Roxen.git/
server/
base_server/
image_cache.xml
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2001-09-10
2001-09-10 15:28:31 by Martin Nilsson <mani@lysator.liu.se>
261aeac1aa1138a00a3060a05755856769cfd200 (
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Branch:
5.2
Documented crop extensions.
Rev: server/base_server/image_cache.xml:1.6
224:
Keep n pixels from the beginning of the Y scale.</p> </attr>
-
<attr name=crop value='
x0,y0-
x1,y1'
default='whole
image
'
><p>
-
Crop
the image by
specifying
the
pixel
coordinates
.</p>
+
<attr name=crop value='
x1
,
y1
-
x2
,
y2|auto|guides-cross|guides-region
'
><p>
+
Crops
the
image
by using several differen methods. The simplest is to only
+
specify the area to be cropped with x,y-x,y coordinates. By instead
+
selecting "auto" the image will be cropped so that as many pixels as possible
+
with the same color is removed from around the image.</p
>
+
+
<p>
A more advanced cropping method can be used by giving the crop argument
+
"guides-cross".
The image will then be cropped around
the
intersection of
+
two guides inside the
image
.
Guides can be added to e.g. Photoshop and
+
GIMP images. If several guides are present, which ones to use can be
+
selected with the guides-index=x,y attribute, where x and y is the number
+
of the guides. Guides cross cropping is usefull together with max-width
+
and max-height attributes when creating thumb nails.</p>
+
+
<p>A combination of guides cross cropping can be used
by
giving
the
crop
+
argument "guides-region"
.
In this cropping mode the area enclosed by
+
two horizontal and two vertical guides are saved. Which guides to use
+
is given by the guides-index=x1,y1-x2,y2 attribute, where the x and y
+
parameters are the number of the guides. Guides can also be specified as
+
guides-index=x,y. Then the saved area will be the one enclosed by the
+
buides x,y and x+1,y+1, counting from left and top. Again, combine max-width
+
and max-height makes a good effect, since scaling is performed after cropping.
</p>
+
<ex type='vert'> <### crop='50,28-150,92'/> </ex>
-
+
+
<p>
</attr> <h3>Format specific attributes</h3>
286:
Resolution, in pixels per inch.</p> </attr>
-
<attr name='pcx-ydpy' value='0-10000000.0' default='75.><p>
+
<attr name='pcx-ydpy' value='0-10000000.0' default='75.
0'
><p>
Resolution, in pixels per inch.</p> </attr>