C++ (Cpp) Matrix3D::copyColumnFrom Examples

Example #1

File: Matrix3DUtils.cpp Project: BobLChen/opengl-es-2d-3d

void Matrix3DUtils::setPosition(Matrix3D &m, const float x, const float y, const float z, const float smooth) {
    if (smooth == 1.0f) {
        _vector.setTo(x, y, z);
        _vector.w = 1.0f;
        m.copyColumnFrom(3, _vector);
    } else {
        m.copyColumnTo(3, _pos);
        _pos.x += (x - _pos.x) * smooth;
        _pos.y += (y - _pos.y) * smooth;
        _pos.z += (z - _pos.z) * smooth;
        m.copyColumnFrom(3, _pos);
    }
}

Example #2

File: Matrix3DUtils.cpp Project: BobLChen/opengl-es-2d-3d

void Matrix3DUtils::translateAxis(Matrix3D &m, const float distance, const Vector3D &axis) {
    m.copyColumnTo(3, _pos);
    _pos.x += distance * axis.x;
    _pos.y += distance * axis.y;
    _pos.z += distance * axis.z;
    m.copyColumnFrom(3, _pos);
}

Example #3

File: Matrix3DUtils.cpp Project: BobLChen/opengl-es-2d-3d

void Matrix3DUtils::translateZ(Matrix3D &m, const float distance) {
    m.copyColumnTo(3, _pos);
    m.copyColumnTo(2, _dir);
    _pos.x += distance * _dir.x;
    _pos.y += distance * _dir.y;
    _pos.z += distance * _dir.z;
    m.copyColumnFrom(3, _pos);
}

Example #4

File: Matrix3DUtils.cpp Project: BobLChen/opengl-es-2d-3d

void Matrix3DUtils::translateY(Matrix3D &m, const float distance) {
    m.copyColumnTo(3, _pos);
    m.copyColumnTo(1, _up);
    _pos.x += distance * _up.x;
    _pos.y += distance * _up.y;
    _pos.z += distance * _up.z;
    m.copyColumnFrom(3, _pos);
}

Example #5

File: Matrix3DUtils.cpp Project: BobLChen/opengl-es-2d-3d

void Matrix3DUtils::translateX(Matrix3D &m, const float distance) {
    m.copyColumnTo(3, _pos);
    m.copyColumnTo(0, _right);
    _pos.x += distance * _right.x;
    _pos.y += distance * _right.y;
    _pos.z += distance * _right.z;
    m.copyColumnFrom(3, _pos);
}

Example #6

File: Matrix3DUtils.cpp Project: BobLChen/opengl-es-2d-3d

void Matrix3DUtils::scaleZ(Matrix3D &m, float scale) {
    if (scale < MIN_SCALE) {
        scale = MIN_SCALE;
    }
    m.copyColumnTo(2, _dir);
    _dir.normalize();
    _dir.scaleBy(scale);
    m.copyColumnFrom(2, _dir);
}

Example #7

File: Matrix3DUtils.cpp Project: BobLChen/opengl-es-2d-3d

void Matrix3DUtils::scaleY(Matrix3D &m, float scale) {
    if (scale < MIN_SCALE) {
        scale = MIN_SCALE;
    }
    m.copyColumnTo(1, _up);
    _up.normalize();
    _up.scaleBy(scale);
    m.copyColumnFrom(1, _up);
}

Example #8

File: Matrix3DUtils.cpp Project: BobLChen/opengl-es-2d-3d

void Matrix3DUtils::scaleX(Matrix3D &m, float scale) {
    if (scale < MIN_SCALE) {
        scale = MIN_SCALE;
    }
    m.copyColumnTo(0, _right);
    _right.normalize();
    _right.scaleBy(scale);
    m.copyColumnFrom(0, _right);
}

Example #9

File: Matrix3DUtils.cpp Project: BobLChen/opengl-es-2d-3d

void Matrix3DUtils::setVectors(Matrix3D &m, const Vector3D &right, const Vector3D &up, const Vector3D &dir) {
    m.copyColumnFrom(0, right);
    m.copyColumnFrom(1, up);
    m.copyColumnFrom(2, dir);
}