| T O P I C R E V I E W |
| Nasenblutn |
Posted - 01/04/2008 : 08:49:40 AM
Hi folks,
just need some help in a particular thing.
I want to create a 3D-diagram but I don't have for every XY coordinate a specific value.
So my question now is...can I interpolate the missing values so that I get a smooth graphic and the not existing values? Do I have to create it with Worksheet or with a matrixsheet?
If somebody could help me I, that would be great.
Thank you all.
Dan :-) |
| 1 L A T E S T R E P L I E S (Newest First) |
| easwar |
Posted - 01/04/2008 : 09:22:02 AM
Hi Dan,
So your data is in XYZ format, right? You can use Origin to perform gridding on your data and generate a matrix that is regularly spaced in X and Y - the gridding can be thought of as an interpolation process.
With your XYZ data in a worksheet, highlight the Z column and look at the menu. If you are running versions older than 8.0, the menu item to look for is Edit->Convert to Matrix. If you are running 8.0, the menu item is Worksheet->Convert to Matrix.
The latest 8.0 version also has better methods compared to the older versions, such as Thin Plate Spline gridding. Also in 8.0 you can directly create a contour plot from your raw XYZ data, if you wish, without creating a matrix first.
Easwar
OriginLab
|
|
|
