jdZddlmZddlmZddlmZejdZde de de fd Z de fd Z d e de fd Zdd edede fdZdd ede ddfdZy)z units.py -------------- Deal with physical unit systems (i.e. inches, mm) Very basic conversions, and no requirement for sympy.physics.units or pint. ) resources)log)Geometryzunits_to_inches.jsoncurrentdesiredreturnct|jjt|jjz S)af Calculate the conversion from one set of units to another. Parameters --------- current : str Unit system values are in now (eg 'millimeters') desired : str Unit system we'd like values in (eg 'inches') Returns --------- conversion : float Number to multiply by to put values into desired units )to_inchstriplower)rrs :/DATA/.local/lib/python3.12/site-packages/trimesh/units.pyunit_conversionrs7" 7==?((* +ggmmo6K6K6M.N NNc<ttjS)z Return a set containing all currently valid units. Returns -------- keys All units with conversions i.e. {'in', 'm', ...} )set_lookupkeysrr rr&s w||~ runitc0tj|jjd}||S |j d\}}t|jt |zS#t $r}d|d|d}Yd}~t|d}~wwxYw)ax Calculate the conversion to an arbitrary common unit. Parameters ------------ unit Either a key in `units_to_inches.json` or in the simple `{float} * {str}` form, i.e. "1.2 * meters". We don't support arbitrary `eval` of any math string Returns ---------- conversion Factor to multiply by to get to an `inch` system. N*z:arbitrary units must be in the form "1.21 * meters", not "z" ())rgetr r splitfloat BaseException ValueError)rlookupvaluekeyEmessages r r r 2s"[[++-t 4F   ZZ_ ssyy{#eEl22  IcRSQTTU V  W   s6A// B8 BBobjguesscN|jjddg}|j%|j|jj|D]}||j j ddj dd}dD]}|j |d}djd|D}|jjD]}|tvs |ccS|s td tjd t|jd kDry y )a9 Try to extract hints from metadata and if that fails guess based on the object scale. Parameters ------------ obj A geometry object. guess If metadata doesn't have units make a "best guess" Returns ------------ units A guess of what the units might be nameNunits rz_-.c3*K|] }|dvs| yw) 0123456789Nr).0cs r z&units_from_metadata..ss@$Q!<*?q$s z"No units and not allowed to guess!zno units: guessing from scalegY@ millimetersinches)metadatarsourceappend file_namer replacejoinr rrrrdebugrscale)r#r$hintshintdelimhs r units_from_metadatar=Ts&\\  fd + ,E zz SZZ))* < zz|##GS199&#FE<<s+Dww@$@@##%AG|& =>> II-. SYY%rNc|jt|||_tjd|j|t |j|}|j |||_y)a{ Given an object with scale and units try to scale to different units via the object's `apply_scale`. Parameters --------- obj : object With apply_scale method (i.e. Trimesh, Path2D, etc) desired : str Units desired (eg 'inches') guess: bool Whether we are allowed to guess the units if they are not specified. N)r$zconverting units from %s to %s)r'r=rr7r apply_scale)r#rr$ conversions r _convert_unitsrAsX yy(59 II. 7C G4JOOJCIr)T)F)__doc__r)r constantsrparentrget_jsonrstrrrrrr boolr=rArrr rHs )  3 4OSO3O5O( c #%D0X0d0c0f3r