Hi Gabor, Thanks for your answer. How can I set the column names of layout so that nearPoints can match x,y axes name with layout columns? I probably want to make a dataframe df with column (x, y, nodename, other_info), where x, y are coordinates info from layout.
cheers, Wenliang On Tue, Apr 11, 2017 at 9:43 AM, Gábor Csárdi <[email protected]> wrote: > Generate the coordinates first, by calling the layout_* function > directly, and use that in plot(). > > G. > > On Tue, Apr 11, 2017 at 2:40 PM, Wenliang Zhao > <[email protected]> wrote: > > Hi All, > > > > I am trying to make an interactive plot on shiny using igraph. The > target is > > when I click a node of current graph, it can generate a separate > fluidRow to > > show the information of current node. I see the solution using > input$click > > to retrieve the coordinates info of mouse. Then there is nearPoints > function > > to retrieve corresponding rows for current mouse position. > > > > To do that, I need x,y coordinates of each node stored in a dataframe. I > > plot the graph using default layout (radial style) without any > specification > > of coordinates before plotting. May I wonder how can I get the > coordinates > > info after graph plotted? > > > > -- > > cheers, > > > > Wenliang Zhao > > > > > > _______________________________________________ > > igraph-help mailing list > > [email protected] > > https://lists.nongnu.org/mailman/listinfo/igraph-help > > > > _______________________________________________ > igraph-help mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/igraph-help > -- cheers, Wenliang Zhao Master in Computer Science, Courant Institute of Mathematical Sciences, New York University Cell: 305-781-5829
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