IDLSkill

General Skills

 * IDL Notes from Tuan Do's Webpage

How to make 2-D Hess Diagram or density plot using IDL
In essence, its a two-dimension histogram plot, so function like Hist_2D, ImageUnder, ImageOver from IDL are necessary.
 * See this note for more details about this general method.


 * Hess.pro from David Niedever@UVirginia is helpful.


 * IM_HESSPLOT.pro from John Moustakas is helpful.
 * The codes are available Here


 * HIST_ND.pro from John Smith is helpful.


 * Dens2D.pro could be helpful.


 * Bin2D.pro from Frank Varosi could be helpful.


 * Plotimage.pro and Oplotimage.pro by Craig Markwardt is helpful.


 * IMDisp.pro by Liam Gumley is helpful.


 * PlotH.pro by David Johnston is helpful.

Contours in IDL

 * ScatCont.pro from Rob Rutten
 * Plots contours where point density exceeds NOUTER points per 2D histogram bin

Transform images into Polar Coordinates

 * cartop.pro and poltoc.pro by George H. Fisher