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function target = scatter(this,long,lat,varargin)
%KML.SCATTER(long,lat,alt) Places point markers in the positions given by long and lat
% Similar to built-in scatter function. For a list of available markers, run
% help kml.parseIconURL
%
% Copyright 2012 Rafael Fernandes de Oliveira (rafael@rafael.aero)
% $Revision: 2.3 $ $Date: 2012/09/05 08:00:00 $
target = struct('type','','id','');
[long,lat] = this.checkUnit(long,lat);
nlat = numel(lat);
p = inputParser;
p.addRequired('lat', @(a)isnumeric(a) && ~isempty(a));
p.addRequired('long',@(a)isnumeric(a) && ~isempty(a) && numel(a)==nlat);
p.addParamValue('id',kml.getTempID('kml_scatter'),@ischar);
p.addParamValue('name','kml_scatter',@ischar);
p.addParamValue('description','',@ischar);
p.addParamValue('visibility',true,@islogical);
p.addParamValue('iconColor','FFFFFFFF',@(a)(iscell(a) && numel(a)==nlat) || (size(a,1)==1 || size(a,1)==nlat) || (ischar(a) && numel(a)==8));
p.addParamValue('iconURL','',@(a)ischar(a)||(iscell(a)&&numel(a)==nlat));
p.addParamValue('iconScale',1,@(a)isnumeric(a) && (numel(a)==1 || numel(a)==nlat));
p.addParamValue('altitudeMode','clampToGround',@(a)ismember(a,{'clampToGround','relativeToGround','absolute'}));
p.addParamValue('altitude',1,@(a)isnumeric(a) && (numel(a)==1 || numel(a)==nlat));
p.addParamValue('timeStamp','',@(a)ischar(a)||iscell(a));
p.addParamValue('timeSpanBegin','',@(a)ischar(a)||iscell(a));
p.addParamValue('timeSpanEnd','',@(a)ischar(a)||iscell(a));
p.parse(lat,long,varargin{:});
arg = p.Results;
if numel(arg.altitude)~=nlat
alt = repmat(arg.altitude(1),size(lat));
else
alt = arg.altitude;
end
nc = numel(arg.iconColor);
ns = numel(arg.iconScale);
if ~iscell(arg.timeStamp)
arg.timeStamp = {arg.timeStamp};
end
if numel(arg.timeStamp)~=nlat
arg.timeStamp = repmat(arg.timeStamp,nlat,1);
end
if ~iscell(arg.timeSpanBegin)
arg.timeSpanBegin = {arg.timeSpanBegin};
end
if numel(arg.timeSpanBegin)~=nlat
arg.timeSpanBegin = repmat(arg.timeSpanBegin,nlat,1);
end
if ~iscell(arg.timeSpanEnd)
arg.timeSpanEnd = {arg.timeSpanEnd};
end
if numel(arg.timeSpanEnd)~=nlat
arg.timeSpanEnd = repmat(arg.timeSpanEnd,nlat,1);
end
if nc~=1
if ~iscell(arg.iconColor) && ~ischar(arg.iconColor)
if ismember(size(arg.iconColor,2),[3 4])
%Color matrix, convert to string format
iC = cell(size(arg.iconColor,1),1);
for i = 1:size(arg.iconColor,1)
c = min(max(floor(arg.iconColor(i,:)*255),0),255);
if numel(c)==3
[r,g,b,a] = deal(c(1),c(2),c(3),255);
else
[r,g,b,a] = deal(c(1),c(2),c(3),c(4));
end
[rhex, ghex, bhex, ahex ]= deal(dec2hex(r),dec2hex(g),dec2hex(b),dec2hex(a));
if length(rhex)==1,rhex=['0' rhex];end
if length(ghex)==1,ghex=['0' ghex];end
if length(bhex)==1,bhex=['0' bhex];end
if length(ahex)==1,ahex=['0' ahex];end
iC{i} = [ahex bhex ghex rhex];
end
arg.iconColor = iC;
nc = numel(arg.iconColor);
else
error('Invalid iconColor argument')
end
end
end
iconURL = kml.parseIconURL(arg.iconURL);
scatterfolder = this.xml.createElement('Folder');
for i = 1:nlat
target(i).id = [arg.id '_' num2str(i)];
target(i).type = 'Placemark';
% coordinates = mat2str([long(i) lat(i) alt(i)]);
% coordinates = coordinates(2:end-1);
% coordinates = strrep(coordinates,' ',',');
% coordinates = strrep(coordinates,';',' ');
coordinates = sprintf('%0.16g,%0.16g,%0.16g ',[long(i) lat(i) alt(i)].');
placemark = this.xml.createElement('Placemark');
point = this.xml.createElement('Point');
style = this.xml.createElement('Style');
iconstyle = this.xml.createElement('IconStyle');
icon = this.xml.createElement('Icon');
placemark.setAttribute('id',target(i).id);
placemark.appendChild(this.textNode('name','')); %[arg.name '_' num2str(i)]
placemark.appendChild(this.textNode('visibility',num2str(arg.visibility)));
placemark.appendChild(this.textNode('description',arg.description));
if ~isempty(arg.timeStamp{i})
timeStamp = this.xml.createElement('TimeStamp');
timeStamp.appendChild(this.textNode('when',arg.timeStamp{i}));
placemark.appendChild(timeStamp);
elseif ~isempty(arg.timeSpanBegin{i}) || ~isempty(arg.timeSpanEnd{i})
timeSpan = this.xml.createElement('TimeSpan');
if ~isempty(arg.timeSpanBegin{i})
timeSpan.appendChild(this.textNode('begin',arg.timeSpanBegin{i}));
end
if ~isempty(arg.timeSpanEnd{i})
timeSpan.appendChild(this.textNode('end',arg.timeSpanEnd{i}));
end
placemark.appendChild(timeSpan);
end
if nc==nlat
iconstyle.appendChild(this.textNode('color',arg.iconColor{i}));
else
iconstyle.appendChild(this.textNode('color',arg.iconColor));
end
if ns==nlat
iconstyle.appendChild(this.textNode('scale',num2str(arg.iconScale(i))));
else
iconstyle.appendChild(this.textNode('scale',num2str(arg.iconScale)));
end
if iscell(iconURL)
icon.appendChild(this.textNode('href',iconURL{i}));
else
icon.appendChild(this.textNode('href',iconURL));
end
point.setAttribute('id',['Point_' arg.id]);
point.appendChild(this.textNode('altitudeMode',arg.altitudeMode));
point.appendChild(this.textNode('coordinates',coordinates));
iconstyle.appendChild(icon);
style.appendChild(iconstyle);
placemark.appendChild(style);
placemark.appendChild(point);
scatterfolder.appendChild(placemark);
end
scatterfolder.appendChild(this.textNode('name',arg.name));
scatterfolder.appendChild(this.textNode('id', arg.id));
this.doc.appendChild(scatterfolder);
end