function () {
      var self = this;
      var start_x = time_x(self.capture_idx.start);
      var end_x = time_x(self.capture_idx.end);
      var end_y = self.h - margin[2];
      var end_attrs = {
        stroke: "#666",
        "stroke-width": "1"
      };
      var label_attrs = {
        fill: "white",
        "font-size": "16",
        "opacity": ".5"
      };
      paper.path(
        "M" + start_x + "," + margin[0] + " " +
        "L" + start_x + "," + end_y).attr(end_attrs);
      var m;
      if (self.pix_per_sec <= 1000) {
        m = 1000;
      } else if (self.pix_per_sec <= 2000) {
        m = 500;
      } else if (self.pix_per_sec <= 3500) {
        m = 250;
      } else if (self.pix_per_sec <= 5000) {
        m = 100;
      } else {
        m = 50;
      }
      for (var i = self.capture_idx.start; i < self.capture_idx.end; i += m) {
        var i_x = time_x(i);
        paper.path(
          "M" + i_x + "," + margin[0] + " " +
          "L" + i_x + "," + end_y
        ).attr({
          stroke: "#444",
          "stroke-width": "1"
        });
        paper.text(i_x, end_y + 10,
          ((i - self.capture_idx.start) / 1000) + "s").attr(label_attrs);
        paper.text(i_x, margin[0] - 20,
          ((i - self.capture_idx.start) / 1000) + "s").attr(label_attrs);
      }
      paper.path(
        "M" + end_x + "," + margin[0] + " " +
        "L" + end_x + "," + end_y
      ).attr(end_attrs);
    }
function () {
      var self = this;
      var start_x = time_x(self.capture_idx.start);
      var end_x = time_x(self.capture_idx.end);
      var end_y = self.h - margin[2];
      var end_attrs = {
        stroke: "#666",
        "stroke-width": "1"
      };
      var label_attrs = {
        fill: "white",
        "font-size": "16",
        "opacity": ".5"
      };
      paper.path(
        "M" + start_x + "," + margin[0] + " " +
        "L" + start_x + "," + end_y).attr(end_attrs);
      var m;
      if (self.pix_per_sec <= 1000) {
        m = 1000;
      } else if (self.pix_per_sec <= 2000) {
        m = 500;
      } else if (self.pix_per_sec <= 3500) {
        m = 250;
      } else if (self.pix_per_sec <= 5000) {
        m = 100;
      } else {
        m = 50;
      }
      for (var i = self.capture_idx.start; i < self.capture_idx.end; i += m) {
        var i_x = time_x(i);
        paper.path(
          "M" + i_x + "," + margin[0] + " " +
          "L" + i_x + "," + end_y
        ).attr({
          stroke: "#444",
          "stroke-width": "1"
        });
        paper.text(i_x, end_y + 10,
          ((i - self.capture_idx.start) / 1000) + "s").attr(label_attrs);
        paper.text(i_x, margin[0] - 20,
          ((i - self.capture_idx.start) / 1000) + "s").attr(label_attrs);
      }
      paper.path(
        "M" + end_x + "," + margin[0] + " " +
        "L" + end_x + "," + end_y
      ).attr(end_attrs);
    }
function ( ) { var self = this ; var start_x = time_x ( self . capture_idx . start ) ; var end_x = time_x ( self . capture_idx . end ) ; var end_y = self . h - margin [ 2 ] ; var end_attrs = { stroke : "#666" , "stroke-width" : "1" } ; var label_attrs = { fill : "white" , "font-size" : "16" , "opacity" : ".5" } ; paper . path ( "M" + start_x + "," + margin [ 0 ] + " " + "L" + start_x + "," + end_y ) . attr ( end_attrs ) ; var m ; if ( self . pix_per_sec <= 1000 ) { m = 1000 ; } else if ( self . pix_per_sec <= 2000 ) { m = 500 ; } else if ( self . pix_per_sec <= 3500 ) { m = 250 ; } else if ( self . pix_per_sec <= 5000 ) { m = 100 ; } else { m = 50 ; } for ( var i = self . capture_idx . start ; i < self . capture_idx . end ; i += m ) { var i_x = time_x ( i ) ; paper . path ( "M" + i_x + "," + margin [ 0 ] + " " + "L" + i_x + "," + end_y ) . attr ( { stroke : "#444" , "stroke-width" : "1" } ) ; paper . text ( i_x , end_y + 10 , ( ( i - self . capture_idx . start ) / 1000 ) + "s" ) . attr ( label_attrs ) ; paper . text ( i_x , margin [ 0 ] - 20 , ( ( i - self . capture_idx . start ) / 1000 ) + "s" ) . attr ( label_attrs ) ; } paper . path ( "M" + end_x + "," + margin [ 0 ] + " " + "L" + end_x + "," + end_y ) . attr ( end_attrs ) ; }
draw scale markings appropriate for the capture
draw scale markings appropriate for the capture