Author |
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walter helgeland (walterhelgeland)
New member Username: walterhelgeland
Post Number: 1 Registered: 02-2007
| Posted on Thursday, February 22, 2007 - 01:27 pm: | |
I have a staged problem in which some Region coordinate points change from stage to stage. If I write an explicit list of the coordinates, the problems solve OK. As each stage is solved, the correct coordinate values are picked out of the list. The coordinates are the result of a series of complex calculations, so it's tedious (and error-prone) to compute them all and then write the numerical values into the script. So I have written the equations into the script so these coordinates are freshly calculated at each stage. However, when I try to run this script, I get the error message, "A Constant value is required" at the point where the region definition refers to the coordinate value that has been calculated in the Definitions section. Is there a way to work around this limitation. I, running FlexPDE 4.2.16 Professional Version. |
Robert G. Nelson (rgnelson)
Moderator Username: rgnelson
Post Number: 772 Registered: 06-2003
| Posted on Thursday, February 22, 2007 - 04:10 pm: | |
There is currently no mechanism to feed back dynamically computed data into the domain definition. You will have to break the problem into separate runs, and export/import the data. 1) Export a file using the "format" facility. 2) Import the data using the #include facility. See "Samples | Misc | Import_Export | export_format.pde" for examples of formatted export. Or, perhaps an exported SUMMARY page would be better if there are only a few numbers.
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walter helgeland (walterhelgeland)
New member Username: walterhelgeland
Post Number: 2 Registered: 02-2007
| Posted on Thursday, February 22, 2007 - 05:39 pm: | |
Thanks for the prompt response. Actually, I did not phrase my inquiry accurately enough. Since posting it, I have discovered a typo in my complicated script that led to the problem. So I think I am OK now. |
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