The study and practice of making maps.

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7
votes
2answers
207 views

What does map scale refer to in map making / field survey metadata?

If I have, say, a printed map at the scale of 1:20000 and the legend says that it was mapped at a scale of 1:10000 does this simply mean, that the surveyors/cartographers made drafts & sketches or ...
13
votes
5answers
1k views

Where to start learning how to make maps with QGIS?

I have no skills in GIS, "map-making," or any other map program. Been a county planner for 25 yrs, where there was always a "drafting" staff. I'm in another agency now and need to be able to produce ...
3
votes
1answer
117 views

How to create a small globe locator map in QGIS?

I've tried searching on gis.stackexchange and elsewhere but can't seem to figure this one out though it seems simple enough. The type of locator I'm thinking of is similar to the one from the map in ...
1
vote
1answer
380 views

Overlapping lines representation

Cartography question. I do have administrative boundries for counties in polygon FC. What tool do I use to prioritise display of features. In example, when lines overlap- I want to show only 1 dashed ...
1
vote
0answers
97 views

Is there a way to show outlines in a multipatch feature in ArcScene?

When viewed in ArcMap 2D environment, multipatch faces are outlined. When viewed in ArcScene 2.5 D environment, multipatch faces are not outlined, yet the symbol in symbology properties still shows an ...
4
votes
3answers
538 views

How to join number of point features into attribute of nearest line segment

I have point shapefile with lot of attributes, that represent road accidents and line shapefile with highways. What i want is to join attribute into line shapefile with value, that represent number of ...
3
votes
1answer
364 views

Preventing ArcMap from Clipping Neatline when Exporting Map

I cannot seem to keep ArcMap from clipping off a fraction of an inch on the edges of the maps I am exporting: I would like the 1.5 point border that is set for the legend to be uniform around the ...
1
vote
0answers
29 views

Adding a class for null value

I'm making a graduated style map and I would like to add a class that would represent null values. I can add a class for zero (0) value ... meaning some of the areas reported zero report, but some ...
4
votes
4answers
879 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 ...
6
votes
1answer
293 views

locating latitude-longitude point in a piste-map with matrix transforms

I am trying to plot points of a particular latitude longitude on this image of a Swiss mountainous landscape. What I am doing is I have some 54 known location-points plotted on this image (not ...
26
votes
4answers
1k views

How to use directional shading on boundaries for cartographic effect?

The attached screenshot of a National Geographic map shows some beautiful directional shading of boundaries. I'm trying to reproduce this sort of shading for a burn perimeter map, as I want to ...
8
votes
2answers
120 views

How do you store brief cartographical tips, information, possible future designs that you find?

I find inspiring maps and/or brief, 1-line design tips (i.e. "when satellite image is used as a basemap, I like to desaturate the tarnation out of it" that I may want to consider later using in a ...
0
votes
1answer
349 views

Way to add 1km x 1km UTM grid onto online map service

Is there any exist services or way to add 1km x 1km UTM grid onto online map service such as Google Maps or OpenStreetMap?
10
votes
5answers
4k views

Libraries to render vector-based maps in the browser

Is there a open source JavaScript library like leaflet or openlayer which can be used in a web or mobile application and loads vector-based maps instead of images? I only need the road information and ...
6
votes
1answer
437 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 ...
1
vote
1answer
130 views

Use Java to automate the service creation and display up to date data on the map

Our team is using ESRI ArcGIS and our requirement is 1.To create a web application in JAVA with a map displaying various data from DB. 2.The data gets updated periodically in the DB and the map ...
1
vote
1answer
70 views

other than GrADS and NCL, any other map/chart scripting and plotting software dedicated for climate and meteorology?

NCL is quite good indeed, but I would like to know whether there are other options.
8
votes
3answers
408 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 ...
6
votes
0answers
94 views

What are common ways of presenting features that share coordinates? [closed]

When I encounter features of the same class, but with identical coordinates I lay them out in a spiral arm formation. I chose to pick the initial radius and angle at random (can't recall my actual ...
2
votes
1answer
447 views

How to style a point based on Actual Attribute Values?

I have published a point layer in Geoserver, which is the data from a GPS Survey. In addition to the geometry, my layer, also contains an Attribute for Accuracy, which indicates the Accuracy in meters ...
0
votes
0answers
519 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 ...
2
votes
0answers
47 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 ...
26
votes
5answers
7k 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 ...
2
votes
1answer
102 views

Where did the texture fill option go in QGIS 1.9 Master?

In the previous version (1.8) of QGIS you could select to fill a polygon using a PNG or JPG image. This option seems to have gone from QGIS 1.9 Master. I can get it by selecting the "Old Symbology" ...
1
vote
1answer
978 views

Data Driven Pages and exporting PDF using Python

I am able to zoom into map_index shapefile rows for a group of mxd documents in layoutview and export zoomed record as a PDF document at the same time. I tried to combine below codes to make the ...
4
votes
1answer
344 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 ...
3
votes
1answer
265 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
140 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 ...
1
vote
1answer
410 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 ...
11
votes
4answers
1k 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 ...
3
votes
2answers
351 views

High Resolution Sinusoidal Interrupted Projection of the Earth

My grandfather built a rather large globe 10 years ago and never got to complete it (he started drawing about a fifth of it by hand and just gave up after that). I have been looking for a sinusoidal ...
14
votes
3answers
379 views

Are there any books about the psychology of cartography?

I have the daunting task to do a seminar about the psychology of cartography. I have zero training in this field and would like to ask if anyone has ever tackled this angle?...I would like to ...
2
votes
0answers
69 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 ...
8
votes
3answers
585 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 ...
4
votes
3answers
2k views

How to style points in QGIS based on multiple attributes

While trying to find a useful way having earthquakes displayed, I noticed that it isn't that easy to manage. I'd like to be able to recognize the "Magnitude", "Date", and "Depth" from the style of ...
13
votes
3answers
395 views

How to improve cartographic visualization of overlapping polygons?

I need some advice about how to improve the visualization of cartographic information. User can select different species and the webmapping app shows its geographical distribution (polygonal degree ...
3
votes
1answer
91 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
101 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 ...
6
votes
2answers
167 views

What are the background/geography and foreground/data parts of a map called?

Consider a geographical map, e.g. a street map or satellite map, overlaid with some data, e.g. crime density or distance to closest voting booth. The former part is only used to orient the reader, so ...
7
votes
2answers
630 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
396 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 ...
5
votes
2answers
464 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 ...
5
votes
2answers
360 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 ...
13
votes
2answers
2k views

How to represent overlapping lines in ArcGIS 10.1?

I have lots of lines (in one feature class) which share the same location but I want to represent them as lines that are next to each other because they have different properties (different OWNERS). ...
3
votes
2answers
602 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 ...
21
votes
5answers
731 views

What are the “must read” academic articles every GIS professional should read?

There was a related question a while back that dealt with the top GIS blogs, but I'm also very interested in "academic" sources of GIS information. I'm currently updating my repository of information ...
4
votes
1answer
670 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 ...
3
votes
1answer
223 views

ESRI/ArcGIS draw protractor

I am using ArcGIS maps and trying to follow JS API. I am trying to understand how can I add a protractor on the map which will help in angles while drawing polygons. I understand I could add a Feature ...
10
votes
3answers
322 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 ...
4
votes
6answers
3k views

How to represent several points with same coordinates on map?

I'm working on Arcgis 10. I have a point shapefile representing events with several points having coinciding coordinates (They have the same coordinates). For representing them in a dynamic way, I ...