@jim said:
Hi Aqualung - is that your plugin? How about a tutorial?
Hi Jim - Yes, it's mine - The only tricky thing to using it is getting the entities in the right order - The plugin uses any un-grouped geometry as input - Additionally, any subsequent operation on the geometry (such as moving, scaling, etc.) potentially alters the order it is returned in a list - My workaround for this is to first create the reference geometry I need, put it in a group, and then trace any new geometry to be used as input.
To reproduce the spiral in question, create a circle (I used 12" for the diameter), position it where desired, and then put it into a group:
[image: d33G_sp01.JPG]
Next, create a semi-circle using the three-point circle tool:
[image: lp4j_sp02.JPG]
For five turns of 48 segments each, 240 segments total are needed - In order to spread out the turns, a height of 120" was used along with a scaling factor of 2.0:
[image: oX49_sp03.JPG]
The result should be as shown below:
[image: DezL_sp04.JPG]
If you try to edit the original circle into a semi-circle and subsequently use it as input, you will prpbably end up with something like:
[image: piei_sp05.JPG]
This is a result of modifying the geometry after it's created.
Aqualung