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

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11
votes
1answer
553 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
605 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
959 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. ...
9
votes
5answers
479 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
1answer
3k 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
3answers
138 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 ...
7
votes
1answer
5k 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
983 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?
5
votes
2answers
282 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
2k 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
718 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
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
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 ...
5
votes
1answer
194 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
261 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 ...
5
votes
0answers
136 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 ...
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
582 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
2answers
851 views

Resequencing Legend Items in Python

I create various layers programmically with Python in ArcMap 10. I can adjust how the layers are sequenced using the arcpy.mapping.MoveLayer command. But I want to have the legend reflect a different ...
4
votes
3answers
109 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
547 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
2answers
754 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 ...
4
votes
3answers
84 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
205 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
334 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
955 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
2answers
251 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
185 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 ...
4
votes
1answer
72 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
1answer
210 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
940 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
204 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
271 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
601 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
435 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
63 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
174 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
3answers
7k 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
130 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 ...
3
votes
1answer
201 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
750 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
1answer
156 views

Is there any way to have the legend text above the symbol and beside it, not just above?

Is there any way to have the legend text above the symbol and beside it, not just above? What i do at present is to cut the end of the text off and insert a label then group them, however i want to ...
3
votes
1answer
618 views

How to create complex legends in Mapserver?

I want to create a color legend on mapserver. It is working but now I have to group several classes together like a heading with a group of color in it and so on. I have 10 such groups of classes. I ...
3
votes
1answer
184 views

Leaflet add and remove legends with layer selection

I'm new to Leaflet/Javascript and have been struggling to get legends a map to show only when a specific layer is selected from the layer control. I have three layers, one of which I would like to ...
3
votes
1answer
162 views

Flip over min/max values in a stretched symbology for raster data

In ArcMap 10.1, we can render a raster in a colour ramp (stretched) symbology to draw a raster layer based on each pixel value. However, the legend for the layer by default starts from the max value ...
3
votes
1answer
737 views

Working with legend patches/symbology in ArcGIS

I am working with a legend in a map from ArcGIS 10.1. The map is used as a template and will be used many times to create different maps. The legend is used to show a soil type and its descriptor: ...
3
votes
2answers
239 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 ...
3
votes
1answer
775 views

Legend text wrapper (ArcGIS)

I'm interested in wrapping long legend text (in ArcGIS 9.3.1) so that the text does not exceed the layout extent. I would like to call the "GetFormattedString" Function within the ...
3
votes
1answer
59 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 ...