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#ifndef OPENSCAD_CAMERA_H_
#define OPENSCAD_CAMERA_H_
/*
Camera
For usage, see *View.cc / export_png.cc / openscad.cc
There are two different types of cameras represented in this class:
*Gimbal camera - uses Euler Angles, object translation, and viewer distance
*Vector camera - uses 'eye', 'center', and 'up' vectors ('lookat' style)
There are two modes of projection, Perspective and Orthogonal.
*/
#include <vector>
#include <Eigen/Geometry>
class Camera
{
public:
enum CameraType { NONE, GIMBAL, VECTOR } type;
enum ProjectionType { ORTHOGONAL, PERSPECTIVE } projection;
Camera() {
type = Camera::NONE;
projection = Camera::PERSPECTIVE;
}
Camera( enum CameraType e )
{
type = e;
if ( e == Camera::GIMBAL ) {
object_trans << 0,0,0;
object_rot << 35,0,25;
viewer_distance = 500;
} else if ( e == Camera::VECTOR ) {
center << 0,0,0;
Eigen::Vector3d cameradir(1, 1, -0.5);
eye = center - 500 * cameradir;
}
pixel_width = 512;
pixel_height = 512;
projection = Camera::PERSPECTIVE;
}
void setup( std::vector<double> params ) {
if ( params.size() == 7 ) {
type = Camera::GIMBAL;
object_trans << params[0], params[1], params[2];
object_rot << params[3], params[4], params[5];
viewer_distance = params[6];
} else if ( params.size() == 6 ) {
type = Camera::VECTOR;
eye << params[0], params[1], params[2];
center << params[3], params[4], params[5];
} else {
assert( "Gimbal cam needs 7 numbers, Vector camera needs 6" );
}
}
// Vectorcam
Eigen::Vector3d eye;
Eigen::Vector3d center; // (aka 'target')
Eigen::Vector3d up;
// Gimbalcam
Eigen::Vector3d object_trans;
Eigen::Vector3d object_rot;
double viewer_distance;
unsigned int pixel_width;
unsigned int pixel_height;
};
#endif
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