String file reports

STRING FILE REPORTS
String File Summary	Produce a report summarising the contents of a string file.
Define Volume Report Format	Define the presentation of a volume report.
String File Volumes	Calculate the volume from nominated string files.
End Area Volumes	Calculate volumes using the method of end areas.
Split End Area Volumes	Split the calculated end area volume into layers.
Stack Sections For Plotting	Plot a range of sections on the one sheet of paper.

Solid objects or excavations are often represented by a series of parallel slices. Each slice is represented by one or more closed segments which are stored in string files. Closed segments have a direction. If the points which describe a segment are stored in a clockwise direction, the segment is said to be inclusive and the area bounded by the segment is positive. Conversely, if the points are stored in an anti-clockwise direction, the segment is exclusive and the area within the segment is negative.

If you project each slice midway to each adjacent slice, the volume of the object or excavation can be calculated. This is essentially what String File Volumes does. In the case of an orebody, variables such as grade and bulk density, which are attributes of each slice, can be used to calculate tonnage and average grade. String File Volumes will allow you to present the results in a user designed report format. You use Define Volume Report Format for this purpose.

String File Summary produces a standard report for a range of string files. The report displays the area, 2D and 3D length of individual segments as well as cumulative totals.

End Area Volumes is an alternative to DTM Volumes as a method for calculating volumes. If a surface and excavation is described by strings, you can use End Area Volumes to take regular parallel slices along a defined axis and produce a volume report. The parallel slices, often sections, can be stored in a string file which may be viewed in GRAPHICS or plotted. Stack Sections For Plotting allows you to arrange all your sections in columns, these sections are stored in a string file which may also be plotted.

Split End Area Volumes is a useful tool for mine surveyors. For example, in a surface mine, Split End Area Volumes is used to calculate the volume between specific benches.