The study and practice of making maps.

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2
votes
1answer
362 views

Possible workflows for shaded relief representation as vector

I am looking for a good workflow on how to represent relief on a map as vector (e.g. for further processing in Adobe Illustrator or Inkscape). My inspiration is the present google maps at zoom level ...
0
votes
0answers
24 views

Asp code for distance in SQL sever

I've looked around but I can't find the answer anywhere and im getting kinda frustrated now. I'm using sql server and what im trying to do is to find apartments within a 0.5km radious of a said ...
0
votes
3answers
94 views

Displaying road outlines but not segments i.e. no lines at intersections? [duplicate]

I have the roads that I want to just display at outlines but not segments (I.e not disconnected from each road). I am trying dissolve but its not working. Attached is a link to a package file of ...
1
vote
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 ...
0
votes
0answers
157 views

Any android application for field mapping with Google map in background

I need a android/iPhone app, through which I can draw point/line/polygon while survey only. The app should have facility to use Google satellite imagery or provision for uploading base maps. Please ...
3
votes
2answers
486 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 ...
1
vote
1answer
330 views

Color region polygons according to cluster label

I want to present data on a map of our country. I have used R for showing the clusters on a country! Here the steps I took: setwd('D:/r/cluster2') channel <- odbcConnectExcel('cluster.xls') data ...
0
votes
1answer
79 views

Drawing roads with different widths

I'm drawing roads with different widths. The road data is constructed using GeoJson. (Each road is represented with a LineString.) When I draw the roads with almost the same width, a trivial, direct ...
23
votes
5answers
2k views

Coloring thousands of polygons so each is distinct from its neighbors?

I am using ArcGIS 10, and I have layers of the 2010 Census blocks, block groups, and tracts. There are thousands of polygons in these layers. I want to color them so that each is distinct from its ...
0
votes
1answer
67 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
120 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
2k 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
295 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 ...
0
votes
0answers
46 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
votes
3answers
444 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
122 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
61 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
92 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 ...
0
votes
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
148 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
311 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 ...
1
vote
2answers
769 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
81 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
149 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
votes
1answer
104 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
117 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
88 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
votes
1answer
125 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
votes
0answers
48 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
144 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
votes
4answers
176 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 ...
0
votes
0answers
80 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
votes
0answers
12 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
108 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
97 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
132 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
468 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
35 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
66 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
397 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
817 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
16 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
768 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
612 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
213 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
246 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
45 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
321 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
228 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 ...