48 lines
963 B
Groff
48 lines
963 B
Groff
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.TH IM_COSTRA 3 "24 April 1991"
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.SH NAME
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im_costra, im_sintra, im_tantra,
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im_acostra, im_asintra, im_atantra \- basic trig functions
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.SH SYNOPSIS
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#include <vips/vips.h>
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int im_costra(in, out)
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.br
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IMAGE *in, *out;
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int im_sintra(in, out)
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.br
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IMAGE *in, *out;
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int im_tantra(in, out)
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.br
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IMAGE *in, *out;
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int im_acostra(in, out)
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.br
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IMAGE *in, *out;
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int im_asintra(in, out)
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.br
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IMAGE *in, *out;
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int im_atantra(in, out)
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.br
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IMAGE *in, *out;
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.SH DESCRIPTION
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Basic trig functions. The input image is mapped through either cos(3), sin(3) or
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tan(3) and written to out. All work in degrees.
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The size and number of bands are unchanged, the output type is float, unless
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the input is double, in which case the output is double. Non-complex images
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only!
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.SH RETURN VALUE
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Each function returns 0 on success and -1 on error.
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.SH SEE ALSO
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im_add(3), im_lintra(3), im_abs(3), im_mean(3), im_logtra(3)
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.SH COPYRIGHT
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National Gallery, 1995.
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.SH AUTHOR
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J. Cupitt \- 21/7/93
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