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| # Class STPointGridFilter Extends STTransformPoint Filters the points in a point layer based on a specified grid. The result is currently one point per grid square but this could be made more flexible in the future. Copyright, SchoonerTurtles LLP, 2009 @author Jim Graham #### Static Functions
Returns | Function | Throws
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STLayerPoint | Filter(STLayerPoint TheInputLayer, double CellWidth,double CellHeight) | Exception
## Static Functions ### STLayerPoint Filter(STLayerPoint TheInputLayer, double CellWidth,double CellHeight) Exception Create a new layer with points sampled from a grid that is overlaid on an existing point layer. There will be one randomly chosen point in the new layer from each cell that contains one or more points in the original layer. Parameters: TheInputLayer - original point layer CellWidth - Width of the grid cells in ref units CellHeight - Height of the grid cells in ref units Returns: a new layer with the filtered points Throws: Exception