::GetCurrentSelectionNodeCoordinates

With a model that contains at least one deformable body (they contain nodes) in the active page and window, execute the following script. That script will create a dialog that will contain an mdlTempCollector widget that is set to pick “Nodes” and display a message that reports the coordinates of the selected node. With that dialog displayed, activate the “Node” collector that it contains and graphically pick a node from one of the deformable bodies in your active model:

namespace eval ::my_test {
  variable my_node ""
}

set tl [toplevel .top]
wm geometry $tl 550x100
wm title $tl "::model::mdlTempCollector::GetCurrentSelectionNodeId Example"
grid rowconfigure $tl 2 -weight 1
grid columnconfigure $tl 0 -weight 1

set col [::model::mdlTempCollector $tl.col ::my_test::my_node "Node" "MeshNode" \
  -afterResolveFunc ::my_test::onNodePicked]
grid $col -row 0 -column 0 -sticky nesw

proc ::my_test::onNodePicked {} {
  set id [::model::mdlTempCollector::GetCurrentSelectionNodeId .top.col]
  tk_messageBox -message "Picked node id: $id"
}