16 .I \-i |
16 .I \-i |
17 option tells it that the file name given is |
17 option tells it that the file name given is |
18 an IES photometry file rather then a Radiance description of a |
18 an IES photometry file rather then a Radiance description of a |
19 luminiare. In this case, Radiance's |
19 luminiare. In this case, Radiance's |
20 .I ies2rad(1) |
20 .I ies2rad(1) |
21 is called with its default settings to convert the IES file into a |
21 is called with its default settings to convert the IES file to a |
22 Radiance object. |
22 Radiance object. |
23 .PP |
23 .PP |
24 The four projections presented are the lower hemisphere |
24 The four projections presented are the lower hemisphere |
25 (displayed in the upper left quadrant), the upper hemisphere |
25 (displayed in the upper left quadrant), the upper hemisphere |
26 (upper right), at the C0\-C180 plane (lower left) and at the |
26 (upper right), the C0\-C180 plane (lower left) and the |
27 C90\-C270 plane (lower right). |
27 C90\-C270 plane (lower right). |
28 .PP |
28 .PP |
29 Only one Radiance luminaire description or IES photometry file |
29 Only one Radiance luminaire description or IES photometry file |
30 may be given. No input is accepted on STDIN. |
30 may be given. No input is accepted on STDIN. |
31 .PP |
31 .PP |
32 The output image in HDR format is produced on STDOUT with |
32 The output image in HDR format is produced on STDOUT with |
33 the default dimensions of 1024 by 1024 pixels. The dimensions |
33 the default dimensions of 1024 by 1024 pixels. The dimensions |
34 may be overwritten with the |
34 may be overwritten with the |
35 .I "\-d dimensions |
35 .I "\-d dimensions |
36 options which takes an integer that is divisible by two. |
36 option which takes an integer that is divisible by two. |
37 .SH "EXAMPLES" |
37 .SH "EXAMPLES" |
38 To render a four\-view image of photometry file ABC123.ies |
38 To render a four\-view image of photometry file ABC123.ies |
39 and save the result to luminaire.hdr |
39 and save the result to luminaire.hdr |
40 .IP "" .2i |
40 .IP "" .2i |
41 ltpict \-i ABC123.ies > luminaire.hdr |
41 ltpict \-i ABC123.ies > luminaire.hdr |