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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87 views

SetColorInterpretation() for a GeoTiff using GDAL not working

I have a single band image which I would like to copy to a 3 bands of a new image and set the ColorInterpretation to red, green and blue respectively. I have tried two approaches, one using the GTiff ...
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209 views

Polygon color on intersect

Using OpenLayers, I am loading a large geojason file of about 4000 polygons. Once the polygons are loaded I want to draw a "LineString" on the map (already done and working). My challenge is that I ...
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49 views

How to optimize color ramp for terrain

I'm working on a project to highlight LiDAR terrain on the web and part of the idea is to show the detail of the data at large scales. I've already read through the excellent Mapbox guide and I've got ...
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0answers
21 views

How can I set fill colors using hex value in arcgis.com webmap?

Has anybody been able to use hex values (e.g. #FF0000) for setting polygon fill symbols in an arcgis.com 'webmap'? I see predefined colors to select from, but no hex input box. Thanks in advance for ...
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23 views

Color blending/compositing in web mapping frameworks?

The color/layer blending capabilities of QGIS 2 produce marvelous results. Blended rasters are especially nice to look at. Blending is, to me at least, a better way of combining layers than mucking ...
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0answers
103 views

How to Export/Print/Save CMYK colored map to SVG, PDF, or PRN/EPS file

I am a beginner using QGIS 2.0.1 on Windows. Following Data-defined Styles in QGIS I fill CMYK values on my map layers, but I cannot Export/Print/Save CMYK to SVG, PDF, or PRN/EPS file. I see only ...
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0answers
122 views

How to change the color of a selected feature with pyQGIS?

is it possible to change the color of a selected feature in qgis 1.8? To highlight a feature I use: vlayer.setSelectedFeatures(selectedList) box = vlayer.boundingBoxOfSelected() ...
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18 views

IColor reporting BGR rather than RGB

I've created a single point in ArcMap 10.1 SP1, and set it's color (SimpleMarkerSymbol) to Red = 16, Green = 0, and Blue = 255, or 1000FF in hex. I saved that as a layer package, and opened it back ...
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34 views

How to get the color of a vector layer in pyQGIS?

I have see this topic (How to change the color of a vector layer in pyQGIS?) but I'm looking for get the color not to change. How I can resolve my problem ? Thanks
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22 views

Tool to save own color table with CMYK, GRB and HSL

Im looking for a tool to save my colors with CMYK, RGB and HSL. So that I can print and compare, write some notes to every color and easy extract. Any idea? Im mainly using Inkscape, Gimp and QGIS ...
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52 views

ArcMap- Create a symbology from RGB with colors name

I have a number of features loaded on a mxd I would like to create a script or model builder to assign each row containing a value in the coloum "ENTE" with a RGB color which must be represented in ...
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205 views

How to set point / line / polygon color and transparency with Python?

How can you set the color and transparency of a vector layer feature in QGIS using Python? Seems like a pretty simple and common task but I can't seem to find answered questions or examples. Any ...
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63 views

Fill up polygons with field value

I have now defined my renderer with a color map I want to fill it with a value in the end field of my shape file's attribute table with python how to do it?? I use QGIS 1.8.0 with python 2.7.3
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76 views

Worsened image quality and flase colours after georeferencing

When I georeference a map of vegetationtyps (about 20 colours, each representing a certain vegetation) the quality of the georeferenced map is really bad and the some colours has changed (e.g. black ...