[2] | 1 | ;+ |
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| 2 | ; |
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[142] | 3 | ; @file_comments |
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| 4 | ; function to make plotting symbols much easier. |
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| 5 | ; |
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| 6 | ; @categories |
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[157] | 7 | ; Graphics |
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[2] | 8 | ; |
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[142] | 9 | ; @Keyword circle |
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| 10 | ; circle symbol |
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| 11 | ; |
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| 12 | ; @Keyword TRIANGLE |
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| 13 | ; triangle symbol |
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| 14 | ; |
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| 15 | ; @Keyword DIAMOND |
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[163] | 16 | ; diamond symbol |
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[142] | 17 | ; |
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| 18 | ; @Keyword BOX |
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| 19 | ; box symbol |
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| 20 | ; |
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| 21 | ; @Keyword LINE |
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| 22 | ; line symbol |
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| 23 | ; |
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| 24 | ; @Keyword SCALE |
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| 25 | ; scales the symbol |
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| 26 | ; |
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| 27 | ; @Keyword ANGLE |
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| 28 | ; angle the symbol should be rotated |
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| 29 | ; |
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| 30 | ; @Keyword _EXTRA |
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| 31 | ; extra keywords for usersym. These are thick, color and fill |
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[2] | 32 | ; |
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[142] | 33 | ; @history |
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[2] | 34 | ; Written by: |
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| 35 | ; Ronn Kling |
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| 36 | ; Ronn Kling Consulting |
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| 37 | ; 7038 Westmoreland Dr. |
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| 38 | ; Warrenton, VA 20187 |
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[157] | 39 | ; klingrl\@juno.com |
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[2] | 40 | ; copyright 1999, all rights reserved |
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[142] | 41 | ; |
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| 42 | ; @version |
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| 43 | ; $Id$ |
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| 44 | ; |
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[2] | 45 | ;- |
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| 46 | |
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[97] | 47 | function plotsym, circle=circle, triangle=triangle, diamond=diamond, $ |
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| 48 | angle=angle, box=box, line=line, scale=scale, $ |
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| 49 | _extra=extra |
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[114] | 50 | ; |
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| 51 | compile_opt idl2, strictarrsubs |
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| 52 | ; |
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[2] | 53 | if not keyword_set(scale) then scale=1.0 |
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| 54 | if not keyword_set(angle) then angle=0.0 |
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| 55 | |
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| 56 | if keyword_set(circle) then begin |
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| 57 | theta = findgen(30)/29.*360. |
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| 58 | endif else if keyword_set(triangle) then begin |
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| 59 | theta = [-30.,90.,210., -30.] |
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| 60 | endif else if keyword_set(diamond) then begin |
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| 61 | theta = [0.,90.,180.,270.,0.] |
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| 62 | endif else if keyword_set(box) then begin |
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| 63 | theta = [315.,45.,135.,225.,315.] |
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| 64 | endif else if keyword_set(line) then begin |
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| 65 | theta = [-180.,0.] |
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| 66 | endif |
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| 67 | |
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| 68 | theta = theta + angle |
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| 69 | x = cos(theta * !dtor) * scale |
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| 70 | y = sin(theta * !dtor) * scale |
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| 71 | |
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| 72 | usersym, x,y, _extra=extra |
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| 73 | return,8 |
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| 74 | end |
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