/// <summary>
/// InitialiseFilterContext performs any required filter initialization and configuration
/// that is external to the filter prior to engaging in cell by cell processing of this sub grid
/// </summary>
private bool InitialiseFilterContext()
{
if (_filter == null)
{
return(true);
}
// TODO: If the elevation range design and the surface design mask design are the same then only request the design elevations once.
if (_filter.AttributeFilter.HasElevationRangeFilter)
{
_filterAnnex.ClearElevationRangeFilterInitialization();
// If the elevation range filter uses a design then the design elevations
// for the sub grid need to be calculated and supplied to the filter
if (_elevationRangeDesign != null)
{
// Query the design to get the patch of elevations calculated from the design
var getDesignHeightsResult = _elevationRangeDesign.Design.GetDesignHeightsViaLocalCompute(_siteModel,
_elevationRangeDesign.Offset, _clientGrid.OriginAsCellAddress(), _clientGrid.CellSize);
_elevationRangeDesignElevations = getDesignHeightsResult.designHeights?.Cells;
if ((getDesignHeightsResult.errorCode != DesignProfilerRequestResult.OK && getDesignHeightsResult.errorCode != DesignProfilerRequestResult.NoElevationsInRequestedPatch) ||
_elevationRangeDesignElevations == null)
{
return(false);
}
_filterAnnex.InitializeElevationRangeFilter(_filter.AttributeFilter, _elevationRangeDesignElevations);
}
}
if (_filter.SpatialFilter.HasSurfaceDesignMask())
{
// SIGLogMessage.PublishNoODS(Nil, Format('#D# InitialiseFilterContext RequestDesignElevationPatch for Design %s',[CellFilter.DesignFilter.FileName]), ...);
// Query the DesignProfiler service to get the patch of elevations calculated
//Spatial design filter - don't care about offset
var getDesignHeightsResult = _surfaceDesignMaskDesign.GetDesignHeightsViaLocalCompute(_siteModel, 0, _clientGrid.OriginAsCellAddress(), _clientGrid.CellSize);
_surfaceDesignMaskElevations = getDesignHeightsResult.designHeights?.Cells;
if ((getDesignHeightsResult.errorCode != DesignProfilerRequestResult.OK && getDesignHeightsResult.errorCode != DesignProfilerRequestResult.NoElevationsInRequestedPatch) ||
_surfaceDesignMaskElevations == null)
{
_log.LogError($"#D# InitialiseFilterContext RequestDesignElevationPatch for Design {_surfaceDesignMaskDesign.DesignDescriptor.FileName} failed");
return(false);
}
}
return(true);
}