[Qgis-developer] Re: something went terribly wrong with reprojected rasters in the last 72 hours

[Mathieu Pellerin]

Radim,

Any chance you can apply this quick fix to a 1.7 build prior to final
release?

Math
On May 2, 2011 6:56 PM, "Radim Blazek" <radim.blazek at gmail.com> wrote:
> The patch is simple, we have to wait for new repository
>
> --- src/core/qgsrasterprojector.cpp (revision 15861)
> +++ src/core/qgsrasterprojector.cpp (working copy)
> @@ -130,7 +130,7 @@
> mSrcExtent = QgsRectangle( myPoint.x(), myPoint.y(), myPoint.x(),
> myPoint.y() );
> for ( int i = 0; i < mCPRows; i++ )
> {
> - for ( int j = 1; j < mCPCols - 1; j++ )
> + for ( int j = 0; j < mCPCols; j++ )
> {
> myPoint = mCPMatrix[i][j];
> mSrcExtent.combineExtentWith( myPoint.x(), myPoint.y() );
>
> Radim
>
> On Mon, May 2, 2011 at 1:29 PM, Mathieu Pellerin <nirvn.asia at gmail.com>
wrote:
>> Greetings Radim Blazek,
>>
>> I'm forwarding you an email sent to the qgis-developer list hoping it can
>> speed up a major raster rendering issue emerging days before the 1.7
>> release.
>>
>> Please find attached to this email a rendered map showing the issue. I
>> believe it might have been caused by r15845 or r15846, both applied by
you a
>> few days ago. Others seem to draw the same conclusions
>> (http://lists.osgeo.org/pipermail/qgis-developer/2011-May/014148.html).
>>
>> Hope it can be of help to you in resolving this issue.
>>
>> Thanks for all the hard work you and the other developers are putting
into
>> QGIS, it's an amazing piece of software.
>>
>> Math
>>
>> ---------- Forwarded message ----------
>> From: Mathieu Pellerin <nirvn.asia at gmail.com>
>> Date: Mon, May 2, 2011 at 11:27 AM
>> Subject: something went terribly wrong with reprojected rasters in the
last
>> 72 hours
>> To: qgis-developer at lists.osgeo.org
>>
>>
>> Greetings,
>>
>> QGIS' trac login is timing out on me so going through the mailing list
until
>> it allows me to file in a proper issue report.
>>
>> A change applied on QGIS within the last 72 hours resulted in messy
>> rendering of reprojected rasters. From what I can see, starting at
pixel's
>> column 50%+1, QGIS just keeps repainting the same pixels again and again
>> (see attached rendering).
>>
>> This should probably be fixed prior to releasing of 1.7 : )
>>
>> Cheers.
>>
>> Math
>>
>>
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