Closest Point Solid Modeling

The Closest Point option is the most basic solid modeling method, in which the value of a voxel node is set to be equal to the value of the nearest data point, regardless of its distance from the point or the value of its other neighbors. 

Advantages: The model’s value range will be equal to the data point range, with maximum and minimum model node and data point values corresponding exactly. Solid model nodes will honor the control points. This method is useful when generating models in which the values are not gradational. 

Disadvantages: This algorithm produces a solid model with abrupt changes between nodes. 

Example of use:

• If you have pre-gridded XYZG data in a text (ASCII) file, you can use this modeling method to re-create the solid model without doing any re-interpolation of the G values. Simply set the model dimensions and spacing to that represented in the data, and the Closest Point method should recreate the previous model.
• For lithology modeling, this can be used for complex non-stratiform geology (e.g. multiple intrusions, impact craters, karst, etc.). 
  
  

Back to Solid Modeling Method Summary

RockWare home page