The thematic-map tag has no wiki summary.
0
votes
1answer
27 views
MapInfo Thematic Mapping - All other values?
Relatively quick question here, how do I go about adding a style for all other values using individual value thematic mapping?
Thanks,
Alan
11
votes
1answer
925 views
How to create an attractive choropleth map in R?
I've been experimenting with choropleth mapping techniques in R, having reaped the benefits of ggplot2 for creating beautiful graphs within a powerful data analysis package.
When it comes to mapping ...
0
votes
0answers
31 views
Limit legend only to the displayed area in mapserver + pmapper
I have a big map consist of many scattered layers. To make loading faster, I have merge several layers into one shapefile (*.shp). So in total there are only around 5 layers in the each MAP file. BTW ...
0
votes
0answers
37 views
User Defined Dynamic Layer in pmapper + mapserver
I am a newbie and I need to develop a web gis app, that have a capability to show a thematic layer dynamically based on users option from combo box.
I am using mapserver and pmapper. I want to have a ...
0
votes
0answers
46 views
MapInfo - thematic legend disappears when made translucent
I have created a thematic map in MapInfo v11.
When I make the legend translucent (so that information underneath the coloured polygons is partly visible) the labels in the legend disappear! This ...
7
votes
1answer
103 views
Ternary Legends - how to represent in Arc
I've got a composite image built up from Red Green and Blue composite colours. Each channel represents the differing concentration of a different variable in each location - with 0 being the lowest ...
5
votes
1answer
157 views
How to Make a Thematic Map with ORACLE using MapXtreme?
I want to make a thematic map with Oracle source longitude and latitude values.
I have made thematic maps with tab file source. Part of the code looks like this:
...
0
votes
0answers
46 views
Is it possible to automatically create categories with mapserver?
I have a mapfile connecting to a postgres/postgis database. To create a thematic map I can set a class item and a number of classes, for example:
CLASSITEM "aantal"
CLASS
NAME "0"
...
1
vote
0answers
21 views
Retaining original thematic colors in a USA source shapefile [duplicate]
Possible Duplicate:
Adding Layerfiles (.lyr) to Qgis
New to QGIS and need a lot of help! I am using QGIS with MAC - I have downloaded a USA thematic map but when I open it in my system it ...
2
votes
1answer
517 views
Create new polygon layers from postcodes latitude & longitude
First at all, I want to say that I am geocoding enthusiastic but have no formal background on GIS. I'll do my best to use the right wording and make myself clear what I am striving for.
Also the only ...
3
votes
1answer
86 views
How to find features with NULL values?
I have a layer to analyze and I want to create a thematic map with rule based feature. There is a strange behaviour. I want to find all objects with no data (NULL). All empty objects. The zero value ...
2
votes
1answer
574 views
How can GeoJson polygons be colored programmatically using OpenLayers?
I'm experimenting with dynamically setting the color values of a geojson polygon. In my geojson file, there is an attribute for each polygon called pop_den. I am trying to update the fillcolor of the ...
5
votes
1answer
242 views
Is dynamically generating Choropleth maps a solved problem?
I am trying to work out what mapping tools I would need to use to dynamically create Choropleth maps from our data.
I am working on a project where the backend is a big database of statistics, and ...
1
vote
0answers
60 views
Different colours for touching lines on MapInfo?
I am creating maps for surveyors showing different sections of roads. The start and end points need to be clearly visible so I am using a Region IndValue thematic map. However, sometimes when an area ...
-1
votes
6answers
349 views
Which program that merges excel data onto shapefiles is easiest to use?
some options for merging looks like fusion tables, vizmaps, and these 2
http://mapbox.com/tilemill/docs/guides/joining-data/
...
0
votes
1answer
245 views
How to layer statistics from Excel onto a map?
Would another free app or program be better and easier to do this than mapbox.com ?
I simply want to layer census 2010 data by shading areas onto a map like on theatlanticcities.com/posts/map/ & ...
1
vote
1answer
76 views
Thematic maps on Non Spatial Data in MapGuide
I need to create the thematic map on a polygon layer. But the data is not available in the layer; I am using Postgres database for that. It means I need to create the themes on layer using non spatial ...
8
votes
2answers
514 views
How do you choose the classifications on choropleth maps?
I find myself more and more struggling over defining break points when displaying choropleth (aka thematic) maps to view by others. Does anyone have any suggested references that help guide, both how ...
1
vote
0answers
72 views
Setting border-style to 'no pen' using QgsGraduatedSymbolRendererV2
I am developing a QGIS plugin that, after a series of inputs, will produce a thematic map using the QgsGraduatedSymbolRendererV2. Because the polygon are very small, the boarders make it such that ...
8
votes
7answers
693 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 ...
4
votes
4answers
869 views
Multi-Colored Polygon in Thematic Map
I have to make a thematic map with an attribute table with duplicated features but different attributes. See below:
FEATURE ATTRIBUTE
-------------------
1 bl
1 gr
2 gr
2 ...
