Re: [Qgis-user] Question about Weighting Power value when running Grid-Inverse Distance to a Power

2019-09-17 Thread J.O.Williams
A power of 1 is a linear interpolation among all points in the search radius. A power of 2 causes the "closest point" in the search radius to have a slightly higher weight. A power of 4, 6 and especially 10 causes the closest point to behave like a polygonal or  theissen polygon. A

Re: [Qgis-user] Seeking support for drill hole module

2020-05-19 Thread J.O.Williams
Greetings, I would suggest that development also involve the Environment Superfund (USA) drilling projects.  The project could be sold to both groups. TIA J.O. Williams On 5/19/20 12:44 AM, Andreas Neumann wrote: Hi Grant, Yes - Oslandia has a developed a number of plugins for geology,

[Qgis-user] Your Bearing Distance problem

2021-04-10 Thread J.O.Williams
A couple of years ago I had the same problem verifying some Bearing-Distance surveys by the US governments Mineral Surveyors. The land was patented back in the 1872 to 1900 time frame. The townships and sections even now have not been surveyed.  The south-west corner of Colorado was surveyed