VARKON Version 1.18 2004-07-31


Geometrical routines


on A position on an entity
startp The start position of a line, arc or curve
endp The end position of a line, arc or curve
tang The tangent of an entity
curv The curvature of an entity
arcl The length of an entity
inv_on Inverse on
inv_on_sur Inverse on surface
inv_tang Inverse tangent
inv_curv Inverse curvature
inv_arcl Inverse arclength
centre Centre of curvature
norm Normal of entity
angle Angle
area Area of 2D bounded region
surface_area Area of 3D surface
section_area Area bounded by 3D curve
cgrav Center of gravity
eval Evaluate coordinates and derivatives
intersect Intersect position
n_intersect Number of intersect positions
n_cur_int Number of intersect curves
all_int_lin_sur All intersects line/surface
all_int_lin_msur All intersects line/multiple surface
pos_in_cone Tests if one or more of a number of positions are inside or outside a cone
sort_mesh
Sort mesh faces in X, Y or Z direction
vec Cartesian coordinates
vecp Polar coordinates
vecl Length of vector
vecn Normalises vector
vprod Vector product
mode_local Activates local coordinate system
mode_global Activates global coordinate system
mode_basic Activates basic coordinate system
tform_mult Multiplication of two transformation matrices
tform_inv Inverse transformation
trim Clips or extends entity
refc Converts integers to ref
global_ref Creates global reference



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