/ 
Gtk2-Ex-Geo-0.51
River stage one • 2 direct dependents • 2 total dependents
/ Gtk2::Ex::Geo

NAME

Gtk2::Ex::Geo - Perl Gtk2 widgets for GIS

SYNOPSIS

# the order of these is important: use Gtk2::Ex::Geo; use Glib qw/TRUE FALSE/; use Gtk2 '-init';

my $gis = Gtk2::Ex::Geo::Glue->new( history=>[''] );

$gis->set_event_handler( \&info ); $gis->{overlay}->{rubberbanding} = 'zoom rect';

# the widgets already created and in $gis # have to be declared as Custom widgets # they are installed through this custom_handler

sub get_custom_widget { my $name = $_[2]; if ($name eq 'layer_widget') { return $gis->{tree_view}; } elsif ($name eq 'map_widget') { return $gis->{overlay}; } }

Gtk2::Glade->set_custom_handler(\&get_custom_widget);

$glade = Gtk2::GladeXML->new("gui.glade"); $glade->signal_autoconnect_from_package('main');

$glade->get_widget('map_widget')->show_all; $glade->get_widget('layer_widget')->show;

Gtk2->main;

LAYERS

What is expected of a layer by Gtk2::Ex::Geo?

Properties

name

string (Gtk2::Ex::Geo takes care)

hidden

boolean (Gtk2::Ex::Geo takes care)

alpha

0..255 (Gtk2::Ex::Geo takes care)

ogr_layer

(for dialogs, todo: change to simple layer)

iterator

(Gtk2::Ex::Geo takes care)

Methods

world(1)

returns (minX,minY,maxX,maxY)

todo: context menu returns an array

nodata_value(nodata_value)

set or get

rasterize()

(context menu command)

cache()

(context menu command)

todo: type_for_user (for the GUI) todo: alpha_for_user (for the GUI)

SEE ALSO

Gtk2::Ex::Geo::Glue

Module for glueing widgets into a GIS.

Gtk2::Ex::Geo::Overlay

A Gtk2 widget for a visual overlay of geospatial data.

Gtk2::Ex::Geo::Renderer

A Gtk2::Gdk::Pixbuf made from spatial data

Geo::Raster

Perl extension for raster algebra

Geo::Vector

Perl extension for geospatial vectors

Gtk2::Ex::Geo::Composite

A set of geospatial layers visualized together

Gtk2::Ex::Geo::TemporalRaster

A raster timeseries

Gtk2::Ex::Geo::GDALDialog

Dialogs for raster (gdal) layers

Gtk2::Ex::Geo::OGRDialog

Dialogs for vector (ogr) layers

This module should be discussed in geo-perl@list.hut.fi.

The homepage of this module is http://libral.sf.net.

AUTHOR

Ari Jolma, <ari.jolma _at_ tkk.fi>

COPYRIGHT AND LICENSE

Copyright (C) 2005 by Ari Jolma

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.5 or, at your option, any later version of Perl 5 you may have available.