OTF Coordinate Transformation on QgsMapCanvas

Question

I want to be able to reproject the current layer's CRS onto the map canvas' CRS. I am using the C++ library with Qt. I have enable the OTF CRS transformation by calling

setCrsTransformEnabled(true);

I then set the Map Canvas's CRS using

mapCanvas->setDestinationCrs(selector->getSelectedCRS());

where selector lets you select the target CRS and mapCanvas is an instance of QgsMapCanvas. However, once this is called, the current layer disappears. I have tried to reset the extents using setExtent() and refresh().

What am I missing?

Answer 1

I have spent many hours solving the same problem! It happend on QGIS 2.18.20. After downgrade to 2.14.10 everything`s ok! OTF working fine))