puts "============"
puts "CR26973"
puts "============"
puts ""

##########################################################################################
puts "Visualization - selection of entities hidden by clipping planes is broken"
##########################################################################################

pload MODELING VISUALIZATION

vinit View1
vclear
vaxo
vsetdispmode 1

proc OCC26973 { toTestViewPlanes toApplyTrsf theImgIdr theCaseName} {
  if {$toApplyTrsf == "1"} {
    box b -100 -100 -100 1 1 1
    ttranslate b 100 100 100
  } else {
    box b 1 1 1
  }

  vdisplay b
  vfit
  vselmode b 4 1

  vclipplane create pln
  if {$toTestViewPlanes == "1"} {
    vclipplane set pln view Driver1/Viewer1/View1
  } else {
    vclipplane set pln object b
  }
  vclipplane change pln equation 0 1 0 -0.5

  vselect 200 140
  set aTestInfo "Test case: "
  append aTestInfo "clipping planes applied to "
  set aDumpFileName $theImgIdr/${theCaseName}
  if {$toTestViewPlanes == "1"} {
    append aTestInfo "view, "
    append aDumpFileName "_view"
  } else {
    append aTestInfo "object, "
    append aDumpFileName "_obj"
  }
  append aTestInfo "object trsf is "
  if {$toApplyTrsf == "1"} {
    append aTestInfo "on"
    append aDumpFileName "_with_trsf.png"
  } else {
    append aTestInfo "off"
    append aDumpFileName "_wo_trsf.png"
  }

  if {[vnbselected] != 1} {
    puts "ERROR: can not select face."
    puts $aTestInfo
  }
  set aSelectedFace [string trim [lindex [split [vstate] "\n"] 1] ]
  if {$aSelectedFace != "Face #1"} {
    puts "ERROR: wrong face is selected."
    puts "Actually seleced face: $aSelectedFace"
    puts $aTestInfo
  }

  vdump $aDumpFileName
  vremove -all
  vclipplane delete pln
}

# check global clipping planes selection
OCC26973 1 0 $imagedir $casename
OCC26973 1 1 $imagedir $casename

# check object clipping planes selection
OCC26973 0 0 $imagedir $casename
OCC26973 0 1 $imagedir $casename