[vtkusers] paint on plane, triggered by mouse event

[Martin Waitzbauer]

Hello, i want to write a small program, that is painting the tiles on a plane, if the user clicks the left mouse button

i tried it like this (most parts taken from http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ColorCells)

KeyPressInteractorStyle is a self written class, doesnt do anything special than logging left mouse buttons, if the user clicks the left button than arraydata at a speific location is being filled with a new value
Unforrtuantly i wasnt able to make it do so!
changes in the array arent displayed on the screen

so my quetion is, how can i access the plane grid data?

I added trhe source code file, maybe someone can help!

Thank alot!
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cmake_minimum_required(VERSION 2.6)
 
PROJECT(ColorCells)
 
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
 
add_executable(ColorCells ColorCells.cxx)
 
if(VTK_LIBRARIES)
  target_link_libraries(ColorCells ${VTK_LIBRARIES})
else()
  target_link_libraries(ColorCells vtkHybrid )
endif()