Tagged Questions

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

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1
vote
1answer
164 views

How to add a custom SymbolLayerV2 to a Vectorlayer in QGIS

I'm trying to add a symbolLayer with a line-decoration (line-arrow) to a vectorlayer of linestrings. what i am trying at the moment is to create a new layer and set it's QgsLineSymbol with a list of ...
3
votes
1answer
297 views

MapServer Symbol with Two Colours

I'd like to symbolise a point dataset with a square (or circle) using two colours. This is useful for displaying values collected on both sides of a road (for example). I created two symbols, a ...
4
votes
3answers
3k views

Assign symbology to multiple layers in one operation?

Is it possible to assign the same symbol to multiple layers of the same geometry type within an ArcMap document in one operation? For example, I was hoping to: Select multiple layers in the TOC ...
3
votes
2answers
316 views

Looking for qml specification

Where I can find qml specification which is used for store symbology information in QGIS? Try to googe it - no result.
3
votes
1answer
805 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: ...
11
votes
4answers
9k views

Is there a SVG symbol library for qgis?

Im currently using default simple symbol capabilities or dingbat fonts for point objects. Is there maybe a SVG symbol library for qgis that is a bit more extensive than that which is included? I've ...
1
vote
1answer
1k views

Is there a simple way to create a new custom vector marker symbol for ArcMap?

I would like to create a set of custom marker symbols for environmental sampling locations. I need there to be "vector" marker symbols not picture symbols. I've tried picture marker symbols and there ...
3
votes
1answer
124 views

Is the ArcMap style database format available somewhere?

The *.style files are MS Access databases where each style type is a table. The table has one binary column where the actual style is written. Is this binary format available? I would like to import ...
1
vote
1answer
2k views

Exporting Symbology from ArcGIS for Desktop to Microstation or QGIS?

I am using ArcGIS 10.1 for Desktop and trying to figure out how to export my symbols of elements in ArcGIS to CAD or QGIS readable format. The problem is, that I can export symbology to a Style, or ...
4
votes
2answers
295 views

Symbolizing Layers in PostGIS

I have a number of vectors (points, lines and polygons) loaded into PostGIS (not QGIS Server). I would like to provide a colour schema based on attribute values which is saved as a default. What I ...
1
vote
1answer
148 views

Symbology for specific values

I want to apply a symbology scheme for the final layer of my model. Rules are - All negative - Symbol A 0 - Symbol B All positive symbol C unknown - symbol D I am not sure how I can define these ...
4
votes
1answer
685 views

How to customize legend icons in QGIS?

Under layers in QGIS shapefile polygon layers always seem to be denoted by right angled polygons which translates to the map legend in Composer. Is there any way to change the outline to a more ...
1
vote
0answers
345 views

Stats problem, QGIS heatmap [closed]

I am new to QGIS 1.8 and have been trying to make a heatmap. From what I can tell, the reason I am not getting the results I want is that the max value of the raster is erroneously measured at 2. ...
1
vote
4answers
4k views

Prevent drawing of overlapping point symbols - ArcGIS Server/Javascript API

Is there any way in ArcGIS to prevent symbols from being drawn when they overlap each other? I know this is possible for Labels using Placement Properties/Label Weight, but I can't seem to find ...
5
votes
2answers
1k views

ArcMap10: Symbology of Overlapping Polygons (Oil & Gas)

I am mapping an area where there are a lot of overlapping features because of certain Oil & Gas wells being drilled within the same geographic area, but to different depths and maintained by ...
3
votes
1answer
176 views

Setting Center Point of Pixmap Symbol for Mapserver

It seems like all the Mapserver documentation on changing the center-point of a symbol only deals with TYPE 'vector' symbols. I have pixmap symbol (the standard looking Google marker image thingy) ...
2
votes
1answer
2k views

offsetting symbology position in arcgis 10

My data of polylines has lots of attributes to be rendered with a symbology, I made it such that each attribute of interest would be a layer. I would like to display each of these layers at the same ...
2
votes
0answers
152 views

Symbol Level in ArcGIS 9: 'Broken' look of symbols, how to resolve

I am using symbol levels in ArcMap to style roads so that I have a banded feel. My problem is that at intersections and sharp turns, the cartography gives a broken effect in the road. How can this be ...
5
votes
3answers
2k views

Program to create EMF that conserves transparency

What open source tools allow for the creation of EMFs that conserve transparency in ArcMap? I tried VeryPDF and Any DWG to Image Converter, neither on actually gave me a vector file that provided ...
6
votes
2answers
845 views

How to display an arrow pointing to a specific bearing in QGIS

I have a number of point features which contain an attribute I call "bearing" and another one called "slope". Each point has a bearing between 0 to 359 degrees. And the slope is either "+15" or "-15", ...
4
votes
1answer
4k views

How to I create and Import marker symbols (or 'Style References') in ArcMap 10?

I work with many different federal lands all of which can be associated with iconic logos (think National Park Service, National Wildlife Refuge System, etc.). I'd like to create a 'Style Reference' ...
4
votes
1answer
119 views

Symbology issue with feature class limited by domain

I added a field to a feature class in order to maintain symbology from the original KML file (this is a new question following up on this one). The new field is limited to three options by a domain. ...
8
votes
2answers
1k views

Trouble with graduated symbols after joining shapefile with csv file

I have successfully joined data from a csv file to a shapefile in QGIS but for some reason I am having trouble symbolizing my data. I want to use a graduated symbology however this option is not ...
5
votes
1answer
1k views

How do you symbolize a feature class layer in ArcMap 10 based on one attribute's value and then another attribute's value?

I currently have a point feature class that has a couple of attributes that I want to use to symbolize its layer. One of the attributes is called ExceedsTolerance, which either has "Y" or "N" for its ...
1
vote
0answers
524 views

Symbol rotation by using rotation-field [closed]

I want to rotate my symbols using the rotation-field in my atribute-table. After choosing the rotationfield, my symbols become invisible (the text is still there). What happend? Thank you! Martin
23
votes
5answers
2k views

Coloring thousands of polygons so each is distinct from its neighbors?

I am using ArcGIS 10, and I have layers of the 2010 Census blocks, block groups, and tracts. There are thousands of polygons in these layers. I want to color them so that each is distinct from its ...
3
votes
1answer
642 views

How to create mapping application with user input to dynamically weight/shade map layers

Does anyone know of any examples of web-apps that allow user-input to change variable weights used to calculate symbology? My organization is looking to build a dynamic mapping application and while ...
2
votes
2answers
234 views

Is there any swamps/marshes symbol using Quantum GIS?

I am having hard time to find nature symbols for polygons. Any tips to find more symbol (any plugins?)
2
votes
2answers
826 views

Multiple Maps with Styles not working in OpenLayers

I have created 2 maps(within 2 in a same page) along with their respective style maps. Both maps are having vector layers along with "LineString" geometry... added into them. Both style maps are ...
2
votes
1answer
590 views

QGIS adding or removing values in the style tab (layer properties)

I'm new to QGIS and have recently been testing the software as my org plan to migrate from ArcGIS to QGIS in the near future. I often use the 'Add values', 'Remove values' and the group values ...
5
votes
1answer
229 views

How to visually join river to lake in QGIS?

I have two shapefiles, one is for landuse (which contains forests, and also lakes), and another one for rivers. When I set the both water types to have outlines, they are not joined nicely - they ...
14
votes
1answer
484 views

Hand drawn sketchy symbology styles for GIS software

Often times in planning projects, a hand drawn, sketchy look is desirable in order to convey the preliminary nature of a project. Is anyone aware of any utilities/plugins for desktop GIS software ...
1
vote
1answer
297 views

need to show multiple symbols for one point

I am working on a state map of parks with campsites. I want to show symbols for handicap access, tent camping, backpack camping, winter camping, rv camping. I have used a symbol for handicap but it ...
3
votes
1answer
681 views

How to randomize colors by class in QGIS new symbology?

As a new user of QGIS, one of the tasks I frequently perform is creating a layer where polygons are colored by class, classified by some nominal field in the attribute table. I have developed a habit ...
3
votes
2answers
565 views

How to have different annotations for the same feature?

I've been given a dataset that has two different annotations set for a single feature which I can flip between. See below screenshot which allows me to set either a blue or red leader line for the ...
8
votes
1answer
2k views

Is there a line symbology that also shows vertices?

Is there such a thing as a line/vertices symbology? If not a workaround? In some situations, particularly when editing, I would like to see my lines as well as all the vertices similar to the effect I ...
2
votes
0answers
487 views

No file is created when I choose 'Save style …' in layer properties

First of all, I create a layer using the Add Delimited Text Layer plugin. The layer contains longitudinal and latitudinal data and a number that is assigned to each data point. When using a graduated ...
2
votes
0answers
102 views

Symbolizing Layers from a PostGIS Database to many Client Computers

I was hoping someone could help with a symbolizing issue. I have a PostGIS database on a server with a number of layers. The layers of a series of polygons, lines and points that all share the same ...
4
votes
3answers
173 views

Where can I find Specifications for Canadian National Topographic Map series?

At one time the Natural Resources Canada had the specifications for the National Topographic Series (NTS) maps online at http://www.nrcan.gc.ca/earth-sciences/cartospecs. It included things like the ...
3
votes
2answers
2k views

Customizing label features using arcpy

I have a script that creates symbology for a polyline (contours) and then adds it to a .mxd file. My problem is that it picks the “FontName” as the default field to label on the map (see attached ...
4
votes
3answers
449 views

Examples of Creative Cartography

I am looking for some examples of creative cartographic output. I am planning for something like a mixture of cartography, graphic design and spatial information. The output will be initially in ...
1
vote
2answers
626 views

How to: Conditional Symbology in ArcMap

I'm in charge of a database that contains property information. I would like to symbolize parcels of land that we have a 'written agreement' with the owner differently than parcels that we do not ...
6
votes
2answers
1k views

Printable Esri symbol sets, a.k.a. style references

Does anyone know of good printable documents of the as-shipped Esri symbol sets, also called Style References? The new with Arcgis 10 ability to search symbol sets is a great boon, but one can still ...
2
votes
2answers
620 views

OpenLayers Combines Rules and StyleMap/SelectFeature?

I'm using GeoServer, OpenLayers and WFS features. For one layer, I managed to set either rules to display according to a field or SelectFeature with a styleMap to highlight features when the mouse is ...
2
votes
0answers
221 views

Recalculate Quantile Breakpoints in CalculateField_management loop?

I have a program that iteratively replaces a temp field where I choose a certain symbology (color ramp and quantile color break methodology) with a few other fields from a join. The program works in ...
1
vote
1answer
1k views

How to automatically export multiple maps with quantile symbology?

I am a relatively new ArcGIS user and I have a question about automating a tedious join/symbology classification/export operation. I have a very simple shapefile to which I join a bunch of fields. I ...
0
votes
1answer
190 views

Is the Heatmap Colorramp uniform across different rasters for ArcGIS?

SO i have about 16 rasters spanning the same extent and containing the same variable. I use the display symbology in ArcGIS to generate a stretched Color Ramp which is the heatmap i want. As the ...
3
votes
0answers
258 views

Cartographic Representations Load Rather Than Feature Symbology [closed]

We use ArcSDE to allow multiple users (both in my office and elsewhere) to access feature classes that my office maintains. We also use cartographic representations for many of our feature classes. ...
1
vote
0answers
226 views

How to handle multipoint symbology catalogue (as in mil2525c, tactical graphics appendix b)

Is there a general format (standards based) to store a vector based drawing description for multipoint symbology (means having several anchor points reflecting symbol point <-> geographic point ...
10
votes
1answer
383 views

What is the best way to represent bridges using a point vector layer in QGIS?

I'm working on a hiking/biking maps of trails in the woods which sometimes have bridges that need to be shown on the map. I'm trying to figure out the best way to capture and represent them using QGIS ...