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Results tagged with visualisation
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user 664
The representation of data in a viewable medium or format
10
votes
Accepted
How to visualize azimuthal data with uncertainties?
This requires a kind of "field calculation" in which the value computed (based on a latitude, longitude, central azimuth, uncertainty, and distance) is the bowtie shape rather than a number. Because …
- 70.2k
9
votes
Accepted
How to use/interpret/visualise a distance matrix with unknown coordinates?
One class of solutions uses Multidimensional scaling. This addresses exactly your question: given a set of distances (often obtained among points in a high dimensional space), find an embedding in on …
- 70.2k
2
votes
Raster to Vector
Quick and dirty way: create a polygon for the complement of the region to be shown (by subtracting the region from a large rectangle, for instance). Draw this polygon over the raster.
Better: the st …
- 70.2k
11
votes
Accepted
What is the point of standard symbology?
It's a great question. One standard set of iconic markers with which everyone in the world is familiar is their country's set of street signs: stop, yield, crossing ahead, etc. I hope the point of s …
- 70.2k
4
votes
Accepted
Fitting a word/tag cloud into geographic boundaries
It would take very little tweaking: approximate the polygon boundary by isothetic lines (that is, horizontal and vertical segments) and, as initial conditions, place boxes (with blank content) aligned …
- 70.2k
24
votes
Curved point-to-point "route maps"
The problem is to figure out how much to bend the arcs to enhance their visual resolution.
Here's one solution (among the many possible). Let's consider all the arcs emanating from a common origin. …
- 70.2k
34
votes
Accepted
Comparing two spatial point patterns?
As always, it depends on your objectives and the nature of the data. For completely mapped data, a powerful tool is Ripley's L function, a close relative of Ripley's K function. Lots of software can …
- 70.2k
9
votes
When is a 3D Visualisation in GIS Useful?
Environmental investigations are inherently three dimensional. As a simple illustration of what some environmental data might look like, here is an image from a simple 3D GIS I created (using VRML) i …
- 70.2k
3
votes
Accepted
How can a single line be computed from multiple possibilities
This was briefly discussed on the Statistical Analysis forum at https://stats.stackexchange.com/questions/2493/managing-error-with-gps-routes-theoretical-framework .
- 70.2k