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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26 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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1answer
47 views

Remove layers using python- path orientation

Expanding on my previous question Code error - remove layer using python, i try to remove layers from mxd's (in ArcMap 10.3, python 2.7.8), that don't appear in the data frame with this code: import ...
2
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2answers
688 views

Add multiple Layer files in subdirectories to mxd using python

I have more than 300 layer files located in many sub-Folders and sub-sub-Folders. All Sub Folders are located in one large directory.I read Use python to add layers to TOC and I try, with arcpy, to ...
2
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3answers
2k views

Adding shapefile as layer in ArcMap via Python scripting?

I am trying to automate various tasks in ArcGIS Desktop (using ArcMap generally) with Python, and I keep needing a way to add a shapefile to the current map. (And then do stuff to it, but that's ...
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3answers
413 views

Insert layer file to specific data frame

I have a folder that contain mxd's projects. Each mxd has 3 and more data frame. I want to insert layer file to a specific data frame with position in the TOC. I don't know how to do it. I'm trying ...
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3answers
35 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
10 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 ...
16
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3answers
4k views

Using ArcPy to get layer symbology?

Since ArcGIS 10 comes with ArcPy package, i'm wondering it is possible to use ArcPy functions to get Symbology (i.e color, width...) of a layer?
2
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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?
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1answer
29 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 ...
2
votes
1answer
33 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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1answer
19 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 ...
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2answers
16 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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1answer
264 views

Turning off all layers in MXD using ArcPy?

I tried this standalone script to turn off all layers in the MXD: print "This script turns off the following layers:" try: arcpy except NameError: import arcpy mxd = ...
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0answers
11 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 ...
4
votes
2answers
1k views

Setting layer visibility in QGIS Python API

Im having a problem toggling the visibility of map layers in pyqgis (2.4). I have a simple interface, just the map canvas, no legend, and basically a radio button that toggles between two raster ...
2
votes
0answers
17 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
22 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
67 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 = ...
2
votes
1answer
2k views

How to overlay roads layer on top of all layers in OpenLayers?

I want to put roads layer (from any source, please recommend some..) on top of my KML polygons and base layer: baseLayer = new OpenLayers.Layer.WMS("OpenLayers WMS", ...
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0answers
51 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 ...
5
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0answers
202 views

Is there a limitation on the numbers of layers that can be displayed in QGIS?

I have been looking for an answer to this question for the last several weeks, so hope that someone here has encountered the same issue and has a viable solution to my problem. I am currently using ...
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0answers
20 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
900 views

Why does arcpy.mapping.Layer give Runtime error: CreateObject Layer invalid data source?

I want to connect an existing .lyr file to a variable defined as lyr2. lyr2 = arcpy.mapping.Layer(r"C:/Iso100Red.lyr") Although its a .lyr file I´ll get this Errorcode: Runtime error : Object: ...
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1answer
71 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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1answer
27 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 ...
4
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1answer
1k views

Extracting donut holes as separate layer in QGIS?

Does anyone know how I can extract the holes in a polygon layer as a separate layer in QGIS? An example could be a country with a number of lakes cut out of the polygon - I need the lakes.
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3answers
4k views

Organization and tidiness of multiple copies of layers? [closed]

Back in the days when I was in the university I had a "Organization and tidiness" problem – I was unorganized and kept my layers in different folders without distinct names and hence had multiple ...
6
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1answer
53 views

How to recursively get all lyr file properties from a group layer on disk

I'm writing a python script tool that will recursively search through a folder and all subfolders and find all .lyr files. Ultimately, I'm writing a CSV file which contains the path of the .lyr file, ...
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1answer
52 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 ...
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1answer
37 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 = ...
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1answer
27 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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0answers
27 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 ...
3
votes
1answer
248 views

Startup python script to re-join layers in QGIS?

In QGIS 2.2, there is a bug which involves using the JOINS properties on a vector layer (that is already being joined with several other vector layers) whereby the attributes are not fully loaded. ...
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4answers
64 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 ...
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0answers
29 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 ...
2
votes
2answers
32 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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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 ...
0
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0answers
35 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 ...
1
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1answer
48 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 ...
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1answer
278 views

How can I change layers visibility while I zoom in GeoServer?

I want to change layers visibility while I zoom , here are my screenshots. where is my error ?
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0answers
13 views

How to re'display feature after using my 'filterFeature()' function?

The code below is a function that hides a certain region in the map. The problem is that I can't redisplay it. I've tried by removing this line: wfs2.features[i].style = {visibility:'hidden'}; but ...
1
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1answer
143 views

OpenLayers 3 Layer Visibility Checkbox

This JSfiddle example currently changes the visibility of a layer using two individual buttons. However, i want to change this to just one check-box, the check-box in this case has been styled by ...
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0answers
316 views

Layer set visible

I add this layer like this: var POIData = new esri.layers.ArcGISDynamicMapServiceLayer("https://mysite.com/ArcGIS/rest/services/POI_Data/MapServer"); map.addLayer(POIData); ...
2
votes
1answer
33 views

How to display street names from OS StreetAny layer?

Using QGIS version 2.10.1-Pisa. I have imported layers from an Ordnance Survey data set. I have a layer called 'Street any' which gives me the boundaries of the streets which I can see. I can see ...
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2answers
608 views

Arcpy: replaceDataSource, cad_workspace

I am having trouble replacing the data source on CAD files using arcpy. Everything I have tried runs into this error: Runtime error type 'exceptions.ValueError' : Layer: Unexpected error Here is a ...
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votes
1answer
50 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
votes
1answer
39 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 ...