檢視 $element total/$photon element pass 的原始碼

$element_total  or $photon_element pass are the same commands. It defines the maximum number of elements that photon will go through. <br>
Because the 2D ray tracing program is based on FET mesh element. So the photon will propagate through each elements. Sometimes it will goes
into infinity loop if the total reflection condition is occurred. $element_total defines when the simulation program stops. 

Example:<br>
   $element_total
   total_photon_number

Example:<br>

   $element_total
   10000000

  Total simulated element number photon past through is 10000000

<br>'''<big><big>The $element total/$photon element pass setting in GUI interface is here</big></big>''' <br>
Press '''Ray Tracing''' and fill in the field for the '''Stop element step''' as needed!<br>
[[檔案:2D_element total_fig1.jpg|1200px]]