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

learn more… | top users | synonyms (1)

4
votes
1answer
657 views

How to transfer styles from QGIS to ArcGIS?

We have a QGIS project that has symbols for a lot of different lines. Data comes from a geodatabase that is accessible to both QGIS and ArcGIS. We now want to use the symbology of the QGIS project to ...
2
votes
1answer
887 views

Saving vector layer with specific symbology

I am creating a polygon feature layer with soil classes. I need to share this layer with some colleagues and I need the layer to maintain the color ramp I have created. Is there any specific format ...
5
votes
1answer
949 views

Managing symbology in Feature Classes

I'm using an enterprise db to store my data and I'm writing a python tool that allows me to interact with that data in ArcMap. However, all my layers someone have "OTHER" for the symbologyType (not ...
2
votes
2answers
584 views

Arcmap point symbol/marker size, How it works

I am trying to figure out how the size of markers in arcgis works. I understand that a square marker set to 1 pt is 1 pt for specific scale. but when I import emf or font, How does the change size ...
1
vote
1answer
257 views

Set symbols for a layer in ArcMap with two classes (greater than zero and less than zero)

I need to symbolize features in a feature class with two colors thus defining what features have positive (>0) and negative (<0) values. The only two ways I found this to be possible are: To use a ...
1
vote
0answers
33 views

QGIS rule-based point style responding to number of co-located objects? [duplicate]

I am mapping the geolocated location information for 5.5k Twitter profiles as point data. Many of them have the same location ie "London, UK" meaning that they return identical coordinates. On the map ...
2
votes
1answer
155 views

How to change the colormap in QGIS 2.01?

I decided to say goodbye to ArcGIS and switch to QGIS which is nice, but it has given me a hard time to handle various problems. Few months ago, I made a map using QGIS 1.8 with a relief background ...
2
votes
2answers
233 views

It is possible to use different fields for symbology and legend labeling in QGIS?

[Edit : working with Quantum GIS version 2.0.1-Dufour] I wonder if it is possible to use some field to set the symbology and some other to label the map. [Edit 1 : I mean labeling the legend in the ...
1
vote
1answer
288 views

arcpy symbology colors changing on RefreshActiveView()

I have a problem that I'm not sure is functionality not built into arcpy or I'm just doing something wrong. I'm using arcpy.mapping.UpdateLayer() to apply symbology to a layer, but afterwards some ...
1
vote
0answers
217 views

Style manager not working to batch style group in QGIS 2.0.1

I am trying to apply batch styling to a group of layers using the style manager by setting the conditions, but the symbology does not seem to be applying. This is considering the multiqml plugin is ...
4
votes
2answers
1k views

Importing .svg images to use as Symbols in ArcMap 10.1

I have several .svg files that I want to use as symbols in ArcMap 10.1. However, I do not see any import feature or the sort to use these .svg pictures. Thanks
3
votes
1answer
385 views

Symbology for Open Street Map [OSM] Data in MapInfo [tab] format

I have shapefiles for the different SOM layers which I have translated into TABs but I am now trying to symbolise them in a similar style to OSM online. Is there a way to easily apply the OSM ...
4
votes
1answer
284 views

How to read BMP file location of image used for picture symbol in LYR file?

I have a number of *.lyr files which are pointing to various .bmp files which are used as marker symbols in ArcGIS for Desktop 10.1 I was wondering if there is a way to extract the file paths of the ...
2
votes
1answer
334 views

QGIS 2.0 - 2.4: Color Ramps Missing?

Since QGIS 2.0.1 the default color ramps and styling symbols seem to disappear for some users. For me, this started with QGIS 2.0.1 and still consists with 2.4. I can neither choose Smybols when ...
4
votes
1answer
529 views

Are there any icons for GIS mapping? [duplicate]

I am trying to find alternative symbology for GIS maps and web apps I occasionally produce. Esri has done a great job collecting and categorizing thousands of symbols, markers, line and polygon ...
1
vote
2answers
122 views

QGis Print Composer: layer symbology not displayed

Exactly the same as this problem from way back, only I've had this from 1.8.0 to present (2.1.0 master). Yay, symbols: Boo: no symbols, cue MS Paint: Anyone know why this might be or have the ...
1
vote
2answers
202 views

ArcGIS javascript API Printing: fuzzy result

I created a real simple web app, copied from samples actually, to try figuring out something about the Print Dijit. Here's the thing. When you click print here there are two major concers with the ...
5
votes
2answers
258 views

Maps with charts of representative symbols

How would the type of map symbology illustrated here be typically described? Specifically where symbology is used to represent arbitrary quantities of phenomena, and these being charted together ...
1
vote
1answer
63 views

How to symbolize a large amount of points with lots of color

I have an interactive map with a very large amount of different points. Depending on user selection, various points are shown or not-shown. These points are divided into several categories, each ...
4
votes
1answer
902 views

How to display marker somewhere in polygon without converting polygons to points, while maintaining dynamic legend, and then export map?

The following seems like a straightforward requirement because I recall ArcInfo Workstation having an ARCPLOT command called POLYGONMARKERS available to do the display part 20 years ago. Yesterday I ...
2
votes
1answer
364 views

Change label next to symbol in TOC

I'm trying to write a script to change the label next to the symbol in the TOC so it appears in the legend. Arcpy has a way to change the name of the layer, but I can't seem to find a way to change ...
1
vote
2answers
269 views

Read layer symbology class color with ArcPy

I am using ArcPy within ArcGIS 10.1 and attempting to read symbology from a *.lyr file created by a raster dataset within ArcMap. My goal is to be able read out the RGB (color) values assigned to the ...
3
votes
1answer
320 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 ...
1
vote
0answers
138 views

Calculate values to represent bus route attribute

I'm working with bus routes and looking for a way to represent some values in this system. I want each street to be represented by thickness based on value returned in SUM or COUNT. I don't have big ...
4
votes
2answers
299 views

Wetlands Symbol for QGIS point pattern fill

Is there a marker available anywhere for point pattern fill that resembles the standard wetlands symbol used in USGS topographic and other maps? Any good standard symbol that will be intuitively ...
2
votes
1answer
114 views

Data loads with preset symbology in ArcMap

I have a set of points in a file gdb. When I load them in ArcMap or ArcCatalog, the data displays with unique value symbology based on a field rather than "single symbol". How do I get the data to ...
0
votes
1answer
182 views

Modify Map Service Symbology via Esri JavaScript API

I have a JavaScript application built on the Esri JavaScript API that is consuming a feature service and a tiled map service from ArcGIS Online. I developed a widget that allows the user to change ...
0
votes
1answer
99 views

How to standardise colour-value graduations across multiple maps

In QGIS I have a vector dataset (imported csv vector + csvt) spanning multiple years, and a shape file shape which is essentially a grid. By joining the csv file with the shape file I can apply a ...
2
votes
1answer
459 views

Why does ArcGIS for Desktop legend not always show symbol as desired?

I have a problem with the legends in the ArcMap because the patch does not show the marker symbol inside it well. Whenever, I move the legend it changes but never to what I want for every patch. I ...
1
vote
0answers
175 views

Sources for German Standardized Symbols in QGIS

German Original: Gibt es für QGIS eine Phytonerweiterung "Planzeichenverordnung"? Zur Bearbeitung von Flächennutzungsplänen und Bebauungsplänen kommt man an den Planzeichen nicht herum. ...
0
votes
1answer
227 views

How to change rasterlayer color?

I have rasterdataset in gdb. I create layer from this rasterdataset. private static void CreateLayer() { ... IRasterLayer rlMosaicDataset = new RasterLayer(); ...
1
vote
1answer
103 views

Resizing symbol changes its position on the map

I have character symbol for my point feature class from ESRI AMFM Water - Unicode 117 with offset Y:10,7 and size 36. At that moment it is placed perfectly as it is shown on a first printscreen. ...
2
votes
1answer
189 views

Which Graduated Symbology to use in QGIS

I am trying to map demographics data for a county in the UK based upon a combination of Census data. I want to compare the the averages for the county alone to the averages of the UK as a whole and ...
6
votes
1answer
638 views

ArcGIS Symbology Transparency

Using ArcGIS 10.1, I am interested in symbolizing a series of polylines to generate a pseudo-heatmap like one of the answers to this question. The essence of the solution idea is to symbolize each ...
1
vote
1answer
404 views

Geoserver optional symbology with variable substitution in SLD

I am trying to write an SLD that optionally takes a symbology for a PolygonSymbolizer and I can't work out how to do default to no symbology if the symbology env parameter is not set. I have used the ...
0
votes
0answers
569 views

Create .avl file Table

i would like to create a table of the .avl file i use as my symbology layer but cant come up with a way to do it in arcmap 10. Any thoughts?
0
votes
1answer
154 views

Mapfile SYMBOLSCALEDENOM and SIZEUNITS (miles) 200: Keep SIZEUNITS while circles change size based on zoom

I've been trying to understand how to keep the SIZEUNITS at 200 while the circles appropriately adjust based on zoom level. Thought I had this working properly but turns out I did not. You can see ...
0
votes
1answer
715 views

ArcGIS Attribute table appears empty until features are selected

I have a multiple layers that show features in the data frame and the layers are editable and labeled, but when you open the attribute table for these layers, it's empty. The only way to get the ...
1
vote
0answers
89 views

Is it possible to use USGS .shd files in QGIS?

Has anyone successfully used QGIS with US Geological Survey shd files to map geology - specifically to display colors and geological symbols (dip/strike etc) stored in a USGS supplied shd file. ...
3
votes
1answer
553 views

How to add complex Emergency Symbology (TrueType fonts) to QGIS?

In other packages I would simply ensure the TrueType font (+.ttf) was loaded on the operating system and it would be available for use. QGIS seems to rely on making your own. The symbols I wish to ...
1
vote
1answer
240 views

How to create “two-dimensional” color ramps in QGIS?

Is there a way in QGIS to create a "two-dimensional" color ramp for the graduated symbology; i.e. a color ramp that determines a color based on two different attributes? My situation is that I want to ...
1
vote
1answer
40 views

How can i display the color of my labels into the content table?

The thing is that i need to display labels based on colors but without the symbol. In this case i'm working with points in Arcgis 10 and the maps needs to display only labels with color-based ...
0
votes
1answer
71 views

Using an image file as a placemark in qgis

I am making a map of sports clubs in London. I have each club's crest as image files (tiff) and want to make the placemark symbol using these images. I know it's possible to upload images in the SVG ...
1
vote
0answers
140 views

WMS: point “pointer” symbol with offset - getFeatureInfo search area slight mismatch

I'd like to ask what ways there might be to adjust a point's getFeatureInfo search area so that it matches a "pointer" (i.e slightly offset) symbol. We are running GeoServer 2.2.0 (part of an Opengeo ...
1
vote
0answers
65 views

About symbol position

I have to draw in ArcGis a graph which has the end points of each segment with a circle. The circle has to be unique at the same point when two or more end points are coincident. I’m using the font ...
3
votes
1answer
147 views

Symbology for Unique Values with Domain

I'm wondering if there is a workaround to this. I want to symbolize a feature class categorically by unique values. The field that I'm doing this on has about 5 unique values. I also have a coded ...
2
votes
1answer
133 views

QGIS link values longer than the links?

Can you please help me to correct link rapresentation when the thickness exceed the links. In the image you can see the value on two consecutive links that generate a bad view. I think it depends on ...
11
votes
1answer
2k views

How to create desire lines in QGIS?

How can I show the flow coming from an Origin-Destination matrix as desire lines? I need a result like the one in the picture below. I need to scale them proportionally to its value (coming from a ...
1
vote
1answer
881 views

Color ramp in multiple attributes symbology (Arcmap)

I am trying to use the "multiple attributes" symbology tool in Arcmap 10. I would like to divide my data in 2 categories. For each categories, I would like to display a color ramp. I read ESRI's ...
0
votes
2answers
978 views

Issues with datasets when custom SLD loaded into geoserver

I have created my SLD's in QGIS and want to use them in Geoserver. I have imported and validated them without any problems but when I try to view the data using Layer Preview --> OpenLayers-->Go it ...