From c3552ad21e1583a37340489530d09040afacb3b6 Mon Sep 17 00:00:00 2001 From: John Cupitt Date: Wed, 9 May 2018 16:06:20 +0100 Subject: [PATCH] note dzsave angle restrictions see https://github.com/jcupitt/libvips/issues/968 --- libvips/foreign/dzsave.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libvips/foreign/dzsave.c b/libvips/foreign/dzsave.c index 44d3ed82..471ee13d 100644 --- a/libvips/foreign/dzsave.c +++ b/libvips/foreign/dzsave.c @@ -2359,6 +2359,12 @@ vips_foreign_save_dz_buffer_init( VipsForeignSaveDzBuffer *buffer ) * Use @depth to control how low the pyramid goes. This defaults to the * correct setting for the @layout you select. * + * You can rotate the image during write with the @angle argument. However, + * this will only work for images which support random access, like openslide, + * and not for things like JPEG. You'll need to rotate these images + * yourself with vips_rot(). Note that the `autorotate` option to the loader + * may do what you need. + * * If @properties is %TRUE, vips_dzsave() will write a file called * `vips-properties.xml` to the output directory. This file lists all of the * metadata attached to @in in an obvious manner. It can be useful for viewing