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

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170 views

How can I create individual directional point symbols in MapInfo?

I have a point tab file where one of the attributes is a 0-360 direction. I want to create an arrow symbol for each point with the arrow pointing in the direction listed for that point in the table. ...
3
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0answers
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 ...
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1answer
25 views

recognising “any date” in symbology?

Could anyone tell me how to select a date in the Symbology > Categories > Value field to express symbology for any cells that contain a date rather than having to add every date as a field to define ...
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0answers
127 views

How to change symbol size in QGIS map composer legend?

I need to set an identical size to several symbols inside a QGIS map composer legend. The 'Symbol' menu in the Legend properties allows to set a height and width but this has no effect on the size of ...
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0answers
85 views

Rotating point by Angle in field using ArcMap?

I'm using ArcGIS 10.3 for Desktop and I created the marker symbol in ArcMap. I added this symbol to end of the line. I want to add a line perpendicular to the axis of this symbol. I added the ...
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1answer
75 views

draw Distributions Maps (double circles) in ArcGIS 10.1

How can I draw Distributions Maps (double circles) in ArcGIS 10.1 ? like this: This map drawn in CorelDraw,it is shows the number of schools and the number of students in each Province (the circle ...
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31 views

What are the rectangular black markers shown in the roads of Google maps?

I'm doing some image processing to quantify the connectivity of London's roads. I'm not a geographer or map-expert and I would like to know what are the black rectangular nodes/markers in this map. ...
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2answers
125 views

How do I programmatically access a feature's symbol property in a schematic layer?

I am building a simple app that changes the size of the symbol of the selected feature. Is this possible? Here is a simple case for a selected feature: public void onClick(){ IFeature spliceClosure ...
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1answer
41 views

How to fix hatched symbol in polygons?

I want to create polygons which contain the hatch in this picture. Diagonals must intersect in the middle of squares. But when I change scale, the intersection moves. How can I fix the intersection? ...
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2answers
42 views

Specifying alternate symbology for print vs screen

Is there a way to specify an alternate symbology for print output in ArcMap (as opposed to what is currently on-screen? I am thinking along the lines of the functionality offered by CSS. For ...
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1answer
116 views

Is there an equivalent of “Not <Null>” in symbology categories with unique values, many fields

I would like to symbolise based on 2 date fields (d1,d2) in a layer. I would like to be able to have 3 different symbols: d2 is NOT null d1 is null AND d2 is null dl is NOT null AND d2 is null Is ...
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1answer
348 views

Grouping values after Unique symbology classification in ArcGIS for Desktop?

I have a layer that I am using the unique values, many fields symbology category for but I have two different values that I would like to have displayed with the same symbol and label for that symbol ...
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31 views

Downloading ArcGIS Online symbology to ArcGIS Desktop? [duplicate]

How do I maintain the symbology of geospatial data that I download from online sources directly to ArcGIS Desktop 10.2 ? I downloaded the data at: ...
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1answer
70 views

Layer symbology is not applied in layer to KMZ

I have created a tool in modelbuilder. I use the make feature layer tool to create my layer. I right click on the layer and select a symbology. I run my tool and I can see that my symbology is applied ...
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54 views

How to recover from deleting the symbolid of a arcgis annotation feature class?

I have arcgis 10.1 (arcinfo license) and I am using a versionned database (arcsde) with SQL Server. I have accidentally deleted the symbolid of one of my annotation feature classes. All annotations ...
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2answers
200 views

Zonal histogram for each region (row) in a polygon (table) with python script

I have DEM.tif (symbology uses equale interval - 100m) and a polygon file (regions.shp) with many regions (names are defined in 'reg_name' column). I would like to use Zonal Histogram to produce ...
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1answer
59 views

Graduated values in symbology based on specific attribute in QGIS

I'm trying to solve the problem I've raised up in here.. I've rearranged the attribute table that looks like this: Important to notice is that the field "gruppo" is composed by 2 unique ...
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0answers
175 views

SVG Symbols not showing up in QGIS

I have made sure the SVG path is set and that the path has SVG files: Settings->Options->System->SVG Path > "C:\OSGeo4W64\apps\qgis\svg" In Layer Properties > Style Manager > Marker ...
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3answers
3k views

Importing SVG symbols into QGIS

I've downloaded the SVG icon pack here: https://www.mapbox.com/maki/ How do I import these symbols into QGIS? As far as I can tell I need an .XML defining each symbol. Also using the Import from ...
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1answer
58 views

QGIS Categorized Symbology based on joined table

I am trying to create categorized symbology for a data layer. The column that I would like to base the categories on is a result of a table join. For some reason it isn't working. All of my polygons ...
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2answers
127 views

Is it possible to copy a graduated scale from a polygon to a point layer in QGIS?

I have a polygon layer (represented by cells) and a point layer. I've used the graduated symbology with the polygon layer. Now I'd like to export this graduated scale to the point layer. The field of ...
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0answers
133 views

Update Layer Symbology based on 1 field with changing data

I am running ArcGIS 10.2.2 Version 10.2.2.3552, using ArcMap. I have quite a big task here and before i attempt it i want to know if it is even possible. I've looked up some similar questions on ...
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1answer
168 views

How To Use Ampersand (&) Symbol For a Label In Symbology 10.2?

I am using unique values to symbolize my data. I am changing the labels as needed so they are reflected in my table of contents. I want to label one category "Oil & Gas". However when I use the ...
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0answers
97 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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605 views

How to use python in arcgis to create new layer from selection and export into individual maps

I am trying to create county level maps by looping through a master file for each county. However, I get an error message when I try to run the code. I'm not sure what is wrong with my code and I ...
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1answer
230 views

Saving Feature Class Symbology into a Layer or Object to apply to another Feature Class

I am creating a tool to automate a data standardization process. Part of this process is saving the feature class (variable "filename") as a layer file, projecting it into another coordinate system ...
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31 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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55 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
32 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
143 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 ...
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1answer
87 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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161 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
103 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
2k 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
42 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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0answers
41 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
291 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
93 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
190 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
277 views

Cause of ERROR 000732: Input Layer: Dataset plan does not exist or is not supported?

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
30 views

Arcobjects 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
344 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
256 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
2k 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
1k 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
42 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
357 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
112 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
93 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 ...
3
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1answer
364 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) ...