Interpolating data

[pglatta]

I have a set of 20 data points that make up an arc. The data consists of time and then a lat/long position. I want more than 20 data points. I want to interpolate and fill the gaps in between my existing data to make a smoother curve so I can have let's say 100 points. How can I do this using functions in LabView specifically?

[santo_13]

LabVIEW has a bunch of math functions for interpolation and extrapolation.

https://www.ni.com/docs/en-US/bundle/labview-api-ref/page/menus/categories/mathematics/aninterpextra...

[Kyle97330]

Depending on your data, if very simple linear interpolation is all you need, you can just use "Interpolate 1D Array" from the Array palette.  Nowhere near as many options as from the palette Santo showed, but it's way easier if it's all you need.

[Henrik_Volkers]

fitting an arc is a common problem in measurering by vision systems. If you know it's an arc you can fit an arc and use the arc parameters to show more points.

I don't have vision vis installed but maybe there or in the vi packet manager you can find a vi to fit an arc.

[alexderjuengere]

---

@santo_13 wrote:

LabVIEW has a bunch of math functions for interpolation and extrapolation.

---

oh, I wasn't awre of the "search ordered table.vi"