Path: csiph.com!3.eu.feeder.erje.net!feeder.erje.net!border1.nntp.ams1.giganews.com!nntp.giganews.com!buffer1.nntp.ams1.giganews.com!nntp.brightview.co.uk!news.brightview.co.uk.POSTED!not-for-mail NNTP-Posting-Date: Thu, 19 Mar 2020 05:17:30 -0500 From: News Subject: Re: Saving animated sprites from a simple BASIC graphic program Newsgroups: comp.sys.acorn.programmer Date: Thu, 19 Mar 2020 10:17:24 +0000 (GMT) Message-ID: <5853a108a3chrisjohnson@spamcop.net> References: <5852bdfc1cbasura@invalid.addr.uk> <5853462123basura@invalid.addr.uk> User-Agent: Pluto/3.16 (RISC OS/5.25) NewsHound/v1.52-32 Organization: None Lines: 13 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-mLRnq3CQvD4hFW/121MPfs5NfPcYZI9j8r4C2N7DxfuvOK+DUlrP+JI/dmQrFUlwS1CQuMFF0Cus/3E!MEtTGN150j3EGkASk7qUDULGhguvVQQMsDm02llzdGRFe+Y+P3Gb4Y5KIwtjtXuSBBLSuUWZMp9V!i3AS X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 X-Original-Bytes: 1718 Xref: csiph.com comp.sys.acorn.programmer:6037 In article , Steve Fryatt wrote: > You're grabbing a screenshot from (-330,-330) to (330,330) relative > to the current origin (0,0), but at the same time, you're moving > that origin around to shift the centre of your square. But, of > course, this /also/ moves the centre of the (-330,-330) to > (330,330) screen grab, so the grabbed area will /always/ be > perfectly centred on the square that you've just plotted. Those were my thoughts as well, but you beat me to the post 8) -- Chris Johnson