# VTK.js - Model don't get interactor / mouse event + OBJReader
**URL:** https://discourse.vtk.org/t/vtk-js-model-dont-get-interactor-mouse-event-objreader/1903
**Category:** Web
**Created:** [October 10, 2019, 8:24am UTC](https://discourse.vtk.org/t/vtk-js-model-dont-get-interactor-mouse-event-objreader/1903 "2019-10-10T08:24:50Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@HugoC](https://discourse.vtk.org/u/HugoC)
#### Post date: [October 10, 2019, 8:24am UTC](https://discourse.vtk.org/t/vtk-js-model-dont-get-interactor-mouse-event-objreader/1903/1 "2019-10-10T08:24:50Z")
Hello,
1/ I’m facing a problem with vtkRenderWindowInteractor and i don’t know what’s going wrong. The model is correctly displayed but no interaction with it is possible, even though i followed the examples for mouse event on vtk.js.
_Js code_ :
```
var renderWindow = vtk.Rendering.Core.vtkRenderWindow.newInstance();
var renderer = vtk.Rendering.Core.vtkRenderer.newInstance();
var cone = vtk.Filters.Sources.vtkConeSource.newInstance();
//var model = vtk.Rendering.Misc.vtkOBJReader.newInstance();
var openGLRenderWindow = vtk.Rendering.OpenGL.vtkRenderWindow.newInstance();
renderWindow.addView(openGLRenderWindow);
var actor = vtk.Rendering.Core.vtkActor.newInstance();
var mapper = vtk.Rendering.Core.vtkMapper.newInstance();
mapper.setInputConnection(cone.getOutputPort());
actor.setMapper(mapper);
renderer.addActor(actor);
renderer.resetCamera();
renderWindow.addRenderer(renderer);
var container = document.getElementById("model");
openGLRenderWindow.setContainer(container);
var size = container.getBoundingClientRect();
openGLRenderWindow.setSize(size.width, size.height);
var interactor = vtk.Rendering.Core.vtkRenderWindowInteractor.newInstance();
interactor.setView(openGLRenderWindow);
interactor.initialize();
interactor.bindEvents(container);
renderWindow.render();
```
2/ I take advantage of this topic to ask something else :
“var model = vtk.Rendering.Misc.vtkOBJReader.newInstance();” is an error.
I can’t see good examples on OBJReader with Js. Can someone guide me a little on how it works ?
Thank you, any information will be appreciated.
---
### Author:  [@Forrest](https://discourse.vtk.org/u/Forrest)
#### Post date: [October 10, 2019, 2:10pm UTC](https://discourse.vtk.org/t/vtk-js-model-dont-get-interactor-mouse-event-objreader/1903/2 "2019-10-10T14:10:28Z")
Hi,
1. You forgot to set an interactor style after you create your interactor. The TrackballCamera will give you 3D trackball interaction.
```auto
interactor.setInteractorStyle(vtk.Interaction.Style.vtkInteractorStyleTrackballCamera.newInstance());
```
1. Did you mean vtk.IO.Misc.vtkOBJReader.newInstance()? There are no readers under vtk.Rendering.\*. That being said, if the error still persists, feel free to post it here.
---
### Author:  [@HugoC](https://discourse.vtk.org/u/HugoC)
#### Post date: [October 10, 2019, 2:16pm UTC](https://discourse.vtk.org/t/vtk-js-model-dont-get-interactor-mouse-event-objreader/1903/3 "2019-10-10T14:16:24Z")
Hi Forrest,
1/ Perfect, i thought a default style was on it so it was optionnal.
2/ I was searching for the correct path, is there a library or list where i can see all the differents paths ?
Thank you for the help !
---
### Author:  [@Forrest](https://discourse.vtk.org/u/Forrest)
#### Post date: [October 10, 2019, 2:28pm UTC](https://discourse.vtk.org/t/vtk-js-model-dont-get-interactor-mouse-event-objreader/1903/4 "2019-10-10T14:28:30Z")
You’re welcome!
You can find API paths here: [https://kitware.github.io/vtk-js/api/](https://kitware.github.io/vtk-js/api/). Alternatively, you can also search for them in the vtk.js github project, as the folder paths correspond to the object paths.
---
### Author:  [@HugoC](https://discourse.vtk.org/u/HugoC)
#### Post date: [October 10, 2019, 2:37pm UTC](https://discourse.vtk.org/t/vtk-js-model-dont-get-interactor-mouse-event-objreader/1903/5 "2019-10-10T14:37:25Z")
Ok, it’s all clear for me now, i understand better how this works.
Thank you again.
Best regards.