MATLAB: Excel Bubble Chart Code

bubble chartexcel

I am trying to model a pulley system in excel from a code that will calculate belt tension. I have tried to plot the system in matlab but was having trouble scaling the size of the markers to be the correct diameter so I created a matlab code that will generate an excel file and plot the data from the belt tension code as a Bubble Chart. My problem is that I have a specified diameter for each pulley. I can manually set the Bubble size in excel to be the appropriate diameter but given that we are going to be constantly changing these values, having matlab set the bubble size would be ideal. Currently it models each pulley as the same size in their appropriate X and Y coordinates. Any help would be greatly appreciated! PulleyTable is sample data and below is a copy of the code:
PulleyTable = table({'CRK','IDL3','AT1','ALT','AT2','WP','IDL1','AC','IDL2'}', ...
  [0;123.6;185.27;260.42;228.77;138.84;-62.55;-268.3;41],...
  [0;2.2;46.86;58.25;127.35;190.34;182.38;98.3;121],...
  [164.16;62.26;57.26;60.56;57.26;124.36;72.26;116.26;72.26],logical([1 0 0 1 0 1 0 1 0]'),...'VariableNames',{'Name','X','Y','D','In_Out'});
PulleyTable.Properties.VariableUnits({'X','Y','D','In_Out'})={'mm','mm','mm','CCW'};
filename = 'pulleygraph.xlsx';
writetable(PulleyTable,filename,'Sheet',1,'Range','A1');
Excel = actxserver('Excel.Application');
ResultFile = ['...\pulleygraph.xlsx'];
Workbook = invoke(Excel.Workbooks,'Open',ResultFile);
set(Excel,'Visible',1);
Chart = Excel.ActiveSheet.Shapes.AddChart;
Chart.Name = 'NanoPulley';
ExpChart = Excel.ActiveSheet.ChartObjects('NanoPulley');
ExpChart.Activate;
try
  Series = invoke(Excel.ActiveChart,'SeriesCollection',1);
  invoke(Series,'Delete');
  Series = invoke(Excel.ActiveChart,'SeriesCollection',1);
  invoke(Series,'Delete');
  Series = invoke(Excel.ActiveChart,'SeriesCollection',1);
  invoke(Series,'Delete');
  Series = invoke(Excel.ActiveChart,'SeriesCollection',1);
  invoke(Series,'Delete');
  Series = invoke(Excel.ActiveChart,'SeriesCollection',1);
  invoke(Series,'Delete');
  Series = invoke(Excel.ActiveChart,'SeriesCollection',1);
  invoke(Series,'Delete');
  Series = invoke(Excel.ActiveChart,'SeriesCollection',1);
  invoke(Series,'Delete');
  Series = invoke(Excel.ActiveChart,'SeriesCollection',1);
  invoke(Series,'Delete');
catch e
end
NewSeries = invoke(Excel.ActiveChart.SeriesCollection,'NewSeries');
NewSeries.XValues = ['=' 'Sheet1' '!B' int2str(2)];
NewSeries.Values = ['=' 'Sheet1' '!C' int2str(2)];
NewSeries.Name = ['=' 'Sheet1' '!A' int2str(2)];
NewSeries = invoke(Excel.ActiveChart.SeriesCollection,'NewSeries');
NewSeries.XValues = ['=' 'Sheet1' '!B' int2str(3)];
NewSeries.Values = ['=' 'Sheet1' '!C' int2str(3)];
NewSeries.Name = ['=' 'Sheet1' '!A' int2str(3)];
NewSeries = invoke(Excel.ActiveChart.SeriesCollection,'NewSeries');
NewSeries.XValues = ['=' 'Sheet1' '!B' int2str(4)];
NewSeries.Values = ['=' 'Sheet1' '!C' int2str(4)];
NewSeries.Name = ['=' 'Sheet1' '!A' int2str(4)];
NewSeries = invoke(Excel.ActiveChart.SeriesCollection,'NewSeries');
NewSeries.XValues = ['=' 'Sheet1' '!B' int2str(5)];
NewSeries.Values = ['=' 'Sheet1' '!C' int2str(5)];
NewSeries.Name = ['=' 'Sheet1' '!A' int2str(5)];
NewSeries = invoke(Excel.ActiveChart.SeriesCollection,'NewSeries');
NewSeries.XValues = ['=' 'Sheet1' '!B' int2str(6)];
NewSeries.Values = ['=' 'Sheet1' '!C' int2str(6)];
NewSeries.Name = ['=' 'Sheet1' '!A' int2str(6)];
NewSeries = invoke(Excel.ActiveChart.SeriesCollection,'NewSeries');
NewSeries.XValues = ['=' 'Sheet1' '!B' int2str(7)];
NewSeries.Values = ['=' 'Sheet1' '!C' int2str(7)];
NewSeries.Name = ['=' 'Sheet1' '!A' int2str(7)];
NewSeries = invoke(Excel.ActiveChart.SeriesCollection,'NewSeries');
NewSeries.XValues = ['=' 'Sheet1' '!B' int2str(8)];
NewSeries.Values = ['=' 'Sheet1' '!C' int2str(8)];
NewSeries.Name = ['=' 'Sheet1' '!A' int2str(8)];
NewSeries = invoke(Excel.ActiveChart.SeriesCollection,'NewSeries');
NewSeries.XValues = ['=' 'Sheet1' '!B' int2str(9)];
NewSeries.Values = ['=' 'Sheet1' '!C' int2str(9)];
NewSeries.Name = ['=' 'Sheet1' '!A' int2str(9)];
NewSeries = invoke(Excel.ActiveChart.SeriesCollection,'NewSeries');
NewSeries.XValues = ['=' 'Sheet1' '!B' int2str(10)];
NewSeries.Values = ['=' 'Sheet1' '!C' int2str(10)];
NewSeries.Name = ['=' 'Sheet1' '!A' int2str(10)];
Excel.ActiveChart.ChartType = 'xlBubble';
Axes = invoke(Excel.ActiveChart,'Axes',1);
set(Axes,'HasTitle',1);
set(Axes.AxisTitle,'Caption','X')
Axes = invoke(Excel.ActiveChart,'Axes',2);
set(Axes,'HasTitle',1);
set(Axes.AxisTitle,'Caption','Y')
Excel.ActiveChart.HasTitle = 1;
Excel.ActiveChart.ChartTitle.Characters.Text = 'Nano Pulley System';
invoke(Excel.ActiveWorkbook,'Save');
Excel.Quit;
Excel.delete;
clear Excel;

Best Answer

pt=PulleyTable;  % shorten the name...
scatter(pt.X,pt.Y,pt.D.^2/6,'filled')
xlim([-400 400]), ylim([-50 250])
grid on
yields
To make the sizes proportional to the actual diameters, use pi/4*pt.D^.2 and then you can scale that by any proportionality factor you wish to create the pleasing size of the circles desired for the plot.
The color is a detail; add a color triplet vector as desired; didn't worry about it at this point until figure out what it is that actually are trying to accomplish.
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