The set of conventions, rules, or encoding systems that define how geographic features are represented with symbols on a map.

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1answer
1k 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
2answers
2k views

Are there water/wastewater utility GIS symbols for electronic markers?

I hesitate to ask for standard symbols, but is there a de facto standard symbol(s)? Or a popular set of symbols to use for electronic markers? Our utility will soon start marking with electronic ...
29
votes
5answers
5k views

Curved point-to-point “route maps”

I have recently been looking at airlines web pages that display their routes departing a certain city to all other cities they service. I would like to be able to create similar curved routes between ...
7
votes
6answers
6k views

How do I cluster XY point data? (ArcGIS 9.3)

I have a whole bunch of icons displaying on a map, I want these clustered together as was suggested to me for a different question here... ArcGIS 9.3. How do I increase Picture Marker Symbol ...
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votes
2answers
2k views

ArcGIS 9.3. How do I increase Picture Marker Symbol performance?

I have a layer with 400 point features that display a picture marker symbol on the map. We expect this number to increase a great deal. Unfortunately it's already noticeably slow. This is being ...
4
votes
2answers
455 views

What is the cause and solution of this ArcMap tint band drawing issue?

I installed ArcGIS 10 SP1 last week. My graphics card meets the spec and I'm up to date on drivers. I have a layer of parcels that are tint-banded in the MXD. At some scales, straight lines that ...
5
votes
2answers
704 views

Symbols showing sex of a species in a label in MapInfo

I am trying to indicate the sex of a species using the symbols ♀ and ♂ in MapInfo. I would like the symbols to display in the label of each species point, but I cannot find out how to do this. I had ...
24
votes
5answers
3k views

Are there any international standards for map symbology?

We are going to let our users add points, polylines and polygons to a map. Are there any international standards for map symbology? For example for emergency symbols?
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vote
1answer
337 views

Unwanted Italicization of Symbol Text (ArcMap 9.3.1)?

So I am running in to a problem that has got me stumped. I'm working on a road systems map, and there are a few symbols with text in the middle. The problem is that the text within the badge, ...
1
vote
2answers
1k views

unique value symbolize layers from a lookup table

I need to create a large number of Arcmap layer files (v9.3 or 10), perhaps a hundred, from lookup tables. I don't have to set the symbol patch itself, that can be random, but I do need the value and ...