You are viewing a plain text version of this content. The canonical link for it is here.
Posted to general@xmlgraphics.apache.org by Vincent Hennebert <vh...@gmail.com> on 2010/07/27 12:56:42 UTC
Re: svn commit: r979567 - in /xmlgraphics/commons/trunk: src/java/org/apache/xmlgraphics/image/loader/impl/PreloaderTIFF.java
status.xml
Hi,
> Author: jeremias
> Date: Tue Jul 27 07:50:40 2010
> New Revision: 979567
>
> URL: http://svn.apache.org/viewvc?rev=979567&view=rev
> Log:
> Fix for TIFFs which report zero as their resolution. This resulted in an exception.
> Modified:
> xmlgraphics/commons/trunk/src/java/org/apache/xmlgraphics/image/loader/impl/PreloaderTIFF.java
> ==============================================================================
> @@ -127,7 +127,10 @@ public class PreloaderTIFF extends Abstr
> xRes = fldx.getAsFloat(0);
> yRes = fldy.getAsFloat(0);
> }
> - if (unit == 2) {
> + if (xRes == 0 || yRes == 0) {
> + //Some TIFFs may report 0 here which would lead to problems
Isn’t it a degenerate case that the user wants to be made aware of?
Also, what if xRes == 0 but yRes != 0 or vice versa?
Thanks,
Vincent
---------------------------------------------------------------------
To unsubscribe, e-mail: general-unsubscribe@xmlgraphics.apache.org
For additional commands, e-mail: general-help@xmlgraphics.apache.org
Re: svn commit: r979567 - in /xmlgraphics/commons/trunk: src/java/org/apache/xmlgraphics/image/loader/impl/PreloaderTIFF.java status.xml
Posted by Jeremias Maerki <de...@jeremias-maerki.ch>.
On 27.07.2010 17:02:12 Vincent Hennebert wrote:
> Jeremias Maerki wrote:
> > Hi Vincent
> >
> >
> > On 27.07.2010 12:56:42 Vincent Hennebert wrote:
> >> Hi,
> >>
> >>> Author: jeremias
> >>> Date: Tue Jul 27 07:50:40 2010
> >>> New Revision: 979567
> >>>
> >>> URL: http://svn.apache.org/viewvc?rev=979567&view=rev
> >>> Log:
> >>> Fix for TIFFs which report zero as their resolution. This resulted in an exception.
> >>> Modified:
> >>> xmlgraphics/commons/trunk/src/java/org/apache/xmlgraphics/image/loader/impl/PreloaderTIFF.java
> >>> ==============================================================================
> >>> @@ -127,7 +127,10 @@ public class PreloaderTIFF extends Abstr
> >>> xRes = fldx.getAsFloat(0);
> >>> yRes = fldy.getAsFloat(0);
> >>> }
> >>> - if (unit == 2) {
> >>> + if (xRes == 0 || yRes == 0) {
> >>> + //Some TIFFs may report 0 here which would lead to problems
> >> Isn’t it a degenerate case that the user wants to be made aware of?
> >
> > Not IMO. The users can always size the images to their wishes.
>
> So that’s done by setting resolution to 0?
No, what I mean is that people can use the properties on
fo:external-graphic and svg:image to scale the images to their wishes. A
missing resolution is just a fact of life in some very rare cases (for
TIFF).
> >> Also, what if xRes == 0 but yRes != 0 or vice versa?
> >
> > That's a very interesting question...
>
> Ok, so I assume my question was actually stupid. Might well be as
> I don’t know anything about TIFF. I thought that maybe the non-null
> resolution could be used for both axes, instead of relying on an
> external arbitrary value. But I suppose that doesn’t matter.
There are generally no stupid questions. But this one was kind of
academic which is why I reacted like this. Of course, we could handle
these two cases, too, but even the case I've fixed happens very rarely.
I estimate a probability of less than 0.0001 that this special case
you raised ever happens so rather than further complicating the code, I
chose a compromise that nobody is likely to ever stumble on in practice,
only when someone is reading the code. The resolution is only a hint.
Most people will scale their images anyway in which case the resolution
doesn't matter at all.
Jeremias Maerki
---------------------------------------------------------------------
To unsubscribe, e-mail: general-unsubscribe@xmlgraphics.apache.org
For additional commands, e-mail: general-help@xmlgraphics.apache.org
Re: svn commit: r979567 - in /xmlgraphics/commons/trunk: src/java/org/apache/xmlgraphics/image/loader/impl/PreloaderTIFF.java
status.xml
Posted by Vincent Hennebert <vh...@gmail.com>.
Jeremias Maerki wrote:
> Hi Vincent
>
>
> On 27.07.2010 12:56:42 Vincent Hennebert wrote:
>> Hi,
>>
>>> Author: jeremias
>>> Date: Tue Jul 27 07:50:40 2010
>>> New Revision: 979567
>>>
>>> URL: http://svn.apache.org/viewvc?rev=979567&view=rev
>>> Log:
>>> Fix for TIFFs which report zero as their resolution. This resulted in an exception.
>>> Modified:
>>> xmlgraphics/commons/trunk/src/java/org/apache/xmlgraphics/image/loader/impl/PreloaderTIFF.java
>>> ==============================================================================
>>> @@ -127,7 +127,10 @@ public class PreloaderTIFF extends Abstr
>>> xRes = fldx.getAsFloat(0);
>>> yRes = fldy.getAsFloat(0);
>>> }
>>> - if (unit == 2) {
>>> + if (xRes == 0 || yRes == 0) {
>>> + //Some TIFFs may report 0 here which would lead to problems
>> Isn’t it a degenerate case that the user wants to be made aware of?
>
> Not IMO. The users can always size the images to their wishes.
So that’s done by setting resolution to 0?
>> Also, what if xRes == 0 but yRes != 0 or vice versa?
>
> That's a very interesting question...
Ok, so I assume my question was actually stupid. Might well be as
I don’t know anything about TIFF. I thought that maybe the non-null
resolution could be used for both axes, instead of relying on an
external arbitrary value. But I suppose that doesn’t matter.
Vincent
---------------------------------------------------------------------
To unsubscribe, e-mail: general-unsubscribe@xmlgraphics.apache.org
For additional commands, e-mail: general-help@xmlgraphics.apache.org
Re: svn commit: r979567 - in /xmlgraphics/commons/trunk: src/java/org/apache/xmlgraphics/image/loader/impl/PreloaderTIFF.java status.xml
Posted by Jeremias Maerki <de...@jeremias-maerki.ch>.
Hi Vincent
On 27.07.2010 12:56:42 Vincent Hennebert wrote:
> Hi,
>
> > Author: jeremias
> > Date: Tue Jul 27 07:50:40 2010
> > New Revision: 979567
> >
> > URL: http://svn.apache.org/viewvc?rev=979567&view=rev
> > Log:
> > Fix for TIFFs which report zero as their resolution. This resulted in an exception.
> > Modified:
> > xmlgraphics/commons/trunk/src/java/org/apache/xmlgraphics/image/loader/impl/PreloaderTIFF.java
> > ==============================================================================
> > @@ -127,7 +127,10 @@ public class PreloaderTIFF extends Abstr
> > xRes = fldx.getAsFloat(0);
> > yRes = fldy.getAsFloat(0);
> > }
> > - if (unit == 2) {
> > + if (xRes == 0 || yRes == 0) {
> > + //Some TIFFs may report 0 here which would lead to problems
>
> Isn’t it a degenerate case that the user wants to be made aware of?
Not IMO. The users can always size the images to their wishes.
> Also, what if xRes == 0 but yRes != 0 or vice versa?
That's a very interesting question...
Jeremias Maerki
---------------------------------------------------------------------
To unsubscribe, e-mail: general-unsubscribe@xmlgraphics.apache.org
For additional commands, e-mail: general-help@xmlgraphics.apache.org