Tagged Questions

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

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1
vote
0answers
435 views

Create a color scale/legend for choropleth map using geotools (or other open source Java library)?

I'm experimenting with choropleth maps using geotools. Is there an easy way to add a color scale to the map (using geotools itself or some other os library)? By a color scale I mean a bar that shows ...
1
vote
1answer
667 views

1-band raster colour table workaround in QGIS

Does anyone know what the workarounds are for the 1-band raster colour table plugin in QGIS? Currently I find it will run once, then crash on the second iteration. The workaround I use is to delete ...
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 ...
2
votes
2answers
414 views

Creating a snapshot in ArcMap of a layer to be use for legend?

I am trying to create a snapshot using FastStone Capture version 5.3 to be use for the legend because it is diffcult to match their color especially is you are using raster or transparent ? How do I ...
2
votes
1answer
616 views

How to save and reload legend settings using Python?

Maybe you can help me with maybe a strange question. I know how to change settings of a legend individually by arcpy (like: Patch, Title, Items, Columns, Frame, Element Size&Position, etc.), but ...
2
votes
2answers
1k views

Problem in loading the legend of MapServer in ArcGIS

I have published a mapserver on my ArcGIS Server 9.3. I am developing a silverlight application using ArcGIS Silverlight API. Now I can load my map into my application and also the list of my layers ...
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 ...
4
votes
1answer
231 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.
0
votes
3answers
587 views

Mapserver + NDVI styling

I'm serving a NDVI coverage via Mapserver. So, one band, float32 values, [-1.0, 1.0]. I want to display the NDVI in greyscale, and generate a legend. I've tried 2 things: Create two dummy classes, ...
0
votes
2answers
4k views

Is there a way of making a legend for your maps in ArcMap?

Finished all my analysis and would like to make a legend to display the data in the map I have
2
votes
3answers
338 views

Using the excludelayer tag in Flex 2.3.1 with a cached service

I'm working on our first Flex server page using the Flex Viewer 2.3.1. The Legend widget works, but I cannot get the excludelayer tag to work. Here's where the problem probably is - it's a cached map ...
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 ...
4
votes
2answers
579 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. ...
11
votes
1answer
587 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 ...
3
votes
2answers
803 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 ...
0
votes
1answer
168 views

NHD Flowline legend colors?

Does Anyone have legend colors for the NHD Flowline that USGS sets colors for theirs ? I'd like to get a copy of their color legend. They can be from their website, brouchure, lyr files or anything ...
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 ...
0
votes
1answer
116 views

d.legend script is not working

I'm using the d.legend script in grass but it is not working. I can only show/hide the legend using the 'add legend' option in the Map Display window in GRASS. I need to make d.legend script to work ...
3
votes
3answers
8k 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?
10
votes
7answers
614 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 ...
4
votes
2answers
912 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 ...
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. ...
1
vote
1answer
222 views

featureclass legend

Is there any way to specify a legend before I attribute a featureclass in ARCMAP 10? I have a featureclass layer that has many thousands of polygons, I have to go through and individually attribute ...
3
votes
1answer
807 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 ...
4
votes
1answer
957 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 ...
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 ...