The description of the types of features included in a map, usually displayed in the map layout.

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11
votes
1answer
609 views

Is there a “correct” way to order legend items (high-low or low-high)?

When you symbolise a layer in ArcMap, the symbols are ordered from low value to high value by default. Is that necessarily "correct"? I've never officially studied cartography - is there a convention ...
10
votes
7answers
620 views

What is the point of standard symbology?

There are several questions on the site asking for standard symbology to represent markers of specific types of objects (i.e. Power Distribution, Crime Mapping, Emergency Symbols, Lakes). What is the ...
10
votes
7answers
1k views

Repetitive automated mapping: which platform?

I could give a lot of examples, but imagine you have do eg a study in 10 different locations and have to generate a lot of maps with the same layout, legend. Maps can contain vector and raster data. ...
10
votes
1answer
4k views

Raster legend in R: how to colour specific values?

I have an elevation model plotted in R r <- raster("example.dem") plot(r, col = topo.colors(20)) Some of the values are below sea level (0), and I'd like to have those display in red. How can ...
9
votes
5answers
495 views

What would be a good symbol for the map legend itself?

I am reformatting a mobile web map. Many of our users are equipped with mobile phones rather than large tablets, so screen real estate is at a premium. I've decided to remove the legend from default ...
9
votes
3answers
208 views

Setting symbol descriptions of ArcMap layout legends from table?

ArcMap has the ability to show an extended description for each item in the symbol list. How can I populate that property from a table? The goal is to avoid having to edit each symbol one by one in ...
8
votes
1answer
8k views

How to Add/Remove Legend with Leaflet Layers Control?

I have two overlays http://02d0c8c.netsolhost.com/dev/lcb_census_layers3.html that can be turned on and off with a Layer Control. I’d like the legend for each layer to turn on/off along with the ...
6
votes
3answers
1k views

How to group elements in QGIS legend side by side?

I would like to edit the legend in my map so that the entries of two polygons will appear together, i.e. the two entries in the legend should be displayed appear as "Study area and possible study ...
6
votes
2answers
151 views

Including labels in map legend and point symbology of ArcGIS for Desktop?

I've been using gis.stackexchange for some time already and time has come for me to ask my first question here. I have point feature class with habitat types. There are two important attribute ...
6
votes
2answers
1k views

How to create a vertical scale bar in ArcMap?

Wondering if anyone out there knows how to create a vertical scale bar in ArcMap? With text I can adjust the angle. Is this possible with a scale bar as well?
6
votes
2answers
3k views

Placing label designs in the legend - Is it possible in ArcGIS 9.3.1?

I'm working in ArcGIS 9.3.1 and apart from "regular" slayers with symbology, I have a few layers which I do not show their symbol on the map, but only their label (for example: cities layer in which ...
6
votes
1answer
189 views

Duplicate items in the legend

I have recently created a web map that uses the legend snippet from the ESRI JavaScript API website. https://developers.arcgis.com/en/jav...et_legend.html It works great for the most part, but has ...
5
votes
2answers
415 views

How to remove white gap in ArcMap Legend

I have a legend created in ArcMap 10.1 which appears to be generating an abnormal white gap to the right of the legend content. Any tips on how to possibly remove this would be appreciated.
5
votes
3answers
959 views

Resequencing Legend Items using ArcPy?

I create various layers programmatically using ArcPy. I can adjust how the layers are sequenced using the arcpy.mapping.MoveLayer command. However, I want to have the legend reflect a different ...
5
votes
2answers
1k views

Annoying little line in color ramp legends - how do I remove it?

This was never a problem with ArcGIS 9 but it appears that in 10.0 Esri has added small horizontal lines as the default when including color ramps in legends. I want to get rid of these annoying ...
5
votes
3answers
3k views

Is it possible to have a dynamic table in a data driven page environment?

I am creating a map series that has many polygons per sheet. There is annotation for the polygons however some polygons are very small with no annotation for them (annotation would completely hide a ...
5
votes
2answers
909 views

Legend showing info for world map

I'm using ArcGIS 10.1 API for JavaScript. I'm showing dynamic map service layer containing 8 layers and I want to show legend for the currently visible layer (only 1 layer is visible at a time). The ...
5
votes
1answer
246 views

QGIS - Changing Legend Size with Python

In QGIS, I use the python console to generate image files through the composer. In particular, I am creating a map with a legend. The legend is too big. It occupies about 1/8 of the image. I would ...
5
votes
1answer
289 views

Legend of a raster map with categorical data

I would like to plot a raster containing 4 different values (1) with a categorical text legend describing the categories such as 2 but with colour boxes. I've tried using legend such as : legend( ...
5
votes
1answer
1k views

Automate export of ArcMap legends

I've been building legends for my javascript websites that use 9.3.1 services. I know there's the ESRI legend tool for older services but I don't feel that it does a good job of producing legend ...
5
votes
1answer
302 views

How do you format the legend in Geoserver when using GetLegendGraphic?

I'm new to the world of GIS and geoserver so sorry if I'm asking an obvious or simple question. I'm using GetLegendGraphic to create a legend for a raster layer on the server, as it stands it looks ...
4
votes
4answers
2k views

What's the difference between TOC and legend, _really_?

Like many folks here, I have played ESRI FlexViewer for quite a while. I couldn't help noticing there were still two widgets, one for TOC and the other for legend. It looks to me TOC is a layer tree ...
4
votes
2answers
705 views

How do you make map styles NOT appear in a legend?

I am using GeoServer to serve up OSM data. I am making use of the GetLegendGraphic command, but I do not want some of my styles to appear in the legend (for example, the styles that are ONLY for text ...
4
votes
3answers
120 views

Alternative layperson-friendly names for 'Legend'?

I am making a mobile mapping app that has a button that displays a legend. Because my legend is initially hidden from view, it is really important the text I put in the button that displays the ...
4
votes
2answers
609 views

Controlling “Fill Properties” in ArcGIS, so that that symbols are visible in the legend

I use marker fill symbols in my legend in ArcView 10, in order to identify different habitats, and frequently have to increase the separation of the symbols in order to make the map more readable. ...
4
votes
4answers
510 views

Manually classifying graduated data outside of range in ArcGIS

I have two shapefiles representing grids with values that are symbolized with graduated colors, shown below: You can see that the two shapefiles encompass similar ranges of data, but assign ...
4
votes
1answer
54 views

Legend items to appear / disappear simultaneaously with Layer turned on/off in Layer Control

I have a number of layers that can be turned on and off with a Layer Control. I’d like the description of each layer to show in the legend if it's turned on. And disappear again as soon as the layer ...
4
votes
1answer
385 views

How to create leaflet legend for points

I have points like this in a leaflet map. The points come originally from a GeoJSON file and I used L.circleMarker to convert them to circles. How can I create a legend for these points? Based on ...
4
votes
1answer
227 views

How to save space in the legend and write the layer name besides the symbol?

I'm starting using QGIS to make a project for university and I am with a problem on configuring legends on Print Composer. The thing is I want the text of my legend to appear after the ...
4
votes
1answer
350 views

Can I create a legend of a map that I had get from a WMS?

Can I create a legend of a map that I had get from a WMS? Can I create a legend of a raster map with Qgis version 1.7.4, or only with the 1.8 version?
4
votes
1answer
1k views

Legend: Can I force long layer names to multiple lines based on a specified legend width?

Do to various limitations I almost always create static (graphic) legends but I do have the occasional map where impeccable cartography is secondary to functionality hence a dynamic legend is ...
4
votes
1answer
357 views

Continuous color band for a raster legend in QGIS composer legend

I'm looking for a way to insert continuous colour legend for a raster layer. I managed to create discrete symbols with values along the bar, but I would like to have a continuous bar with some values ...
4
votes
2answers
384 views

How to create new legend using ArcObjects?

I am trying to add simple legend to the map. I wrote some simple test code below to see what happens but it did not work. var map = activeView.FocusMap; IGraphicsContainer ...
4
votes
1answer
107 views

Avoiding Legends too large to display in ArcGIS message from ArcGIS for Server WMS service?

I have created a WMS on ArcGIS for Server 10.2 with a polygon layer which contains a unique value renderer with 4 categories. The resulting legend item can be called via service call, which responds ...
4
votes
1answer
82 views

Automatic selection of legend object in QGIS

I'am using the Corine Land Cover data for a projet. There is around 40 types of land use in this database. In my print composer with my scale (1:20 000) I neve have more than 10 type of land use. I ...
4
votes
2answers
284 views

Is there a Legend Limiter in QGIS?

Is there in QGIS a function or a plugin that works similar to Legend Limiter in ArcGIS? The attribute I want to show in my legend has many possible values, I want my legend to only show those values ...
4
votes
1answer
248 views

How to sort entries in raster legend?

How do I reorder the Value field in a raster? There is no up or down button in it.
4
votes
1answer
967 views

Changing the attribute behind a legend without changing the symbology

I have a geology layer with a very large legend that was painstakingly created based on a geological code. I now have a new attribute which is a friendly description for each code and I would like ...
4
votes
0answers
257 views

Make Graph (Data Management), Changing item names in legend

I'm having python produce a multi-series graph. How do you change the series name in the legend, the default being Vertical Bar, Vertical Bar1, Vertical Bar2.... Thanks for the help ...
4
votes
0answers
328 views

How to automatically format the legend labels? in QGIS

I have to do 10 maps (for a start) with "style" -> "graduate" with quantile mode. I need to format the label of the different ranges so that the legend looks comprehensible: Instead of having 1.0000 ...
3
votes
2answers
704 views

Making a Map with a Legend as a .pdf Without a White Background

I have a shapefile of United States counties. I also have an Excel file of the share of the black population in each county. I'd like to make a map of this using GIS. (Before you say that there are ...
3
votes
1answer
888 views

How to allow for multiple lines in legend?

How can I force the description text in my legend to occupy more than one line? This is basically the same question as asked before. However, I want to use Categories/Unique values and not ...
3
votes
1answer
104 views

Italicizing scientific names in a legend

I am trying to Italicize a scientific name in my legend (ArcMap 10.2). I can not figure out how to Italicize one word only without having the rest of the description being italicized as well. Is it ...
3
votes
2answers
266 views

Different legend properties with ArcGIS API for JavaScript

I have a map template that I use to display a variety of feature layers and dynamic layers. I have found a snippet of code to add the legend to my map: //add the legend dojo.connect(myMap, ...
3
votes
2answers
1k views

How to set proportional value in legend?

I have a GIS table with traffic flows.The thickness is proportional to the traffic value and I'd like to have a little legend with 3 links proportional to setted value (eg: link1 proportional to 100 ...
3
votes
3answers
9k views

Renaming legend items in ArcGIS for Desktop?

Can someone please tell if it is possible to rename legend items in the map layout in ArcGIS for Desktop? If yes, how can I do it?
3
votes
1answer
65 views

What's the QGIS Legend Format Syntax to label percentage values?

I asked a question about formatting legend text a while back and I'm happy to see the issue has been solved in QGIS 2.6: How to remove trailing zeros from QGIS Graduated Style Class labels? But I'm ...
3
votes
1answer
282 views

Semi-circle representation in legend - ArcGIS!

I have a little problem that needs solving. How to represent the legend in ArcMap as in the picture above? Or as semi-circle instead of complete circles?
3
votes
2answers
841 views

Changing Names in TOC Doesn't Update Legend Properly

This is related to an ArcMap add-in I coded up this past week. I'm trying to rename a layer in ArcMap and have the legend refresh properly. The renaming part is working fine, however I cannot get the ...
3
votes
2answers
92 views

How to improve legend spacing for ESRI ArcGIS map

I am using ArcGIS 10.1 and am trying to achieve a fairly uniform amount of white space between the first four legend items and am having difficulties pulling this off. All four items are separate ...