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

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57 views

Symbology Representations in QGIS

Is there a way to create and apply non-destructive symbology to features in QGIS? In ArcGIS, you can create 'representations' of a feature classes symbology, which allows you to make independent ...
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52 views

Possible to create AutoCAD-like grading lines in ArcMap?

I often need to show grading for roads and ditches. This is what the map readers require and what the standard symbology for grading is. These 3D lines can be easily created in AutoCAD civil 3d and ...
3
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191 views

ArcGIS python toolbox: GPFeatureLayer parameter “loses” symbology type

I'm pretty new at ArcGIS python toolboxes. Here is one problem I've been fighting with for a while. I want to create an output layer (GPFeatureLayer) with a specific symbology (GRADUATED_COLORS) and ...
3
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236 views

How to set up graduated colors for a layer using ArcObjects?

I have to render a feature layer with a graduated colors renderer, using the ArcGIS API for Java (or VB, .NET). As the feature layer data is created dynamically using webservices, I don't in advance ...
3
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424 views

QGIS 2.6 Brighton - Graduated Symbols

I can't get graduated symbols to show in QGIS 2.6. This is what I have done. I have two fields of type integer, saved as a shape file which I have tried to import as a shape file and as a secondary ...
3
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119 views

QGIS - assign different colors for SVG markers also in categorial / graduated symbols?

I understand it is possible to customize the color of an SVG marker via param(fill) However, I have to set the color manually, and cannot automatically assign it through categorical or graduated ...
2
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12 views

Using pictures (JPEG) from web as symbol in MapServer 7 mapfile?

Is it possible to configure the mapfile so, that it shows for every point on the map a different picture from the web recognized by an id?
2
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16 views

Graduated symbol class error from QGIS?

For QGIS 2.10.1 Pisa, Win8 I am attempting to plot my data (about 50 points, imported csv, converted to shape file); as graduated by size, divided by natural breaks, 8 classes, link class ...
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21 views

TOC layer symbol changed EVENTS in ArcMap

I want to do something when user changes one of TOC layer's symbol. I am using .NET in arcMap 10.0 . How can it possible with arcobjects ? Please , help. Specially I want to know, Is there any events ...
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38 views

QGIS Nautical Chart Symbols for sector lights

This is I know going to be of limited interest to many of you but I teach navigation and I am working on producing test questions and charts for assessing learners knowledge. My problem is solvable ...
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50 views

Exporting map containing raster layer with vector field symbology ends up with partially rendered symbology from ArcMap?

After exporting a map in ArcMap (ArcGIS 10.3 for Desktop) which contains several raster and vector layers including one raster layer resembling flow direction of ice, the output file (tried JPG, PNG ...
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85 views

Graduated symbols not appearing for all polygons

I'm using ArcGIS 10.2.2. Trying to map some city populations using graduated symbols. Should be simple, but while most of the polygons are being assigned symbols, some aren't. For example, in the ...
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86 views

How to change the symbology of selected features in QGIS

In QGIS selected features are normally highlighted in a different color to draw user’s attention on the selection. The default color can be changed programmatically. As a nice to have my standalone ...
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95 views

How to convert a layer with a symbology using multiple attributes to a KML file using ArcGIS Desktop?

I could use some advice to convert a point feature layer with a symbology that uses multiple attributes (a color-scheme attributed to the percentage of positive malaria cases and a symbol size ...
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187 views

Apply graduated symbology renderer works in Python console but not in standalone script

I use the following PyQGIS script to load a vector layer from a shapefile and apply graduated symbology to it (tried to make it as minimalistic as possible). This works well in the QGIS 2.4 Chugiak ...
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61 views

ArcGIS Model Builder - Loading Tab Reader Parameter

In our office, we got a large set of MapInfo TAB files, and are planning to migrate those data to ArcGIS GDB with the same symbology available in the TAB file. On a individual TAB file to GDB, we can ...
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132 views

Creating symbology by category in python?

I'm trying to create a python script that creates color-coded symbology by county for multiple maps with different data. I've never created a layer file for the purposes of symbology before, but I ...
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171 views

Saving/Loading QGIS style .qml and avoid specified symbology

Is it possible to save QGIS styles without the symbology style? This may seem like a strange question, but I am trying to automatically set the ValueMap widget under layer properties via a plugin for ...
2
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57 views

QGIS strongly offsetted symbols for categorized layers not visible on layer list (layer panel)

I am constructing a symbology for telecom analysis, which so far is mainly point and line features. So far it is working very well except that I have to offset the symbols to be able to avoid ...
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252 views

What is the advantage to using a representation vs a layer file?

I understand that the representation stores the symbology inside of the geodatabase. It creates it's own field for a RuleID. I made a layer file that had 'unique values and many fields' and chose ...
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460 views

How to create good quality picture marker symbols with ArcMAP

I have created a nice clean symbol in Illustrator. After exporting to .emf format and appending to objects in ArcMap the symbol looks terrible (see Attatchment). Has anyone found a way to import good ...
2
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124 views

Write raster with its attribute table and symbology

I am classifying lots of rasters and I'd like to automate the legend creation and symbology displaying for easy manipulation. Here is the kind of raster I'm dealing with: library(raster) r <- ...
2
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56 views

Why do my font choices not appear when setting symbology in ArcGIS

I have noticed this, it seems to be a bug. I will set the typeface for the symbology for one legend/feature class, but as soon as I want to apply it to another feature class the font grays out or is ...
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141 views

Road Symbology Issues

I have preparing road symbology using Arcmap 10.1 version. When I was prepared attribute based symbology as a layer shown on symbols were overlapped. I have attached an example image to show the ...
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288 views

AxSymbologyControl via WindowsFormsHost in WPF (ArcMap Add In Project)

I need a way to offer the user a choice of color ramps for the ClassBreaksRenderer. I came across the AxSymbologyControl which was designed for WinForms. I tried also ESRIs (WinForms) example project ...
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233 views

Symbology levels are ignored in ArcGIS 10

I have a problem migrating from a ArgGIS 9.3 to a 10 geodatabase (both sde and file gdb). The symbology levels stored in the 9.3 database are not transferred. When migrated to ArcGIS 10.0, ...
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174 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 ...
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118 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 ...
2
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281 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 ...
2
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679 views

Implementing custom IRenderer for ArcGis 10.0/WPF

EDIT: Updates in the bottom As a followup to my earlier question, I'm trying to implement custom symbol rendering for my WPF/ArcGIS application. I'm accessing layers that have been published on the ...
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0answers
18 views

Create symbology for new layer using Python (arcpy.mapping)

I have some ArcMap addin that creates new layer and add it into table of content. I need to set up a symbology for the newly created layer based on the attribute table (three differnet values > three ...
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0answers
15 views

Can GML contain symbology?

I know that KML can contain symbology in it. I understand that GML is the open version of it. Can GML contain symbology too?
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19 views

Why is my large DDP document losing symbology in later pages of PDF export?

The map document is 77 pages long and it seems that later pages are losing some symbols for features. The scale isn't changing, so it is not an issue of scale based displays. Any thoughts?
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41 views

Arrows with direction and proportional to attribute

my data looks like this: > main end.station start.staion Freq end.latitude end.longitude end.station 1 359 519 929 40.75510 -73.97499 E 47 St &\nPark Av 2 ...
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19 views

QGIS: layer scale visibility

I need to display a line-type layer differently according to scale. Do I necessarily have to use a rule-based representation and make several different rules (one per scale interval) or is it possible ...
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0answers
23 views

Custom Icon Markers in QGIS

I have a library of .bmp logos that I would like to use to symbolize points in QGIS. Does QGIS only support .svg logos?
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30 views

Styling points with shapes and graduated symbology in QGIS

I have a point vector layer based on a .csv file. I am trying to show categorical data (seasons) and continuous data (catch per unit effort, CPUE) at sampling sites that get revisited. I have used ...
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0answers
14 views

QgsCategorizedSymbolRenderer default ramp colors

I have a plugin and I want to symbology a vector file with some default ramp colors but I see that in graduated symbology is not so easy as in graduated symbology. Is it possible to assign a default ...
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0answers
48 views

How to change default symbol in Categorized symbol renderer (python console) or use different icons as vector layer symbols?

I have a point shapefile in QGIS 2.10 and I want to display one of its fields attributes based on its unique values (I always know that it has 4 unique values and their values so I do not care for the ...
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0answers
37 views

Changing label symbology in ArcPy?

I'm trying to change the default symbol (font, halo etc) for labels of a layer that I am adding to an mxd. Below is what I have so far, but the template layer font style didn't show up in the map. ...
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0answers
42 views

Data dependent override on colour and linewidth of line pattern fill not working after upgrade to QGIS 2.12

I have recently upgraded to QGIS 2.12 which has resulted in a problem with one of my projects, whereby the data dependent override of the line width and colour of a line pattern fill and SVG marker ...
1
vote
0answers
19 views

Specifying rectangle symbol with height/length based on attributes values in mapfile?

I need to specify a rectangle symbol in a mapfile. The symbols should be of varying dimensions based on height/width values stored in a table's attributes. Is it possible to do something as with the ...
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0answers
18 views

ArcGIS Javascript Legend widget does not show full color ramp

Has anyone used the legend widget with raster map services? I have created a GP service that returns raster maps, but the legend is incomplete. The ArcGIS layer properties are shown here, and below ...
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62 views

ArcObjects Style of a symbol chosen with the ISymbolSelector interface

I am trying to store the properties of a SimpleMarkerSymbol symbol selected by the user using the ISymbolSelector interface. I plan to store the size, colour and style number in a file. I can get ...
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0answers
99 views

Map symbolization - style file: compute change for the Label?

Situation: How to get the attributes/values of a field COD in an Attributes Table of a Feature Class (picture attached - attr_table) using another field COD_SYMB (which acts as a key-field) in that ...
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0answers
25 views

Does the display size of a map object in Google Maps affect the [% repeat] value for a symbol on a polyline?

I have two Google map objects on my page: 1) height: 121px; width: auto; (This is the smaller map). 2) height: 770px; width: auto; (This is the larger map). Both of these maps have the same ...
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56 views

Use multiple double attributes to symbolize a line shape in ArcGIS

I need to represent multiple attributes to a line shape. The attribute table already have the fields I need to represent. One of the attributes is the total number of commuters between cities; this ...
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0answers
12 views

Is there a established color convention for US Federal Agencies?

Do US Federal Agencies have a convention for coloring the lands under the jurisdiction of each? For example, BLM lands are often yellow, USFS light green, NPS blue or dark green, etc. I've found this, ...
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30 views

How do I get the default NLCD symbology back after clipping/projecting?

NLCD landcover rasters downloaded from MRLC have default legends and symbology as shown here: http://www.mrlc.gov/nlcd11_leg.php However, when I extract the raster through a mask, or reproject the ...
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69 views

Is there any way to mass rename or import field names in Labels in Symbology?

I need to load an .avl that sets the symbology for me, but I also need to give the unique values their name, which is not what the Symbology->Category->Value Field uses, but another field in that ...