graph = new hpccGraph.GraphHtml()
.target(placeholder)
.on("vertex_click", (row, col, sel) => console.log("click", row, col, sel))
.on("vertex_dblclick", (row, col, sel) => console.log("dblclick", row, col, sel))
.on("vertex_mousein", (row, col, sel) => console.log("mousein", row, col, sel))
.on("vertex_mouseover", (row, col, sel) => console.log("mouseover", row, col, sel))
.on("vertex_mouseout", (row, col, sel) => console.log("mouseout", row, col, sel))
;