Tagged Questions

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.

learn more… | top users | synonyms

1
vote
0answers
120 views

Part of text missing in legend and text boxes

I have had issues lately when exporting to pdf from ArcMap 10.2. Parts of the text sometimes fall off and goes missing. Mostly it's been some lines in legends, but now also text boxes. The text is ...
0
votes
0answers
28 views

LayerSwitcher problem in FireFox: layer after turn off and on are not displayed

I have a problem displaying layers using the LayerSwitcher. The problem only occurs on FireFox and not in the IE. On some applications, layers which I turn off and again on, are not displayed until I ...
1
vote
1answer
223 views

How does Leaflet layer ordering work with CartoDB layers?

All, I'm trying to figure out how Leaflet layer ordering works when you have layers coming from CartoDB. I have a map with 1 polygon layer (cartodb), 3 point layers (cartodb), 1 basemap layer ...
1
vote
2answers
177 views

Using Qt Designer to Create a Form in QGIS that can search for a specific point in a layer

Good Day! I would like to ask if you can create a form in Qt Designer to create a form that can search for a point on the map using data that the user will provide such as the Name. I am currently ...
1
vote
3answers
181 views

Is there an iOS app to display several offline raster maps with transparency?

There are several iPhone apps displaying offline maps. Some of them can show custom maps, for instance loaded as MBTiles or sqlite files. Galileo-app does this pretty well. But it is only possible ...
0
votes
0answers
33 views

In Opengeo 4.0.2 suite, enabling labels causes map to show pink screen.

In Opengeo 4.0.2 suite, enabling labels causes map to show pink screen. The map shows up properly if labels are switched off. I am using Opengeo 4.0.2 suite on Ubuntu 13.10 server. How do I ...
0
votes
0answers
104 views

Geoserver tile caching

i have a problem with "tile layers". i want to display my layers in tile layers but i always have a blank page. i'm already displaying them in the "Preview layer" with openlayers and it worked. i ...
0
votes
1answer
59 views

How to determine number of layers in a given .mpk file and then enumerate it using ArcGis Runtime SDK for WPF 10.2

I need to determine number of layers in a given .mpk file and then enumerate it using ArcGis Runtime SDK for WPF 10.2. Can anyone provide me some link or code/snippet..thankyou
0
votes
0answers
25 views

Show the paths but not roadsides and driveways in the line layer

I want to display paths in the woods but the paths are all in One (line) layer that contains all roadsides, pavements, drivvays, but also paths, tractor road and other relevant roads in, and up to the ...
1
vote
1answer
161 views

QGIS Quickly switching overlapping raster images

I'm new to QGIS, and haven't used arcGIS in about 5 years, however I've just seen someone using arcGIS and was able to quickly switch between overlapping rasters when checking registration. The top ...
3
votes
1answer
421 views

Export multiple layers in ArcMap 10.1 and change each layer's source to exported data

A client has requested the MXD and relevant data for a particular map. The file contains over 40 layers across multiple data frames and references multiple geodatabases and shapefiles. Is there a ...
4
votes
1answer
195 views

How can I modify layer order with the QGIS python API [duplicate]

Typically, after a new_layer = addRasterLayer(...) that inserts new_layer before the active layer, I'd like to move it to the top of the table of contents. How to do it? I use an existing QGIS ...
0
votes
0answers
80 views

Crash when editing a layer and when saving in QGIS

When I edit the layers, and its small changes like adding a name (or make it appear in the map), QGIS very often crashes (like for every third or fourth or fifth edit, seldom gets past ten edits ...
1
vote
1answer
25 views

Icons of different layers cover each other

I have converted 6 KML files (including a set of points) into 6 layers by ArcMap 10. For points in each layer, I have considered a special icon with a specific color. I also decreased the size of ...
1
vote
2answers
277 views

How to avoid “Handle bad layers” message when using QGIS Flowmapper plugin?

In QGIS, if I close a project and try to open it a few days later I often get a message that says "Handle bad layers". This is very frustrating because when I open the project various layers will have ...
0
votes
2answers
97 views

CartoDB Vis - Multiple layers mouse interaction?

My map visualization has two layers: 1) A city layer where the cities are represented as standard markers. 2) A county layer underlying the cities which has county level aggregate data. The layer ...
0
votes
1answer
83 views

QGIS 2.0.1 - problems to add layers - encoding?

I have just installed standalone QGIS 2.0.1 on a PC with Windows 8. But, when I open it and try to add layers nothing happens? I browse to find the file I want and click 'open' but it doesn't turn up ...
2
votes
0answers
42 views

Updating Description of MXD Layers

Is there a way to force the update of the Description content in the Properties/General/Description of each feature layer in an MXD? I frequently update metadata for each feature class in ArcCatalog, ...
1
vote
1answer
101 views

Delete Turned Off (Unchecked) Layers from Arcmap with Python

I have about 100 figures that have been updated countless times and a lot of the old data was left in each .mxd but was only turned off (unchecked) and not removed. I would like to remove these ...
3
votes
2answers
189 views

OSM zoom levels correspond to what level of text labels?

I'm using Maperitive to render OSM map data of Mexico City as SVG files, destination Illustrator and then print (on paper, in a book). At different zoom levels, the resulting maps have different ...
2
votes
2answers
128 views

How can I share my own spatial data on an online map?

Note: I am very new in this field! Can I find an open source map that enables me to display an overlay of my own layers? I need to add some text and rectangles for a certain area, but my ...
5
votes
0answers
47 views

What prior art can be cited to refute Apple's claim to have invented Interactive Map? [closed]

In U.S. Patent Application 20130339891 Apple Inc. claims "An interactive capability enables a user to dynamically adjust the content of an electronic map" as well as "Geospatial applications can be ...
0
votes
2answers
74 views

Show only some buildings

How do I show only some buildings? I only need to show 3 cabins in the forrest, but not every house in the whole village around, and the city close by. Maybe some of the symbol buildings in the city ...
3
votes
1answer
222 views

Show alternating contour lines

Is it possible to show only every other counture line? And how do you do that? (Im new to QGIS Lisboa 1.8.0, but even newer to QGIS Dufour 2.0.1, but have used ArcGIS a bit a while ago, and also ...
3
votes
1answer
42 views

qgis2 - hide a layer (or its labels) when another layer is coincident?

I have two road layers - one is a subset of the other, so, there's a lot of overlap. When they are coincident, I see labels from both layers. The 'lower' layer is the thin line road in the SW ...
1
vote
1answer
66 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 ...
1
vote
3answers
163 views

How to prepare a multi-colored vector layer?

I need to present a multi-colored vector layer and something similar to below: I need to prepare the vector layer by making use with the data set available in my database. Inside my database, I ...
0
votes
1answer
49 views

Calculate best area with overlaying multiple layers buffer shapes

I am using QGis and I have a set of 20 layers with buffers. I'm interested in where they overlap most and I want to create a single layer that shows which are the places where they overlap most and ...
0
votes
1answer
82 views

Graduated colouring Voronoi polygons? (QGis)

I've got a huge database of depth points for the whole Irish sea which I'd like to be a nice smooth surface, or at least have a depth value associated with the entire area (i.e. include the ...
0
votes
0answers
62 views

OpenLayers: WMSGetFeatureInfo shouldn't return feature when a layer is hidden

In OpenLayers, I have a map with several layers. I created a control to query the layers and return feature info. var info= new OpenLayers.Control.WMSGetFeatureInfo({ ...
3
votes
3answers
226 views

How to speed up redrawing of layers (from shapefiles) in MXD? [duplicate]

How do I speed up the process of redrawing layers in a MXD? I have already tried reloading and indexing the layers. The layers were created from shapefiles.
0
votes
0answers
59 views

QGIS 2.0.1: Changing layer properties with python console

I'm working on a plugin that will aim to ensure that the following steps either "transparent" to the user with one click :   Creating a table with predefined fields Record in this table in postgis, ...
1
vote
1answer
1k views

Add simple image layers to MapBox / Leaflet?

Is there an easy way to add simple image layers (with no, or very limited, GIS data) to Mapbox and/or Leaflet? Google maps seems to have the ability to add custom layers, simply by attaching the SW ...
0
votes
1answer
148 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 ...
1
vote
1answer
102 views

ArcPad VBscript restrict layer editing

I am attempting to restrict editing on certain layers based on the user log in. Dim objLyr1 Dim objLyr2 Dim objLyr3 Set objLyr1 = Map.Layers("PatchPanel") Set objLyr2 = Map.Layers("wHydrant") Set ...
0
votes
1answer
577 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 ...
1
vote
0answers
55 views

Geoprocessing Ungroups Layers

Is there a fix for this, am I only imagining this, or is it a bug: ArcMAP 10.1 for Desktop Build 3035 on a 64 bit Windows 7 system When I run a geoprocessing task that modifies the input data (such ...
4
votes
1answer
130 views

Is it possible to store a default symbology layer in an arcpy add-in?

Since arcpy is limited in how symbology can be manipulated, I was curious to know if a symbology layer can be stored in an arcpy add-in. Does anyone know if it is possible to store a .lyr file, or ...
1
vote
1answer
626 views

Adding multiple layers in CartoDB using createLayer() not working

Using CartoDB (cartodb.js 3.5.02), it seems like you should be able to add multiple, independent tile layers to an instantiated Google Map. I've tried using createLayer() a number of ways, using both ...
0
votes
0answers
108 views

how do I add attribute features to an attribute table which already exists?

Using Verson 2.0, downloaded as normal. I have an ESRI shapefile of my road map for 2006. I have a paper map of roads for 1969. I want to see what roads have been built between 1969 and 2006 (none ...
0
votes
0answers
37 views

Ignore Transparent Pixels for Bounds Determination

I am displaying an Image using GWT OpenLayers on a map. My Image has transparent pixels and the system which returns my Image returns a footprint that is equal to the image plus the transparent ...
2
votes
1answer
630 views

how to fix greyed out edit button

I created a QGIS map, which I was able to edit (right click on layer and select toggle edit, or use button in tool bar). Having returned to work on the plan, most layers now have this button greyed ...
0
votes
1answer
362 views

How to extract list of layers in MXD using ArcGIS Desktop 9.3.1 and Python 2.5?

I have been trying to extract a list of all the layers in my mxd (Arc9.3.1), using Python 2.5. If I could have the source of the layers too that would be even better... But as long as I can get a list ...
4
votes
1answer
923 views

What is Python equivalent of ModelBuilder's Iterate Feature Selection?

My data consists of two featureclasses: Points = points representing trees Polygons = Polygons representing % canopy area by area. Each polygon in the FC has a % canopy measurement in the ...
1
vote
0answers
153 views

How to add a MSSQL spatial layer using Python?

I'm having difficulty adding a MSSQL spatial data layer using Python. The database is password protected, and I can add the layer without any problems using the built in feature, but I can't make it ...
0
votes
3answers
93 views

Many to Many Efficient Routing

Not sure if this has been posted yet. But I couldn't find any software that can do this yet. I am given a large set of random locations and a set of set office location. I would like to map the ...
0
votes
3answers
241 views

How to symbolize a layer on multiple fields?

I'm working in ArcGIS 10. I have a layer that contains 8 attributes and each one of these fields can be categorized into 3 sub categories. I need to display them on a single map. Update I ...
0
votes
0answers
89 views

Kartograph.js: Conditional styling of each path in a layer

I'm trying to make a web-map with Kartograph.js based on an svg map. I want to fill the paths of a layer based on an attribute. I tried doing it with the accompanying .css file like this: #map svg ...
0
votes
1answer
93 views

Split by attribute automatically on several layers in QGIS

I need to do a 2 stage split by attribute, using QGIS 2.0.1-Dufour. After the first split, I got 30 layers. Is there any way to do the second split automatically? I don't really like the idea to make ...
2
votes
1answer
241 views

How to copy single polygon and paste multiple times to same layer in Arcmap 10?

I'm attempting to copy a single polygon and paste it 113 times to make "parcels" for a condominium building.