Step-Related FAQs
This section presents some Step-related frequently asked questions (FAQs) and their answers.
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Why does the caliper length appear to remain constant in the data visualization window after reaching a particular value?
Related Step: Fit Circle to Surface Edge
The caliper length is limited by the feature region’s side length, namely that it cannot exceed 90% of the feature region’s side length. When its value exceeds this limit, the effective value is automatically adjusted to 90% of the feature region’s side length.
The same holds if the feature region is not used. When the caliper length exceeds 90% of the shorter side of the image’s bounding box, the effective value is automatically adjusted to 90% of the shorter side of the image’s bounding box.
Is it normal for a small part of the surface data to show a decrease or increase in data points after surface transformation?
Related Step: Transform Surface
Yes, it is normal. Surface transformation is the process of converting the surface data into triangular mesh first, performing transformation according to the settings, and then resampling the data back into surface data. During resampling, a small part of the data may encounter a decrease or increase in data points, which is normal and generally has little influence on the measurement results.
If the decrease or increase in data points is severe and is likely to have a large impact on the measurement results, please contact Technical Support.