IDL cheat sheet

Version 13.1 by fwilde on 2018/05/28 18:12

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This is an overview of the most commonly used commands during a beamtime.

Sample positioning

IDL command	description	motion
s_stage_x/z	move rotation stage in x/z-direction	relative [ mm ]
s_pos_x/y/z	move sample stage in x/y/z-direction	relative [ mm ]
s_angle, 90	rotate sample around z axis	relative [ deg ]
s_in	move sample to "in" position	predefined
s_out	move sample to "out" position	predefined
s_change	move sample to "change" position	predefined

Detector positioning

IDL command	description	motion
pressure_on	enable detector y movement
o_ccd_dist, 5	move detector in y direction	relative [ mm ]
pressure_off	disable detector movement

Make image

IDL command	description
i=quick(100) & tv_quick, i & draw_box, [ x1, x2 ,z1 ,z2 ]	make an image & show image & draw box
a=quick_abs(100) & tv_quick, a & draw_box, [ x1, x2 ,z1 ,z2 ]	make an absorption image & show image & draw box

Monochromator positioning

IDL command	description	motion
calc_dcm_energy, 10000, /set	set DCM and undulator to 10 keV
dcm_pitch, 0.00001	move 2nd crystal pitch by 0.00001 deg	relative [ deg ]
goto_dcm_pitch, -0.03976	move 2nd crystal pitch to -0.03976 deg	absolute [ deg ]
reflex_opt	move 2nd crystal pitch to optimal flux position