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2d plot using distance between points only?

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zeus:
ALSO - consider writing it yourself. It basically comes to adding dots along the edge of a circle and comparing the locations of circle centrepoints in such a way that all conditions are met simultaneously. Doable in ~2-3 hours in worse case scenario

Miauz55555:

--- Quote from: holyspam on March 15, 2021, 16:38 ---
--- Quote from: Killer_XTREME!!! on March 15, 2021, 16:24 ---
--- Quote from: Piglet on March 15, 2021, 11:21 ---Can anyone help me find some free software where I can specify lengths between points to establish their position and draw up a complex plan?

I want to use the measurements to establish the points then join them up as needed - it's for a rather complex shaped house and garden plot.

I do have manual technical drawing skills, and can do this by hand using compasses and ruler on paper, but that takes time and I'd prefer to do this electronically.

As an example, with measurements:

A to B
A to C
A to D
B to C
B to D
B to E
D to E

With the starting assumption that A to B is West to East, and that the other points are to the North of them, you can work out the positions of the other points:






Every software I can find uses length along a bearing....and I don't have a theoldolite to hand or the skills to use one!

--- End quote ---

Try AutoCAD, its what civil engineers use for their detailed house line plans, i think they also have 3d ones

--- End quote ---

I agree, you can design almost anything in 3D like gears,screws etc..
The "offset [distance x,y,z]" command will help you a lot
Civil engineers use it for city planning, trees, sidewalks, roads, bridges...you name it

--- End quote ---

But AutoCad is not legaly free. "FreeCad" .. well .. is. https://www.freecadweb.org/

hagis:
usually when the problem looks unusual it's because it's being attempted in the wrong way

in this case, a roomba, fitted with suitable wheels and let it map the area for you,. there's some software kicking about that takes the roomba data and will draw an accurate plan

ok there are other ways too which don't require a roomba

Stealer:
Looks like a load of triangles to me, pythagorus? Probably not what you want though...

Piglet:
Yes - I want to plot those triangles; find where the points are and then join them up as I need to.

Sounds like a simple ask - but I can't find software to do it.

It would be possible to use maths to derive the position of each of the corners - but then I'd have to do that for every trangle and plot those points - but it would be really painful.

The other way is to do it as you would on paper:

1. draw the first line A-B
2. plot a circle, centre A with radius of the second length A->C
3. plot a circle, centre b with radius of the third length B->C
4. the intersection of the circles is point C

I'm not sure how to use the cad packages I've found to do that.

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