CTPPSPixelSimTopology.cc

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#include "Geometry/VeryForwardGeometry/interface/CTPPSPixelSimTopology.h"

CTPPSPixelSimTopology::CTPPSPixelSimTopology() {
  active_edge_x_ = simX_width_ * 0.5 - phys_active_edge_dist_;
  active_edge_y_ = simY_width_ * 0.5 - phys_active_edge_dist_;
}

CTPPSPixelSimTopology::PixelInfo CTPPSPixelSimTopology::getPixelsInvolved(
    double x, double y, double sigma, double& hit_pos_x, double& hit_pos_y) const {
  //hit position wrt the bottom left corner of the sensor (-8.3, -12.2) in sensor view, rocs behind
  hit_pos_x = x + simX_width_ / 2.;
  hit_pos_y = y + simY_width_ / 2.;
  if (!(hit_pos_x * hit_pos_y > 0))
    throw cms::Exception("CTPPSPixelSimTopology") << "out of reference frame";

  double hit_factor = activeEdgeFactor(x, y);

  unsigned int interested_row = row(x);
  unsigned int interested_col = col(y);
  double low_pixel_range_x, high_pixel_range_x, low_pixel_range_y, high_pixel_range_y;
  pixelRange(
      interested_row, interested_col, low_pixel_range_x, high_pixel_range_x, low_pixel_range_y, high_pixel_range_y);

  return CTPPSPixelSimTopology::PixelInfo(low_pixel_range_x,
                                          high_pixel_range_x,
                                          low_pixel_range_y,
                                          high_pixel_range_y,
                                          hit_factor,
                                          interested_row,
                                          interested_col);
}