[cairo] cairo design
spitzak at d2.com
Fri Apr 23 16:31:21 PDT 2004
On Friday 23 April 2004 01:46 pm, Keith Packard wrote:
> The default cairo transformation matrix sets the user coordinate space to
> approximately 100dpi. For most displays, this ends up being an identity
> transformation, but higher resolution devices will end up using
> non-identity default transformations.
It actually picks the nearest integer transform to 1/96, right? If displays
go higher resolution you will get a 2:1 transformation, but you will never
get a non-integer one. This is quite a good idea, as it is approximately
resolution-independent without messing up programs that assumme things about
the pixel layout.
You can also directly set the transform so one unit is an actual dimension
(1/72 inch?) and scale from there to any other actual dimension.
,~,~,~,~ ~ ~ ~ ~
/\_ _|_========___ Bill Spitzak
~~~/\/\\~~~~~~\____________/~~~~~~~~ spitzak at d2.com
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