m.qcalc GRASS Reference Manual m.qcalc NAME m.qcalc - Creates tables, performs conversions, and performs simple math calculations. (SCS GRASS Data Import/Processing Program) SYNOPSIS m.qcalc m.qcalc help m.qcalc [-sahcm] init=value [end=value] [incr=value] [unit=name] DESCRIPTION This program - allows a user to create a table of cell sizes, showing how many square feet, acres, and hectares each cell would represent. - allows a user to create a table of acreage sizes, showing how many square feet, hectares, and what cell size would be represented. - allows a user to create a table of hectare sizes, showing how many square feet, acres, and what cell size would represented. - allows a user to convert values among feet, meters, miles, and kilometers. - allows a user to use the UNIX bc simple math calculator. COMMAND LINE OPTIONS Flags: -s Create a cell size table. -a Create an acres size table. -h Create a hectares size table. -c Convert value to user-stated units. -m Perform a math calculation. Parameters: init=value Initial value. end=value Ending value. incr=value Increment value. GRASS 5.0beta6 GRASS Development Team 1 m.qcalc GRASS Reference Manual m.qcalc unit=name Units of measure. Options: ft, mt, mi, km EXAMPLE The command: g.qcalc -s init=100 end=400 incr=100 produces the following table: Cell Size Sq.Ft. Acres Hectares 100 x 100 107639.31 2.47 1.00 200 x 200 430557.23 9.88 4.00 300 x 300 968753.77 22.24 9.00 400 x 400 1722228.93 39.54 16.00 The command: g.qcalc -c init=100 unit=ft produces the following: Feet Meters Miles Kilometers 100.0 30.4 0.02 0.03 AUTHOR R.L.Glenn, USDA, SCS, NHQ-CGIS NOTICE This program is part of the contrib section of the GRASS distribution. As such, it is externally contributed code that has not been examined or tested by the Office of GRASS Integration. 2 GRASS Development Team GRASS 5.0beta6