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I'm contouring relatively small 30m resolution grids - 50-100mb .mrr files. Creating a simple 1 level contour takes hours! I let a slightly larger one run on a spare machine and it took days.

Is there any way I can speed this up?

Can I convert it back to .grd and contour it from there?

Can I change some settings in the contouring tool?

I'm using Mapinfo 15.2

edit: Contours ran for more than an hour, and didn't create valid output. Ran it in Alteryx and it contoured in about 2 minutes, on a much slower machine. Still no idea why it takes so long in Mapinfo.

  • Depending on the application more ram and chipset speed can help. what are the specs of the processing machine? – Mapperz Aug 29 '18 at 18:49
  • The machine is a monster that's supposed to host 5 VMs but I've got the whole thing - 2 2.5 Xeon e5 2680 processors and 128gb of ram. SSD disks. It shouldn't have a problem creating a 3mb contour from a 100mb .mrr file. – twodimes Aug 29 '18 at 19:00
  • That sounds odd. Have you tried zooming into a smaller area and limiting the contour to the extent of the map just to check if that works? Also try limiting the contouring to say a few intervals – Peter Horsbøll Møller Nov 22 '18 at 10:08

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