The study and practice of making maps.

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90 views

Creating Legends for QGIS 2.0 Feature Blend Mode Outputs

I am working on visualizing ~4100 buffered point features. The shading of the buffers is keyed to a field in the data. Because the buffers overlap, I turned on multiply in the new feature blend mode ...
4
votes
3answers
428 views

How to improve cartography by processing map exports with GIMP?

I am about to make a map with a heavy emphasis on cartography. I would really like to spice it up by processing the image in GIMP and I was wondering if anyone had any tips for bringing the ...
0
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2answers
98 views

Slippy map tile question and good practice

I have created a small slippy map (Leaflet) and have given it a bounding box. If the user tries to pan/slide outside the given bounds then the map bounces back. Also, the slippy map only has tiles ...
4
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1answer
318 views

How to write labels with varying significant figures/decimal places?

I have results that range from ex. 113,009 down to 0.00495 - Can someone recommend a way to write/construct a label expression for the following in ArcMap: • If less than 1, use 2 decimal places ...
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0answers
159 views

Ohio State Plane to Lat/Lon

I've looked into a few other posts/libraries as far as converting between State Plane (Easting/Northing) to get a Lat/Lon value, however I've run into some trouble. I saw here ...
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0answers
232 views

offline OpenLayers with MapQuest not showing (openlayers asking wrong tile names/zooms

i´m beginning on GIS, trying to show maps offline, from the disk. I got the tiles from MapQuest, level 6 to 12. I´m trying to show them with OpenLayers but it´s only showing empty rectangles. ...
7
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2answers
87 views

Resources for Learning 508 Compliance/Accessibility Requirements for GIS Figures

Does anyone know of any quality resources (books, papers, presentations, websites) for learning about 508 Compliance/Accessibility requirements in relation to cartography (GIS figures and templates)? ...
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2answers
81 views

Trace vector map from GeoTiff, Garmin

My goal is to create a vector map for my Garmin GPS by tracing over a topo raster. The vector data would be exported in ESRI SHP format and later converted for Garmin. So far, I can load the geo ...
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0answers
85 views

Learning classical geography - recommended literature et.c

I've been working in the field of GIS for a few years now, and there are some disciplines of knowledge where I lack a good degree of education. My educational background is that I've studied computer ...
-2
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1answer
91 views

Buffer is giving me a different distance [closed]

I'm using ArcGIS 10.1. When I Buffered I changed the environments to compare the two different projections. WyLAM is a statewide Lambert Conformal Conic projection used for Wyoming. State plane in ...
3
votes
2answers
301 views

Key for a Heat Map

I have a question about heat maps and the correct way to describe the results. I have a dataset of small historic territorial units which vary greatly in size in different parts of a country. I want ...
0
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3answers
584 views

Show “layer name” as text in arcgis layout view (map)

I am trying to show the layer names of all visible layers in ArcGis 10.1 when creating a map in layout view. First I tried to use "insert legend" and show there only the layername, but I can't ...
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2answers
387 views

Best way to create/draw a map (especially indoor)

I'm currently developing an indoor map/room plan for an university project. I've already searched through stackexchange to figure it out but I couldn't find anything similar. So what I currently do ...
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1answer
202 views

How to get a list of map scales programmatically in ArcMap?

I need to get all map scales, which are shown in the ArcMap scalebar. I need list of value, something like: 1:1500 1:3000 1:6000 1:12000 1:24000 1:50000 1:100000 Does anyone know how to get it?
4
votes
3answers
272 views

Open Street Map: converting to country -> administrative unit -> city database

To moderators: If you think this question is too broad, please point me into right direction before closing, I'm desperately looking for help. I'm stuck on my task and I don't know what to do. The ...
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1answer
33 views

How can I upload more than 10 images in a category map?

I did a category map with 30 different categories. For each, I would like to upload an image but the "wizards" permits me to upload only ten images and then one image for "others". Is it possible to ...
8
votes
1answer
353 views

Help choosing most suitable bivariate choropleth mapping coloring scheme

I am trying to overlay a nominal variable (2 categories - rainfed vs irrigated) in a choropleth map over a numeric variable. In order to highlight the difference in pattern among the two ...
1
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1answer
175 views

Exporting from ArcGIS 10.2 to PDF for editing in Inkscape-Where are the layers?

I'm trying to export a simple street map with markers from ArcGIS 10.2 to PDF for editing in Inkspace (Note: I've tried this with exports to .ai and SVG as well with results similar to those recounted ...
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1answer
429 views

Is there a standard for oil pipeline symbology?

DEAR PEOPLE FROM THE FUTURE: Here's what we've figured out so far… To develop a map for specific public is recommended using some special symbology. I am in charge to develop a map for an audience in ...
3
votes
1answer
189 views

How to prepare automatic text labelling for legend using arcmap?

I need to label for text with legend without ungrouping layers. I have attached an example image to show the expected output model I am looking for your guidance. Thanks in advance.
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2answers
304 views

What is a good Javascript API for weather data?

I'm looking for a good javascript api which gives access to a weather data-base. I want to extract information like average number of rain days, amount of sunshine and average temperature. Is there ...
0
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1answer
69 views

European route E4 in geodata format

Good morning, Has anybody locate any kml, shp or gpx file with the complete European trail E4 ? Lots of google search navigates me to nowhere ... Dimitris
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3answers
497 views

Should I use a discrete or continuous scale for coloring a chloropleth?

I am making a choropleth for an upcoming local race using D3. There are two candidates running for an election. For any given polygon on my map, if the red candidate has more votes, the color should ...
3
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1answer
116 views

Which projection is being used in this figure?

I would like to use the projection being used in this figure. Does anyone know which one it is? Esp helpful if it is available in ArcGIS. From plant stress page thanks!
2
votes
3answers
810 views

ArcGIS legend columns

I am making a legend in ArcGIS 10, and have a few layers with a large number of classes. When I try to display the legend with two columns for that layer, the second layer always lines up with the ...
1
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1answer
167 views

How to create themed layer based on a list of geometries and specific risk values in Sharpmap

I am now using SharpMap for creating a network-based tool. By using SharpMap, for constructing network, the current functions in SharpMap enables the tool to capture coordinate on background layer and ...
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1answer
89 views

How to create a value-by-alpha map in Java?

Someone has post similar question as mine before : similar question But my objective is slightly different. I have a shape file (.shp) (a country map) I would like to write a piece of java code to ...
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2answers
111 views

How can you insert a custom symbol?

How can you use a custom symbol for either dot density or proportional symbol maps in QGIS? Is there a way to import a symbol of your own such as a drawing or image that you can create or download ...
0
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1answer
352 views

Flow Mapping Lines by Magnitude

I am attempting to map the flow of remittances into Japan using the FlowMapper plugin in QGIS. When I use the Style--> Advanced--> Size Scale field--> magnitude command, the lines become so thick ...
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0answers
37 views

getting Intersections and streets from map

Am new to GIS and maps , but am working on a research concerning traffic analysis and I want to get the Intersections as nodes and the connecting streets as edges , what source could I find these data ...
3
votes
1answer
342 views

Export ArcMap cartographic representation to a symbol?

Using Cartographic Representation (CR) I've created a nice feature symbol with a filled interior and sharp outline. It looks great on a map, on screen and printed. However I can't duplicate that ...
2
votes
1answer
49 views

Is there demand for a service to publish web maps with lots of shapes? [closed]

Is anyone in the GIS community trying to publish choropleth web maps with a large (10s to 100s of thousands) number of polygons? and if so what's your current approach and what are the shortcomings of ...
2
votes
2answers
108 views

Measure areas, lenghts in specific regions (Australia, Sout East Asia)

I'm in need to find a suitable projections to measure correctly areas and lenghts for 2 areas of interest. I want to measure both factors for: 1) First region Australia & New Zealand (1st ...
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2answers
312 views

How to plot lat/long stored as text in Oracle DB using report builder/SSRS r2

We use an Oracle 10g database. However we write reports using SSRS or report builder, using the Oracle connection type to the datbase. In oracle we have 2 text fields, one for lat and one for long. ...
5
votes
2answers
211 views

Which true type editor do you use to create/modify point symbols for GIS?

Which true type editor do you use to create/modify point symbols for GIS and what are the advantages and disadvantages of the tool? I am looking for a true type editor to create/modify custom point ...
0
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0answers
85 views

Moving a Google Map Marker on a Mac

I have exact lat & long coordinates that I will enter and hit return in Google maps. When I do this it displays this point with a green marker on the map but I can not move this marker. I want to ...
4
votes
2answers
109 views

Measuring scale for small scale maps

A cartography question: you open an atlas and usually at the beginning of it there are some world maps showing various thematics. Let's say the world map uses Robinson projection and it says it has a ...
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0answers
125 views

updating the extent automatically in the print composer

Just started using QGIS (after trying what I need to in GRASS). Using the Print Composer, I've put down a map which is based on the map in my map canvas, which is what I'll want to print. Then put ...
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1answer
60 views

How to use the Cartographic Composer of GRASS 6.4.3?

Following on from my previous question (which was, again, how to use the Cartographic Composer)... I've got a GIS in GRASS. I need to print various bits of it. Problem is, it needs images on it ...
5
votes
1answer
131 views

How to achieve Gradient Fills in ArcMap?

Does anyone know of a native way to achieve the gradient fills like the ones in the attached picture (map_1)? The circular and rectangular fills that I see already in ArcGIS' symbology choices don't ...
2
votes
1answer
194 views

Openlayer map not loading

Just another OpenLayers problem Plugin is installed correctly but when I add a layer I get following message. (CRS is on Pseudo mercator) Can anyone help me out? An error has occurred while ...
14
votes
4answers
960 views

How do I make a map where overlapping symbols increase Opacity?

I was looking at some maps like: Map from Ship Logs or the Facebook worldwide friendships Mapped (via the Flowing Data blog) These Maps look good because single lines are almost transparent, and ...
2
votes
2answers
60 views

How to produce maps with copyright imagery on it in GRASS?

I'm having some trouble with a GIS that I've got to produce. I work for a contractor and we'll have to produce maps to do the work for our client. The client has specified that if we print maps out ...
4
votes
1answer
115 views

Criteria for cartographic capacity [closed]

For a paper at university i am trying to create a cataloge for cartographic capacity of different GIS programs, especially open source like QGIS and so on The aim of this is to eventually have a ...
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0answers
233 views

Lambert conformal conic projection - Europa

I am trying to calculate map of Europa in Lambert projection. I am using formula from wikipedia (Lambert wiki), but calculation is verřy slow with comparison to Mercator. I know, there are sin, cos, ...
3
votes
1answer
92 views

Customize search feature

I'm trying to create a map with CartoDB to show the spanish population between...at a municipality level. I can do everything perfectly, but I have just one problem: I would like to know if is ...
3
votes
1answer
173 views

Declination Diagram

What point on a UTM map does the declination diagram refer to? Is it the centre? Is it the edges? Is there a standard? The central meridian on a UTM map points to true north. Are grid north and true ...
3
votes
1answer
175 views

How to fill the area bounded by lines in QGIS?

There are two types of area I want to fill color: The areas bounded by a line, such as a building The area bounded by different lines, such as the river I don't know how with QGIS. I only know how ...
5
votes
1answer
111 views

Making a 3D map with shapefiles, lidar and aerial image data

I want to try to make a simple 3D map for a small area (10 square miles) with some housing, some roads and some vegetation on it. My geodata is as follows: shapes with houses/roads/vegetation. ...
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1answer
45 views

Connecting a map to live data from Yahoo Finance

I have a vector world map and am trying to connect it to Yahoo Finance, Live, in such a way that: a) If a particular country's currency goes down, the map of that country will go RED and if it goes ...