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   expr_list()

   exec()
   return()
   if()
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   nop()

  Output
   print()
   clear()
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  Math
   abs()
   sign()

   sqr()
   sqrt()

   min()
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   inc()
   dec()

   rand()

   none()
   nan()

   def()
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   is_str()
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   bool()

  Rounding
   round()
   roundup()
   floor()
   ceil()
   trunc()
   center()
   centerex()

   s8()
   u8()
   s16()
   u16()
   s32()
   u32()

  Trigonometric
   pi()
   sin()
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   atan2()

   rad2deg()
   deg2rad()

  Logarithmic
   e()
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   exp10()
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  Bitwise
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  Logical
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  Relational
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   to_motor_uv()

   to_work()
   to_work_xy()
   to_work_uv()

   mm_to_unit()
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   mm_to_setunit()
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   setunit()

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   cmd_get_id()
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   cmd_is_enabled()
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   cmd_exec()

   open_file()
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   start_code()
   test_file()
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   run()

   py_list()
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   set_status()
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   is_ui_ready()

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   msg_show()

   msg_count()
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   msg_click_ok()
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   bubble()

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   dlg_new()
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   dlg_show()
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   dlg_is_valid()
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   dlg_callback()

   dlg_modal()
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   dlg_add_separator()
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   dlg_add_button()

   dlg_comp_pos()
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   dlg_comp_callback()

   dlg_draw_line()
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   dlg_click_apply()
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   dlg_has_btn_apply()
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  File
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  Array
   array_new()
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   array_isvalid()
   array_size()
   array_clear()
   array_resize()
   array_insert()
   array_remove()
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   array_printstring()
   array_printdata()
   array_setstring()
   array_getstring()
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   array_setdata16()
   array_setdata32()
   array_setdata64()
   array_setdataflt32()
   array_setdataflt64()
   array_getdata()
   array_getdata16()
   array_getdata32()
   array_getdata64()
   array_getdataflt32()
   array_getdataflt64()
   array_crc16()
   array_crc32()

  Serial
   serial_list()
   serial_info()
   serial_open()
   serial_close()
   serial_config()
   serial_write()
   serial_writedata()
   serial_writedata16()
   serial_writedata32()
   serial_writearray()
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   serial_readdata()
   serial_readarray()
   serial_readflush()
   serial_addlistener()
   serial_remlistener()

  USB
   usb_list()
   usb_info()
   usb_open()
   usb_close()
   usb_read()
   usb_readdata()
   usb_readarray()
   usb_write()
   usb_writedata()
   usb_writearray()
   usb_addlistener()
   usb_remlistener()

  Hash
   crc16()
   crc32()
   sha256()
   sha256_f()
   md5()
   md5_f()

  Crypt
   aes256_encrypt()
   aes256_encrypt_f()
   aes256_decrypt()
   aes256_decrypt_f()

  Colors
   rgb_to_hue()
   rgb_to_saturation()
   rgb_to_lightness()
   rgb_to_name()

  Camera
   cam_grab()
   cam_color()
   cam_rect()

  Sound
   beep()
   siren()
   sound_load()
   sound_unload()
   sound_play()
   sound_stop()
   sound_is_playing()

  MIDI
   midi_note_on()
   midi_note_off()
   midi_ctrl()
   midi_prog()
   midi_play()
   midi_stop()
   midi_is_playing()

   midiin_channel()
   midiin_prog()
   midiin_note()
   midiin_ctrl()

  Misc
   sleep()

   url()
   rubik()

  PoKeys
   pk_digital()
   pk_analog()

Operators

Events

expr:functions:func-center

center()

Returns the given value unless its absolute value is smaller than the specified threshold, in which case it returns 0.

Syntax

center(value, min)

Parameters

Parameter Type Description
value Number The numeric value to check.
min Number The threshold below which the value becomes zero.

Return Value

  • The input value if its absolute value is greater than or equal to `min`.
  • `0` if the absolute value of `value` is less than `min`.

Examples

center(5, 3);  // returns 5
center(2, 3);  // returns 0
center(-1, 2); // returns 0
center(-4, 2); // returns -4

See also

expr/functions/func-center.txt · Last modified: 2025/03/02 13:55 by andrej

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