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

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18 views

How do you symbolise a 32-bit raster in ArcObjects?

For rasters that are ABOVE 16-bit - you cannot apply a colormap - so what is happening when you symbolise in ArcMap a 32 bit raster, it's certainly possible. I'm trying to emulate this funcitonality ...
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20 views

Using .lyr symbology in ModelBuilder?

I'm trying to set the symbology of a raster output in ModelBuilder of ArcGIS 10.1. I've followed the guidelines by creating the .lyr file and the adding it to the Layer Symbology tab of the Output ...
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1answer
15 views

How can I make a vertical symbol for a point which stands upright on the centroid?

Context: I need to display the location of wind turbines using a symbol from a True-type-font(ttf). The GIS software doesn´t allow me to define offsets, so I need to define a ttf which displays a ...
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1answer
21 views

Using Python Script to change Pie Chart Symbology

I am trying to change the symbology for Pie chart in ArcGIS. I have a feature class which is joined to a table and I will like to symbolized as a pie chart. I will be symbolizing it a lot thus I am ...
0
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1answer
21 views

Accessing “valueField” property of layer's symbology using ArcPy?

This has been really hard to debug, as I had no idea where to look at first, but I have made an attempt to access the "valueField" property of a layer file. This layer file is of the UNIQUE_VALUES ...
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17 views

Vector Layer Symbology Export?

When programmatically creating / saving a QgsVectorLayer - implementation of the ExportSymbology functionality does not seem to exhibit the implied effects. Does such a command not indicate that the ...
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0answers
28 views

CartoDB: cluster circles aren't proportional

I'm trying to visualize thousands of records on a map on CartoDB using the cluster feature but circles with 100 or 1000+ records have the same dimensions. I'd like to have more discrimination in ...
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1answer
47 views

How to create symbol with size and color based on two variables in ArcMap?

In arcmap 10.2 i have a layer that has two attributes: depth and magnitude. Depth should be represented by color: deeper points being lighter and shallower being darker. Magnitude represented by ...
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1answer
24 views

How to display symbols on a Raster in QGIS?

I have a raster file in which each cell has a numeric code which indicates that the cell is directed towards one of its eight neighbours. I am using QGIS to display each of the eight possible codes ...
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16 views

What can POLYCOLOR mean and is there a way to convert to RGB?

It is not for the first time I found in the tables of some data column called POLYCOLOR. Is there any way to figure out what that means and is it somehow convertible to RGB values? If I get it right ...
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2answers
46 views

Proportional Symbols - Custom legend breaks

I mapping the number of Boko Haram victims in each state of Nigeria for several years. I chose to make a proportional symbol maps using the centroid of each state. For a given year, the area of the ...
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0answers
27 views

MOLE options after ArcGIS10.2?

Esri said goodbye to MOLE, so now I am not able to achieve the same results as before, with the layer package which is offered on 10.2 version. Mostly because before I could customize the symbols ...
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1answer
36 views

Accessing advanced symbol levels with python in ArcMap

Does anyone know if it is possible to access the symbolgy levels in ArcGIS10 with python? I have a layer "temp" that I print to a pdf. The symbology is printed correctly but is drawn in the wrong ...
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1answer
44 views

Apply Symbology Layer to a group layers

I have several mxds (located in C:\Project ) that have 250 layers each. All the layers as the same name- "plan" and they all in group layers like that (added picture for example): I try to change ...
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0answers
5 views

Arcobjects Java event on featurelayer symbology change

I am working on an Java AddIn project for ArcMap. I need to find the event when user changes the symbology for a layer added in TOC. So far my best bet is to useIActiveViewEvents class on map, and ...
0
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1answer
51 views

Error in python code for loop using SearchCursor, selectlayerbyattribute, and copyfeatures tools

I am fairly new to python scripting for ArcGIS. I am trying to create maps where each county is selected and then copied into a new layer with only that county's data. Then, I used ApplySymbologyFrom ...
2
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1answer
34 views

Keeping symbology style in a polygon shapefile when converting to KML

I have a polygon shape with 23 classes and have created patterned symbology styles which I will like to have retained when I open in Google earth pro. Is there any how I can achieve this in either ...
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2answers
80 views

arcpy.mapping.ListLayers() without calling current mxd document

my question is how can I use the arcpy.mapping.ListLayers() function without calling the current mxd? I'm hoping to run the python script without having an ArcMap document open. My setsymbology code ...
2
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1answer
34 views

How to reverse color ramp in ArcMap?

I want to reverse the color ramp in ArcMap 10.2. In the example below, I want the red colour to be associated with lower values and the green color with the higher values. Any idea how to do this ...
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0answers
13 views

MapServer MapFile: How Do I Create This Symbol

I have a challenging visualization problem to solve. I am currently rendering a very simple point layer with MapServer - as indicated by the large large blue triangle in my attached image. And that ...
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0answers
22 views

“mapinfo qgis style converter” : error message

I would like convert a big point layer from .Tab toward .QML thanks to the plugin called "mapinfo qgis style converter" . The symbology of my layer is quite complexe (variables of coulours, shape, ...
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0answers
41 views

qgis-bin.exe has stopped working after changing symbol selector?

i am having troubles with QGIS 2.6.1. It crashes when i try to change the symbol selector within each vector layer. If it doesnt crash it seems that the changes i have made in symbol selector do not ...
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0answers
31 views

ArcMap Symbol levels get mixed up in multiscale representations

I have created several representations for a road network on different scales. As many of the roads are displayed as cased lines, I use symbol levels to control the drawing order. I then have saved ...
2
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1answer
47 views

How does the QGIS construct class intervals?

I'm using graduated style of a point layer to assign a colour ramp to symbols (squares). I assigned manual values to class intervals specifying classes to be: 0.60 - 0.80 0.80 - 1.00 That is, in ...
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53 views

Convert mapinfo styles toward qgis styles

Up to now, I has worked with mapinfo. I have a big vector layer (points) with a complex symbology. For several days, I gave up mainfo for qgis. Is there a way to converting my mapinfo files (.tab) ...
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1answer
26 views

QGIS Custom Symbols Group File Location

I am curious as to the location of the symbols group files. I have created numerous custom symbols, as well as symbol groups. I would like to share these with the people I work with. Thank you!
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1answer
47 views

How to use custom marker symbols in CartoDB?

I am new to CartoDB and haven't found a suitable answer to my search. I have a point layer uploaded to CartoDB and want to change the symbology to my own custom symbol - is this possible, and if so, ...
1
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1answer
31 views

Layer Symbology Based on both Category and Quantity?

I am running ArcGIS 10.2.2 Version 10.2.2.3552, using ArcMap. Here's my situation/what I would like to do: I have a layer that has sewer lines. Some are main lines, some are laterals. I would like ...
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1answer
22 views

Adjust Fill style behavior QGIS

Does anyone know how one can change the Fill style option in QGIS? I need to use a diagonal pattern that does exist, but I need to adjust it. I have a cartography specification that defines the ...
2
votes
1answer
68 views

Display bar charts in ArcMap

I am trying to symbolize data as bar charts in ArcMap. I have a feature class with two sets of data, and I want the bar charts next to each other on the map. The problem I am having is that the map ...
1
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1answer
36 views

How to update symbology without loading all symbols into TOC using ArcPy?

I am using ArcMap 10.0 Service pack 5. (government computer, no choice here). I am trying to automate a common mapping task... I have a clipped layer (SoilsClipped - which has maybe 4 or 5 ...
3
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4answers
104 views

How can I transfer ArcGIS custom symbology to another machine?

I created custom symbols on my PC at home using: Layer Properties dialog box > Symbology tab > Advanced > Rotation Now I want to transfer the symbology settings to another machine on campus. I ...
2
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1answer
73 views

Use 2 different symbologies on the same feature QGIS

I have data symbolized with different categories Each category has a field for different symbology style like the table below. Is it possible to visualize the same category of data with in ...
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1answer
34 views

ApplySymbologyFromLayer works in ArcMap but not in python script

So the ApplySymbologyFromLayer_management() tool doesn't seem to like me, at least when I try to use it in a script. I have a Field_Boundary2.lyr file that has a "hollow" fill color and a black ...
0
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1answer
32 views

Is it possible to use the symbology of an already published map service, so as to create a renderer in javascript api?

I have created a map service with fixed symbology. I want to create a graphics layer which will use the same symbology, through a renderer. In other words, I want to use the already existing ...
0
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1answer
32 views

How to indicate polygon vertices with small circles using OpenLayers?

I am using OpenLayers 3 and have more or less implemented everything in my requirements list, except one thing: I am asked to somehow make the polygon rendering indicate the polygon vertices with ...
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0answers
19 views

Can you re number representations in arcmap?

I created a representation and added loaded rule or import symbols but had to delete some. Now the numbers in front of the name of the rule is out of order ( [2],[3],[5],[7]). I know you can change ...
5
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3answers
192 views

How to display two line traffic road map cartographically?

I have two line traffic map. I want to display this maps roads as image below. This images show that when I zoom out from map, roads are showing properly.. And two line road never disappear from map. ...
0
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1answer
18 views

How to prevent symbology reclassification from adding 0s to the Range?

How do I prevent symbology's "Natural Breaks" from automatically changing my range to include multiple 0s after my decimals? Example: Range was originally 1 - 249. I switched to Natural Breaks and the ...
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0answers
17 views

Graduated Symbol Classes Overlap in ArcGIS Online

Searching on GISSE under the arcgis-online tag has come up empty. Using the Aggregate Points analysis tool in ArcGIS Online, I produce a feature layer that I would like to represent with graduated ...
2
votes
1answer
65 views

Symbolising null features in graduated symbology

I have a polygon feature dataset, and an attribute from a different table that I join (one-to-one) within QGIS in order to symbolise the attributes as a choropleth map. However, not all polygon fields ...
2
votes
1answer
75 views

How to scale SVG symbol based on zoom level in QGIS?

I am wondering if there is a way to scale SVG files I have stored as blob in a Spatialite database according to the current zoom level in QGIS. My hope is to have the SVG icon resize itself when the ...
1
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1answer
53 views

Raster statistics - incorrect and apparently arbitrary minimum value

I have projected a raster with gdal as part of an R workflow: gdalwarp -s_srs EPSG:4283 -t_srs EPSG:3577 -r bilinear -multi -tr 1000 1000 -dstnodata -9999 in.tif out.tif When I add out.tif to ...
2
votes
2answers
97 views

Adding new fields to shapefile alters appearance of borders in QGIS?

I am using QGIS 2.6.0-Brighton and I am trying to add a custom field to my layer made from a shapefile of Italian provinces; everything seems fine when I create a categorized views using region codes, ...
2
votes
1answer
40 views

Using a colour wheel as a colour ramp for displaying directional data in Arcmap

I would like to define a colour ramp for displaying direction data in a 'smooth' fashion. So for data in degrees there wouldn't be a jump in colour between 359 and 0 degrees. It seems to me a colour ...
0
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1answer
56 views

Apply Symbology from Layer in ModelBuilder?

I have a model in ModelBuilder that takes a shapefile, runs some tools on it, adds it to a geodatabase, applies symbology from a layer file and converts it to a KMZ. It all works fine except for the ...
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1answer
53 views

Search layer in MXDs

I work on arcview 10.3 and i try to find layer called "ways" in several mxds. i try this code but it does not work. anyone know how to do it?: import arcpy,os,sys,string import arcpy.mapping from ...
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0answers
26 views

Representing a line feature layer with Markersymbols in ArcGIS JS API

I am setting a scale dependant renderer for a Featurelayer (geometry type =line) so that in smaller scale it can represented as a marker symbols and in higher scale with a Line symbols. When I tried ...
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2answers
64 views

Symbolising multiple lines in the same location

I would like to produce maps showing multiple lines that are in the same location. This poses the problem that the lines overlap each other making one of multiple lines visible when displayed in a ...
3
votes
0answers
70 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 ...