How do I create a contour plot of an image?
Contour plots of FITS images can be created using either make_figure or add_contour:
make_figure("img.fits") make_figure("img.fits", [1,2,3]) make_figure("img.fits", [1,2,3], ["color","red"]) add_contour("img.fits") add_contour("img.fits", [1,2,3]) add_contour("img.fits", [1,2,3], ["color","red"])
These commands create a contour plot of the image img.fits using: a set of default contour levels calculated from the image, the contour levels 1,2,3, and the contour levels 1,2,3 along with using a red color to draw the contours.
The add_ds9_contour routine can be used to draw the contours saved by ds9.
