gsp_plot_graph.m
2cb18aae5832master

gsp_plot_graph.m
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			function gsp_plot_graph(G,param)
			%GSP_PLOT_GRAPH Plot a graph in 2D or 3D
			% Usage: gsp_plot_graph(G);
			% gsp_plot_graph(G,param);
			%
			% Input parameters:
			% G : Graph structure or a cell of graph structures.
			% param : Optional variable containing additional parameters.
			% Output parameters:
			% none
			%
			% 'gsp_plot_graph(G)' plots a graph (or multiple graphs) in 2D or 3D,
			% using the adjacency matrix (G.A), the plotting coordinates (G.coords),
			% the coordinate limits (G.plotting.limits), the edge width (G.plotting.edge_width),
			% the edge color (G.plotting.edge_color), the edge style (G.plotting.edge_style), the
			% vertex size (G.plotting.vertex_size), and the vertex color (G.vertex_color).
			%
			% Additional parameters:
			% param.show_edges : Set to 0 to only draw the vertices. (default G.Ne < 10000 )
			% param.num_clusters : Number of clusters for a clustered graph.
			% param.clusters : Cluster identities for a clustered graph.
			% param.cluster_colors : Cluster colors for a clustered graph.
			% param.cp : Camera position for a 3D graph
			%
			% Example:
			%
			% G = gsp_swiss_roll(200);
			% gsp_plot_graph(G);
			%
			% See also: gsp_plot_signal gsp_plot_signal_spectral
			%
			%
			% Url: http://lts2research.epfl.ch/gsp/doc/plotting/gsp_plot_graph.php

			% Copyright (C) 2013-2016 Nathanael Perraudin, Johan Paratte, David I Shuman.
			% This file is part of GSPbox version 0.7.0
			%
			% This program is free software: you can redistribute it and/or modify
			% it under the terms of the GNU General Public License as published by
			% the Free Software Foundation, either version 3 of the License, or
			% (at your option) any later version.
			%
			% This program is distributed in the hope that it will be useful,
			% but WITHOUT ANY WARRANTY; without even the implied warranty of
			% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
			% GNU General Public License for more details.
			%
			% You should have received a copy of the GNU General Public License
			% along with this program. If not, see <http://www.gnu.org/licenses/>.

			% If you use this toolbox please kindly cite
			% N. Perraudin, J. Paratte, D. Shuman, V. Kalofolias, P. Vandergheynst,
			% and D. K. Hammond. GSPBOX: A toolbox for signal processing on graphs.
			% ArXiv e-prints, Aug. 2014.
			% http://arxiv.org/abs/1408.5781


			% Author: David I Shuman, Nathanael Perraudin
			% Date: 14 March 2014


			% Handling optional inputs
			if nargin<2
			param = struct;
			end

			if ~numel(G.coords)
			error('There is no coordinates associated to this graph!');
			end


			if ~isfield(param,'show_edges')
			param.show_edges=G.Ne<10000;
			end

			if ~isfield(param,'clear'), param.clear = 1; end
			if ~isfield(param,'edge_size'), param.edge_size = 0; end



			if iscell(G)
			for i=1:length(G)
			figure;
			gsp_plot_graph(G{i},param);
			end
			else

			if ~isfield(G,'coords')
			error('GSP_PLOT_GRAPH: Cannot plot a graph without coordinate!')
			end

			% Clear axes
			if param.clear
			cla;
			end
			G = gsp_graph_default_plotting_parameters(G);

			% TODO: To be changed
			if (~isfield(param,'num_clusters') \|\| ...
			~isfield(param,'clusters') \|\| ...
			~isfield(param,'cluster_colors') )
			num_clusters=1;
			clusters=ones(G.N,1);
			cluster_colors=G.plotting.vertex_color;
			elseif length(param.cluster_colors)<param.num_clusters
			error('Not enough cluster colors specified');
			else
			num_clusters=param.num_clusters;
			clusters=param.clusters;
			cluster_colors=param.cluster_colors;
			end

			% Start ploting
			hold on;


			if param.show_edges
			gsp_plot_edges(G,param);
			end

			for i=1:num_clusters

			if size(G.coords,2)==2
			scatter(G.coords((clusters==i),1),G.coords((clusters==i),2),...
			G.plotting.vertex_size,'MarkerFaceColor',cluster_colors(i, :),...
			'MarkerEdgeColor',G.plotting.vertex_color);

			elseif size(G.coords,2)==3
			scatter3(G.coords((clusters==i),1),G.coords((clusters==i),2),...
			G.coords((clusters==i),3),G.plotting.vertex_size,...
			'MarkerFaceColor',cluster_colors(i, :),'MarkerEdgeColor',...
			G.plotting.vertex_color);
			% xlim([G.plotting.limits(1,1) G.plotting.limits(2,1)]);
			% ylim([G.plotting.limits(1,2) G.plotting.limits(2,2)]);
			% zlim([G.plotting.limits(1,3) G.plotting.limits(2,3)]);
			end
			axis(G.plotting.limits);
			end

			if size(G.coords,2)==3
			if ~isfield(param,'cp')
			cp=[-1.4,-16.9,3.4];
			else
			cp=param.cp;
			end
			set(gca,'CameraPosition',cp);
			end

			axis off;
			hold off;
			end

			% TODO: use special presets of the following style for more graphs:
			if isfield(G, 'type')
			if strcmp(G.type, 'non_uniform') \|\|...
			strcmp(G.type, 'sub-non_uniform') \|\|...
			strcmp(G.type, 'non_uniform_patch') \|\|...
			strcmp(G.type, 'sub-non_uniform_patch')
			axis equal; axis tight;% axis on;
			end
			end

			end

iCAPs/packages/gspbox/plotting/gsp_plot_graph.m2cb18aae5832master

gsp_plot_graph.mView Options

iCAPs/packages/gspbox/plotting/gsp_plot_graph.m
2cb18aae5832master

gsp_plot_graph.m
View Options