The property possessed by an object of producing different sensations on the eye as a result of the way it reflects or emits light

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1answer
45 views

Color gradients to show direction in polylines

I am referring to this very useful hack to change the color gradient of buffered polygons in order to show direction (with a gradient from red to green, for example) hack The only problem is that ...
0
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0answers
31 views

Cartodb: Linking social data to road color scheme

I am recreating this "smelly maps" project on cartodb. I'd like to create symbology on roads (IE: color roads red,blue,green,yellow) based on the information I am receiving on social media. View ...
4
votes
0answers
30 views

QGIS Color text labels the same color as the feature [duplicate]

Using QGIS 2.12.1 on Ubuntu 14.04 Desktop. What I have is a layer where each feature is a different color. I also want to label each feature but I want the label colors to match the feature colors. I ...
0
votes
1answer
30 views

NDVI colour scheme for ArcGIS

Does anyone have a download link for the NDVI colour scheme to use in ArcGIS for Desktop? I am looking for MODIS mod13 data and cannot find an appropriate colour scheme in the programme.
2
votes
1answer
25 views

Displaying colored traces and waypoints

Goal: display map with few routes, which have colored segments. Also displays few waypoints with text + gives option to download few gpx routes and additional text. I see that gpx format has ...
1
vote
1answer
31 views

Change the ArcMap background from white to blue (i.e the sea)

Say I have an image like the map below, how can I change the white to blue, to represent that this is the ocean? It is not part of the shape file itself, so I cannot use symbology.
0
votes
1answer
40 views

Printing ArcMap layers in black and white?

I am working in ArcMap 10.1. I would like to print a select few layers in black and white and have one or two layers print in color? Can this be done? If so how?
2
votes
0answers
27 views

Random color ramp issue

I have one set of polygons and one set of points sharing a common attribute (value 0-503). When applying style with new random color ramp (Categorized) the first set of polygons is displayed ...
4
votes
2answers
54 views

Manually selecting colors for different polygons within layer in ArcMap?

There is a polygon layer with several polygons. They are displayed with some colour which can be changed simultaneously for all of them. Is there a way to manually select several polygons (without ...
4
votes
1answer
31 views

Trouble saving graduated color style in Spatialite db in QGIS

When I attempt to save a style with graduated colors for a vector layer in a Spatialite db, I receive the following error: Error looking for style. The query was logged I had success saving ...
2
votes
1answer
148 views

How to transfer saved colors from computer to computer?

I have a ton of colors saved on the color palette and I was wondering how to transfer this color palette from a machine using QGIS 1.10 to a machine using QGIS 1.12.
2
votes
2answers
73 views

Regarding Landsat 8 QA image color

As par the USGS page explaining the 8 bit quality image in following link: http://landsat.usgs.gov/LandsatLookImages.php Water is represented by bit 3 [Translated to color range (8 -15)] and Snow/ ...
0
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0answers
17 views

Changing color of individual parcels in CityEngine?

How do I change the color of individual parcels (i.e. specific section of a layer) using CGA codes in CityEngine? I have 4 sections within my layer and I need to change the color so that each one ...
0
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0answers
16 views

How to ApplySymbologyFromLayer but autogenerate unique color?

I am trying to write a script that will allow me to change all the layers within a selected group layer to a particular symbology. For example, we often want to change our point data to all display ...
1
vote
0answers
26 views

Create a Geotiff with different colors

I have a geotiff raster image. I have estracted the WritableRaster, the envelope, and the gridsampleDimension I need to create a new geotiff using Geotools. GridCoverageFactory gcf = new ...
0
votes
1answer
48 views

Importing World Map image, color issues?

I am having a hard time finding a world relief map with "lighter" ocean colors that will actually display as such in Arc. This is the image I download from the web but this is how it displays in ...
0
votes
1answer
26 views

arcpy: read color value of shapefile loaded in ArcGIS Desktop

I've got various polyline shapefiles loaded in ArcGIS, each using the default line style with different colors. For a python addin I'm working on I would like to use arcpy to read the RGB value of ...
10
votes
3answers
295 views

How to set transparency per polygon in a shapfile in QGIS?

How to set transparency per polygon in a shapfile in QGIS? For example: a polygon with field "value" = 1 should be fully transparent whereas field with field "value" = 0.4 should have a 40% ...
0
votes
1answer
45 views

Mapserver label background colour

I'm a totally newbie in Mapserver. I'm using mapserver 6.0.3. I have managed to label some lines but I cannot create a background colour for the labels. Using QGIS 2.10 I got something near to what ...
2
votes
2answers
32 views

Colouring three individual attributes in point layer using QGIS?

I am new to QGIS and am learning the expressions function. I would like to know how to independently colour three separate attributes on a point layer as below:
0
votes
0answers
34 views

Change single patch color in geopandas

Using this map of NYC I'd like to change Manhattan to be bright blue. But when I change the individual patch color of Manhattan all the other patch colors change too. This was unexpected to me. How ...
3
votes
1answer
73 views

QGIS 2.10- symbology - Using BOTH size and colour to represent 2 pieces of information on single point

I want the colour of the point to represent value from data column x (eg. rating from 1-5) and SIMULTANEOUSLY the size of the point to represent value from data column y (eg. Number of ratings ...
0
votes
1answer
64 views

How do I color XY coordinates with different colors in ArcGIS for Desktop?

I have added XY coordinates on map layers in ArcMap. These coordinates now show up as points. However, I want to be able to color each coordinate point a different color. Any tips/explanation?
1
vote
1answer
54 views

What is the color standard for roads or Transportation for USA?

Are there color standards for US Transportation roads such as Interstate, County,, Interstate, local, private, state highway and other roads out there ?
0
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0answers
12 views

QGIS colors not rendered accurately

After installing 2.10.1-Pisa, a very annoying problem suddenly appeared. As you can see, colors in the left sidebar are not rendered correctly in the main window (nor in the print manager). Instead, ...
4
votes
1answer
103 views

How to change a Esri Scale Bar's font color

I'm working on my first ESRI web map project. In the Default.Aspx page the scale bar is initiated as shown below : dojo.require("esri.dijit.Scalebar"); map.on('load', function () { //resize ...
1
vote
2answers
39 views

Changing Layer Color

I have a map with many feature classes on it. I want to use arcobjects to get to a selected layer (aka one of the feature classes) on the map, and change the fill color of all the polygons within that ...
0
votes
0answers
83 views

redraw canvas when add new overlay?

Good day! A little problem: how to redraw canvas when I add overlay layer? Firstly load osm map, then creates canvas. So when I push the botton and add another layer it looks like sandwich and canvas ...
1
vote
1answer
61 views

Mapping continuous vector data on a continuous colour gradient in ArcMAP 10

I'm plotting vector data for different attributes for countries across Europe. I've used symbology to plot categories of countries. However, the data are numbers so are on a continuous scale. I would ...
2
votes
1answer
86 views

pyQGIS changing Paletted Raster Layers to Grayscale

I've written a plugin which essentially imports a number of colour geoTifs (map tiles) which works correctly but it would be great to display these as Grayscale after loading in. The geoTifs load as ...
2
votes
3answers
55 views

Editing Road Style/Color from ArcGIS Maps and Data Group

I have ArcMap 10.2 on a Windows 10 pc. I uploaded this open source layer into my desktop map, but I can't edit the look of the streets or color from the table of contents. Is there a way to do this, ...
0
votes
1answer
98 views

Importing TIF raster in QGIS, default color band

Where can I change the default color bands for importing raster images? When I import a TIF image the green color band is not set causing a purplish image. When I set it in the properties it views ...
1
vote
1answer
40 views

symbology with 2 fields - one for the color and another for the shape?

for example, i have two fields: 1 - a, b, c 2 - X, Y, Z and i want to do like this: a - square, b - circle, c - point X - blue, Y - red, Z - pink and when i have a and Y - it whould be red square.
2
votes
2answers
95 views

Getting currentfeature's color in Expression Builder of QGIS?

In QGIS Expression builder. I want to obtain the color code of the current feature. I mean: My layer contains lines, each one is painted with a different color. Now I want to assign that color to ...
0
votes
1answer
77 views

Change color of feature (active cursor row) with ArcPy

I have a selection of polygon feature and with a cursor loop I walk through them. I determine the extent of eachfeature and arcmap will zoom to the feature. My default selection color in ArcMap is ...
2
votes
1answer
51 views

How does ArcGIS Pro 1.0 choose default color for first layer added to Map?

When I add my first vector dataset to the Map in an ArcGIS Pro 1.0 project that I created using the Map.aptx project template, it always comes in using a gaudy brown color like in the graphic below. ...
1
vote
0answers
56 views

Convert manual colored maps to vector

Is there a way to colorimetrically and automatically vectorize georeferenced rasters that came from manually colored, scanned maps? Currently we Print the topography maps 20k scale --> hand-coloring ...
0
votes
0answers
65 views

Modifiable SVG fill color, stroke and stroke width

I have a lot of custom svg files made in Inkspace. I need to be able to change their fill color / stroke color / stroke width using QGIS. I have found a similar topic, however the solution mentioned ...
1
vote
2answers
129 views

Adjust Color Theme of CartoDB Basemap “Dark Matter”?

I wanted to know - but haven't found the solution elsewhere - whether it is possible to adjust the color theme of the CartoDB basemap "Dark Matter". I'd only like to change the colors of the water ...
0
votes
0answers
69 views

draw coloured LINESTRING over map [.NET (C#) if possible]

I need to render linestring on the map (possibly OSM map) where each pixel (or at least segment) has assigned custom color. In my linestring, each point defining the line has also color definition. ...
0
votes
0answers
28 views

Different colors of rasters after loading back to QGIS

I am experiencing this issue longer time but sometimes it is really annoying so I would like to solve it. When I save an image from QGIS - no matter when using Project/Save as image or using Export ...
1
vote
0answers
138 views

Convert grey,green,blue to red,green,blue tiff

==== Edit ===== Issue tracked to strange behaviour of gdal_warp when -dstalpha is specified and source is RGBA. I had assumed that the grey,green,blue tiffs (see example below) were genuine and ...
2
votes
0answers
26 views

Black map after attempt to style by column in QGIS [closed]

I'm very new to QGIS and I'd really appreciate some guidance. I have a shapefile of NYC census tracts and 2 csv info files with tract info joined with it. I'm trying to style the individual tracts to ...
7
votes
3answers
236 views

Colour coding by day - any conventions?

I'm working on a map showing on which days garbage is collected in different areas. That means it's pretty tempting to colour code each zone with a different colour representing a day of the week. ...
1
vote
1answer
272 views

legend colour with specific value

i have model plotted in R base<- raster("example.tif") plot(base) image i'd like to change value (0,5,10,15,20,25) breakpoints<-c("0,5,10,15,20,25") plot(base,break=breakpoints) Error in ...
0
votes
0answers
77 views

Using the phase 1 habitat styles?

I am utilising the phase 1 habitat styles and wanted to show 'mixed scattered trees' which is essentially a layer with two different types of green dot. I cannot figure out how to do this and also ...
1
vote
2answers
214 views

how to color polygons with random color in QGIS

I have a map with a large number of polygons that I want to colour individually for display purposes. There is not particular pattern required, only to present them as individual catchments in a ...
0
votes
0answers
22 views

Changing color of multispectral Raster Image using PostgreSQL/PostGIS query

Would like to change the color of a multispectral Raster Image. looking for changing band rendering values for Red, green and Blue bands using PostgreSQL/PostGIS query. I have loaded the raster ...
0
votes
0answers
65 views

Google Earth/KML colors of polygons darken when extruded

I'm playing around with KML, trying to create a multivariate map with a choropleth based on one variable and extrusion/perspective height based on another. Here is an example of a Google Earth image ...
1
vote
1answer
118 views

How to change the color of a specific feature(s) with a PyQGIS script

First of all im a big noob so don't hate. So image that the lines that i have drawn is simple pipeline network, represented by some simple lines in a vector layer. Now the question is, how can i ...