---
name: "tlp_Camera"
section: "3tulip"
platform: "linux"
package: "tulip-doc"
version: "3.1.2-2.3"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/tlp_Camera"
---

# tlp\_Camera(3tulip)

## NAME

tlp::Camera -

## SYNOPSIS

`#include <Camera.h>`

### Public Member Functions

**Camera** (**GlScene** \*scene, Coord center=Coord(0, 0, 0), Coord eyes=Coord(0, 0, 10), Coord up=Coord(0,-1, 0), double zoomFactor=0.5, double sceneRadius=10)\
 **Camera** (**GlScene** \*scene, bool d3)\
 void **setScene** (**GlScene** \*scene)\
 **GlScene** \* **getScene** ()\
 void **move** (float speed)\
 void **strafeLeftRight** (float speed)\
 void **strafeUpDown** (float speed)\
 void **rotate** (float angle, float x, float y, float z)\
 bool **is3D** ()\
 Vector\< int, 4 \> **getViewport** ()\
 void **initGl** ()\
 void **initLight** ()\
 void **initProjection** (const Vector\< int, 4 \> &viewport, bool reset=true)\
 void **initProjection** (bool reset=true)\
 void **initModelView** ()\
 void **setSceneRadius** (double sceneRadius)\
 double **getSceneRadius** ()\
 void **setZoomFactor** (double zoomFactor)\
 double **getZoomFactor** ()\
 void **setEyes** (const Coord &eyes)\
 Coord **getEyes** ()\
 void **setCenter** (const Coord &center)\
 Coord **getCenter** ()\
 void **setUp** (const Coord &up)\
 Coord **getUp** ()\
 void **addObjectTransformation** (const Coord &translation, const Coord &scale, const Coord &baseCoord)\
 void **getObjectTransformation** (std::vector\< Coord \> &translation, std::vector\< Coord \> &scale, std::vector\< Coord \> &objectCoord)\
 bool **haveObjectTransformation** ()\
 void **getModelviewMatrix** (Matrix\< float, 4 \> &modelviewMatrix)\
 void **getProjectionMatrix** (Matrix\< float, 4 \> &projectionMatrix)\
 void **getTransformMatrix** (Matrix\< float, 4 \> &transformMatrix)\
 void **getProjAndMVMatrix** (const Vector\< int, 4 \> &viewport, Matrix\< float, 4 \> &projectionMatrix, Matrix\< float, 4 \> &modelviewMatrix)\
 void **getTransformMatrix** (const Vector\< int, 4 \> &viewport, Matrix\< float, 4 \> &transformMatrix)\
 Coord **screenTo3DWorld** (const Coord &point)\
 Coord **worldTo2DScreen** (const Coord &obj)\
 void **getXML** (xmlNodePtr rootNode)\
 void **setWithXML** (xmlNodePtr rootNode)\

## Constructor & Destructor Documentation

### tlp::Camera::Camera (GlScene \* scene, Coord center = `Coord(0, 0, 0)`, Coord eyes = `Coord(0, 0, 10)`, Coord up = `Coord(0,-1, 0)`, double zoomFactor = `0.5`, double sceneRadius = `10`) Constructor

### tlp::Camera::Camera (GlScene \* scene, bool d3) Constructor : use for 2D camera

## Member Function Documentation

### void tlp::Camera::addObjectTransformation (const Coord & translation, const Coord & scale, const Coord & baseCoord) Set translate/scale transformation of object It use to compute lod of nodes/edges in metanodes

### Coord tlp::Camera::getCenter ()` [inline]` Return the center

### Coord tlp::Camera::getEyes ()` [inline]` Return the eyes

### void tlp::Camera::getModelviewMatrix (Matrix\< float, 4 \> & modelviewMatrix)` [inline]` Get the modelview matrix

### void tlp::Camera::getObjectTransformation (std::vector\< Coord \> & translation, std::vector\< Coord \> & scale, std::vector\< Coord \> & objectCoord) Get translate/scale transformation of object It use to compute lod of nodes/edges in metanodes

### void tlp::Camera::getProjAndMVMatrix (const Vector\< int, 4 \> & viewport, Matrix\< float, 4 \> & projectionMatrix, Matrix\< float, 4 \> & modelviewMatrix) Get the projection and the modelview matrix generated with the given viewport

### void tlp::Camera::getProjectionMatrix (Matrix\< float, 4 \> & projectionMatrix)` [inline]` Get the projection matrix

### GlScene\* tlp::Camera::getScene ()` [inline]` Return the camera's scene

### double tlp::Camera::getSceneRadius ()` [inline]` Return the scene radius

### void tlp::Camera::getTransformMatrix (const Vector\< int, 4 \> & viewport, Matrix\< float, 4 \> & transformMatrix) Get the transform matrix generated with the given viewport

### void tlp::Camera::getTransformMatrix (Matrix\< float, 4 \> & transformMatrix)` [inline]` Get the transform matrix : transformMatrix = projectionMatrix \* modelviewMatrix

### Coord tlp::Camera::getUp ()` [inline]` Return the up vector

### Vector\<int, 4\> tlp::Camera::getViewport () Return the viewport of the attached scene

### void tlp::Camera::getXML (xmlNodePtr rootNode) Get the camera's data in XML form

### double tlp::Camera::getZoomFactor ()` [inline]` Return the zoom factor

### bool tlp::Camera::haveObjectTransformation () Return true if object transformation is set

### void tlp::Camera::initGl () Init Gl parameters

### void tlp::Camera::initLight () Init light

### void tlp::Camera::initModelView () Init modelview

### void tlp::Camera::initProjection (bool reset = `true`) Init projection with the scene viewport. Load identity matrix if reset is set as true

### void tlp::Camera::initProjection (const Vector\< int, 4 \> & viewport, bool reset = `true`) Init projection with the gived viewport. Load identity matrix if reset is set as true

### bool tlp::Camera::is3D ()` [inline]` Return if the camera is a 3D one

### void tlp::Camera::move (float speed) This moves the camera forward or backward depending on the speed

### void tlp::Camera::rotate (float angle, float x, float y, float z) This rotates the camera's eyes around the center depending on the values passed in.

### Coord tlp::Camera::screenTo3DWorld (const Coord & point) Return the 3D world coordinate for the givedn screen point

### void tlp::Camera::setCenter (const Coord & center)` [inline]` Set the center

### void tlp::Camera::setEyes (const Coord & eyes)` [inline]` Set the eye

### void tlp::Camera::setScene (GlScene \* scene) Set the camera's scene : the viewport is store in the scene, so we must attach camera to a scene

### void tlp::Camera::setSceneRadius (double sceneRadius)` [inline]` Set the scene radius

### void tlp::Camera::setUp (const Coord & up)` [inline]` Set the up vector

### void tlp::Camera::setWithXML (xmlNodePtr rootNode) Set the camera's data with XML

### void tlp::Camera::setZoomFactor (double zoomFactor)` [inline]` Set the zoom factor

### void tlp::Camera::strafeLeftRight (float speed) This strafes the camera left and right depending on the speed (-/+)

### void tlp::Camera::strafeUpDown (float speed) This strafes the camera up and down depending on the speed (-/+)

### Coord tlp::Camera::worldTo2DScreen (const Coord & obj) Return the screen position for the given 3D coordinate

## Author

Generated automatically by Doxygen for Tulip Open GL Library from the source code.