The study and practice of making maps.

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0
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1answer
54 views

how to create a cloropleth world map in arcgis 10.2

I am new to arcgis and I am trying to create a cloropleth map to display ratio values for different countries. I believe that my basemap will need to have a country layer so that the shading of ...
8
votes
2answers
108 views

What purpose do intersection points serve when mapping?

In this old map of California you will notice a ring of intersection points, all circling the focal land mass of the map. What are these intersections used for? I assume they are meant to guide the ...
4
votes
4answers
1k 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 ...
1
vote
2answers
144 views

Showing percentage symbol in ArcGIS map labels?

I'm trying to show percentage poverty per municipality on the map I'm working on, and I have the percentage values displayed on the map, but I don't know how to get the percentage symbol itself to ...
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0answers
38 views

QGIS developer help: custom icon

I'm a new QGIS developer and I have some difficulties to implement the follow feature: I want to track a live gps receiver and draw a custom icon (like png) in a map layer. I'm using a rubber band ...
9
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3answers
433 views

PostGIS (2.0?) - Native Versioning of the Datastore

I recently have been surprised to see there are not too many solutions at all discussing the best methods of versioning datastores which are made available for editing. I am looking for a robust, ...
2
votes
1answer
99 views

Best simple GIS for Estate inventory and mapping

I think my GIS needs would be considered simple for the 3500 acre estate I manage: create maps of our roads, trails, fields, and buildings, and show distances on the roads and trails; calculate ...
0
votes
1answer
54 views

how to not print scalebar and how to print the zoom bar that shows on map

I am using javascript api for ArcGIS and need to print the zoom bar on map, but don't want the scale information to be printed. How can I achieve this?
2
votes
3answers
84 views

How to create labeling similar to this map?

Any ideas on if ArcMap is able to create labeling similar to this map? Ie. 95xx or 9500 is listed outside of the units and the the actual last 2 digits are listed within so that each unit does not ...
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0answers
72 views

Display followers count on Google maps using R

How can I plot the count of followers, locations wise on google maps - Im using R language my data is as below: for(i in 1:25){print(friends_obj[[i]]$location)} [1] "London & Glasgow/Edinburgh, ...
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0answers
21 views

Overlay Shapefile and Raster layer in R [duplicate]

I have a raster layer with climate data from the north of Mexico, part of Canada and the US mainland. I am trying to restrict the climate data to only the zone of the US mainland. To do this I thought ...
2
votes
2answers
111 views

which map projection should be used for global map with geography and human demographics

I am working on a project to try to identify the most threatened populations (on a global scale) of having a limited access to freshwater. I want to compare those most at risk currently and then add ...
1
vote
1answer
260 views

Map missing in map composer and when I print map

I am new to QGIS and am probably missing something but when I set up a new composer and add a map to the page nothing appears. I have pressed the render button and the up date with no results. When I ...
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vote
2answers
435 views

Approach to creating a multivariate choropleth map with diverging color scheme(s)

We recently had primary elections in the community I serve. With the results having been released, there have been some requests for precinct level maps. Many of these primary elections featured more ...
0
votes
1answer
65 views

TileMill OGR Plugin: Failed to read GeoJSON data

I'm trying to load the following into a TileMill layer as the file build1.geojson { "type": "Feature", "geometry": { "type": "Polygon", "coordinates": [[ ...
1
vote
2answers
135 views

What does it mean if a topographic map is indicated to be “West of fifth Meridian”

The Natural Resources Canada topographic map A 741, 83 C/7, edition 3 has a (bilingual) indication at the bottom stating: WEST OF FIFTH MERIDIAN       OUEST DU ...
0
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1answer
80 views

How to simplify shapefiles without losing attributes?

I want to simplify a huge shapefiles using mapshaper. However whenever I simplify the shapefile I loose a lot of data attributes. how can we simplify the shape files while retaining at least some of ...
3
votes
2answers
101 views

When symbolising by category can I make the transparency different for each category? [duplicate]

Normally when I'm making something semi-transparent I edit the transparency in layer properties, but now im trying to make something in the layer (a symbol level) semi transparent. I want to edit the ...
3
votes
2answers
84 views

Create a raster map from more than one shape

I've some shapefile loaded in Arcmap (steets, buildings...) with an appropriate symbology ad I need to convert them to unique raster, to obtain a map (like topographic map) with a specified resolution ...
0
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1answer
101 views

Map generation failing with Kartograph.js

I am trying to generate a very simple map using kartograph.js. But some how my code is not working. <html> <head> <script src="jquery-1.8.3.min.js"></script> ...
2
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0answers
44 views

How do you create a map that has choropleths that will change with a timeslider? [closed]

I have data for different countries over time that I would like to display in a choropleth map with a time slider that plays automatically on click. What is the best way to do this. Thanks.
0
votes
1answer
96 views

Want to get an SHP file for my coutry Algeria

H everyone , i'm running a clustering test on my country with R, but the problem the clustering doen't look good because of the map i have, i hant to get a bigger map of my country 'ALGERIA' in an SHP ...
0
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4answers
152 views

ArcGIS Labeling Expression when truncation needed to fit in some polygons? [closed]

What would be the expression coding for if the address is 14802. But if the whole address cannot fit inside the building dimessions, then it should be truncated to the last two digits - 02. I am ...
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0answers
69 views

Change palette of basic colors grid in 'Select color' dialog

I would like to know if there is a way to change the default palette of colors (48 Basic colors) which is displayed on the dialog "Select Color". Specifically, I want that when I add a layer the ...
0
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0answers
10 views

how to sub in a map id instead of a topo basemap

My apologies for the extremely newbie question, but I've been working with the Bookmark widget (https://developers.arcgis.com/javascript/jssamples/widget_bookmarks_dropdownbutton.html) in the sandbox ...
1
vote
1answer
79 views

How to display raster attributes by default?

I have a 4-bit thematic raster image with a color map from white to dark blue (Figure 1). The values 1 - 6 represent tree canopy cover at various breakpoints. I also created a raster attribute table ...
0
votes
2answers
76 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 ...
2
votes
2answers
98 views

Rendering a map in QgsComposition on Win 7 / 8 in QGIS 2.2.0 with QgsComposerMap gives blank map

I'm writing a plugin for QGIS 2.2.0 which should render a pdf file with a map and some text. The code is working under Linux (current Arch) and Windows XP, but it's not working on Windows 7 or 8. ...
1
vote
1answer
416 views

List of Offensive Symbols/ Colours for Cartography

I was at a data visualization workshop a few days ago and someone there asked if there are any symbols/colours that might offend people when making charts, the presenter didn't really understand the ...
0
votes
2answers
34 views

How to set symbology based on an attribute of a 1-N table

Now, it is possible to edit geographic features and add elements in child tables using 1-N relationships. I want to construct a stacked - symbology which allows me to represent the multiple ...
0
votes
2answers
52 views

How to define the symbology used in QGIS print composer without using separate styles for screen and print

I use scale-dependent symbols for mapping (rendering Openstreetmap vectors as it happens). For instance paths show up when zoomed closer than 1:50000, but only roads show when zoomed out. The rules ...
3
votes
2answers
263 views

TIF format to view a vegetation Map with QGIS

I'm a new user of QGIS and I'm trying to view a map present in an online GIS dataset. There are several formats for this dataset and one of them is a TIF folder with several files: .tif, .tif.aux, ...
8
votes
5answers
741 views

What cartographic line symbol could make a coastline represent water like this old map?

I live in a coastal area with lots of islands. Sometimes with a black and white map it's hard to distinguish land from sea. So I'm trying to replicate this old map's style. I'm trying to do this in ...
0
votes
1answer
15 views

organize the map theme and style configuration file

I am working on an android application which render some features directly, but these different features should be rendered differently at different zoom level or only be visible from a certain zoom ...
16
votes
4answers
743 views

How to implement ringmaps in ArcGIS?

In a recent article by Stewart and colleagues in IJHG I stumbled upon interesting technique of visualizing data using ringmpas. Some more information referenced in the article about this technique ...
8
votes
2answers
540 views

Creating summary table of symbology of all datasets in multiple MXDs?

This is related to the following Retain ESRI symbology in Mapinfo TAB . As an initial step (in arcpy) I want to access the symbology of all the datasets and create a document which has the details of ...
1
vote
1answer
143 views

How do I create an index layer for multiple maps?

I am trying to create an index layer of just the area within the Orange lines. I am having difficulty creating this layer due to it not being a simple box area. The goal is to create a index layer, ...
3
votes
1answer
118 views

what dictates the drawing order of overlapping features with in the same layer/feature class in ArcGIS?

I know that in ArcGIS drawing order is controlled by layers, and if I want to make some features be drawn on top of other features I can use definition queries to separate them into different layers ...
2
votes
1answer
41 views

How to export map in draft mode?

ArcMap 10.2. I want to export map in draft mode. Without layers. Only few rectangles displaying main part of map, legend, scale bars, north arrows, margins and guide lines. E.g. something like ...
5
votes
3answers
217 views

Uniform Annotation Font Size in Multiple Data Frames

I'm making a map that has five inset maps that display a smaller map scale where point features are more dense. I have exported my labels to annotations in the geodatabase so that I could fit the ...
7
votes
2answers
183 views

How to display nebulous boundaries between regions with indistinct edges?

I'm trying to map the boundaries between regions which don't necessarily have a hard edge. For example, areas where languages predominate don't have a distinct edge, but instead have a degree of ...
7
votes
2answers
2k views

Can shaded relief be “blended” with DEM colour ramp in ArcGIS to produce a more visually dramatic result?

Not being able to use true transparencies with ArcGIS colour ramps where only solid colours are allowed has me always wondering about how to improve the look of the surface in my maps without ...
34
votes
16answers
3k views

Is there any experience using Computer Games to display GIS data?

besides being a GIS use I'm a big computer game fan. Games like Civilization, Minecraft, World at War and many others have a very powerfull engine to display huge maps in a beutifull way. I was ...
4
votes
2answers
133 views

What is the the color gradient at borders called?

Many paper maps have an effect around the borders where there is a gradient from the darker color of the borderline to the lighter color of the area fill. What is this effect called? See ...
1
vote
0answers
11 views

Are there any NTS index maps showing the most recent update?

For the Canadian National Topographic System, are there any index maps available that do not only show map numbers throughout the country, but also the most recently available update for each map? As ...
1
vote
0answers
62 views

Which bins should be used for demographic data for a choropleth map?

I'm currently working on a project which produces a choropleth map similar to a map like this: http://dl.dropboxusercontent.com/u/54512470/Telefondaten_VIZ/index.html That map has 2x5 classifications ...
1
vote
1answer
81 views

Leader lines not rendering when converted to PDF

This is very puzzling, I have an annotation feature class stored in a geodatabase that contains labels with leader lines. The leader lines show up perfectly in the .mxd, it is only when I export to ...
2
votes
2answers
933 views

Problem with merging and dissolving a shapefile in R

I am migrating from ArcMAP to opensource GIS. I've succesfully installed R and many packages in a Ubuntu 12.04 machine. I am used to linux and programming in C, but not to R and its syntax. I am ...
0
votes
1answer
85 views

arcpy to perform “select by attribute” and display the result on the map in a table [duplicate]

I am thinking to use arcpy to select by attribute, after that I want to display the selected features attribute in a table on the map, how can I make it? Thanks in advance.
2
votes
1answer
54 views

Is there general Earth Projection in ArcGIS for Desktop?

I'm starting a new personal project and I need a little bit of helping on setting it up. First off I'm trying to determine the area of a rectangle that is 1 mile in width and the circumference of ...