<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div>Hi Noah,</div><div><br></div><div>See answers and questions for you inlined below.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><span style="white-space:pre-wrap"> </span>1) My original data extends beyond the x=0 symmetry plane by two data points. And I have no data point on x=0 itself. This is because in the simulation, there is a third-order polynomial element centered on x=0.</div></div></blockquote><div><br></div><div>What would you like to see on x=0?</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><span style="white-space:pre-wrap"> </span>2) My data is represented as Structured Curvilinear Grid (.VTS files) though in actuality, it is rectilinear.</div></div></blockquote><div><br></div><div>Shouldn't be a problem.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><span style="white-space:pre-wrap"> </span>3) Some data arrays have odd symmetry, such that f(x<0) = -f(x>0)</div></div></blockquote><div><br></div><div>The Reflect filter doesn't support this, but you obviously know that.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div>Here’s what I’ve tried.</div><div>A) Use the Reflect filter, reflect about x=0. Works quite well for even symmetry data, but the odd-symmetry data is misrepresented with opposite sign for (x<0). Also, there are glitches with the doubled-up mesh points about x=0. That becomes obvious when I tried to add a calculator to correct the odd symmetry based on (x<0) boolean expression.</div></div></blockquote><div><br></div><div>Could you describe the glitches? I couldn't understand them from just the images you attached.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div>B) Manually select data points with (x>0); Extract Selection; Reflect that extraction; Group original and new selection. Problem: I end up with a band of missing data for the cell centered on x=0.</div></div></blockquote><div><br></div><div>Again, what do you expect to see at x=0 if your original data doesn't have anything at x = 0?</div><div><br></div><div>Thanks,</div><div>Cory</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div>Ideally, I want to end up with a consistent full-domain representation such that I can perform stream line traces across the x=0 mid-plane.</div><div><br></div><div>I’d be very grateful if anyone could point out a working solution. Here’s one of my data files and some screenshots of my failed attempts. ( The scalar data item EM_field_n_c4 is a good odd-symmetry example. )</div><div><br></div><div><a href="https://dl.dropboxusercontent.com/u/54478577/supporting%20forum%20posts/paraview_odd_symmetry_help/harris_current_sheet_equilibreum_2.vts" target="_blank">VTS data file 800 kB</a></div><div><br></div><div><a href="https://dl.dropboxusercontent.com/u/54478577/supporting%20forum%20posts/paraview_odd_symmetry_help/By.jpg" target="_blank">Existing Curvilinear Mesh representation</a></div><div><br></div><div><a href="https://dl.dropboxusercontent.com/u/54478577/supporting%20forum%20posts/paraview_odd_symmetry_help/missingband.jpg" target="_blank">ProblemA demonstration of missing band about x=0</a></div><div><br></div><div><a href="https://dl.dropboxusercontent.com/u/54478577/supporting%20forum%20posts/paraview_odd_symmetry_help/glitch_at_centerline.jpg" target="_blank">ProblemB demonstration of glitch at centerline</a></div><div><br></div><div><br></div><div>Best Regards,</div><div><br></div><div>Noah Reddell</div><div>University of Washington</div><div><br></div></div><br>_______________________________________________<br>
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