今天看代码看到小坐标，觉得还不错，找了一下资料
使用的头文件是vtkOrientationMarkerWidget.h
具体使用如下：
/*==========================================
Program: Visualization Toolkit
Module: TestOrientationMarkerWidget.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 "vtkActor.h"
#include "vtkAnnotatedCubeActor.h"
#include "vtkAppendPolyData.h"
#include "vtkAxesActor.h"
#include "vtkCamera.h"
#include "vtkCaptionActor2D.h"
#include "vtkCellArray.h"
#include "vtkInteractorEventRecorder.h"
#include "vtkMath.h"
#include "vtkOrientationMarkerWidget.h"
#include "vtkPoints.h"
#include "vtkPolyData.h"
#include "vtkPolyDataMapper.h"
#include "vtkPropAssembly.h"
#include "vtkPropCollection.h"
#include "vtkProperty.h"
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkTextProperty.h"
#include "vtkTransform.h"
#include "vtkTransformPolyDataFilter.h"
#include "vtkTubeFilter.h"
const char TestOMWidgetEventLog[] =
"# StreamVersion 1\n"
"CharEvent 215 191 0 0 98 1 b\n"
"KeyReleaseEvent 215 191 0 0 98 1 b\n"
"RightButtonPressEvent 215 191 0 0 0 0 b\n"
"TimerEvent 215 191 0 0 0 0 b\n"
"MouseMoveEvent 216 191 0 0 0 0 b\n"
"TimerEvent 216 191 0 0 0 0 b\n"
"MouseMoveEvent 216 192 0 0 0 0 b\n"
"TimerEvent 216 192 0 0 0 0 b\n"
"MouseMoveEvent 216 193 0 0 0 0 b\n"
"TimerEvent 216 193 0 0 0 0 b\n"
"MouseMoveEvent 216 194 0 0 0 0 b\n"
"TimerEvent 216 194 0 0 0 0 b\n"
"MouseMoveEvent 216 195 0 0 0 0 b\n"
"TimerEvent 216 195 0 0 0 0 b\n"
"MouseMoveEvent 216 196 0 0 0 0 b\n"
"TimerEvent 216 196 0 0 0 0 b\n"
"MouseMoveEvent 216 197 0 0 0 0 b\n"
"TimerEvent 216 197 0 0 0 0 b\n"
"MouseMoveEvent 216 198 0 0 0 0 b\n"
"TimerEvent 216 198 0 0 0 0 b\n"
"MouseMoveEvent 216 199 0 0 0 0 b\n"
"TimerEvent 216 199 0 0 0 0 b\n"
"RightButtonReleaseEvent 216 199 0 0 0 0 b\n"
"MouseMoveEvent 216 199 0 0 0 0 b\n"
"KeyPressEvent 216 199 0 0 116 1 t\n"
"CharEvent 216 199 0 0 116 1 t\n"
"KeyReleaseEvent 216 199 0 0 116 1 t\n"
"RightButtonPressEvent 216 199 0 0 0 0 t\n"
"MouseMoveEvent 216 200 0 0 0 0 t\n"
"MouseMoveEvent 219 240 0 0 0 0 t\n"
"RightButtonReleaseEvent 219 240 0 0 0 0 t\n"
"MouseMoveEvent 185 139 0 0 0 0 t\n"
"LeftButtonPressEvent 185 139 0 0 0 0 t\n"
"MouseMoveEvent 187 139 0 0 0 0 t\n"
"MouseMoveEvent 199 139 0 0 0 0 t\n"
"MouseMoveEvent 237 138 0 0 0 0 t\n"
"MouseMoveEvent 250 137 0 0 0 0 t\n"
"MouseMoveEvent 259 133 0 0 0 0 t\n"
"MouseMoveEvent 276 119 0 0 0 0 t\n"
"MouseMoveEvent 282 119 0 0 0 0 t\n"
"MouseMoveEvent 269 136 0 0 0 0 t\n"
"MouseMoveEvent 241 166 0 0 0 0 t\n"
"MouseMoveEvent 218 199 0 0 0 0 t\n"
"MouseMoveEvent 173 220 0 0 0 0 t\n"
"MouseMoveEvent 152 230 0 0 0 0 t\n"
"MouseMoveEvent 135 232 0 0 0 0 t\n"
"MouseMoveEvent 124 233 0 0 0 0 t\n"
"MouseMoveEvent 111 227 0 0 0 0 t\n"
"MouseMoveEvent 96 218 0 0 0 0 t\n"
"MouseMoveEvent 87 213 0 0 0 0 t\n"
"MouseMoveEvent 81 212 0 0 0 0 t\n"
"MouseMoveEvent 60 215 0 0 0 0 t\n"
"MouseMoveEvent 51 226 0 0 0 0 t\n"
"MouseMoveEvent 44 246 0 0 0 0 t\n"
"MouseMoveEvent 40 263 0 0 0 0 t\n"
"MouseMoveEvent 39 277 0 0 0 0 t\n"
"MouseMoveEvent 39 299 0 0 0 0 t\n"
"MouseMoveEvent 44 313 0 0 0 0 t\n"
"MouseMoveEvent 52 324 0 0 0 0 t\n"
"MouseMoveEvent 59 330 0 0 0 0 t\n"
"MouseMoveEvent 67 332 0 0 0 0 t\n"
"MouseMoveEvent 77 332 0 0 0 0 t\n"
"MouseMoveEvent 99 331 0 0 0 0 t\n"
"MouseMoveEvent 123 331 0 0 0 0 t\n"
"MouseMoveEvent 138 335 0 0 0 0 t\n"
"MouseMoveEvent 156 340 0 0 0 0 t\n"
"MouseMoveEvent 175 345 0 0 0 0 t\n"
"MouseMoveEvent 188 349 0 0 0 0 t\n"
"MouseMoveEvent 199 352 0 0 0 0 t\n"
"MouseMoveEvent 222 354 0 0 0 0 t\n"
"MouseMoveEvent 237 356 0 0 0 0 t\n"
"MouseMoveEvent 253 356 0 0 0 0 t\n"
"MouseMoveEvent 259 356 0 0 0 0 t\n"
"MouseMoveEvent 274 352 0 0 0 0 t\n"
"MouseMoveEvent 278 350 0 0 0 0 t\n"
"MouseMoveEvent 285 347 0 0 0 0 t\n"
"MouseMoveEvent 289 343 0 0 0 0 t\n"
"MouseMoveEvent 296 335 0 0 0 0 t\n"
"MouseMoveEvent 306 325 0 0 0 0 t\n"
"MouseMoveEvent 313 316 0 0 0 0 t\n"
"MouseMoveEvent 322 304 0 0 0 0 t\n"
"MouseMoveEvent 328 291 0 0 0 0 t\n"
"MouseMoveEvent 331 285 0 0 0 0 t\n"
"MouseMoveEvent 333 277 0 0 0 0 t\n"
"MouseMoveEvent 335 267 0 0 0 0 t\n"
"MouseMoveEvent 337 262 0 0 0 0 t\n"
"LeftButtonReleaseEvent 337 262 0 0 0 0 t\n"
"MouseMoveEvent 133 119 0 0 0 0 t\n"
"LeftButtonPressEvent 133 119 0 0 0 0 t\n"
"MouseMoveEvent 134 119 0 0 0 0 t\n"
"MouseMoveEvent 139 125 0 0 0 0 t\n"
"MouseMoveEvent 145 131 0 0 0 0 t\n"
"MouseMoveEvent 156 141 0 0 0 0 t\n"
"MouseMoveEvent 168 146 0 0 0 0 t\n"
"MouseMoveEvent 211 158 0 0 0 0 t\n"
"MouseMoveEvent 253 163 0 0 0 0 t\n"
"MouseMoveEvent 300 167 0 0 0 0 t\n"
"MouseMoveEvent 345 172 0 0 0 0 t\n"
"MouseMoveEvent 370 179 0 0 0 0 t\n"
"MouseMoveEvent 384 180 0 0 0 0 t\n"
"MouseMoveEvent 396 182 0 0 0 0 t\n"
"LeaveEvent 402 183 0 0 0 0 t\n"
"MouseMoveEvent 402 183 0 0 0 0 t\n"
"MouseMoveEvent 408 182 0 0 0 0 t\n"
"EnterEvent 388 182 0 0 0 0 t\n"
"MouseMoveEvent 388 182 0 0 0 0 t\n"
"MouseMoveEvent 358 193 0 0 0 0 t\n"
"MouseMoveEvent 327 227 0 0 0 0 t\n"
"MouseMoveEvent 307 265 0 0 0 0 t\n"
"MouseMoveEvent 290 325 0 0 0 0 t\n"
"MouseMoveEvent 281 367 0 0 0 0 t\n"
"MouseMoveEvent 280 396 0 0 0 0 t\n"
"LeaveEvent 280 400 0 0 0 0 t\n"
"MouseMoveEvent 280 400 0 0 0 0 t\n"
"MouseMoveEvent 240 401 0 0 0 0 t\n"
"EnterEvent 230 396 0 0 0 0 t\n"
"MouseMoveEvent 230 396 0 0 0 0 t\n"
"MouseMoveEvent 178 371 0 0 0 0 t\n"
"MouseMoveEvent 120 351 0 0 0 0 t\n"
"MouseMoveEvent 94 341 0 0 0 0 t\n"
"MouseMoveEvent 68 337 0 0 0 0 t\n"
"MouseMoveEvent 58 332 0 0 0 0 t\n"
"MouseMoveEvent 47 319 0 0 0 0 t\n"
"MouseMoveEvent 42 296 0 0 0 0 t\n"
"MouseMoveEvent 44 255 0 0 0 0 t\n"
"MouseMoveEvent 64 223 0 0 0 0 t\n"
"MouseMoveEvent 86 195 0 0 0 0 t\n"
"MouseMoveEvent 102 172 0 0 0 0 t\n"
"MouseMoveEvent 111 159 0 0 0 0 t\n"
"MouseMoveEvent 115 153 0 0 0 0 t\n"
"MouseMoveEvent 116 138 0 0 0 0 t\n"
"MouseMoveEvent 110 124 0 0 0 0 t\n"
"MouseMoveEvent 99 111 0 0 0 0 t\n"
"MouseMoveEvent 93 104 0 0 0 0 t\n"
"MouseMoveEvent 92 102 0 0 0 0 t\n"
"LeftButtonReleaseEvent 92 102 0 0 0 0 t\n"
"MouseMoveEvent 92 102 0 0 0 0 t\n"
"MouseMoveEvent 168 179 0 0 0 0 t\n"
"LeftButtonPressEvent 168 179 0 0 0 0 t\n"
"MouseMoveEvent 167 178 0 0 0 0 t\n"
"MouseMoveEvent 162 172 0 0 0 0 t\n"
"MouseMoveEvent 153 164 0 0 0 0 t\n"
"MouseMoveEvent 148 158 0 0 0 0 t\n"
"MouseMoveEvent 140 150 0 0 0 0 t\n"
"MouseMoveEvent 135 145 0 0 0 0 t\n"
"MouseMoveEvent 131 141 0 0 0 0 t\n"
"MouseMoveEvent 125 135 0 0 0 0 t\n"
"MouseMoveEvent 123 132 0 0 0 0 t\n"
"MouseMoveEvent 121 131 0 0 0 0 t\n"
"MouseMoveEvent 120 129 0 0 0 0 t\n"
"LeftButtonReleaseEvent 120 129 0 0 0 0 t\n"
"MouseMoveEvent 120 129 0 0 0 0 t\n"
"MouseMoveEvent 116 22 0 0 0 0 t\n"
"LeftButtonPressEvent 116 22 0 0 0 0 t\n"
"MouseMoveEvent 117 22 0 0 0 0 t\n"
"MouseMoveEvent 119 20 0 0 0 0 t\n"
"MouseMoveEvent 130 10 0 0 0 0 t\n"
"MouseMoveEvent 143 2 0 0 0 0 t\n"
"MouseMoveEvent 145 0 0 0 0 0 t\n"
"LeaveEvent 146 -1 0 0 0 0 t\n"
"MouseMoveEvent 146 -1 0 0 0 0 t\n"
"MouseMoveEvent 159 -9 0 0 0 0 t\n"
"MouseMoveEvent 162 -11 0 0 0 0 t\n"
"MouseMoveEvent 166 -14 0 0 0 0 t\n"
"MouseMoveEvent 169 -17 0 0 0 0 t\n"
"MouseMoveEvent 173 -22 0 0 0 0 t\n"
"MouseMoveEvent 176 -25 0 0 0 0 t\n"
"MouseMoveEvent 177 -25 0 0 0 0 t\n"
"LeftButtonReleaseEvent 177 -25 0 0 0 0 t\n"
"EnterEvent 156 2 0 0 0 0 t\n"
"MouseMoveEvent 156 2 0 0 0 0 t\n"
"MouseMoveEvent 140 25 0 0 0 0 t\n"
"MouseMoveEvent 113 53 0 0 0 0 t\n"
"MouseMoveEvent 92 74 0 0 0 0 t\n"
"MouseMoveEvent 76 89 0 0 0 0 t\n"
"MouseMoveEvent 67 96 0 0 0 0 t\n"
"MouseMoveEvent 61 105 0 0 0 0 t\n"
"MouseMoveEvent 57 111 0 0 0 0 t\n"
"MouseMoveEvent 55 115 0 0 0 0 t\n"
"MouseMoveEvent 53 121 0 0 0 0 t\n"
"MouseMoveEvent 51 126 0 0 0 0 t\n"
"MouseMoveEvent 50 128 0 0 0 0 t\n"
"LeftButtonPressEvent 50 128 0 0 0 0 t\n"
"MouseMoveEvent 50 129 0 0 0 0 t\n"
"MouseMoveEvent 49 133 0 0 0 0 t\n"
"MouseMoveEvent 46 137 0 0 0 0 t\n"
"MouseMoveEvent 42 144 0 0 0 0 t\n"
"MouseMoveEvent 40 149 0 0 0 0 t\n"
"MouseMoveEvent 38 154 0 0 0 0 t\n"
"MouseMoveEvent 35 158 0 0 0 0 t\n"
"MouseMoveEvent 33 161 0 0 0 0 t\n"
"MouseMoveEvent 29 166 0 0 0 0 t\n"
"MouseMoveEvent 27 168 0 0 0 0 t\n"
"MouseMoveEvent 24 168 0 0 0 0 t\n"
"MouseMoveEvent 22 169 0 0 0 0 t\n"
"MouseMoveEvent 20 170 0 0 0 0 t\n"
"MouseMoveEvent 18 170 0 0 0 0 t\n"
"LeftButtonReleaseEvent 18 170 0 0 0 0 t\n"
"MouseMoveEvent 18 170 0 0 0 0 t\n"
"MouseMoveEvent 20 15 0 0 0 0 t\n"
"LeftButtonPressEvent 20 15 0 0 0 0 t\n"
"MouseMoveEvent 19 15 0 0 0 0 t\n"
"MouseMoveEvent 18 13 0 0 0 0 t\n"
"MouseMoveEvent 16 11 0 0 0 0 t\n"
"MouseMoveEvent 15 9 0 0 0 0 t\n"
"MouseMoveEvent 13 7 0 0 0 0 t\n"
"MouseMoveEvent 10 5 0 0 0 0 t\n"
"MouseMoveEvent 9 4 0 0 0 0 t\n"
"LeftButtonReleaseEvent 9 4 0 0 0 0 t\n"
"MouseMoveEvent 9 4 0 0 0 0 t\n"
"MouseMoveEvent 119 82 0 0 0 0 t\n"
"LeftButtonPressEvent 119 82 0 0 0 0 t\n"
"MouseMoveEvent 120 82 0 0 0 0 t\n"
"MouseMoveEvent 126 79 0 0 0 0 t\n"
"MouseMoveEvent 130 75 0 0 0 0 t\n"
"MouseMoveEvent 131 73 0 0 0 0 t\n"
"MouseMoveEvent 133 72 0 0 0 0 t\n"
"MouseMoveEvent 134 72 0 0 0 0 t\n"
"LeftButtonReleaseEvent 134 72 0 0 0 0 t\n"
"MouseMoveEvent 134 72 0 0 0 0 t\n"
"MouseMoveEvent 132 184 0 0 0 0 t\n"
"LeftButtonPressEvent 132 184 0 0 0 0 t\n"
"MouseMoveEvent 130 184 0 0 0 0 t\n"
"MouseMoveEvent 99 179 0 0 0 0 t\n"
"MouseMoveEvent 94 176 0 0 0 0 t\n"
"MouseMoveEvent 83 174 0 0 0 0 t\n"
"MouseMoveEvent 77 186 0 0 0 0 t\n"
"MouseMoveEvent 67 212 0 0 0 0 t\n"
"MouseMoveEvent 65 233 0 0 0 0 t\n"
"MouseMoveEvent 66 244 0 0 0 0 t\n"
"MouseMoveEvent 72 253 0 0 0 0 t\n"
"MouseMoveEvent 86 259 0 0 0 0 t\n"
"MouseMoveEvent 106 266 0 0 0 0 t\n"
"MouseMoveEvent 132 271 0 0 0 0 t\n"
"MouseMoveEvent 145 272 0 0 0 0 t\n"
"MouseMoveEvent 154 264 0 0 0 0 t\n"
"MouseMoveEvent 163 240 0 0 0 0 t\n"
"MouseMoveEvent 169 212 0 0 0 0 t\n"
"MouseMoveEvent 171 199 0 0 0 0 t\n"
"MouseMoveEvent 170 189 0 0 0 0 t\n"
"MouseMoveEvent 146 185 0 0 0 0 t\n"
"MouseMoveEvent 136 188 0 0 0 0 t\n"
"MouseMoveEvent 127 189 0 0 0 0 t\n"
"MouseMoveEvent 123 188 0 0 0 0 t\n"
"LeftButtonReleaseEvent 123 188 0 0 0 0 t\n"
"MouseMoveEvent 123 188 0 0 0 0 t\n"
;
//int TestOrientationMarkerWidget( int, char *[] )
int main(int , char *[])
{
// create an actor out of parts of vtkAxesActor and vtkAnnotatedCubeActor
// to have the widget follow.
// part 1 is a helical spring to test vtkAxesActor SetUserDefinedShaft
//
double dt = vtkMath::Pi() / 20.0;
double t = 0.0;
double x = 0.0;
int nPoints = 120;
double dx = 0.8 / nPoints;
vtkSmartPointer<vtkPoints> points =
vtkSmartPointer<vtkPoints>::New();
vtkSmartPointer<vtkCellArray> line =
vtkSmartPointer<vtkCellArray>::New();
line->InsertNextCell( nPoints + 80 );
int i = 0;
do
{
points->InsertPoint( i, 0.1*cos(t), x, 0.1*sin(t) );
line->InsertCellPoint( i );
t += dt;
}
while( ++i < 40 );
do
{
points->InsertPoint( i, 0.1*cos(t), x, 0.1*sin(t) );
line->InsertCellPoint(i);
t += dt;
x += dx;
}
while( ++i < nPoints + 40 );
do
{
points->InsertPoint( i, 0.1*cos(t), x, 0.1*sin(t) );
line->InsertCellPoint( i );
t += dt;
}
while( ++i < nPoints + 80 );
vtkSmartPointer<vtkPolyData> wiggle =
vtkSmartPointer<vtkPolyData>::New();
wiggle->SetPoints( points );
wiggle->SetLines( line );
vtkSmartPointer<vtkTubeFilter> tube =
vtkSmartPointer<vtkTubeFilter>::New();
tube->SetInputData( wiggle );
tube->SetGenerateTCoordsToOff();
tube->CappingOff();
tube->SetVaryRadiusToVaryRadiusOff();
tube->SetRadius( 0.02 );
tube->SetNumberOfSides( 5 );
tube->Update();
// part 2 is generated from vtkAnnotatedCubeActor to test
// vtkAxesActor SetUserDefinedTip
//
vtkSmartPointer<vtkAnnotatedCubeActor> cube =
vtkSmartPointer<vtkAnnotatedCubeActor>::New();
cube->SetXPlusFaceText ( "V" );
cube->SetXMinusFaceText( "K" );
cube->SetYPlusFaceText ( "T" );
cube->SetZPlusFaceText ( "" );
cube->SetZMinusFaceText( "" );
cube->SetYMinusFaceText( "" );
cube->SetFaceTextScale( 0.666667 );
vtkSmartPointer<vtkPropCollection> props =
vtkSmartPointer<vtkPropCollection>::New();
cube->GetActors( props );
vtkSmartPointer<vtkAppendPolyData> append =
vtkSmartPointer<vtkAppendPolyData>::New();
vtkSmartPointer<vtkTransformPolyDataFilter> transformFilter =
vtkSmartPointer<vtkTransformPolyDataFilter>::New();
vtkSmartPointer<vtkTransform> transform =
vtkSmartPointer<vtkTransform>::New();
transformFilter->SetTransform( transform );
vtkCollectionSimpleIterator sit;
props->InitTraversal( sit );
int nprops = props->GetNumberOfItems();
for ( i = 0; i < nprops; i++ )
{
vtkActor *node = vtkActor::SafeDownCast( props->GetNextProp( sit ) );
// the first prop in the collection will be the cube outline, the last
// will be the text outlines
//
if ( node && (i == 0 || i == (nprops - 1)) )
{
vtkPolyData* poly = vtkPolyData::SafeDownCast(node->GetMapper()->GetInput());
if ( poly )
{
transformFilter->SetInputConnection( node->GetMapper()->GetInputConnection(0, 0) );
transform->Identity();
transform->SetMatrix( node->GetMatrix() );
transform->Scale( 2.0, 2.0, 2.0 );
transformFilter->Update();
vtkSmartPointer<vtkPolyData> newpoly =
vtkSmartPointer<vtkPolyData>::New();
newpoly->DeepCopy( transformFilter->GetOutput() );
append->AddInputData( newpoly );
}
}
}
append->Update();
// the final actor the widget will follow
//
vtkSmartPointer<vtkAxesActor> axes =
vtkSmartPointer<vtkAxesActor>::New();
axes->SetTotalLength( 1.2, 1.2 , 1.2 );
axes->SetUserDefinedTip( append->GetOutput() );
axes->SetTipTypeToUserDefined();
axes->SetNormalizedShaftLength( 0.85, 0.85, 0.85 );
axes->SetNormalizedTipLength( 0.15, 0.15, 0.15 );
axes->AxisLabelsOff();
axes->SetUserDefinedShaft( tube->GetOutput() );
axes->SetShaftTypeToUserDefined();
vtkProperty* property = axes->GetXAxisTipProperty();
property->SetRepresentationToWireframe();
property->SetDiffuse(0);
property->SetAmbient(1);
property->SetColor( 1, 0, 1 );
property = axes->GetYAxisTipProperty();
property->SetRepresentationToWireframe();
property->SetDiffuse(0);
property->SetAmbient(1);
property->SetColor( 1, 1, 0 );
property = axes->GetZAxisTipProperty();
property->SetRepresentationToWireframe();
property->SetDiffuse(0);
property->SetAmbient(1);
property->SetColor( 0, 1, 1 );
// set up the renderer, window, and interactor
//
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
renderer->SetBackground( 0.0980, 0.0980, 0.4392 );
vtkSmartPointer<vtkRenderWindow> renWin =
vtkSmartPointer<vtkRenderWindow>::New();
renWin->AddRenderer( renderer );
renWin->SetSize( 400, 400 );
vtkSmartPointer<vtkRenderWindowInteractor> iren =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
iren->SetRenderWindow( renWin );
renderer->AddViewProp( axes );
// set up an interesting view
//
vtkCamera* camera = renderer->GetActiveCamera();
camera->SetViewUp( 0, 0, 1 );
camera->SetFocalPoint( 0, 0, 0 );
camera->SetPosition( 4.5, 4.5, 2.5 );
renderer->ResetCameraClippingRange();
// the orientation marker passed to the widget will be composed of two
// actors: vtkAxesActor and a vtkAnnotatedCubeActor
//
cube->SetFaceTextScale( 0.65 );
property = cube->GetCubeProperty();
property->SetColor( 0.5, 1, 1 );
property = cube->GetTextEdgesProperty();
property->SetLineWidth( 1 );
property->SetDiffuse( 0 );
property->SetAmbient( 1 );
property->SetColor( 0.1800, 0.2800, 0.2300 );
// this static function improves the appearance of the text edges
// since they are overlaid on a surface rendering of the cube's faces
//
vtkMapper::SetResolveCoincidentTopologyToPolygonOffset();
// anatomic labelling
//
cube->SetXPlusFaceText ( "A" );
cube->SetXMinusFaceText( "P" );
cube->SetYPlusFaceText ( "L" );
cube->SetYMinusFaceText( "R" );
cube->SetZPlusFaceText ( "S" );
cube->SetZMinusFaceText( "I" );
// change the vector text colors
//
property = cube->GetXPlusFaceProperty();
property->SetColor(0, 0, 1);
property->SetInterpolationToFlat();
property = cube->GetXMinusFaceProperty();
property->SetColor(0, 0, 1);
property->SetInterpolationToFlat();
property = cube->GetYPlusFaceProperty();
property->SetColor(0, 1, 0);
property->SetInterpolationToFlat();
property = cube->GetYMinusFaceProperty();
property->SetColor(0, 1, 0);
property->SetInterpolationToFlat();
property = cube->GetZPlusFaceProperty();
property->SetColor(1, 0, 0);
property->SetInterpolationToFlat();
property = cube->GetZMinusFaceProperty();
property->SetColor(1, 0, 0);
property->SetInterpolationToFlat();
vtkSmartPointer<vtkAxesActor> axes2 =
vtkSmartPointer<vtkAxesActor>::New();
// simulate a left-handed coordinate system
//
transform->Identity();
transform->RotateY(90);
axes2->SetShaftTypeToCylinder();
axes2->SetUserTransform( transform );
axes2->SetXAxisLabelText( "w" );
axes2->SetYAxisLabelText( "v" );
axes2->SetZAxisLabelText( "u" );
axes2->SetTotalLength( 1.5, 1.5, 1.5 );
axes2->SetCylinderRadius( 0.500 * axes2->GetCylinderRadius() );
axes2->SetConeRadius ( 1.025 * axes2->GetConeRadius() );
axes2->SetSphereRadius ( 1.500 * axes2->GetSphereRadius() );
vtkTextProperty* tprop = axes2->GetXAxisCaptionActor2D()->
GetCaptionTextProperty();
tprop->ItalicOn();
tprop->ShadowOn();
tprop->SetFontFamilyToTimes();
axes2->GetYAxisCaptionActor2D()->GetCaptionTextProperty()->ShallowCopy( tprop );
axes2->GetZAxisCaptionActor2D()->GetCaptionTextProperty()->ShallowCopy( tprop );
// combine orientation markers into one with an assembly
//
vtkSmartPointer<vtkPropAssembly> assembly =
vtkSmartPointer<vtkPropAssembly>::New();
assembly->AddPart( axes2 );
assembly->AddPart( cube );
// set up the widget
//
vtkSmartPointer<vtkOrientationMarkerWidget> widget =
vtkSmartPointer<vtkOrientationMarkerWidget>::New();
widget->SetOutlineColor( 0.9300, 0.5700, 0.1300 );
widget->SetOrientationMarker( assembly );
widget->SetInteractor( iren );
widget->SetViewport( 0.0, 0.0, 0.4, 0.4 );
widget->SetEnabled( 1 );
widget->InteractiveOff();
widget->InteractiveOn();
// recorder to play back previously events
//
vtkSmartPointer<vtkInteractorEventRecorder> recorder =
vtkSmartPointer<vtkInteractorEventRecorder>::New();
recorder->SetInteractor(iren);
// recorder->SetFileName("record.log");
// recorder->SetKeyPressActivationValue('b');
recorder->ReadFromInputStringOn();
recorder->SetInputString(TestOMWidgetEventLog);
iren->Initialize();
renWin->Render();
recorder->Play();
// Remove the observers so we can go interactive. Without this the "-I"
// testing option fails.
recorder->Off();
iren->Start();
return EXIT_SUCCESS;
}
运行结果如下：
