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Is Origin per-page or per-document?
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cscooper View Drop Down
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Joined: 06 Apr 12
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Posts: 13 		Post Options Post Options   Quote cscooper Quote  Post ReplyReply Direct Link To This Post Topic: Is Origin per-page or per-document?
    Posted: 13 Apr 12 at 6:12PM
When I call SetOrigin(), what is the scope of the change - am I changing the origin for the current stream, the current page, or the entire document?

Thanks,
Chris
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fargburger View Drop Down
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Posts: 13 		Post Options Post Options   Quote fargburger Quote  Post ReplyReply Direct Link To This Post Posted: 13 Apr 12 at 6:14PM
I'm using it in Delphi XE2 and setting it once per document.
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edvoigt View Drop Down
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Posts: 110 		Post Options Post Options   Quote edvoigt Quote  Post ReplyReply Direct Link To This Post Posted: 13 Apr 12 at 9:38PM
Hi,

the reference guide says: "Sets the origin for all subsequent drawing operations."

Beware:
There is nothing written about pages. Setorigin has no effects for content, which is made before this setting, independed how did make it. It gives QP only an advise, how are coordinates in following function calls to be interpreted.

And so it is valid over page boundaries, until you set the origin new.

In the background has QP much more to do. If you are interested to understand what, look at "4.2.3 Transformation Matrices" in Adobes PDF-Spec.

Werner


Edited by edvoigt - 14 Apr 12 at 4:52PM
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