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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381 views

Listing Elements or Datasets of Layer gives ERROR 000840 value is not Feature Layer?

I used Ar5cPy to do batch processing of Network Analyst - Make Service Area layer of thousand of stores. Everything went well except now, I am stuck with layer (.lyr) files and I would like to ...
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1k views

Add AutoCAD .dwg annotation file to Arcmap using python (Same as +ADD Data button)

I would like to add an AutoCad .dwg file to Arcmap using python the same way that the +ADD Data button does. I can add an Annotation layer with python but only as a feature layer not as an annotation ...
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1answer
479 views

why can't I load a layers list to select from to the map in openLayers 3, addEventListener and attachEvent are unavailable

I've tried to incorporate this sample that shows how to switch base layers into a page I am working on: http://openlayers.org/en/v3.10.1/examples/bing-maps.html When I try to load my page with the ...
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1answer
49 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
65 views

GIS information on worldwide cases of wildfires?

I am developing some case studies on wildfire cases around the globe, some examples include California (2007), Australia (2009), Moscow (2010), Valparaiso in Chile (2014), and so on. I was wondering ...
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1answer
34 views

Legend hangs with large featurelayers at startup

My problem is that I created an app with a lot of services that the user can use. The problem is that when I implement the legend widget and the code goes over startup(), the app becomes stuck and it ...
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1answer
423 views

How do I programatically edit the layer 'Display Expression'

I'm wondering if someone has or knows where a tool is to edit the 'Display Expression' of a Layer, or more specifically, a TableView, in ArcGIS Desktop. I know that it can't be accessed with Python, ...
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1answer
130 views

Overlap or intersect two choropleth [closed]

I have two choropleth of the same area but with different concentration data and I need to overlap them. My aim is to highlight the areas of intersection between the points with the highest ...
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1answer
245 views

How to sum the values for bins with the same location?

I have two maps in csv form, each has a latitude, longitude, and value column. Since not all the positions in one map are in another map, is there any way in QGIS to display a new map which only shows ...
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1answer
4k views

How to Obtain the feature attributes from feature collection

I am able to obtain the features of the layer which is selected by the user in the Layers table and then intersected by a user defined polygon, using e.features. I was able to obtain the attribute ...
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1answer
1k views

Applying layer file not formating labels in ARCGIS 10

I'm applying layer files in ARCGIS 10 using the ApplySymbologyFromLayer_management command via a python script tool. The symbology part works fine but the lables are not formatting. It is my ...
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1answer
31 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 ...
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60 views

Code error - remove layer using python

Continuously to How to remove layers that are not in visible df extent i try to remove layers that don't appear in the data frame with this code: import arcpy,os from arcpy import env env.workspace ...
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1answer
133 views

Arcpy script to turn off all layers in a MXD

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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51 views

ArcGIS creating individual layers for unique attribute in a given feild. Limitations of Where Clause

I am putting together some code that makes a layer for each unique attribute within a given field. So if I had a shapefile that contained point data for locations of say postboxes in every city , for ...
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2answers
131 views

How to remove layers that are not in visible df extent

I am working on ArcMap 10.3 and I have a map with 50 layers in it. I am trying to check if layers are in a data frame. Unlike How to check if layers in a dataframe with Arcpy, I want to define the ...
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0answers
171 views

Missing Raster/Vector Layers after converting KMZ using KMLToLayer tool of ArcGIS Desktop?

I am trying to write a tool that will let users upload a KML/KMZ file and then be able to view it in a client application (something like an esri js api or Flex app). I am ok with storing the data in ...
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1answer
1k views

How to resolve error “Handle bad layers” in QGIS?

I'm new to QGIS and have been seeing what it can do for me – seems good. I imported shape file data from a UK Ordnance Survey data file and saved the file in a new folder. It was very good, doing all ...