The cursor IDL procedure does not work properly under Mac OS X. To solve this problem, add the following line in your login script (e. g. .bash_profile for example):
defaults write com.apple.x11 wm_click_through -bool true
In order to mix easily images and plots, I have written a routine that modifies the current color table to add at its end a set of defined colors. These colors can be accessed by a set a system variables, listed in the following table. Three system variables describe the new table:
Note that we have of course !nbplotcolors + !nbdrawcolors = !d.table_size
A typical use of this feature would be the following sequence, using the setplotcolors.pro.
loadct, 0
setplotcolors, nbcol=8
tv, bytscl(image, top=!topcolor)
oplot, /device, myx, myy, col=!red
oplot, /device, myotherx, myothery, col=!cyan
Note the use of tv, bytscl(top=!topcolor) instead of tvscl.
| ncolors | system variable | color | ncolors | system variable | color |
|---|---|---|---|---|---|
| 1 | !white | 2 | !black | ||
| 3 | !red | 4 | !green | ||
| 5 | !blue | 6 | !yellow | ||
| 7 | !pink | 8 | !cyan | ||
| 9 | !orange | 10 | !violet | ||
| 11 | !maroon | 12 | !plum | ||
| 13 | !sblue | 14 | !khaki | ||
| 15 | !coral | 16 | !gray |