OTF Raster Reprojection error

[davecollett]

Appears to reproject layers into the correct place, however the representation of the right-hand part of each raster appears to copy the pixels across the screen. This appears to affect all raster layers when the OTF reprojection is turned on, even if the layers are already in the final projection. Have tried with rasters in Lambert Conformal Conic, Polar Stereographic and Transverse Mercator, and all produce this error.

Using Trunk release r15861.

[davecollett]

Zip file containing example raster.

[davecollett]

Screenshot of error #3

[davecollett]

Screenshot of error #2

[davecollett]

Screenshot of error

[lutra]

it is confirmed by many, also on Linux.

Radim has already proposed a patch, that would be useful to test

--- 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() );

[lutra]

Odd, using trunk (same revision r15861) on both linux and windows I can reproduce the artifacts only under linux. On Windows it works fine

using this raster (epsg 3003)

​https://int.faunalia.it/~paolo/dtm.tar.gz

and reprojecting it in epsg 4326