Method update_scale_offset

DSView/pv/view/view.cpp:642–667

}

void View::update_scale_offset()
{   
    int width = get_view_width();
    if (width == 0){
        return;
    }

    if (_device_agent->get_work_mode() != DSO) {
        _maxscale = _session->cur_sampletime() / (width * MaxViewRate);     
        _minscale = (1.0 / _session->cur_snap_samplerate()) / MaxPixelsPerSample;
    }
    else {
        _scale = _session->cur_view_time() / width;     
        _maxscale = 1e9;
        _minscale = 1e-15;
    }

    _scale = max(min(_scale, _maxscale), _minscale);
    _offset = max(min(_offset, get_max_offset()), get_min_offset());

    _preScale = _scale;
    _preOffset = _offset;

    _ruler->update();
    viewport_update();
}

void View::mode_changed()
{