| .TH IM_SINES 3 "10 May 1991" |
| .SH NAME |
| im_sines \- creates a spatial sine wave form |
| .SH SYNOPSIS |
| .B #include <vips/vips.h> |
| |
| .B int im_sines(image, xsize, ysize, horfreq, verfreq) |
| .br |
| .B IMAGE *image; |
| .br |
| .B int xsize, ysize; |
| .br |
| .B double horfreq, verfreq; |
| .SH DESCRIPTION |
| .B im_sines() |
| creates a float one band image of the a sine waveform in two dimensions. |
| The sizes of the created image are xsize by ysize. The number of |
| horizontal and vertical spatial frequencies are determined by the variables |
| horfreq and verfreq respectively. The function is the base for creating |
| displayable sine waves and square waves in two dimensions. |
| .SH RETURN VALUE |
| The function returns 0 on success and -1 on error. |
| .SH SEE\ ALSO |
| im_grey(3). |
| .SH COPYRIGHT |
| .br |
| N. Dessipris |
| .SH AUTHOR |
| N. Dessipris \- 10/05/1991 |
