Basic 3D Plotting
Summary
In Origin, most 3D plots -- including 3D surface, wire frame/wire surface, 3D bar plot and 2D contour -- are created from an Origin matrix. In most cases, the raw data is XYZ data and you should convert it to a matrix first, using one of Origin's built-in gridding routines.
Minimum Origin Version Required: Origin 8.0 SR6
What you will learn
This tutorial will show you how to:
•Create a 3D graph in Origin
•Convert Worksheet data to a Matrix
•Use the layer contents dialog to add/remove dataset
•Use the Plot Details dialog to modify graph
Steps
1.Import the file \Samples\Matrix Conversion and Gridding\XYZ Random
Gaussian.dat.
2.Highlight the 3rd column, right-click, and select Set As: Z from
the context fly-out menu.
3.To convert the worksheet XYZ data into a matrix, select Worksheet:
Convert to Matrix: XYZ Gridding to bring up the XYZ Gridding dialog.
Select Mean from the drop-down list of the Replace Duplicates with item as below:
4.After that, you can see the right preview panel as below.As you can
see, the XY data are randomly distributed, so a random gridding method should be used.
e the following settings and click OK to convert the XYZ columns
of data into a matrix of data. The TPS gridding method will generate
a smooth surface.
6.Set the new generated matrix as the active window and select Plot:
3D Wires and Bars: Wire Frame from the menu to plot a 3D mesh:
7.In order to plot the original data points on the graph, you can use
the Layer Contents. Right-click on the layer icon and select Layer Contents.
In the Layer Contents dialog, select the worksheet Z column (In this example, xyzrandomgaus_c) and add it into the Layer Contents list.
After you click OK, the source data points will be added to the layer.
8.You can now use the Plot Details dialog to modify the appearance.
Double-click on the graph to bring up the Plot Details dialog. On the left panel, select the 3D scatter data:
And then go to the Symbol tab on the right panel, adjust the symbol type, size and color, etc.
Remove the drop lines on the Drop Lines panel:
9.When done, click OK to accept the modifications:。