Converting point clouds to PODs

RE: Converting point clouds to PODs

Steve Young — Fri, 04 May 2018 16:18:16 GMT

Regardless of the compression settings, PODcreator and PointTools CONNECT seem to replace the actual points with interpreted points with a uniform spacing no less than 1mm as shown:

The red dots are points from XYZ imported through OpenRoads as terrain points. The white dots are from a POD with no compression or spacial filtering applied. Tried with compression set to .01. No diff. Whether I process the entire 360 million points or 5000 points, integrity of the original points is lost. Please tell me I'm missing something obvious.

SteveY

RE: Converting point clouds to PODs

Juan Morales — Wed, 14 Mar 2018 15:56:22 GMT

Thanks Felix. I’ll give that a try.

Juan

RE: Converting point clouds to PODs

Felix James — Wed, 14 Mar 2018 15:46:19 GMT

Hi Juan,

You may want to try using the Bentley Pointools PODcreator to convers to POD this will allow a compression setting of at least 0.01mm. You can get the PODcreator here:

https://store.bentley.com/en/products/iware

RE: Converting point clouds to PODs

Juan Morales — Wed, 14 Mar 2018 14:05:43 GMT

Hi Dan, with regards to compression, I'm attaching point clouds to microstation CONNECT Edition Update 7 and require less compression that the minimum of 1mm available as we are trying to achieve sub-millimetre accuracy. Is there a way to decrease the minimum compression setting (i.e compress less)? Right now the options are 1mm, 7.5mm and 50mm. Currently we have built a point cloud with the intent to achieve +/-0.3mm of accuracy.