Clockwise arc?

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Clockwise arc?

chomwitt
This post was updated on .
Greetings from Greece and Congratulations for keeping Dr.Geo alive.

Trying to make a regular hexagon from a circle , it'd be helpfull to make an arc clockwise.
Otherwise i think we must use complete circles.
I noticed the same in other interactive geometry software too.

For more stimulus for the discussion a link to a reference of constructing a regular hexagon inscribed in a circle.

So reading the construction my mind lingered on the phrase ' ...swing a small arc crossing the circumference of the circle.' and i thought if that kind of movement could be usefull in simulating in Dr.Geo..
a regular hexagon inscribed in a circle

Also i uploaded an image of contstucting a hexagon on a given segment , and again the 'compass swinging' seems usefull.
construct a Hexagon given only one side
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Re: Clockwise arc?

Hliaire Fernandes
Administrator
Hi,

Thanks for your feedback.

Yes one needs to be motivated to keep alive Dr.Geo! More feedback or examples of use like yours may help.
Btw, I am looking for graphist designer to reshape DrGeo (http://www.drgeo.eu/news/graphicdesignerneeded)

All in all, the simulation of the compass swing is not great in Dr.Geo, to not say inexistant.

However, you can check out the compass macro example (File>open>Examples), to assist producing sketch as bellow:



Check out this video for how to https://youtu.be/6jO06nVZVz8

Nevertheless, given the dynamic nature of the sketch, it is better to use a complete circle, otherwise when you drag around some points, the arcs may not intersect any more. Of course, visually it is not as nice as using only arcs ;-)

Best

Hilaire


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Re: Clockwise arc?

chomwitt
In reply to this post by chomwitt
I try to follow your video 'Simulating a compass'  and here is my hexagon in Dr.Geo using the compass macro (how can
i unload a macro?).


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Re: Clockwise arc?

Hilaire Fernandes
Administrator
It looks great! You can hide the red points fencing the arcs.
About the macro you can't unload it, but who care. In last resort you save the sketch without the macro (just do file>save).
However you may want to save the sketch with the macro with menu file > multiple save

Le 09/06/2020 à 16:57, chomwitt [via Dr. Geo Forum] a écrit :
I try to follow your video 'Simulating a compass'  and here is my hexagon in Dr.Geo using the compass macro (how can
i unload a macro?).





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