how do you insert math symbols (cos tan pi etc) into a relation?
how do you turn an absolute number into an integer by rounding? (Required for instance to calculate the number of instances of a pattern).
example, number of instances of a rotational pattern:
p1=(d2*pi)/d3
where
p1 = number of instances d2 = pitch diameter d3 = circumferential pitch of instance
From Rod Giles:-
Dear David,
Relations editor recognises the following mathematical constants:
pi
Relations editor recognises the following mathematical, logical and internal
functions (Wildfire 2.0):
+-
/*
^abs
acos
asin
atan
atan2
cable_len
ceil
comparegraphs
cos
cosh
eang
ecoordx
ecoordy
edist
elen
evalgraph
exists
exp
extract
false
floor
if
itos
ln
log
lookup_inst
massprop_param
material_param
max
min
mp_assigned_mass
mp_cg_x
mp_cg_y
mp_cg_z
mp_mass
mp_surf_area
mp_volume
no
rel_model_name
rel_model_type
search
sim_load_value
sim_mc_value
sim_shell_thickness
sin
sinh
smt_def_bend_rad
smt_thickness
sqrt
string_length
tan
tanh
trajpar
trajpar_of_pnt
true
yes
Click on the function button to see a list. If you're working on 2001 you
need to apply the following config options:
new_relation_ui yes
new_parameter_ui yes
I make sure you have an integer number, use ceil (ceiling function) or floor
(floor function), depending on whether you what 1 more or 1 less, e.g. if
your equation resulted in p1 = 3.26, then floor(3.26) = 3, ceil(3.26) = 4.
Adjust the formula,
p1=ceil((d2*pi)/d3)
p1=floor((d2*pi)/d3)
according to your requirement.
Hope this helps,
Rod Giles
Technical Director
Elite Consulting Ltd.
Pro/Enginer Consultants, Trainers and Value Added Reseller
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