<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Hello,<div><br></div><div>I'm having some trouble calculating a vector field from a list of three scalars using the vtkArrayCalculator. When I attempt to run my program vtk gives me the following error message:</div><div><br></div><div><div style="margin: 0px; font-size: 10px; font-family: Menlo;">ERROR: In /tmp/vtk5-Sa5a/VTK5.10.1/Filtering/vtkExecutive.cxx, line 756</div><div style="margin: 0px; font-size: 10px; font-family: Menlo;">vtkStreamingDemandDrivenPipeline (0x7fe8b9426170): Algorithm vtkArrayCalculator(0x7fe8b9425150) returned failure for request: vtkInformation (0x7fe8b94263c0)</div><div style="margin: 0px; font-size: 10px; font-family: Menlo;"> Debug: Off</div><div style="margin: 0px; font-size: 10px; font-family: Menlo;"> Modified Time: 207</div><div style="margin: 0px; font-size: 10px; font-family: Menlo;"> Reference Count: 1</div><div style="margin: 0px; font-size: 10px; font-family: Menlo;"> Registered Events: (none)</div><div style="margin: 0px; font-size: 10px; font-family: Menlo;"> Request: REQUEST_DATA_OBJECT</div><div style="margin: 0px; font-size: 10px; font-family: Menlo;"> FORWARD_DIRECTION: 0</div><div style="margin: 0px; font-size: 10px; font-family: Menlo;"> ALGORITHM_AFTER_FORWARD: 1</div></div><div><br></div><div>I have included a minimal sample program which is based on the vtkArrayCalculator unit tests, along with a sample tecplot data file that reproduces the error in a zipped tar file (attached). Additionally I'm compiling my code on OSX 10.9.5 using the homebrew installation of VTK5 (if any more information is required regarding my platform please let me know). Could someone please offer any assistance/advice as to where I'm going wrong?</div><div><br></div><div>Kind regards</div><div>Lesleis Nagy</div><div><br></div><div></div></body></html>