Why is Point XYZ absolute

Hi I'm attempting to put together the start point of a line using Point XYZ but when I extract the X from another source the value is changed to absolute value. This is most decidedly not the X value of the source point. Is there a way to get the actual value? Maybe I'm missing something simple.

Thanks,

Eric

Replies to This Discussion

Permalink Reply by Andrew Heumann on September 7, 2012 at 5:05pm

That doesn't sound right. Can you post a screenshot of your definition? Keep in mind that the Point XYZ component takes numbers rather than points as inputs. If you want to construct a point A that has the same X coordinate as another point B, you will have to first use "Decompose" to get the X coordinate of B as a number.

Permalink Reply by Eric Jolley on September 7, 2012 at 5:09pm

That was it, thanks. I should have been using Decompose. There is much to learn.

Permalink Reply by Andrew Heumann on September 7, 2012 at 5:46pm

It is helpful to look at the tooltip that appears when you hover over a component input or output. It will tell you what it is supposed to be, as well as what data type it is expecting/outputting. Grasshopper in general performs lots of automatic conversions - between points and vectors, or integers to booleans, etc. Most of the time this is useful, but in this case it confused you because of the automatic conversion of the point to a number (which is why the point XYZ component actually produced a point, just in the wrong place.)

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