blob: bea26a346e07e9ffcedaea89d0bd35bed34581db (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
#ifndef CAMERAPOSITIONER_P_H
#define CAMERAPOSITIONER_P_H
#include "qdatavis3dglobal.h"
class QMatrix4x4;
class QVector3D;
class QPoint;
class QPointF;
QTCOMMERCIALDATAVIS3D_BEGIN_NAMESPACE
class CameraHelper
{
public:
// How fast camera rotates when mouse is dragged. Default is 100.
static void setRotationSpeed(int speed);
// Set camera rotation in degrees
static void setCameraRotation(const QPointF &rotation);
// Set default camera orientation. Position's x and y should be 0.
static void setDefaultCameraOrientation(const QVector3D &defaultPosition
, const QVector3D &defaultTarget
, const QVector3D &defaultUp);
// Calculate view matrix based on rotation and zoom
static QMatrix4x4 calculateViewMatrix(const QPoint &mousePos, int zoom
, int screenWidth, int screenHeight);
// Calcluate light position based on rotation. Call after calling calculateViewMatrix to get
// up-to-date position
static QVector3D calculateLightPosition(const QVector3D &lightPosition);
static void updateMousePos(const QPoint &mousePos);
};
QTCOMMERCIALDATAVIS3D_END_NAMESPACE
#endif
|
