The study and practice of making maps.

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6
votes
1answer
770 views

Black & White / Greyscale Maps and Illustrations

I think greyscale maps & illustrations (with geographic data) seem to be abandoned and the colour maps are mostly used nowadays. This is understandable and personally I also need less time to ...
38
votes
5answers
22k views

How to make beautiful maps in R?

There are quite some nice possibilities to analyse spatial data in R and in the context of my current project I would like to use R more frequently to do that. Until now I plot my maps with ggplot2 ...
23
votes
7answers
6k views

Examples of geovisualizations of global connectivity

I stumbled upon interesting visualization of global connectivity patterns: 'Major road and rail networks in Africa, along with transmission line and underwater cable data.' (Source, more ...
1
vote
1answer
170 views
9
votes
3answers
675 views

How do I compare two maps to determine which is better?

I'm trying to do an objective comparison of two different maps for the same region. At the moment, I'm struggling with defining criteria that will allow me to do a dispassionate evaluation. Does ...
0
votes
0answers
820 views

Python package for Google Maps API v3?

I am looking for a Python package that can generate the JavaScript to display Google Maps API v3. I would like to integrate such package into a django website. I know pymaps exists but it's for ...
10
votes
2answers
2k views

polymaps & poly… polygons

I've been playing with Bing Maps + Polymaps recently. It has become apparent that Bing is the only mapping resource available to Polymaps that includes satellite imagery. Is this true? I am trying ...
2
votes
0answers
51 views

How to connect door nodes using a polyline

I am working on an indoor positioning project which need to transform CAD drawings to GIS shape files. I have transformed the file from CAD to ArcMap 10.1 already. My current problem is that how ...
2
votes
1answer
221 views

How to avoid colliding parallel lines in QGIS Composer

I am preparing a map which is concerned with showing two line features and there relative location to each other. The line features are 20 m apart and at a scale of 1:50 000 or bigger on A3 I want to ...
4
votes
1answer
486 views

How to print pie charts in QGIS?

I added pie charts via text-file to my map. When printing the map they get lost. Does anyone know how to print them? QGIS also seems to delet some charts, when there are to many at one place. Does ...
11
votes
1answer
13k views

How can I render latitude-longitude coordinates on a map with D3?

I am trying to overlay dots of arbitrary sets of longitude-latitude coordinates on top of a United States map. So far I have found the D3 cartography example, but when I try to place dots on X,Y ...
3
votes
1answer
907 views

Offline Map - QGraphicsGeo

I’ve realized a desktop application based on Qt Mobility for displaying maps and adds some landmarks in real-time (like QGeoMapObject). I've to see the track of some vehicles... I've used the code ...
4
votes
1answer
184 views

Map automation, create and populate inset maps for densely-labelled areas

I would like to know if it is possible to automate the example in the picture below, unlike the picture below i'm using vector data. I would like for a fixed scale generate map, but when labels are ...
11
votes
4answers
3k views

How to colour polygons with a completely transparent fill using MapServer?

Is it possible to fill polygons so that they are completely transparent in MapServer? I want to have a black background that is slightly opaque, and wherever there is a polygon I want that to be ...
1
vote
1answer
988 views

Intersection between two SpatialPolygonsDataFrame using gIntersection function in R

I want to select a subset of my map (a SpatialPolygonsDataFrame) to create a new vector map = part of the initial map included inside a given polygon (eventually, inside several polygons). I have a ...
5
votes
2answers
676 views

Can you print cross-hatch area fills like they appear on screen?

I'm trying to use a cross-hatch symbol on polygons in QGIS. When displayed on screen, they look just fine - both in the map and in the composer. The problem is when they are rendered to an image ...
8
votes
3answers
1k views

How to present three spatial variables in one map? [closed]

I want to assign 3 category of variables in a single map. In other words, I have to produce a cartographic visualization of the damage including a legend listing: damaged surface area in the ...
7
votes
2answers
1k views

How can I make segmented roads appear as one line?

I am footling around with Quantum GIS and the British OS Strategi dataset. If I render the roads with a simple line style they look fine: However, if I apply something slightly fancier, it looks ...
2
votes
0answers
110 views

Need help in how to map ZIP codes data by year [closed]

I'd like to build a graphic showing where city employees live, based on their date of hire. I have a list showing the hire date and the ZIP code for each employee. There are about 4,000 employees. I ...
3
votes
1answer
130 views

Is there an easy way to taper huge amounts of drainage vectors?

I've performed hydrological analysis using r.watershed using GRASS and now I have some stream vectors for a large area. Next, I'm planning to taper these streams to varying width to make them appear ...
1
vote
1answer
116 views

Transform csv-coordinates into area

I'm working with an inventory of a species in Southern Sweden. I have recorded my findings (together with coordinates, name of the species and year of finding) and created a CSV-file with i have ...
8
votes
2answers
1k views

Is the quadrilateralized spherical cube map projection the same as Snyder's cubic equal area map projection?

Is the quadrilateralized spherical cube map projection [1] the same as Snyder's cubic equal area map projection [2]? I know both are equal area polyhedral map projections ( ...
4
votes
2answers
2k views

Dynamically change zoom level of overview map to fit with current extent in DDP

I am using DDP pages in a large mapset with pages ranging from 1:7500 to 1:130,000 and the overview map is zoomed out to far to see some of the smaller zones. Is it possible to set the overview map to ...
4
votes
2answers
810 views

How to improve the cartographic design of graticules?

The attached image shows a conflict between the graticule and the state boundary on a map. I have not found a way to display user-defined lines of latitude, which would solve the 42 degree line ...
3
votes
2answers
1k views

Making a Map with a Legend as a .pdf Without a White Background

I have a shapefile of United States counties. I also have an Excel file of the share of the black population in each county. I'd like to make a map of this using GIS. (Before you say that there are ...
10
votes
3answers
521 views

What's the convention for “upside down” labels?

I have line features that are to be used for labels. These lines are correctly oriented(rotated) and positioned such that text placed on them should give a good cartographic output. Compare the below ...
3
votes
4answers
312 views

How do you create Revision Table in Arcmap for OSM contribution?

I have created the following detailed file for upload to OSM in ArcMap but don't know about creating a OSM Revision Table to be able to put the data into OSM. At 1:10,000 At 1:1000 The tool ...
0
votes
2answers
237 views

How to uncheck toggle button in mapbasic?

I want to check un check togglebutton but I don't know how to alter using mapbasic. Is there any command to alter it? I could not find it in MapInfo user guide. I have command: Alter Button But ...
5
votes
1answer
217 views

Cartographic technique for detailing a 'Focus Area'

I'm working on updating a planning document. Whoever was in charge of cartography last time around used a great technique to identify and showcase focus areas (where to focus money and effort for ...
4
votes
1answer
2k views

Getting a constant background color for transparency

I am creating a series of tif files at 1:10k scale over a vast area (760 tiles) using arcpy.mapping.ExportToTIFF and then stitch them together to create a single ecw. The output looks ok but when I ...
12
votes
3answers
1k views

Crime mapping symbology

Are there any standard, publicly available symbol sets for crime mapping? What are their intended applications and their strengths and weaknesses?
1
vote
1answer
68 views

Making an access plan with openstreetmap

What tool would be best to create an access plan (with directions written on roads, local zooms, etc.) from OpenStreetMap (preferably using the MapQuest Open map)?
4
votes
3answers
1k views

Why would labels not display in dynamic arcserver service?

I’ve got a dynamic map service running ArcGIS Server 9.3.1 that will periodically stop displaying labels for some features. When you access the service either through a web application, or ...
8
votes
5answers
4k views

How to emulate this grayscale basemap look+feel in Google Maps

I love the design on the Development Seed homepage, where they've used a grayscale basemap with bold 3D-style graphic markers. It appears that they've used the ModestMaps API to create a tiled ...
-1
votes
6answers
456 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/ ...
3
votes
0answers
268 views

How to do bivariate or multicriteria line symbolization in QGIS?

Bonjour, je cherche à faire sur Qgis un tracé d'un itinéraire avec comme légende une couleur pour le type de route et la largeur du trait pour la fréquentation de cette route. J'ai vu qu'il était ...
11
votes
1answer
1k views

Is there a way to add system date in print composer?

Is there a way in the Print Composer of QGIS to create a label that will automatically update the date (systems date) instead of having a label that you have to manually have to update?
2
votes
1answer
3k views

Is there a simple way to create a new custom vector marker symbol for ArcMap?

I would like to create a set of custom marker symbols for environmental sampling locations. I need there to be "vector" marker symbols not picture symbols. I've tried picture marker symbols and there ...
1
vote
3answers
718 views

How to calculate forest area of a bitmap (jpeg) map?

I have a map of 1:50,000 scale map in .jpg format. Can i calculate the land area of forest,lakes etc from arcmap.Anybody can give me the step to do it? And I want to know what is the coordinate ...
1
vote
0answers
122 views

Need to create custom map based the spatial Database

I need to create a custom map in .net 2008 c# webapplication based the spatial database(sqlserver 2008) without using any third party tools For example in sqlserver 2008 i am create a map using this ...
7
votes
4answers
7k views

Is there a layout view in Quantum GIS?

Is there a layout view in Quantum GIS (something similar to ArcGis layout view) ? Anyway I am looking for tutorial or some good practices how i can prepare a nice map to print in Quantum GIS.
2
votes
0answers
156 views

Grid perspective tool

I'm not a cartographer, but want to use a map for my project from world atlas book. I scanned the map, but no matter how carefully it is scanned, it's perspective is slightly distorted and it's ...
2
votes
0answers
424 views

How to create polygon “stamps” and extend lines by fixed distance? in QGIS

This is related to Does QGIS have these CAD editing functions? Cadtools have solved a lot of the issues I had but I need the ability to see how long a line is while I am drawing an orthoganal ...
2
votes
2answers
3k 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 ...
8
votes
1answer
139 views

How to improve the display of color images?

I've found some really nice color ramps for portraying rasters, but in ArcGIS and QGIS, they don't seem to be easily usable for a finished product because their complexity causes obvious steps rather ...
8
votes
1answer
278 views

How to plot approximate geospatial data on a historical map?

Our library is undertaking a project to map historical data regarding 18th and 19th century British and American printers and publishers. One of the problems that we have encountered is the different ...
7
votes
2answers
272 views

How to connnect two lines with different width so it looks good?

Simple question, how do you create a symbol with or without representation to connect two lines with different line width so it looks good? I need to have a smooth transition between the lines, ...
2
votes
2answers
424 views

MapFish Print: does it support ArcGIS Server?

we are looking for a map print solution, MapFish printing module quite fits. but as far as the searches I've done, it seems MapFish doesn't support ArcGIS Server. One thing I am not sure about is, ...
5
votes
4answers
6k views

Advanced colour palette for raster data

I'm working with satellite date namely chlorophyll and sst. Each geophysical parameter generally has standard colours to represent them. I'm importing geotiffs into Qgis and I'm having difficulty ...
0
votes
0answers
187 views

Export Data Driven Pages extents to Kmz

Is it possible to export the extents of DDP to KMZ using arcpy - Map to KML (Conversion)? Alternatively can we export each extent of a single DDP extent to a new mxd and then run arcpy.MapToKML_3d on ...