how can i draw a line tangent to two circles?
it looks impossile with nanaocad
2
a line tangent to two circles
Started by piero, Aug 20 2019 02:16 PM
3 replies to this topic
#2
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Posted 20 August 2019 - 03:01 PM
Now way to do it in 1 command, as I know.
That's geometry: connect centres of the circles with a line, divide this lines proportionally to circles' radius - this point will be crossed by the tangent line to both circles.
R1=50
R2=20
L=L1+L2=224.88
R1/R2=L1/L2=50/20
We find
L1=160.63
L2=64.25
or draw 2 lines 50 and 20 and scale (50+20) to fit L=224.88.
That's geometry: connect centres of the circles with a line, divide this lines proportionally to circles' radius - this point will be crossed by the tangent line to both circles.
R1=50
R2=20
L=L1+L2=224.88
R1/R2=L1/L2=50/20
We find
L1=160.63
L2=64.25
or draw 2 lines 50 and 20 and scale (50+20) to fit L=224.88.
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#3
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nanoCAD Team
Posted 22 August 2019 - 12:04 PM
piero, on 20 August 2019 - 02:16 PM, said:
how can i draw a line tangent to two circles?
it looks impossile with nanaocad
it looks impossile with nanaocad
tangent line to two circles is available in nanoCAD Plus.
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