are currently saved on a external hard drive. I have tried QConsolidate before, and it worked, but ...
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0answers
28 views

Right mouse button on Layer

I used QGIS in "Lisboa" and "Dufour" versions. From when I first updated to "Lyon" and then to "Essen", in "Layer Orden Panel" I no longer work the functions associated with the right mouse button to ...
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0answers
30 views

creating a new layer/selection based on the conditions in Python script? [closed]

Is there any easy way how to write a python script, which would create a new layer based on location from a border line and "if" condition? I have two layers A and B, both are made of several ...
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0answers
15 views

How to control layer visibility in the Map Composer Overview map? [duplicate]

I wonder if it is possible to choose which layers would be visible in the Overview Map loaded in the Map Composer. Note that this is already possible for the Overview Panel in the QGIS Desktop: for ...
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0answers
37 views

Comparison of polygon geometry of 2 layers (ArcEditor)

I´m facing the following Issue: I´m trying to find changes between 2 continuous polygon layers. Polygons that need to be compared dont have matching IDs - to explain, I have polygon X and polygon Y ...
2
votes
2answers
33 views

Printing selected Region of map with several layers in QGIS?

I creaetd a map with 6 vector layers (each is a .shp-file), the geometry type varies: 4 are polygons, 2 are lines. I would like to print a region - to be specific approx. 20 individual regions - ...
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4answers
72 views

When opening dwg files are there hidden fields by default in Layer Properties of ArcMap 10.3.1

There is a lot of fields in Layer Properties that are hidden by default when I open dwg file in ArcMap 10.3.1. Is there some properties that define which fields are visible in Attribute Table and ...
2
votes
1answer
40 views

MXD defined symbology not retained

I'm trying to create some layers from feature classes located in the geodatabase. The MXD is created, symbology on feature classes defined within ArcMap, but for some reason my symbology is not ...
-1
votes
1answer
58 views

Apply same symbology to many raster layers in ArcMap?

I have many TIFF files (100+) that need to have the same symbology using the unique value option. Is there a quick way in arc 10.3 to do this?
2
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0answers
46 views

QGIS Atlas zoom to intersection between two different layers

I have two polygon layers, one is about different land owners boundaries and is used for atlas generation, and the other is about forests inside each property. In atlas generation sometimes i want to ...
0
votes
1answer
52 views

How to add multiple text elements in ArcMap using ArcPy

I've been able to add a dynamic text element (with an element name of 'TestName') that reflects a layer name and that changes for each corresponding exported layer to a GIF. I am now trying to add a ...
0
votes
1answer
65 views

Is it possible to subtract two layers in MapInfo or MapBasic?

I have two tables, one is a cartographic map and the other is the map of all lakes. Some of the lakes are in-land and so they are not excluded from the cartographic map. I want to calculate the area ...
1
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1answer
21 views

Keep Unhandled layers in QGIS

I saved a .qgs file with home server postgis layers. Had to work remotely, but will lose unhandled layers upon opening the file. I can connect to these through my GeoServer, but I'm going to lose my ...
1
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1answer
54 views

Joining multiple polygons inside a single polygon in QGIS

I need to somehow "join" information from two shape files: zoning - these are large polygons indicating the zoning code for a moderately large area, typically hundreds of separately owned parcels (...
1
vote
1answer
20 views

Rename a Layer inside CartoDB

I would like to simply rename a layer inside CartoDB. I see buttons for the SQL Query, CSS code, and some HTML... but I don't know where to put my code. setLayerName('Test')
3
votes
1answer
88 views

Writing a custom function in QGIS to rank features

I have written the following custom function in python for QGIS, cobbled together from various sources. The aim is to use it in the expression editor to return the rank of each feature based on the ...
0
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1answer
88 views

Select by location using ArcPy

I try to select by location all layers that intersect layer named "frame", and then remove from the maps other layers that don't intersect it. Finally, i want to print the all the removed layers and ...
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0answers
47 views

Create Layer With Selected in QGIS

Came across this "Create layer with selected" button in the result for a Spatial Query in QGIS. And simply, this creates another layer from the same source with a query on the IDs. Does anyone know if ...
1
vote
1answer
54 views

How to create dynamic text in ArcPy that recursively reflects the exported layer name from a list of layers

I have a script shown below with the help from @Midavalo that exports irrig_0, citylyr, boundlyr as a GIF. Once this is done the script then exports irrig_1, citylyr, boundlyr as another GIF and so on....
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1answer
71 views

Making multiple layers editable in QGIS?

I am using QGIS and I want to eliminate fields from 300 shapefiles. All layers are loaded and selected. Is there a way to enable all 300 for simultaneous editing?
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1answer
81 views

Does leaflet support user defined Layer identifiers

It would be nice to be able to check for a layer presence or remove it without having to keep an explicit reference to it. To that extent I would like to use ad id for the layer that I can compute ...
1
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1answer
54 views

How to export specified layers in ArcMap using ArcPy

I am trying to export specific layers from an ArcMap .mxd. From the TOC below I would like to export "irrig_2, citylyr, boundlyr" as a GIF. Once this is done the script would then export "irrig_1, ...
2
votes
1answer
39 views

lyr.datasetName works with “CURRENT” mxd but not with mxd path

I have some mxds in wich I want to set all the layers a layer description. This works as far as I use the code with current mxd, but if I give a path it has no results, and I also don't get any error ...
1
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1answer
55 views

MySQL database layers invisible in QGIS

I'm encoutering a problem when connecting a MySQL database to QGIS. When the connection is established and a layer is imported, the layer itself will not render and thus isn't visible. The layer ...