I was plotting graphs in gdl window in Ubuntu 12.04.
I dont know how to export the graph into any image file.??
How to plot multiple plots in GDl ???
To save a plot in a postscript file, you do:
GDL> set_plot, 'ps'
GDL> device, /close
The same works for 'svg'.
To bring back X output, just do set_plot, 'x'.
To open a new window, use "window"
Thanks for the instructions.
Which image formats are available in gdl ?
How can i change the colour of the graphic window ??
How can i plot two functions having same x axis range but different y value, in a same window...?
If you're asking for raster image formats, you can use JPEG, PNG, TIFF, BMP, ... The corresponding routines are: WRITE_PNG, READ_PNG, QUERY_PNG, ...
If you want to save a plot into a raster image, first use the 'z' terminal (i.e. set_plot, 'z') and then write to a file by acquireing the data from the z buffer, e.g.:
GDL> set_plot, 'z'
GDL> plot, sin(findgen(20))
GDL> write_png, 'plik.png', tvrd()
To change the backgroud color of a plot, you can use the BACKGROUND keyword of the PLOT routine.
To plot a second dataset, you can use the OPLOT procedure.
Thanks a lot for the reply. Its now way bit eaiser to plot in gdl. Thanks for this freeware.
Me once again..
How can i write something against a plot in GDL ??
I want to name the vertical lines.
If i want to name the line at 5 to be 'max'
and line at 20 to be 'min'
How can i do that ?
Try XYOUTS. Here are some docs:
it is working perfectly in GDL
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