Karim Nassar wrote: > > Hello > > I am new to this mailing list, and I just started using DX two weeks ago and > I have been carefully reading the IBM manuals, but I had a lot of unanswered > questions at the end, one of which is how to graph scattered data using the > dx file format. > I tried using the general array importer and then using the Connect module > to connect the points. But that only seemed to work for data files that have > less than 1000 points in them. I know using the dx format is much more > efficient since I already used it to graph a small number of points (15) and > DX plotted them instantly but in that situation I had to specify which > points should be connected to which, (similar to examples 9 & 10 in the DX > user's guide p.263) of course doing that with larger files is impractical. > > So what are my options right now? >
I have done that last week, trying to draw my finite elements (P1 triangles) results. Basically, the whole point is to produce a dx file. Then you can directly see the field by importing the dx file without the need of the Connect module. As far as i can see, if you know how to connect your scattered data which is clearly the case with finite elements, then (at least for standard elements) it is finished. Indeed, the "connections" (array gridconnection in dx) are provided by the elements (triangles in my case). Now, in your case, I understand that you don't have an automatic way of connecting your scattered data. For small number of points you can do it manually...now IMHO it more a theoretical problem than a practical one...what you want is that the connection decision you had made manually can be automatically done for large number of points...well i can't imagine that it is simple ;-) I guess that is is possible to find a triangular (assuming 2D geometry) meshing that correspond to your scattered points but it is clearly not straightforward. -- Axel.
