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Questions tagged [symbology]

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

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14 views

Missing option to apply symbology by Categories in ArcGIS

I have a layer file with several thousand records and a lot of columns. I'm trying to map this by breaking out values from one of the columns into categories. But I don't see an option for Categories ...
2
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2answers
142 views

Apply Line Pattern Fill to LineStrings?

I am trying to print out a network map using black/white hatching patterns, similar to Black/white hatching pattern fills in QGis but for Lines. Is there some trick I can use?
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1answer
18 views

Adjusting symbology in layer file?

I have a layer file for a geology layer containing attributes for "Age", "Rock Type" and "L_Code". The layer has symbology defined using the "L_Code" attribute. But I want the same symbology applied ...
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1answer
26 views

Invert legend values for raster in QGIS 3.4.6

The legend in the TOC for a raster layer ( > 1 million cells with continuous data) in my view might look like this: The values go from low (above) to high (down). Is there a way to show the values ...
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1answer
15 views

Creating symbol with size and color based on two variables (one text, one numeric) in ArcMap?

I have a shapefile in which I need the symbology to be both size graduated and to represent another variable (say for example, "yes" or "no"), and another variable that is a numeric amount (say, from ...
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1answer
11 views

How to set vector symbol outline properties in pyqgis 3?

I have a polygon vector layer and I want to style it within a processing script. Part of the code creates a categorized symbology for my layer but I cannot find a reference online on how to access the ...
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0answers
16 views

Positioning labels beside symbol (graduated symbols)? [closed]

How do I put/position the labels beside the symbols automatically? The label stands for: 1st line: number of people 2nd line: corresponding percentage 3rd line: location These labels are from the ...
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1answer
52 views

Selection Symbology in QGIS

In ArcMap, I can change the selection outline from the default RGB (0, 255, 255) to whatever color I want by going to Selection > Selection Options > Selection Tools Settings. In the example below, I ...
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1answer
24 views

Setting style for categorized vector in PyQGIS?

I'm writing a plugin in QGIS3 which produces a vector file from a thresholded raster (i.e. polygons all have a value of 1 or 0). So far so good. I'd now like to load it in QGIS and display the ...
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1answer
41 views

Changing symbology of the selection tool

How do I change the way selected polygons look. Instead of being highlighted in yellow, I would like to have them with a red border and no fill color.
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2answers
47 views

QGIS 3 how to customize line dash symbology

I want to keep the same line width but specify a much longer dash. The symbology controls in QGIS 3 have changed significantly from 2.X, so the many answers re: line symbology control for QGIS 2.X ...
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0answers
19 views

Getting ArcMap layer with symbologyType = “UNIQUE_VALUES”?

I am trying to write an automated mapping script to set new categories for a layer on each iteration, however I have encountered a problem. If I understand it correctly may layer's symbologyType ...
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23 views

Apply .lyr Symbology To Layer Names That Meet if Condition

I am trying to create a script that applies a layer style from .lyr file to layers in my table of contents that meet a certain criteria. The criteria being the layer name must contain string of "x". ...
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16 views

Feature Symbol Disappears from Legend when Exporting to PDF in ArcMap 10.5

I'm using one of the built-in symbols for a group of features on my map. When I export the map to PDF, the symbol appears on the map but disappears from the legend. I've already tried every setting ...
2
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1answer
55 views

Translating OSM 'osmc:symbol' into symbol geometry with QGIS

OpenStreetMap uses specific tags to describe route symbols that are used as waymarker (https://wiki.openstreetmap.org/wiki/Key:osmc:symbol). For example: "osmc:symbol"=>"red:white:red_dot" I ...
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0answers
16 views

Can I symbolize based on the syntax in a description attribute colum?

I got a kmz-file from an organization and the attribute table has a colum 'description' with a synthax that holds import information (such as date built, water source, village etc.) instead of a ...
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0answers
33 views

Disconnect between raster symbology in Layers Panel and Layer Properties (QGIS 3)

I'm working on a Python plugin for QGIS that applies a customised colorRampItemList to a single band raster. The result displays correctly on the map and in the Layers Panel but incorrectly in the ...
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0answers
28 views

“bending” lines to a predetermined shape

I have a dataset with AIS-transponder information. A AIS-transponder is a digital system onboard a ship that sends/receives information to/from the vessels within range of the VHF transceiver in a ...
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2answers
34 views

Export symbology to attribute table

I created symbology classes of many polylines in ArcMap 10.2. I want to know the class that each polyline belongs to (maybe written in a new field on the attribute table? or by exporting the symbology ...
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1answer
58 views

Showing only one feature per Report page in QGIS 3

The gift of Reports in QGIS is a massive step in the right direction. I have set up a department template for my team to use and it looks great! Right now, I am attempting to setup a report that will ...
3
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1answer
78 views

Fill color and outline color with the same value [duplicate]

I made a categorized symbology on a shapefile, but the color value of outline (stroke color) is different than the color of fill color option. How can I ensure that both colors are the same for fill ...
1
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1answer
26 views

Applying same symbology to different DEMs?

I am using ArcScene and ran into this problem where I downloaded a couple of neighboring/bordering DEMs(in BIL format), imported them into the scene (as separate entities) and applied Base Heights so ...
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2answers
36 views

Applying color ramp to gradient fill in ArcMap?

I know that you cannot apply color ramps to the outline of a polygon, so essentially what I want to do is add a gradient fill with the inner color of the polygon being "no color", and then apply a ...
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0answers
36 views

Symbology or style to separate layers

I have a layer i.e. vegetation, i can split this layer in different colors using rules or categories i.e. light green = grass, darkgreen = trees. Then the colors appear 'nested the layer. When i make ...
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0answers
35 views

Applying graduated color symbology using arcpy.mapping?

I am trying to apply a graduated color symbology from one layer to another. The script adds a layer to an mxd but foes not apply the symbology from the symbology layer. Can someone tell me what I am ...
2
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1answer
90 views

Label layer as symbol colors with QGIS 3

Is it possible to label a layer using same colors as the categorized symbology of that layer? It is possible using the Rule-based labeling, but it can be difficult for a layer with many categories ...
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1answer
32 views

Applying one color to many layers in QGIS 3?

I've been playing around with my QGIS Bonn (3.2.3) and I have a question regarding styles/symbology/colours. Is it possible in QGIS to set one colour/style to multiple layers at once?
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1answer
182 views

QGIS: use geometry from different layer in symbology expression

I have a project with multiple layers. The purple dots are from a pointfile with the symbology-expression: z($geometry)> '14.5'. (so it only displays a purple dot when the Z-value is more than 14....
2
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1answer
64 views

How to create circles around points

I'm new to QGIS so please bear with me. I'm using QGIS 3.6. So I imported a CSV-file with latitude longitude coordinates (WGS 84), created markers and set them to have different colors (to show ...
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1answer
46 views

Changing marker shape to circles in Leaflet

I was wondering how to change the default marker shape in a Leaflet map to circles $.ajax("data/StatesPopulation.geojson", { dataType: "json", success: function(response){ ...
4
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1answer
40 views

Get round numbers using Natural Breaks (Jenks) classification

In ArcMap, is there an easier way to get more round numbers when using the Natural Breaks (Jenks) classification in the symbology tab? For example, in the image ebelow I'd want the classes to be 5-140,...
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0answers
33 views

Raster output symbology differs in tool vs. Python

I have a bunch old DOQQs from the 90's that are projected in NAD27, giving them the black angled collar you see in the image. I am trying to set the collar to null by running SetNull on Value = 0. If ...
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2answers
47 views

Displaying rainbow colors for multiple polygon layers in ArcMap?

I am working with ArcMap and I have a series (20) layers - polygon lines in a group. I would like to ask you a way to color (not manually) all the lines with a rainbow color palette. The lines are map ...
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1answer
75 views

Structural geology SVG symbol library

Is there a public source with an SVG library of symbols for structural geology mapping in QGIS ?
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1answer
18 views

Changing thickness of lines in GraduatedColorsSymbology using arcpy

I have been using the following code (works) to update the symbology of a layer in ArcGIS. Now, in addition to this, i need to change the thickness of the lines previously symbolized by using ...
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0answers
16 views

Change raster symbology in Google Earth

I have a raster with discrete terrain classes that I want to visualize in Google Earth (Pro). However, when I import the .tif, Google Earth gives it a black-white stretched symbology, as opposed to ...
2
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0answers
97 views

QGIS 3 - Wrong legend for datadefined size points layer

I am trying to generate a proportional symbol symbology using data defined symbol size in a QGIS 3 python plugin. Here is the working code : # Symbol creation symbolLayer = ...
5
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1answer
131 views

QGIS Gratuated Symbology gives differents results on every classification with Natural Breaks (Jenks)

When styling a polygon layer using the Graduated styling and the Natural Breaks (Jenks) mode, QGIS is classifying the data with different values. So every time I click on "Classify" the values are ...
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2answers
52 views

Keep the symbol in the Layout Map but do not show it on the Legend?

I am trying to find a solution to not display the name and the symbol on the Legend on my ArcMap Layout but I do want to keep the symbol in the Layout . Here is the screenshot I have ArcGIS Desktop ...
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1answer
50 views

Geoserver : how to use getlegendgraphic to avoid duplicate symbols in legend because of rules

I am currently doing a master's internship in a town hall. I am working on improving the interactive map of the municipality where I work; it uses the Geoserver platform to host the layers and their ...
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1answer
46 views

QGis 3.4 Categorized Symbology: Overlapping objects

I have a point layer with categorized symbology One object is a big point and one is a smaller one. How do I change which one is displayed in front of the other one?
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2answers
47 views

How to display more than one attribute in symbology in ArcGIS Pro?

I want to color code temperature and represent precipitation by dot density in the same map. How can I do this in ArcGIS Pro?
2
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1answer
45 views

Changing representation overrides to attribute driven symbology for migration to ArcGIS Pro

We currently use a lot of symbology representations in our map production workflows in ArcMap and are considering moving to ArcGIS Pro, which does not support representations. Many of them will be ok ...
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1answer
35 views

Use relation to apply same colour to children feature

I'm looking for a function with field calculator in a symbology context to apply the colour of parents features to the children with transparency.
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1answer
118 views

Blinking symbology in QGIS on database values

I made a geopackage to plan Aids-to-Navigation for maritime environments. In my database I have a few fields that describe the character of the lights that are to be placed on the planned A-to-N's. ...
3
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1answer
173 views

QGIS change legend symbol size independent of map

I'm using QGIS 2.18. The screenshot below shows the print composer. At the moment, the only way I can reduce the size of symbols in the print composer is to reduce the size of the symbol on the map. ...
2
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1answer
172 views

What does this symbol mean?

I have just used the shape tool to create an elliptical buffer around a point. However after doing this, within my layers table I have the symbol seen within the figure below (seen in red box). Note, ...
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0answers
29 views

How do Joins & Relates in layer file and Layer Properties work?

I'm using ArcMap 10.5. I set up symbology for a feature class based on joined attributes from a table in the same file geodatabase. I want to be able to apply the same set-up in different geodatabases ...
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0answers
58 views

Visualizing signal strength of mobile towers

I have a list of latitude and longitude along with signal strength obtained from mobile towers in a certain region. I have all the data in CSV format. In total, I have 4 CSV files. I have mapped the ...
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0answers
23 views

Symbol Categories for OGC WFS in ArcGIS Portal

When add WFS layers to a map in ArcGIS Portal the symbology for OGC WFS appears to be restricted to a single symbol. Where as there is a somewhat more extensive set of options for ESRI 'Feature ...