/*=========================================================================

  Program:   Visualization Toolkit
  Module:    TerrainPolylineEditor.cxx

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/

#include "vtkSmartPointer.h"
#include "vtkDEMReader.h"
#include "vtkPolyDataReader.h"
#include "vtkPolyData.h"
#include "vtkProjectedTerrainPath.h"
#include "vtkPolyDataMapper.h"
#include "vtkActor.h"
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkProperty.h"
#include "vtkCamera.h"
#include "vtkImageDataGeometryFilter.h"
#include "vtkWarpScalar.h"
#include "vtkPolyDataNormals.h"
#include "vtkLODActor.h"
#include "vtkImageData.h"
#include "vtkLookupTable.h"
#include "vtkTerrainDataPointPlacer.h"
#include "vtkTerrainContourLineInterpolator.h"
#include "vtkPoints.h"
#include "vtkCellArray.h"
#include "vtkContourWidget.h"
#include "vtkOrientedGlyphContourRepresentation.h"
#include "vtkInteractorEventRecorder.h"
#include "vtkTestUtilities.h"

char TerrainPolylineEditorLog[] =
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"MouseMoveEvent 244 342 0 0 0 0 0 i\n"
"MouseMoveEvent 248 345 0 0 0 0 0 i\n"
"MouseMoveEvent 248 346 0 0 0 0 0 i\n"
"LeftButtonReleaseEvent 248 346 0 0 0 0 0 i\n"
"MouseMoveEvent 248 344 0 0 0 0 0 i\n"
"MouseMoveEvent 248 342 0 0 0 0 0 i\n"
"MouseMoveEvent 248 339 0 0 0 0 0 i\n"
"MouseMoveEvent 246 331 0 0 0 0 0 i\n"
"MouseMoveEvent 246 323 0 0 0 0 0 i\n"
"MouseMoveEvent 246 313 0 0 0 0 0 i\n"
"MouseMoveEvent 246 301 0 0 0 0 0 i\n"
"MouseMoveEvent 246 291 0 0 0 0 0 i\n"
"MouseMoveEvent 248 279 0 0 0 0 0 i\n"
"MouseMoveEvent 252 269 0 0 0 0 0 i\n"
"MouseMoveEvent 254 261 0 0 0 0 0 i\n"
"MouseMoveEvent 256 253 0 0 0 0 0 i\n"
"MouseMoveEvent 258 245 0 0 0 0 0 i\n"
"MouseMoveEvent 258 243 0 0 0 0 0 i\n"
"MouseMoveEvent 259 241 0 0 0 0 0 i\n"
"MouseMoveEvent 259 240 0 0 0 0 0 i\n"
"MouseMoveEvent 259 239 0 0 0 0 0 i\n"
"MouseMoveEvent 259 238 0 0 0 0 0 i\n"
"MouseMoveEvent 259 237 0 0 0 0 0 i\n"
"MouseMoveEvent 259 236 0 0 0 0 0 i\n"
"MouseMoveEvent 259 235 0 0 0 0 0 i\n"
"MouseMoveEvent 259 234 0 0 0 0 0 i\n"
"MouseMoveEvent 258 234 0 0 0 0 0 i\n"
"MouseMoveEvent 258 233 0 0 0 0 0 i\n"
"MouseMoveEvent 257 233 0 0 0 0 0 i\n"
"MouseMoveEvent 257 232 0 0 0 0 0 i\n"
"MouseMoveEvent 256 231 0 0 0 0 0 i\n"
"MouseMoveEvent 256 229 0 0 0 0 0 i\n"
"MouseMoveEvent 256 228 0 0 0 0 0 i\n"
"MouseMoveEvent 256 226 0 0 0 0 0 i\n"
"MouseMoveEvent 256 225 0 0 0 0 0 i\n"
"MouseMoveEvent 258 224 0 0 0 0 0 i\n"
"MouseMoveEvent 264 222 0 0 0 0 0 i\n"
"MouseMoveEvent 276 218 0 0 0 0 0 i\n"
"MouseMoveEvent 294 216 0 0 0 0 0 i\n"
"MouseMoveEvent 320 212 0 0 0 0 0 i\n"
"MouseMoveEvent 348 210 0 0 0 0 0 i\n"
"MouseMoveEvent 380 208 0 0 0 0 0 i\n"
"MouseMoveEvent 410 206 0 0 0 0 0 i\n"
"MouseMoveEvent 438 206 0 0 0 0 0 i\n"
"MouseMoveEvent 462 206 0 0 0 0 0 i\n"
"MouseMoveEvent 478 206 0 0 0 0 0 i\n"
"MouseMoveEvent 490 206 0 0 0 0 0 i\n"
"MouseMoveEvent 493 206 0 0 0 0 0 i\n"
"MouseMoveEvent 499 208 0 0 0 0 0 i\n"
"MouseMoveEvent 502 208 0 0 0 0 0 i\n"
"MouseMoveEvent 503 209 0 0 0 0 0 i\n"
"MouseMoveEvent 504 209 0 0 0 0 0 i\n"
"MouseMoveEvent 505 210 0 0 0 0 0 i\n"
"MouseMoveEvent 506 211 0 0 0 0 0 i\n"
"MouseMoveEvent 508 212 0 0 0 0 0 i\n"
"MouseMoveEvent 510 212 0 0 0 0 0 i\n"
"MouseMoveEvent 512 212 0 0 0 0 0 i\n"
"MouseMoveEvent 515 212 0 0 0 0 0 i\n"
"MouseMoveEvent 516 212 0 0 0 0 0 i\n"
"MouseMoveEvent 517 212 0 0 0 0 0 i\n"
"MouseMoveEvent 518 212 0 0 0 0 0 i\n"
"MouseMoveEvent 519 212 0 0 0 0 0 i\n"
"MouseMoveEvent 522 212 0 0 0 0 0 i\n"
"MouseMoveEvent 524 212 0 0 0 0 0 i\n"
"MouseMoveEvent 530 210 0 0 0 0 0 i\n"
"MouseMoveEvent 538 208 0 0 0 0 0 i\n"
"MouseMoveEvent 541 208 0 0 0 0 0 i\n"
"MouseMoveEvent 547 206 0 0 0 0 0 i\n"
"MouseMoveEvent 549 206 0 0 0 0 0 i\n"
"MouseMoveEvent 550 206 0 0 0 0 0 i\n"
"MouseMoveEvent 551 206 0 0 0 0 0 i\n"
"MouseMoveEvent 552 206 0 0 0 0 0 i\n"
"MouseMoveEvent 553 206 0 0 0 0 0 i\n"
"MouseMoveEvent 554 206 0 0 0 0 0 i\n"
"MouseMoveEvent 554 207 0 0 0 0 0 i\n"
"MouseMoveEvent 554 208 0 0 0 0 0 i\n"
"MouseMoveEvent 554 209 0 0 0 0 0 i\n"
"MouseMoveEvent 555 210 0 0 0 0 0 i\n"
"LeftButtonPressEvent 555 210 0 0 0 0 0 i\n"
"MouseMoveEvent 555 209 0 0 0 0 0 i\n"
"MouseMoveEvent 550 173 0 0 0 0 0 i\n"
"MouseMoveEvent 544 155 0 0 0 0 0 i\n"
"MouseMoveEvent 543 154 0 0 0 0 0 i\n"
"MouseMoveEvent 542 152 0 0 0 0 0 i\n"
"MouseMoveEvent 533 135 0 0 0 0 0 i\n"
"MouseMoveEvent 519 122 0 0 0 0 0 i\n"
"MouseMoveEvent 511 115 0 0 0 0 0 i\n"
"MouseMoveEvent 510 114 0 0 0 0 0 i\n"
"LeftButtonReleaseEvent 510 114 0 0 0 0 0 i\n"
"MouseMoveEvent 512 115 0 0 0 0 0 i\n"
"MouseMoveEvent 513 117 0 0 0 0 0 i\n"
"MouseMoveEvent 515 118 0 0 0 0 0 i\n"
"MouseMoveEvent 521 124 0 0 0 0 0 i\n"
"MouseMoveEvent 525 132 0 0 0 0 0 i\n"
"MouseMoveEvent 529 138 0 0 0 0 0 i\n"
"MouseMoveEvent 530 140 0 0 0 0 0 i\n"
"MouseMoveEvent 532 146 0 0 0 0 0 i\n"
"MouseMoveEvent 533 148 0 0 0 0 0 i\n"
"MouseMoveEvent 534 150 0 0 0 0 0 i\n"
"MouseMoveEvent 534 153 0 0 0 0 0 i\n"
"MouseMoveEvent 534 154 0 0 0 0 0 i\n"
"MouseMoveEvent 534 157 0 0 0 0 0 i\n"
"MouseMoveEvent 534 158 0 0 0 0 0 i\n"
"MouseMoveEvent 534 159 0 0 0 0 0 i\n"
"MouseMoveEvent 534 161 0 0 0 0 0 i\n"
"MouseMoveEvent 534 162 0 0 0 0 0 i\n"
"MouseMoveEvent 534 163 0 0 0 0 0 i\n"
"MouseMoveEvent 534 164 0 0 0 0 0 i\n"
"MouseMoveEvent 534 165 0 0 0 0 0 i\n"
"MouseMoveEvent 533 165 0 0 0 0 0 i\n"
"MouseMoveEvent 532 165 0 0 0 0 0 i\n"
"MouseMoveEvent 531 165 0 0 0 0 0 i\n"
"MouseMoveEvent 530 165 0 0 0 0 0 i\n"
"MouseMoveEvent 529 165 0 0 0 0 0 i\n"
"MouseMoveEvent 529 166 0 0 0 0 0 i\n"
"MouseMoveEvent 528 167 0 0 0 0 0 i\n"
"MouseMoveEvent 527 167 0 0 0 0 0 i\n"
"MouseMoveEvent 527 168 0 0 0 0 0 i\n"
"MouseMoveEvent 526 168 0 0 0 0 0 i\n"
"MouseMoveEvent 526 169 0 0 0 0 0 i\n"
"LeftButtonPressEvent 526 169 0 0 0 0 0 i\n"
"LeftButtonReleaseEvent 526 169 0 0 0 0 0 i\n"
"MouseMoveEvent 525 166 0 0 0 0 0 i\n"
"MouseMoveEvent 525 165 0 0 0 0 0 i\n"
"MouseMoveEvent 525 164 0 0 0 0 0 i\n"
"MouseMoveEvent 525 163 0 0 0 0 0 i\n"
"MouseMoveEvent 525 162 0 0 0 0 0 i\n"
"MouseMoveEvent 525 161 0 0 0 0 0 i\n"
"MouseMoveEvent 525 162 0 0 0 0 0 i\n"
"MouseMoveEvent 526 163 0 0 0 0 0 i\n"
"MouseMoveEvent 526 164 0 0 0 0 0 i\n"
"MouseMoveEvent 526 165 0 0 0 0 0 i\n"
"MouseMoveEvent 526 166 0 0 0 0 0 i\n"
"MouseMoveEvent 526 167 0 0 0 0 0 i\n"
"MouseMoveEvent 526 169 0 0 0 0 0 i\n"
"MouseMoveEvent 526 170 0 0 0 0 0 i\n"
"MouseMoveEvent 526 171 0 0 0 0 0 i\n"
"MouseMoveEvent 526 172 0 0 0 0 0 i\n"
"MouseMoveEvent 526 173 0 0 0 0 0 i\n"
"LeftButtonPressEvent 526 173 0 0 0 0 0 i\n"
"MouseMoveEvent 526 174 0 0 0 0 0 i\n"
"MouseMoveEvent 510 179 0 0 0 0 0 i\n"
"LeftButtonReleaseEvent 510 179 0 0 0 0 0 i\n"
"MouseMoveEvent 510 177 0 0 0 0 0 i\n"
"MouseMoveEvent 510 175 0 0 0 0 0 i\n"
"MouseMoveEvent 510 172 0 0 0 0 0 i\n"
"MouseMoveEvent 512 164 0 0 0 0 0 i\n"
"MouseMoveEvent 512 154 0 0 0 0 0 i\n"
"MouseMoveEvent 514 142 0 0 0 0 0 i\n"
"MouseMoveEvent 514 134 0 0 0 0 0 i\n"
"MouseMoveEvent 514 131 0 0 0 0 0 i\n"
"MouseMoveEvent 513 129 0 0 0 0 0 i\n"
"MouseMoveEvent 513 127 0 0 0 0 0 i\n"
"MouseMoveEvent 512 126 0 0 0 0 0 i\n"
"MouseMoveEvent 510 125 0 0 0 0 0 i\n"
"MouseMoveEvent 509 124 0 0 0 0 0 i\n"
"MouseMoveEvent 507 118 0 0 0 0 0 i\n"
"MouseMoveEvent 503 114 0 0 0 0 0 i\n"
"MouseMoveEvent 502 112 0 0 0 0 0 i\n"
"MouseMoveEvent 501 112 0 0 0 0 0 i\n"
"MouseMoveEvent 500 111 0 0 0 0 0 i\n"
"MouseMoveEvent 499 111 0 0 0 0 0 i\n"
"MouseMoveEvent 499 110 0 0 0 0 0 i\n"
"MouseMoveEvent 499 112 0 0 0 0 0 i\n"
"MouseMoveEvent 501 118 0 0 0 0 0 i\n"
"MouseMoveEvent 501 120 0 0 0 0 0 i\n"
"MouseMoveEvent 501 121 0 0 0 0 0 i\n"
"MouseMoveEvent 500 121 0 0 0 0 0 i\n"
"MouseMoveEvent 500 120 0 0 0 0 0 i\n"
"MouseMoveEvent 499 119 0 0 0 0 0 i\n"
"MouseMoveEvent 497 119 0 0 0 0 0 i\n"
"MouseMoveEvent 495 118 0 0 0 0 0 i\n"
"MouseMoveEvent 487 114 0 0 0 0 0 i\n"
"MouseMoveEvent 481 112 0 0 0 0 0 i\n"
"MouseMoveEvent 471 110 0 0 0 0 0 i\n"
"MouseMoveEvent 461 108 0 0 0 0 0 i\n"
"MouseMoveEvent 453 106 0 0 0 0 0 i\n"
"MouseMoveEvent 445 104 0 0 0 0 0 i\n"
"MouseMoveEvent 435 104 0 0 0 0 0 i\n"
"MouseMoveEvent 432 104 0 0 0 0 0 i\n"
"MouseMoveEvent 430 104 0 0 0 0 0 i\n"
"MouseMoveEvent 429 104 0 0 0 0 0 i\n"
"MouseMoveEvent 425 108 0 0 0 0 0 i\n"
"MouseMoveEvent 424 109 0 0 0 0 0 i\n"
"MouseMoveEvent 422 109 0 0 0 0 0 i\n"
"MouseMoveEvent 421 111 0 0 0 0 0 i\n"
"MouseMoveEvent 417 115 0 0 0 0 0 i\n"
"MouseMoveEvent 413 119 0 0 0 0 0 i\n"
"MouseMoveEvent 411 120 0 0 0 0 0 i\n"
"MouseMoveEvent 410 121 0 0 0 0 0 i\n"
"MouseMoveEvent 409 121 0 0 0 0 0 i\n"
"MouseMoveEvent 409 122 0 0 0 0 0 i\n"
"MouseMoveEvent 409 123 0 0 0 0 0 i\n"
"MouseMoveEvent 409 124 0 0 0 0 0 i\n"
"MouseMoveEvent 408 124 0 0 0 0 0 i\n"
"MouseMoveEvent 408 125 0 0 0 0 0 i\n"
"MouseMoveEvent 407 125 0 0 0 0 0 i\n"
"MouseMoveEvent 403 129 0 0 0 0 0 i\n"
"MouseMoveEvent 403 130 0 0 0 0 0 i\n"
"MouseMoveEvent 402 130 0 0 0 0 0 i\n"
"KeyPressEvent 402 130 0 0 113 1 q i\n"
"CharEvent 402 130 0 0 113 1 q i\n"
"ExitEvent 402 130 0 0 113 1 q i\n";

int TerrainPolylineEditor(int argc, char * argv[])
{
  if (argc < 2)
    {
    std::cerr
    << "Demonstrates editing capabilities of a contour widget on terrain \n"
    << "data. Additional arguments : \n"
    << "\tThe projection mode may optionally be specified. [0-Simple,1-NonOccluded\n"
    << ",2-Hug]. (defaults to Hug)\n"
    << "\tA height offset may be specified. Defaults to 0.0\n"
    << "\tIf a polydata is specified, an initial contour is constucted from\n"
    << "the points in the polydata. The polydata is expected to be a polyline\n"
    << "(one cell and two or more points on that cell)."
    << std::endl;
    std::cerr << "\n\nUsage: " << argv[0] << "\n"
              << "  [-ProjectionMode (0,1 or 2)]\n"
              << "  [-HeightOffset heightOffset]\n"
              << "  [-InitialPath SomeVTKXmlfileContainingPath.vtk]"
              << std::endl;
    return EXIT_FAILURE;
    }

  // Read height field.
  char* fname =
    vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/SainteHelens.dem");
  vtkSmartPointer<vtkDEMReader> demReader =
    vtkSmartPointer<vtkDEMReader>::New();
  demReader->SetFileName(fname);
  delete [] fname;

  // Extract geometry

  vtkSmartPointer<vtkImageDataGeometryFilter> surface =
    vtkSmartPointer<vtkImageDataGeometryFilter>::New();
  surface->SetInput(demReader->GetOutput());

  vtkSmartPointer<vtkWarpScalar> warp =
    vtkSmartPointer<vtkWarpScalar>::New();
  warp->SetInput(surface->GetOutput());
  warp->SetScaleFactor(1);
  warp->UseNormalOn();
  warp->SetNormal(0, 0, 1);
  warp->Update();

  // Define a LUT mapping for the height field

  double lo = demReader->GetOutput()->GetScalarRange()[0];
  double hi = demReader->GetOutput()->GetScalarRange()[1];

  vtkSmartPointer<vtkLookupTable> lut =
    vtkSmartPointer<vtkLookupTable>::New();
  lut->SetHueRange(0.6, 0);
  lut->SetSaturationRange(1.0, 0);
  lut->SetValueRange(0.5, 1.0);

  vtkSmartPointer<vtkPolyDataNormals> normals =
    vtkSmartPointer<vtkPolyDataNormals>::New();
  normals->SetInput(warp->GetPolyDataOutput());
  normals->SetFeatureAngle(60);
  normals->SplittingOff();

  vtkSmartPointer<vtkPolyDataMapper> demMapper =
    vtkSmartPointer<vtkPolyDataMapper>::New();
  demMapper->SetInput(normals->GetOutput());
  normals->Update();
  demMapper->SetScalarRange(lo, hi);
  demMapper->SetLookupTable(lut);

  vtkSmartPointer<vtkActor> demActor =
    vtkSmartPointer<vtkActor>::New();
  demActor->SetMapper(demMapper);

  // Create the RenderWindow, Renderer and the DEM + path actors.

  vtkSmartPointer<vtkRenderer> ren1 =
    vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renWin =
    vtkSmartPointer<vtkRenderWindow>::New();
  renWin->AddRenderer(ren1);
  vtkSmartPointer<vtkRenderWindowInteractor> iren =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  iren->SetRenderWindow(renWin);

  // Add the actors to the renderer, set the background and size

  renWin->SetSize(600,600);
  ren1->AddActor(demActor);
  ren1->GetActiveCamera()->SetViewUp(0, 0, 1);
  ren1->GetActiveCamera()->SetPosition(-99900, -21354, 131801);
  ren1->GetActiveCamera()->SetFocalPoint(41461, 41461, 2815);
  ren1->ResetCamera();
  ren1->GetActiveCamera()->Dolly(1.2);
  ren1->ResetCameraClippingRange();

  // Here comes the contour widget stuff.....

  vtkSmartPointer<vtkContourWidget> contourWidget =
    vtkSmartPointer<vtkContourWidget>::New();
  vtkOrientedGlyphContourRepresentation *rep =
      vtkOrientedGlyphContourRepresentation::SafeDownCast(
                        contourWidget->GetRepresentation());
  rep->GetLinesProperty()->SetColor(1.0, 0.0, 0.0);
  contourWidget->SetInteractor(iren);

  // Set the point placer to the one used for terrains...

  vtkSmartPointer<vtkTerrainDataPointPlacer>  pointPlacer =
    vtkSmartPointer<vtkTerrainDataPointPlacer>::New();
  pointPlacer->AddProp(demActor);    // the actor(s) containing the terrain.
  rep->SetPointPlacer(pointPlacer);

  // Set a terrain interpolator. Interpolates points as they are placed,
  // so that they lie on the terrain.

  vtkSmartPointer<vtkTerrainContourLineInterpolator> interpolator
          = vtkSmartPointer<vtkTerrainContourLineInterpolator>::New();
  rep->SetLineInterpolator(interpolator);
  interpolator->SetImageData(demReader->GetOutput());

  // Set the default projection mode to hug the terrain, unless user
  // overrides it.
  //
  interpolator->GetProjector()->SetProjectionModeToHug();
  for (int i = 0; i < argc-1; i++)
    {
    if (strcmp("-ProjectionMode", argv[i]) == 0)
      {
      interpolator->GetProjector()->SetProjectionMode(atoi(argv[i+1]));
      }
    if (strcmp("-HeightOffset", argv[i]) == 0)
      {
      interpolator->GetProjector()->SetHeightOffset(atoi(argv[i+1]));
      pointPlacer->SetHeightOffset(atof(argv[i+1]));
      }
    if (strcmp("-InitialPath", argv[i]) == 0)
      {
      // If we had an input poly as an initial path, build a contour
      // widget from that path.
      //
      vtkSmartPointer<vtkPolyDataReader> terrainPathReader =
        vtkSmartPointer<vtkPolyDataReader>::New();
      terrainPathReader->SetFileName(argv[i+1]);
      terrainPathReader->Update();
      contourWidget->Initialize( terrainPathReader->GetOutput(), 0 );
      }
    }

  contourWidget->EnabledOn();

  vtkSmartPointer<vtkInteractorEventRecorder> recorder =
    vtkSmartPointer<vtkInteractorEventRecorder>::New();
  recorder->SetInteractor(iren);
  recorder->ReadFromInputStringOn();
  recorder->SetInputString(TerrainPolylineEditorLog);
  recorder->EnabledOn();

  renWin->Render();
  iren->Initialize();

  recorder->Play();

  recorder->Off();

  iren->Start();

  return EXIT_SUCCESS;
}