# block contact compute command

Syntax

block contact compute keyword <range>

Primary keywords:

Compute joint statistics. Various density measures of fractures, filtered by range, can be computed.

average-trace-length keyword

Return the average trace length (trace length divided by number of traces), where traces are the intersections between the fractures and the input planar geometry set.

geometry s

Average trace length is measured over the area of a planar geometry set with name s.

center-density keyword

Synonym for kwd:$$P30$$.

mass-density

Synonym for kwd:$$P32$$.

p10 keyword

Return the P10 (number of fracture per unit length of measurement) along the line defined by begin and end, or along the geometry edges defined with the geometry keyword.

geometry s

P10 is measured along the edges of the geometry set with name s. Cannot be given with the begin or end keywords.

begin v

Define the starting point of the reference line where P10 is measured. Cannot be given with the geometry keyword.

end v

Define the ending point of the reference line where P10 is measured. Cannot be given with the geometry keyword.

p20 keyword

Return the P20 (number of fracture per unit area of measurement) on the geometry defined with the geometry keyword.

geometry s

P20 is measured over the area of a planar geometry set with name s.

p21 keyword

Return the P21 (length of fracture per unit area of measurement) on the geometry defined with the geometry keyword.

geometry s

P20 is measured over the area of a planar geometry set with name s.

p30 keyword

Return the P30 (number of fracture per unit volume of measurement) inside the specified box.

box fx1 fx2 fy1 fy2 fz1 fz2

P30 is measured over the volume of the box.

p32 keyword

Return the P32 (area of fracture per unit volume of measurement) inside the specified box.

box fx1 fx2 fy1 fy2 fz1 fz2

P32 is measured over the volume of the box.

p33 keyword

Return the P33 (volume of fracture per unit volume of measurement) inside the specified box.

box fx1 fx2 fy1 fy2 fz1 fz2

P33 is measured over the volume of the box.

trace-center-density

Synonym for kwd:$$P20$$.

trace-mass-density

Synonym for kwd:$$P21$$.

percolation

Synonym for P33.