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

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3answers
739 views

How to place multiple symbols on one polygon centroid?

I am using QGIS for visualizing the health conditions of elderly living in an old age home, some of the elderly have multiple medical device with them and I want to show them on the map. Suppose I ...
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3answers
1k views

How to write SLD rules with data-defined symbol size and color?

I have shapefile with points. They are classified - Graduated colors. I made SLD file with ArcMap2SLDConverter. I have a task to manual edit SLD file to show symbol diameters relating to field Area. ...
1
vote
1answer
241 views

How to edit symbol diameter related to the catchment area?

I have a table with column Catchment area (in km2), and I need to set symbol diameter based on that column. I need to get .sld file so I'm working with uDig but if you know better software for this, I ...
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0answers
673 views

Change the symbol for a single feature in ArcObjects?

Is it possible to change the symbol for a single feature in ArcObjects? If so how? I know it's possible to setup the map symbology for different field values of a feature class, but I'd like to ...
7
votes
3answers
2k views

How to make custom, dynamically generated vector symbols in ArcGIS

I am putting together a map of GPS-enabled vehicles, and I am hoping to display them with custom point symbols that change appearance based on a few attributes (things like velocity, heading, and a ...
3
votes
3answers
2k views

Is it possible to convert ArcGIS 10 styles to version 9.3?

I have a style file (*.style) generated in ArcGIS 10.0. And I need to use symbols from this file on machine with ArcGIS 9.3. Is there some way to convert style file from format 10.0 to 9.3?
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3answers
4k views

Creating symbology for multiple attributes within the same feature class in ArcMap 10

I'm struggling to find a way to take a single point feature class that has multiple attributes that I want as feature layers with unique symbology. Let's call these attributes Depth1 and Depth2. A ...
6
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1answer
1k views

How to create a style file for QGIS from a plain text file?

Using QGIS 1.7. I have a plain text file, which lists 115 rgb values against a map code for a geological map. Viz.: $ head gsv1Msymbology.txt MAPCODE RED GREEN BLUE Oc 143 255 255 WAT 255 255 255 ...
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1answer
3k views

What is the best way to automate the importing of symbology into feature classes in ArcMap 10?

I'm importing several shp files with the same schema using the FeatureClassToGeodatabase tool in Arcpy and during the process I would also like to apply some standard symbology to the feature class. ...
7
votes
2answers
1k views

How to use a field-to-RGB mapping for symbology in QGIS?

Using QGIS version 1.7. I have a plain text file that lists a set of rgb values against a code. I want to use this colour table to colour a polygon layer by mapping one of its attribute fields ...
2
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3answers
2k views

Is it possible to add leaders to point symbols if they overlap?

I've added symbols to one of my point shapefiles, but for several datapoints this has resulted in symbols stacked on top of each other because there are multiple sample types for one sample location ...
13
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3answers
1k views

Best practices for visualising clustered features in web maps?

I'm looking for the best symbol to display clustered features in the ArcGIS Server JS API. I don't like the "fly-out" animated cluster symbol, as used in the Silverlight API clustering or the JS ...
2
votes
1answer
216 views

Standard Style for Infrastructure

Hi: I'm trying to locate or find out if there is a standard style for municipal infrastructure. Specifically Canadian (Provincial BC, AB) standards for symbolizing water, sewer, valves, hydrants ...
7
votes
3answers
2k views

Changing symbology as per scale reference in ArcMap?

I am using ArcMap 10 and I want to display my village parcel as per given scalewise symbology. I have one idea that copy and paste same layer. But my question is that in a single layer, is it ...
2
votes
2answers
2k views

Symbology or Styles

Anyone know where to find me some more symbology or styles that I can use for my ArcMap 9.3.1 ? I have lots of mxd files on my computer and how do I apply all of my symbology or styles turn on ? ...
2
votes
2answers
951 views

Copying Symbology between layers with different numbers of features

I am working on copying a layers symbology to a number of other layers which have the same geometry, table structure etc, etc but not the same number of features. I have a state wide layer and I ...
6
votes
3answers
1k views

How to normalize choropleth maps of census information?

I'm trying to improve on the census-based maps on this site, which shows census values at 5 scales from Collection Districts through to State. Currently the maps show whole numbers (eg total ...
0
votes
1answer
830 views

What's the best way to author SLD files from ArcGIS? [duplicate]

Possible Duplicate: How to edit or convert ArcGIS 10 layer style to a SLD's file. I'd like to be able to create styled layer description (SLD) files for use with GeoServer. I'd like to ...
4
votes
1answer
366 views

Performance of Picture Marker Vs Character Marker (font)

We have a point data type to symbolise. The feature classes can often contain more than 6000 points up to 20000. There are about 30 different symbol catergories to these points. My question is ...
4
votes
2answers
546 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. ...
3
votes
1answer
965 views

In the Symbology Properties of an ArcGIS layer, why is the count sometimes not shown?

Sometimes the count column does populate for me, but most times it does not seem to. I haven't been able to figure out a rhyme or reason to it. There is no definition query or anything out of the ...
11
votes
1answer
552 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 ...
5
votes
2answers
342 views

Symbolizing individual highway network segments in ArcMap

I have a highway layer that I need to style in ArcMap in such a way to differentiate between individual highway sections, ideally using no more than 6-7 distinct colors. Each highway is divided into ...
4
votes
2answers
4k views

Directional Flow Arrows for sewer lines

I am working for the Town of Yadkinville, NC and would like to know how to create a layer of directional flow arrows for sewer lines to be able to turn them on and off at will?
2
votes
2answers
465 views

Different behavior of ArcObjects for different languages

I have the same code in C++ and C# for ArcMap. This code loads a document from disk and trying to get a picture for PictureSimbol object. But in case of C++ error occurs(HRESULT = E_UNEXPECTED ...
6
votes
1answer
3k views

How to apply Mapnik style for OSM data in ArcMAP? [duplicate]

I am loading OpenStreetMap vector data into ArcMAP (using the Download and Symbolize OSM Data tool of ArcGIS Editor for OpenStreetMap 1.1). I'm sure there must be a simple way to apply the ...
3
votes
2answers
2k views

How to quick get all symbols for feature layer with ArcObjects

I have a FeatureLayer and I want to enumerate all the symbols used in it. Simple way - it is to call SymbolByFeature for each features. Something approximately likes: Dim l as IFeatureLayer Dim c as ...
3
votes
2answers
4k views

Change Symbology of layers from within ArcMap

Cheers, In an active Arc Map session - I want to change the symbology of a layer which is repeated multiple times in the mxd. Can I do this? The basic code I have for getting the layers is below. ...
7
votes
2answers
3k views

Modify raster layer display and symbology properties programmatically with arcpy or ArcObjects

I have over 1500 NITF files that I need to be able to modify the layer display and symbology of programmatically from within ArcMap. I need to set the properties outlined in red below: I've looked ...
3
votes
4answers
4k views

How can I symbolize a layer with graduated colors by a date/time field?

I've got a layer of polygons where each has a date associated with it. I want to color the polygons with graduated colors, but I want the colors to start with the newest polygons and fade to the ...
4
votes
3answers
1k views

Are there any well symbols for ArcGIS Silverlight/WPF?

I'm looking for some standard map symbols for a silverlight app. Does anyone know where I could find these? Thanks!
6
votes
3answers
3k views

View vertices in ArcGIS

In ArcGIS (I use version 9.3), is it possible to change the polyline symbology to show vertices? Or do I need to extract the points via Feature Vertices To Points? This becomes a pain if I want to ...
4
votes
4answers
4k views

Symbology of contour lines in ArcMap

I have contour lines with height values from 0 to 1030 (sorted by height 110, 115, 120, 125). Values with in-between number (like 5, 15, 115, 135...) should be grouped and colored with same color, and ...
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vote
3answers
2k views

ArcGIS 9 doesn't recognize ArcGIS 10 .lyr files

I symbolized a parcel shapefile in ArcGIS 10 with about 2 dozen different colors. I need to use this in ArcGIS 9.3 as well, so I saved it as a .lyr file. This works fine in 10. But when I go to 9.3, I ...
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 ...
3
votes
4answers
1k views

Canvec Symbology in Arcgis 10?

Is anyone working on porting the Canvec Symbology toolkit to ArcGIS 10? How would you go about it if you were? The canvec symbology toolkit is comprised of a canvec.style file (which is an ms-access ...
3
votes
1answer
355 views

Is there an international standard with GIS symbols for power distribution objects?

Like I said in title, Im wondering if there is a standard that points out symbols for power distribution objects, power plants etc... Thanks
11
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3answers
954 views

Crime mapping symbology

Are there any standard, publicly available symbol sets for crime mapping? What are their intended applications and their strengths and weaknesses?
7
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4answers
2k views

Symbolising One-to-many relationships

I have a polygon feature class which has various extent areas with a name which is unique I also have a table (in an FGDB) that has the extent names with a score value. But there can be many score ...
5
votes
3answers
260 views

Is there a recomended method for symbolizing inland lakes, streams and rivers in a topographic map?

I produce a lot of maps with inland lakes, rivers and streams overlaid over a dem surface symbolized with a color graduation (green for lows and brown for higher elevations) I also use a ...
1
vote
1answer
353 views

Can I import symbology from an .axl file into ArcMap?

I'm setting up new Arcserver services, and some users would like the symbology in the new services to match the old IMS services. With that in mind, is it possible to either: a) import the symbology ...
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
2answers
1k 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 ...
25
votes
4answers
3k 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
5k 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 ...
2
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
421 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
577 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 ...
23
votes
5answers
2k 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
330 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, ...