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CAD tip CAD tip # 12034:

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Q - question

SolSimilar - select geometrically similar 3D solids.

A - answer With the freeware LISP utility SolSimilar you can automatically select all identical (or closely similar) 3D solids or 2D regions from your AutoCAD DWG drawing.

Download the SolSimilar.vlx file from www.cadstudio.cz/download, load it with the APPLOAD command and type the SOLSIMILAR command or use 'solsimilar on any AutoCAD "Select objects:" prompt. All matching solids will be selected (grip-selected).

Pick the sample (primary) 3D solid (3DSOLID object) and all its copies with the same geometry will be also selected. The tool checks the following properties: the type of the solid (box, sphere...), width, depth, height, volume, surface and principal moments. Position, rotation or layer is not relevant.

You can preset the _solsimilarfuzz LISP variable to change the fuzzy-factor for comparison of geometric properties. E.g.:

(setq _solsimilarfuzz 0.001)

and the boolean variable _solsimilarignorerot for ignoring any differences in rotation of objects (both 2D and 3D) - this will match even rotated solids:

(setq _solsimilarignorerot T)

for these two settings, you can also use the commands SolSimilarIgnoreRot (toggle) and SolSimilarFuzz.

SolSimilar

See also Sel3Dsol

ACAD
100% *  CAD 
17.10.2018    456×  
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applies to: AutoCAD ·

See also:
Tip 12036:Sel2BlkRef (blockify) - replace repeating objects with block references
Tip 11994:How to scale a 3D model to a given size in Fusion 360?
Tip 11831:Using the Pantone colors (palette) for your models in Fusion 360.
Tip 11654:Select 3D solids by their height, volume, surface (smaller then...)
Tip 11252:Applying STRETCH to 3D objects in AutoCAD.


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Sel2BlkRef (blockify) - replace repeating objects with block references « | » How to print 3D characters designed in Autodesk Character Generator?

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