1
vote
1answer
56 views

How to symbolize a large amount of points with lots of color

I have an interactive map with a very large amount of different points. Depending on user selection, various points are shown or not-shown. These points are divided into several categories, each ...
0
votes
1answer
136 views

How to map and color localities (provinces) with an external CSV using Quantum GIS

I use a Swiss shape file map (called PLZO_PLZ) available on http://www.cadastre.ch/internet/cadastre/fr/home/products/plz/data.html (ZIP file Shape LV03) PLZO_PLZ contains a column called PLZ which ...
1
vote
1answer
138 views

How to improve the color matching between a scanned image of a map and the original?

When I scan a section of paper map using a Canon Lide 200 A4 scanner, the resulting image has colours which are not true to the original. The most annoying is where the predominantly white paper ...
4
votes
4answers
926 views

Halo use background color

As you see on the attached image, I labeled contour lines on the map (in meter). Which function will allow the "halo" to take the background color of the map? On the image, the halo is greenish which ...
2
votes
2answers
2k views

Looking for a colormap for SRTM like OCM Landscape

In Quantum GIS there's an OpenLayers plugin. I would very much like to use the same colormap/scheme/theme used in the OCM Landscape layer and apply it to SRTM image I have. I checked the the open ...
9
votes
7answers
892 views

How to automatically set polygons borders to improve map readability when rendering thematic maps?

When mapping an value as a color to render a thematic map the objects borders can alter the map readability a lot. For example in this thematic map of the US counties with black borders: There are a ...
11
votes
7answers
2k views

Color palette conventions

I wonder if there is a "unified" source for map color conventions, that GIS map builders are encouraged to follow? EDIT To clear up my question a bit. I'm more interested in the color <-with ...
10
votes
6answers
887 views

Are there any convenient sources of color palettes to use in ArcGIS software while producing maps?

Since it was asked in Beta and I want to know the answer, I post it here.