I have no idea what nearPoints is. But if you want to use the raw coordinates in the igraph plot, then you will need you do rescale = FALSE in the igraph plot, and maybe you'll also need to set xlim and ylim manually.
Gabor On Wed, Apr 12, 2017 at 8:09 PM, Wenliang Zhao <[email protected]> wrote: > 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 > > _______________________________________________ > 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
