m (→General options for transformation composition:) |
m (→Options for spherical projection and deprojection:) |
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=== Options for spherical projection and deprojection: === | === Options for spherical projection and deprojection: === | ||
− | : '''--wcs''' [sin|arc|tan],ra=<R>,dec=<D>,[degrees|radians|scale= | + | : '''--wcs''' [sin|arc|tan],ra=<R>,dec=<D>,[degrees|radians|scale=>S< |
− | :: This set of directives specify the common parameters of the spherical projection or deprojection. The sin, arc and tan directives set the type of projection to orthographic, arc and gnomonic, respectively. The values after ra and dec (<R> and <D>) specify the center of the projection (right ascension and declination, respectively, in degrees). The degrees, radians or the scale= | + | :: This set of directives specify the common parameters of the spherical projection or deprojection. The sin, arc and tan directives set the type of projection to orthographic, arc and gnomonic, respectively. The values after ra and dec (<R> and <D>) specify the center of the projection (right ascension and declination, respectively, in degrees). The degrees, radians or the scale=>S< directives specify the scaling of the output. The directive degrees is equivalent to set scale=57.29577951308232087721 (180 over \Pi), this is the default. The directive radians is equivalent to set scale=1. |
: '''--col-radec''' <r>,<d> | : '''--col-radec''' <r>,<d> | ||
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: '''--col-out''' <>,<> | : '''--col-out''' <>,<> | ||
− | :: Column indices for the output values (which are X and Y for projection and RA, DEC for deprojection). | + | :: Column indices for the output values (which are X and Y for projection and RA, DEC for deprojection). |
=== Options for fitting WCS information: === | === Options for fitting WCS information: === |