Hi Greg I appreciate your frustrations. There is clearly a bug somewhere. t is just a case of finding it and deterimining which side of the GDL/plplot boundary it lies on - or if it is a Plplot documentation or error checking issue. Clearly any call to plplot which results in a segfault/crash of any sort is bad.
For some reason I can't build the gcc driver on my system (Windows 10), so I am doing this with the wxWidgets driver >> >> Ok I can simply build plplot without the bop() in rdbuf_bop and now I ask, >> which example does it affect in linux? I have just stepped through the function calls with the wxWidgets driver in the Visual Studio debugger.The only thing that the plbop() call at the end of rdbuf_bop() does is call plP_subpInit(), this is because plsc->page_status is set to AT_BOP already. In this case all that is actually done is to check that the number of sub pages in each direction is > 0, set the current subpage to 0 and set the text and tick mark sizes. Actually it turns out there is a bug here and the text size is not set correctly for x03 because the orientation change is not saved which affects the scale. I am looking to fix that now. Regarding the specific bug with GDL and gcc driver. The gcc driver should not actually called by the plbop() call. It would only get called if plsc->page_status was not already AT_BOP. Greg, can I ask what the specific call order to plplot is and how do you end up making use of the buffer in the first place? For example do you plot with gcc then the error occurs during a resize? Has plinit already been called (directly or indirectly)? Do you do something a bit more unusual such as initially set the buffer to null, do the plotting to generate the buffer, then use plcpstrm() to copy to the gcc driver? Phil ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
