Questions tagged [color]
The property possessed by an object of producing different sensations on the eye as a result of the way it reflects or emits light
331
questions
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19 views
TIFF image merge colour distortion
I am trying to merge 4 TIFF files and the resulting merge is coming out with some odd colour distortions. Does anyone know how to resolve this?
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1answer
9 views
Generating a graphic for publication: How to change color and border weight of shapefiles in ArcGIS Pro 2.4.0?
I am trying to generating a graphic for publication. I am using ArcGIS Pro 2.4.0, and I am trying to draw a border around experiment plots using a rectangular shape file. As can be seen in the below ...
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17 views
R nightlights color palette blue to yellow
I would like to plot nighttime light images in R using traditional NASA used color palette from blue to yellow. Does this color palette exists in any package?
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2answers
53 views
Randomly coloring provinces in country map? [closed]
I have created a map of a country in QGIS.
How do I color the province individually ?
Is there a quick way to randomly coloring all the province of a country.
I am using the "...
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0answers
29 views
Customize colors, symbols and point sizes by different attributes using ArcMap
I am using and extremely new to ArcMap.
I have some data with have two major attributes: geological group name, and estimated vegetation coverage classification names. The vegetation classes are ...
2
votes
1answer
49 views
Cannot set the natural color for Sentinel-2 raster data
I'm trying to create a new raster data with nature color (B4-B3-B2) for the left raster data in QGIS 3, however, I failed. This should be similar to the right one.
Both of them were downloaded from ...
1
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1answer
21 views
Applying a Single Gradient Fill Color to a multipart feature
So I have an indicatrix covering a world map for the purpose of illustrating distortions for different projections. I want the circles of the indicatrix to share the same gradient fill color, as ...
3
votes
1answer
84 views
Multi-labelling with different colors in QGIS 3.10
I would like to create a multi-field label based on an expression where the different fields will have different colors.
Using an icon font, this will allow me to get this kind of result (done with ...
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0answers
14 views
Style layers by attribute in AGOL? (Symbolgy by attribute/ color by attribute)
How do I in AGOL set the colors by attribute? aka let the attribute value determine the color of features within a feature layer.
I have an attribute which contains the color values I need for about ...
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1answer
59 views
Scripting color palette to align with corresponding classes from supervised classification in Google Earth Engine
When I display my classification map, the colors don't line up with the variable that I want them to. For example, my forest category is represented as red (instead of my goal color-green), or my ...
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0answers
25 views
ArcGIS Pro .pdf export - Colors are wrong
I am exporting a .pdf map from ArcGIS Pro (2.5) and the coloring is coming out completely different when I open it in in Adobe Acrobat. (Pictures below)
It seems like this is only a problem on my ...
0
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1answer
21 views
PHOTOMETRIC tag not producing expected result
Code takes a netCDF4 file and converts the data to GeoTiff:
import numpy as np, sys
from osgeo import gdal
from osgeo import osr
import netCDF4
f=netCDF4.Dataset("mydata.nc")
time = f.variables["...
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0answers
20 views
Convert 1-band .nc file to GeoTiff with RGB
How can I convert 1-band .nc file to GeoTiff with RGB?
I have tried using gdal translate but it won't let me apply color interp of RGB to the .nc as it has 1 band.
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0answers
30 views
Plotting the third variable in R
I want to plot my trajectories using geom_path, by having the changes of speed (in each trajectory) in colorRampPalette. I have seen such a plot, but I do not know how to make it.
Here is my current ...
1
vote
1answer
26 views
Formatted Text Color Options
I'm trying to see what color options I have for formatted text for arcgis desktop 10.5. Mostly I'm trying to get these colors to work in a legend text string. I know the basic color options:
<CLR ...
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2answers
35 views
Auto colour change after changing polygon geometry using ArcGIS Pro
I am using ArcGIS Pro.
Is it possible to change polygon colour after i change it's geometry?
For example, if there were five vertices, the figure is green, and after i change it to be four vertices ...
2
votes
1answer
33 views
If I selected (highlight) a feature or points would I be able to color that feature as as it is being highlighted?
The points on purple and lightgreen area I want to maintain them reds. The points outside that I want to color them yellow not just the highlighted ones.
How can I do that?
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82 views
Using pyshp to create line shapefiles with color
I am using PyShp to create line shapefile in Python.
w = shapefile.Writer('shapefiles/line')
w.field('name', 'C')
w.line([ [[3,2],[2,6]] ])
w.record('linestring1')
w.close()
Is there a way to ...
1
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2answers
110 views
Change the color of a feature with PyQGIS?
I want to iterate through a field and based on the attributes, assign a color to the feature. I can find how to change colors of a layer, but not for a single feature. Code below.
from PyQt5.QtGui ...
2
votes
1answer
38 views
Adjusting brightness/contrast for XYZ Tile Data
Is there a way to adjust brightness and contrast for XYZ tile data in QGIS 3.4?
Specifically, I'd like to adjust the settings for the Google Imagery Hybrid XYZ tile. I'm running QGIS on Windows 10.
2
votes
1answer
35 views
Outputting colour associated with category in text format
I've written a plugin which randomly generates fill colours for differing categories. I'm wondering if there's a way to iterate through the category renderer and output the RGB colour as text.
I have ...
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0answers
199 views
Merge *.png files into one using GDAL
I built a Python script that downloads tiles from some map service. This service cannot be imported to QGIS as a tile layer so I decided to download tiles directly using requests module. The script ...
0
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1answer
392 views
Change palette color in Google Earth Engine
I've modified this code: https://code.earthengine.google.com/?scriptPath=Examples:User+Interface/Split+Panel but I can't change the maps color pallet
This is the color pallet that I want to use:
var ...
1
vote
2answers
79 views
Mapping RBG color to coordinate possible?
I work with geologists who are trying to figure out how to use Qgis to batch apply colour values to coordinates so that we can visually see differences or patterns.
From the attached photo of soil ...
1
vote
1answer
271 views
Set bar colors on a Google Earth Engine chart
I am trying to define a set of colours by month on a ui.Chart.image.series, however, after adding the .style line, no changes are made. I would like to have a different bar color for each month, the ...
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0answers
47 views
Take color from other layer with data-override/expression
QGIS 3.8, Win. 10. In addition to a question asked earlier, I want to set the color of text-buffers to adapt to the color from another layer in the background. I have a shapeburst-style background (...
2
votes
1answer
54 views
Changing color of columns names in query builder
Does anybody know if it is possible to change the colors of the names of the columns (attributes) when writing a query in QGIS? (e.g. when selecting by expression in the attributes table).
2
votes
6answers
433 views
Rule based coloured background for labeling in QGIS
I am a newbie working on QGIS 3.6 / Windows 10. I need to label a polygon layer which is categorised by colour.
(pls refer to attached pic as a graphical reference)
The labels need to have a ...
0
votes
1answer
58 views
High resolution and reasonable cost RGB satellite images [closed]
I need to obtain high-resolution RGB satellite images with reasonable cost for Pakistan. The objective is to guide tourist on high-resolution GIS maps. Google Earth does not have very high resolution ...
2
votes
0answers
32 views
Selecting annotation by color to correct Annotation Class using ArcPy?
I have some municipal data that was converted into a GIS and all of the address numbers were coded as dimensions in the annotation feature class. There is an annotation class for address, but none of ...
1
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0answers
54 views
Seeking comprehensive information on how to create beautiful and artistic cartography? [closed]
In many circumstances I experienced how powerful maps can be because a key decision maker just enjoys looking at a beautiful representation of facts instead of reading 10 pages of text. I have a ...
5
votes
1answer
74 views
How to create a saved, consistently available value/color key when styling a choropleth map in QGIS? [closed]
I've created a simple choropleth map representing birthplace data for the US, by PUMAs, for a particular shapefile (e.g., the layer shapefile_1):
I've categorized the value for each of the PUMAs ...
2
votes
0answers
49 views
Convert bitmap image to adjacency [closed]
I have a map in a bitmap image format (.bmp) where each region is assigned an RGB colour. What I want is a list of every adjacent region, for every region.
So if region1 is adjacent to region2 and ...
2
votes
0answers
63 views
Unifying color scale of different tiles in Google Earth Engine?
I found some other posts asked the similar questions but in different tools like ArcGIS, GDAL, QGIS etc. What I want to ask is how to do this in GEE.
Now I have removed the bad observation pixels (...
1
vote
1answer
144 views
How to crop raster in R without losing the colors?
I have a 2x3 raster in R, with values 1 to 6.
library(raster)
r <- raster(nrows=3,ncols=2,xmn=0,xmx=2,ymn=0,ymx=3,vals=1:6)
colors <- c('red','orange','yellow','green','blue','purple')
plot(r,...
0
votes
1answer
291 views
GeoServer polygon transparency (SLD style file)
I am trying to add transparency to a set of polygons (city bounds) within a .sld style file for OSM. Please see below:
As you can see the city bounds are overlapping Montana State University. My ...
2
votes
1answer
50 views
Using multiple colors for labelling that depend on values in QGIS?
I would like to do labelling like this (3 rows):
Location_name
Time
People
My csv has 5 features
Location_name Time AM/PM People A/K
Based on the value of "AM/PM", I want the ...
0
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0answers
138 views
Changing color of GeoTIFF using GDAL and Mapbox?
I have a geotiff that I am importing to a mapping software that I want in the color pink. It is currently a white image, and I would like a GDAL option to change the color.
I am using Mapbox, which ...
2
votes
1answer
291 views
QGIS color map format
What is the correct color map format (.txt) for a color map I want to load in the Raster Layer Properties/Symbology menu of QGIS (v. 3.6.0)
3
votes
1answer
160 views
Forcing color ramps to center around zero in QGIS
I have several columns of data that have percentage values. Some are positive and some are negative. In one particular column, the values range from -0.70 to +0.20. The mean value of the column is ...
3
votes
2answers
249 views
Adjacent DEM color matching in QGIS?
I have four 15 arc second resolutions DEM files (15-C.tif, 15-D.tif, 15-I.tif, 15-J.tif) downloaded from viewfinderpanoramas.org. When I input them in QGIS I noticed that the 15-J.tif layer differs a ...
2
votes
2answers
133 views
Commandline tool to change RGB value of GeoTIFF
I would like to change the rgb-value of raster-tiffs from 0,0,0 to 1,1,1.
Is there a commandline-tool that can change the rgb-values of GeoTIFF files?
At the moment I use irfanview to change the ...
2
votes
1answer
338 views
Change color of part of the line in QGIS
Imagine a few km long pipeline. Pipeline consists of 4 types of pipe. Those types are alternating.
0 - 200m A type of pipe go. (Green color)
200 - 230m B type of pipe etc..(RED color)
230 - 380m C ...
2
votes
1answer
62 views
Remove edge styles on polygons
I have multiple polygons aligned next to each other. They are colorfilled with "Graduated" style. I have changed "Stroke style" to "No Pen".
How can I get the hairline between the polygons to ...
3
votes
0answers
107 views
Extracting GeoTIFF colours and adding to equal geometry shapefile
I have the following map in .png-format that I would like to replicate, but I cannot obtain the original data.
The map shows the current water supply vulnerability for local municipalities in South ...
3
votes
2answers
98 views
Giving the same color to different shapefiles in QGIS
I have two shapefile consist of many dots. First shapefile's dot values are between -19.060 and 9.680, second shapefile's dot values are between -13.153 and 11.758.
I want to apply the same color ...
3
votes
1answer
303 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
vote
2answers
443 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 ...
1
vote
1answer
114 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?
3
votes
1answer
288 views
Multi-band raster color model in QGIS. Why RGB (668, 983, 1007) in Uint16 appears green?
I created an RGB Uint16 composite raster in QGIS .
These are band designations:
Band 1 - blue
Band 2 - green
Band 3 - red
When i query value of a pixel that appears green - it shows (B3: 668, B2: ...
