hits.cxx File Reference

#include <gtk/gtk.h>
#include <vector>
#include <algorithm>
#include <stdint.h>
#include "event.h"
#include "drawing.h"
#include "geo.h"
#include "status.h"

Go to the source code of this file.

Functions
static bool	by_charge (const hit &a, const hit &b)
	__attribute__ ((unused)) static bool by_time(const hit &a
static void	colorhit (const int32_t adc, float &red, float &green, float &blue, const bool active)
void	draw_hit (cairo_t *cr, const hit &thishit, GtkWidget **edarea)
void	draw_hits (cairo_t **cr, const DRAWPARS *const drawpars, GtkWidget **edarea)

Variables
std::vector< noeevent >	theevents
int	gevi
int	pixx
int	pixy
int	active_plane
int	active_cell
const hit &	b

Function Documentation

__attribute__

(

(unused)

)

const

Referenced by by_charge().

static bool by_charge ( const hit &  a, const hit &  b  )

static

Definition at line 15 of file hits.cxx.

References __attribute__(), a, hit::adc, and b.

Referenced by draw_hits().

{
  return a.adc < b.adc;
}

static void colorhit ( const int32_t  adc, float &  red, float &  green, float &  blue, const bool  active  )

static

Definition at line 28 of file hits.cxx.

References rootlogon::blue, rootlogon::green, art::left(), and red().

Referenced by draw_hit().

{
  const float graycut = 85;

  const float mingray = 0.02, maxgray = 0.3;

  if(adc < graycut) red = green = blue = mingray + (maxgray - mingray)*(adc/graycut);
  else if(adc < 600) blue  = 1.0, red = 0.2, green = 0.3;
  else if(adc < 1400) green = 1, red = blue  = 0;
  else red = 1, green = blue  = 0;

  // Brighten this hit while trying to retain some of its original color, but
  // just make it white if that is what it takes to make a difference.
  if(active){
    const float goal = 1.3;
    const float left = 3 - red - blue - green;
    if(left < goal){
      red = blue = green = 1;
    }
    else{
      red += goal*(1 - red)/left;
      blue += goal*(1 - blue)/left;
      green += goal*(1 - green)/left;
    }
  }
}

void draw_hit	(	cairo_t *	cr,
		const hit &	thishit,
		GtkWidget **	edarea
	)

Definition at line 58 of file hits.cxx.

References active_cell, active_plane, hit::adc, rootlogon::blue, hit::cell, colorhit(), det_to_screen_x(), det_to_screen_y(), rootlogon::green, kX, kY, pixx, pixy, hit::plane, red(), and scintpix_from_pixx().

Referenced by change_highlighted_cell(), and draw_hits().

{
  const noe_view_t V = thishit.plane%2 == 1?kX:kY;

  // Get position of upper left corner.  If the zoom carries this hit entirely
  // out of the view in screen y, don't waste cycles displaying it.
  const int screenx = det_to_screen_x(thishit.plane);
  if(screenx+pixx < 0) return;
  if(screenx      > edarea[V]->allocation.width) return;

  const int screeny = det_to_screen_y(thishit.plane, thishit.cell);
  if(screeny+pixy < 0) return;
  if(screeny      > edarea[V]->allocation.height) return;

  float red, green, blue;

  colorhit(thishit.adc, red, green, blue,
           thishit.plane == active_plane && thishit.cell == active_cell);

  cairo_set_source_rgb(cr, red, green, blue);

  // If we're representing cells with a very small number of pixels,
  // draw all the way across to the next plane in the view to be easier
  // to look at.  If cells are visually large, make them closer to the
  // actual size of the scintillator.
  // XXX how about a yexpand to show the scintillator size in y?
  // XXX are tracks correctly aligned with hits in both expanded and unexpanded
  // styles?  (Probably not!)
  const bool xexpand = pixx <= 3;
  const int epixx = xexpand?pixx:scintpix_from_pixx(pixx);

  // This is the only part of drawing an event that takes any time
  // I have measured drawing a line to be twice as fast as drawing a
  // rectangle of width 1, so it is totally worth it to have a special
  // case.  This really helps with drawing big events.
  if(pixy == 1){
    cairo_move_to(cr, screenx,       screeny+0.5);
    cairo_line_to(cr, screenx+epixx, screeny+0.5);
    cairo_stroke(cr);
  }
  // This is a smaller gain, but it is definitely faster by about 10%.
  else if(pixy == 2){
    cairo_move_to(cr, screenx,       screeny+0.5);
    cairo_line_to(cr, screenx+epixx, screeny+0.5);
    cairo_move_to(cr, screenx,       screeny+1.5);
    cairo_line_to(cr, screenx+epixx, screeny+1.5);
    cairo_stroke(cr);
  }
  else{
    cairo_rectangle(cr, screenx+0.5, screeny+0.5,
                        epixx-1,     pixy-1);
    cairo_fill(cr);
  }
}

void draw_hits	(	cairo_t **	cr,
		const DRAWPARS *const	drawpars,
		GtkWidget **	edarea
	)

Definition at line 116 of file hits.cxx.

References by_charge(), draw_hit(), DRAWPARS::firsttick, gevi, hits(), MECModelEnuComparisons::i, kX, kXorY, kY, DRAWPARS::lasttick, hit::plane, set_eventn_status_progress(), hit::tdc, and theevents.

Referenced by draw_event().

{
  if(theevents[gevi].hits.empty()) return;

  for(int i = 0; i < kXorY; i++) cairo_set_line_width(cr[i], 1.0);

  std::vector<hit> & THEhits = theevents[gevi].hits;

  std::sort(THEhits.begin(), THEhits.end(), by_charge);

  const int big = 100000;
  const bool bigevent = THEhits.size() > big;

  int ndrawn = 0;
  for(unsigned int i = 0; i < THEhits.size(); i++){
    const hit & thishit = THEhits[i];

    if(thishit.tdc < drawpars->firsttick ||
       thishit.tdc > drawpars->lasttick) continue;

    if(bigevent && (++ndrawn)%big == 0)
      set_eventn_status_progress(ndrawn, THEhits.size());

    draw_hit(cr[thishit.plane%2 == 1?kX:kY], thishit, edarea);
  }
}

Variable Documentation

int active_cell

Definition at line 78 of file main.cxx.

Referenced by draw_hit().

int active_plane

Definition at line 78 of file main.cxx.

Referenced by draw_hit().

const hit& b

Initial value:

{
  return a.tdc < b.tdc

Definition at line 21 of file hits.cxx.

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int gevi

Definition at line 76 of file main.cxx.

Referenced by draw_hits().

int pixx

Definition at line 24 of file geo.cxx.

Referenced by draw_hit().

int pixy

Definition at line 24 of file geo.cxx.

Referenced by draw_hit().

std::vector<noeevent> theevents

Definition at line 28 of file noe_module.cc.

Referenced by draw_hits().