Free topographic maps software for linux

gtkGLGraph is an OpenGL/Gtk2.0 graphing widget that can draw surface maps as well as X,Y data.

The feature set is fairly complete and should be of immediate use to scientific applications.

Plone Google Maps is a product which enables integration of Google Maps into Plone sites.

Plone Google Maps (qPloneGoogleMaps) is a Google Maps view product for the Plone content management system which enables integration of Google Maps into Plone sites.

Due to qPloneGoogleMaps you can set up the latitude and longitude of your site objects and have their maps exhibited on your site.

Any object with the latitude-longitude has an additional map portlet displaying this object. This portlet, in turn, has a template "Large screen". If you click on the large screen below the portlet, you will be able to see the full-size map of the page with its description.

The folders containing objects with the latitude-longitude parameters have an additional display view - "maps view", which gives an opportunity to see the full-size map with all these objects.

There is a new content type "Map" which can have other content types - "overlays". It enables the positioning of different objects on one map showing them with the markers of different colours.

Plone Google Maps Installation

Install qPloneGoogleMaps and geolocation as Zope products
Install these two products in your Plone instance with Quick Installer (Plone Control Panel ->Add/remove Products)

gradmap is a GIMP plug-in that maps the contents of the specified drawable with active gradient. It calculates luminosity of each pixel and replaces the pixel by the sample of active gradient at the position proportional to that luminosity.

Complete black pixel becomes the leftmost color of the gradient, and complete white becomes the rightmost. Works on both Grayscale and RGB image with/without alpha channel.

Puzzle Maps is a software version of the Montessori Puzzle Maps activity.

Puzzle Maps presents users with a choice of maps in which they can remove and replace the various countries or states that make up the map.

In this way, they familiarize themselves with the geography of the world.

WWW::YahooMaps is a Perl module which can create links to Yahoo! Maps.

SYNOPSIS

use WWW::YahooMaps;

#first method: PASSING ADDRESS BIT-BY-BIT
my %addr = (
"street" => "555 N Michigan Ave",
"city" => "Chicago, IL 60611",
"country" => "us",
);

if (my $url = WWW::YahooMaps::hashreftolink(%addr)){
print "url1 $urln";
}

#second method: ADDRESS INFO IN STRING
#separators can be ";" or newline "n"
#street should come before city
#pass an additional 1 at the end if you want to pass city first
if (my $url = WWW::YahooMaps::stringtolink("us","us","101 Morris Street; Sebastopol, CA 95472")){
print "url2 $urln";
}

#third method: CALL A FUNCTION WITH BIT-BY-BIT PARAMETERS
if (my $url = WWW::YahooMaps::stringtolink("us","us","Paris, TX; Main Street", 1)){
print "url3 $urln";
}

Normal/Displacement Map Generator is a tool designed to help you create Geometry Normal Maps. Such maps are used in high-end Games to fool the Player into believing that a Low Resolution Mesh does have much more detail than it actually does.

Those kind of Normal Maps are best generated using a High Resolution Mesh from which the Normal Informations is extracted and projected onto the Low Resolution Mesh. This tool provides exactly this functionality. A known tool to do the same is ORB but it is windows only and impracticable to use for developing a game on a Linux system.

Besides generating a Geometry Normal Map this tool can also apply a Detail Normal Map onto of the generated Geometry Normal Map. Such Normal Maps are easily created using Normal-Plugins for 2D Graphic Applications like The GIMP. Those Normal Informations are then used to enhance the generated Normal Map. This process can be repeated many times.

Also generated is a Displacement or Height Map. Those maps can be used for Offset Mapping or with never Pixel Shader version to render a Low Resolution Mesh with much more detail by creating Vertices and Faces on the fly during rendering displacing them using such a Displacement Map. This map can also be used as a pure Height Map for Terrain Generators.

Geotrace is a geographical traceroute utility. Geotrace provide graphical view on the map. It has many geographical maps.
In order to be able to use a new map with geotrace, you only need to know one thing: the longitude/latitude of the top left and bottom right corners. Most maps you will find will be centered on 0,0 (about 5 degs south of Ghana and 10 degs west of Gabon. for those of you who dont know, its in Africa.). So, lets do it step by step:
1) Find a map. there are plenty on the web. Nasas a good place to find them (it is a mess though). Or grab one of the few maps at a site with maps for XGlobe and XPlanet.
The image must be in a format understood by gdk-pixbuf (most images youll find will be jpeg or gif which work).
2) Go to the maps/ directory in geotrace. Put the map in there and open up maps.properties
3) on the second line, youll see MAPS:World50.gif, World100.gif etc... Thats a list of all the maps. Add the name of your recently downloaded map on that line.
4) now, you need to tell geotrace what the coordinates are. Add a line to the file that looks as follows:
filename:BOUNDARY=lon1,lat1,lon2,lat2
filename: case sensitive, map has to be in the maps/ folder
lon1 and lat1: longitude and latitude of the top left corner
lon2 and lat2: longitude and latitude of the bottom right corner
As I said earlier, for most maps youll find, youll get -180,90,180,-90 which means that the map is centered on 0,0. However, the two world maps (World100 and World50) in geotrace are centered on 10W,0
You might notice that the three maps of the US have another line associated with them. Thats the alber projection. You probably wont have to deal with that.
4) Run geotrace, select your map from the drop-down and enjoy.
Version restrictions:
- Some hops may have extravagant locations, but for once, its not my fault. The netgeo server does not have fully updated records. So my advice is, just live with it
Enhancements:
- added line color and width options.
- added cmdline args. host to trace, and startup map.
- added map options: path to maps and startup map.
- warning to check paths when run for the first time.
- added status bar
- fixed draw_trace_on_map which didnt draw in certain cases (timeouts)
- fixed bug that caused crash when a hop times out and more hops repond later
- 2001-04-05
- added option: resolve host name or not
- load/save options from file (~/.geotrace) 2001-04-04
- fixed bug that caused last map in file not to be read (world100) 2001-04-03 added options for traceroute (path to exec, timeout and maxttl)