connect divide points on two lines with lines ?

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Permalink Reply by Danny Boyes on September 19, 2010 at 1:49pm

One way you could do this is to split the data paths using a combination of Param Viewer¦Split List¦Tree Branch. to get the two sets of points into the two line inputs.

The param viewer component gets you the list of paths and then you split this list in two and send each address to a separate specific tree branch component.

Permalink Reply by Robin Dripps on September 19, 2010 at 3:46pm

in the interests of conserving components, here is a slightly less complicated approach.

Attachments:

• CONNECTING POINTS.png, 487 KB

Permalink Reply by Robin Dripps on September 19, 2010 at 4:00pm

Well that was not so good on my first attempt to post a definition so I will try again

Attachments:

• connecting points.jpg, 166 KB

Permalink Reply by Ardeshir Aliaskari on September 19, 2010 at 7:40pm

hi - thanks for the responses. however, you'll have to explain the entire right half of this definition (including the little spiral node above ellipse) for me to try to understand what is going on. you are working with an older build of grasshopper and our nodes don't look the same. .I would love to look closer at how you are solving it.

Permalink Reply by Robin Dripps on September 19, 2010 at 9:04pm

Hi,
on the assumption that you are referring to the definition that I posted let me try to clarify. First, this was done on 7.055 and I am not aware that this has yet been superseded. The spiral component is the empty parameter component that will reference a curve. In this case it is used only so that I could disable the preview of the ellipse that includes the rather largish and distracting origin plane. I am not sure where the right half of the definition begins so I best start early.
Ellipse and its foci are all move Y-ward.
The moved ellipse is then moved z-ward.
Since I have moved the ellipse as well as its two foci, I need to have access to both the ellipse and these two points.
Exiting from the series component will be the numbers 1 and 2 that indicate the two focal points of the ellipse.
Now lines can be drawn between the original ellipse and the moved ellipse.
These lines are divided.
At this point the structure of the data is such that connecting a line only replicate the two lines already drawn since it will connect two rows of 11 points in this case. What is needed is an arrangement of 11 rows of 2 points (the parameter viewer is a reliable friend). To do this, I could have used the Path mapper, but now David has given us the Flip Matrix component that does this with ease.
Now a polyline will produce the rung-like lines connecting the points on each line.
I hope this makes sense and does not seem overly pedantic.

Permalink Reply by Ardeshir Aliaskari on September 19, 2010 at 9:34pm

I'm sure it is a fine explanation. I am just in the wrong line of business.
Thanks for your effort. I have changed the methodology I am using to construct that thing (the parametric stair) and will come back to your definition if later it seems to be the right thing to do.