Fundamentals > Creo Parametric User Interface > The Analysis Tab > Analyzing Surfaces > To Display the Deviation of a Surface to Points
  
To Display the Deviation of a Surface to Points
1. Click Analysis > Inspect Geometry > Deviation. The Deviation dialog box opens. Quick is the default analysis type. The Analysis tab is selected by default.
2. Click in the From collector and select a surface or a datum plane. The name of the selected surface or datum plane is displayed in the From collector.
3. Click in the To collector and select a datum point, datum plane, datum curve, scan curve, or datum point array to which you want to measure the deviation. The name of the selected reference is displayed in the To collector.
The minimum and maximum deviation is computed and displayed in the result area at the bottom of the Deviation dialog box, and the Creo Parametric graphics window. The deviation plot is displayed with green and red sticks where green denotes deviation within tolerance and red denotes deviation beyond tolerance.
 
* To clear the contents of the collector, right-click in the collector and click Remove on the shortcut menu. You can then continue to select the From and To entities in the collectors.
4. Click OK to complete the analysis or Cancel to cancel the analysis. Alternatively, click Repeat to start a new analysis.
5. Optionally, to save the analysis or create an analysis feature, perform the following steps:
a. Click the Analysis tab if it is not selected by default.
b. Select the desired analysis types from the list at the bottom of the Deviation dialog box.
c. Select Saved to save the analysis with the model, and to display and dynamically update the analysis while modeling or select Feature to create analysis feature.
d. If required, rename the analysis in the box adjacent to the list.
e. Click the Feature tab to change feature options of the current analysis, if required. You can access the feature options only when you select a Feature type of analysis.
6. Optionally, to customize or edit your analysis, perform the following steps:
a. Adjust the scale of plot using the thumbwheel or type the required scale value in the Scale box. You can also adjust the scale graphically using the handle on the entity.
b. Adjust the threshold value using the thumbwheel or type the required threshold value in the Threshold box. You can change the threshold value graphically by typing the value directly in the Creo Parametric graphics window.
c. Update is selected by default. You can see the effects of your selections or changes on the analysis plot as you make them. Clear the Update check box to select or adjust multiple analysis options, and then click Preview to view the result of analysis.