#include <vtkTransform.h>
Inheritance diagram for vtkTransform:
Public Methods | |
virtual const char * | GetClassName () |
virtual int | IsA (const char *type) |
void | PrintSelf (ostream &os, vtkIndent indent) |
void | Identity () |
void | Inverse () |
void | Translate (double x, double y, double z) |
void | Translate (const double x[3]) |
void | Translate (const float x[3]) |
void | RotateWXYZ (double angle, double x, double y, double z) |
void | RotateWXYZ (double angle, const double axis[3]) |
void | RotateWXYZ (double angle, const float axis[3]) |
void | RotateX (double angle) |
void | RotateY (double angle) |
void | RotateZ (double angle) |
void | Scale (double x, double y, double z) |
void | Scale (const double s[3]) |
void | Scale (const float s[3]) |
void | SetMatrix (vtkMatrix4x4 *matrix) |
void | SetMatrix (const double elements[16]) |
void | Concatenate (vtkMatrix4x4 *matrix) |
void | Concatenate (const double elements[16]) |
void | Concatenate (vtkLinearTransform *transform) |
void | PreMultiply () |
void | PostMultiply () |
void | GetOrientation (double orient[3]) |
void | GetOrientation (float orient[3]) |
float * | GetOrientation () |
void | GetOrientationWXYZ (double wxyz[4]) |
void | GetOrientationWXYZ (float wxyz[3]) |
float * | GetOrientationWXYZ () |
void | GetPosition (double pos[3]) |
void | GetPosition (float pos[3]) |
float * | GetPosition () |
void | GetScale (double scale[3]) |
void | GetScale (float scale[3]) |
float * | GetScale () |
void | GetInverse (vtkMatrix4x4 *inverse) |
void | GetTranspose (vtkMatrix4x4 *transpose) |
void | Push () |
void | Pop () |
void | SetInput (vtkLinearTransform *input) |
vtkLinearTransform * | GetInput () |
int | CircuitCheck (vtkAbstractTransform *transform) |
vtkAbstractTransform * | GetInverse () |
vtkAbstractTransform * | MakeTransform () |
unsigned long | GetMTime () |
void | MultiplyPoint (const float in[4], float out[4]) |
void | MultiplyPoint (const double in[4], double out[4]) |
void | MultiplyPoints (vtkPoints *inPts, vtkPoints *outPts) |
void | MultiplyVectors (vtkVectors *inVectors, vtkVectors *outVectors) |
void | MultiplyNormals (vtkNormals *inNormals, vtkNormals *outNormals) |
void | Transpose () |
virtual void | SetPoint (float, float, float, float) |
virtual void | SetPoint (float[4]) |
virtual void | SetDoublePoint (double, double, double, double) |
virtual void | SetDoublePoint (double[4]) |
float * | GetPoint () |
double * | GetDoublePoint () |
void | GetPoint (float p[4]) |
void | Multiply4x4 (vtkMatrix4x4 *a, vtkMatrix4x4 *b, vtkMatrix4x4 *c) |
void | Multiply4x4 (const double a[16], const double b[16], double c[16]) |
void | Multiply4x4 (vtkMatrix4x4 &a, vtkMatrix4x4 &b, vtkMatrix4x4 &c) |
void | Concatenate (vtkMatrix4x4 &matrix) |
void | SetMatrix (vtkMatrix4x4 &m) |
void | GetTranspose (vtkMatrix4x4 &transpose) |
void | GetInverse (vtkMatrix4x4 &inverse) |
void | GetOrientation (float *prx, float *pry, float *prz) |
void | GetOrientation (float &rx, float &ry, float &rz) |
void | GetPosition (float *px, float *py, float *pz) |
void | GetPosition (float &x, float &y, float &z) |
void | GetScale (float *psx, float *psy, float *psz) |
void | GetScale (float &x, float &y, float &z) |
Static Public Methods | |
vtkTransform * | New () |
int | IsTypeOf (const char *type) |
vtkTransform * | SafeDownCast (vtkObject *o) |
Protected Methods | |
vtkTransform () | |
~vtkTransform () | |
vtkTransform (const vtkTransform &t) | |
void | operator= (const vtkTransform &) |
void | InternalDeepCopy (vtkAbstractTransform *t) |
void | InternalUpdate () |
Protected Attributes | |
vtkLinearTransform * | Input |
vtkTransformConcatenation * | Concatenation |
vtkTransformConcatenationStack * | Stack |
unsigned long | MatrixUpdateMTime |
float | Point [4] |
double | DoublePoint [4] |
float | ReturnValue [4] |
A vtkTransform can be used to describe the full range of linear (also known as affine) coordinate transformations in three dimensions, which are internally represented as a 4x4 homogeneous transformation matrix. When you create a new vtkTransform, it is always initialized to the identity transformation.
The SetInput() method allows you to set another transform, instead of the identity transform, to be the base transformation. There is a pipeline mechanism to ensure that when the input is modified, the current transformation will be updated accordingly. This pipeline mechanism is also supported by the Concatenate() method.
Most of the methods for manipulating this transformation, e.g. Translate, Rotate, and Concatenate, can operate in either PreMultiply (the default) or PostMultiply mode. In PreMultiply mode, the translation, concatenation, etc. will occur before any transformations which are represented by the current matrix. In PostMultiply mode, the additional transformation will occur after any transformations represented by the current matrix.
This class performs all of its operations in a right handed coordinate system with right handed rotations. Some other graphics libraries use left handed coordinate systems and rotations.
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Check for self-reference. Will return true if concatenating with the specified transform, setting it to be our inverse, or setting it to be our input will create a circular reference. CircuitCheck is automatically called by SetInput(), SetInverse(), and Concatenate(vtkXTransform *). Avoid using this function, it is experimental. Reimplemented from vtkAbstractTransform. |
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Concatenate the specified transform with the current transformation according to PreMultiply or PostMultiply semantics. The concatenation is pipelined, meaning that if any of the transformations are changed, even after Concatenate() is called, those changes will be reflected when you call TransformPoint(). |
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Concatenates the matrix with the current transformation according to PreMultiply or PostMultiply semantics. |
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Return the class name as a string. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkLinearTransform. |
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Get the inverse of this transform. If you modify this transform, the returned inverse transform will automatically update. If you want the inverse of a vtkTransform, you might want to use GetLinearInverse() instead which will type cast the result from vtkAbstractTransform to vtkLinearTransform. Reimplemented from vtkAbstractTransform. |
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Return a matrix which is the inverse of the current transformation matrix. |
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Override GetMTime to account for input and concatenation. Reimplemented from vtkAbstractTransform. |
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Get the x, y, z orientation angles from the transformation matrix as an array of three floating point values. |
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Return the wxyz angle+axis representing the current orientation. |
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Return the position from the current transformation matrix as an array of three floating point numbers. This is simply returning the translation component of the 4x4 matrix. |
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Return the scale factors of the current transformation matrix as an array of three float numbers. These scale factors are not necessarily about the x, y, and z axes unless unless the scale transformation was applied before any rotations. |
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Return a matrix which is the transpose of the current transformation matrix. This is equivalent to the inverse if and only if the transformation is a pure rotation with no translation or scale. |
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Set the transformation to the identity transformation. If the transform has an Input, then the transformation will be reset so that it is the same as the Input. Reimplemented from vtkAbstractTransform. |
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Perform any subclass-specific DeepCopy. Reimplemented from vtkHomogeneousTransform. |
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Perform any subclass-specific Update. Reimplemented from vtkAbstractTransform. |
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Invert the transformation. This will also set a flag so that the transformation will use the inverse of its Input, if an Input has been set. Implements vtkAbstractTransform. |
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Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkLinearTransform. |
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Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkLinearTransform. |
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Make a new transform of the same type. Implements vtkAbstractTransform. |
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For legacy compatibility. Do not use. |
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Use this method only if you wish to compute the transformation in homogeneous (x,y,z,w) coordinates, otherwise use TransformPoint(). This method calls this->GetMatrix()->MultiplyPoint(). |
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These methods are obsolete. Use TransformPoints, TransformVectors, or TransformNormals instead. |
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Create an object with Debug turned off, modified time initialized to zero, and reference counting on. Reimplemented from vtkObject. |
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Deletes the transformation on the top of the stack and sets the top to the next transformation on the stack. |
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Sets the internal state of the transform to PostMultiply. All subsequent operations will occur after those already represented in the current transformation. In homogeneous matrix notation, M = A*M where M is the current transformation matrix and A is the applied matrix. The default is PreMultiply. |
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Sets the internal state of the transform to PreMultiply. All subsequent operations will occur before those already represented in the current transformation. In homogeneous matrix notation, M = M*A where M is the current transformation matrix and A is the applied matrix. The default is PreMultiply. |
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Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes. Reimplemented from vtkLinearTransform. |
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Pushes the current transformation onto the transformation stack. |
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Create a rotation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. The angle is in degrees, and (x,y,z) specifies the axis that the rotation will be performed around. |
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Create a rotation matrix about the X, Y, or Z axis and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. The angle is expressed in degrees. |
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Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkLinearTransform. |
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Create a scale matrix (i.e. set the diagonal elements to x, y, z) and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. |
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Set the input for this transformation. This will be used as the base transformation if it is set. This method allows you to build a transform pipeline: if the input is modified, then this transformation will automatically update accordingly. |
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Set the current matrix directly. This actually calls Identity(), followed by Concatenate(matrix). |
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Do not use these functions -- they are here only to provide compatibility with legacy code. Use TransformPoint() or GetMatrix()->MultiplyPoint() instead. Returns the result of multiplying the currently set Point by the current transformation matrix. Point is expressed in homogeneous coordinates. The setting of the PreMultiplyFlag will determine if the Point is Pre or Post multiplied. |
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Create a translation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. |
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This method is deprecated because 1) it can turn a linear transformation matrix into a perspective transform matrix and 2) there is no way for the transformation pipeline to properly handle it. If the transformation is a pure rotation, then use GetInverse(), otherwise try to work around this method by using GetTranspose(). |