Circle¶

In the Create Features toolbar, click Circle to expand the drop-down list, where you can select Pick on CAD Model, Fit, From Features and From Cross-Section creation methods.

Pick on CAD Model¶

Create circle features by directly clicking on the geometric features shaped as circles of the CAD model.

Note

Before creating circle features using the CAD auto creation method, please import a reference model.
This method supports specifying features as reference features or measured features.
If you Define the Feature as Reference Feature, then you can extract the measured feature to generate feature pairs before importing at least one measured model.
You can also use the CAD Auto Create method in the Assisted Feature Creation toolbar to automatically create features.

The steps for creating circle features through picking on CAD model as well as extracting measured features are as follows:

Select Pick on CAD Model in the drop-down list of Circle to open the corresponding window.
Click on the highlighted circle feature of the model in the 3D scene to create, and define the feature as Reference Feature in the window of Pick on CAD Model.
Click Confirm to save the reference circle feature, and the reference circle object will be displayed in the feature module in the left-side tree view.

Note

If you check Extract Measured Feature (you can enable Auto Extract Measured Features in Setting > Feature), then the corresponding measured feature will be the automatically extracted after you create a reference feature.
Right-click on that circle feature group in the left-side tree view, select Extract Measured Feature and determine the measured model on which the feature will be extracted.
In the pop-up Circle window, select an align mode, edit parameters including max distance, boundary exclusion distance and so on, as well as set eliminate noise, and click Confirm to create the corresponding measured circle feature.
The measured circle object will be displayed in the corresponding circle feature group in the left-side tree view.

Fit¶

Create circle features by fitting geometric features shaped as circles through selecting points on the mesh model.

Note

Before creating circle features using the fit method, please import a reference model or a measured model (meshed).
This method supports specifying features as reference features or measured features.
If you Define the Feature as Reference Feature, then you can extract the measured feature to generate feature pairs before importing at least one measured model.

The steps for creating circle features through fit are as follows:

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Select Fit in the drop-down list of Circle to open the corresponding window.
Edit parameters including eliminate noise, as well as define the feature as reference feature or measured feature.
After completing relevant settings, you can select tools in the toolbar under the 3D scene, and select areas to be fitted on the model; then click Confirm to save the circle feature, which will be displayed in the feature module in the left-side tree view.

Note

If you check Extract Measured Feature (you can enable Auto Extract Measured Features in Setting > Feature), then the corresponding measured feature will be the automatically extracted after you create a reference circle feature.

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The introduction to toolbar as well as shortcuts is as follows:

Icon	Name	Description
	Sphere	Select mesh vertices on the surface of the mesh model to choose the fitting region. Note After enabling this function, other selection tools or the select through function can not be used.
	Magic Wand	Automatically select adjacent regions on the surface of the mesh model based on curvature. Note After enabling this function, other selection tools or the select through function can not be used.
	Select Through	Disabled by default, which means only visible surfaces can be selected; It can be enabled to select both the front and back regions of the model.
	Rectangle	Select / Deselect the data area in the form of rectangle.
	Polygon	Select / Deselect the data area in the form of polygon.
	Lasso	Select / Deselect the data area in the form of lasso.
	Brush	Use brush (support brush adjusting) to select / deselect the data area.

Function	Shortcut
Select	`Shift`+`left-button`
Deselect	`Ctrl`+`left-button`
Adjust the size brush	`Shift`+`left-button`

Note

For more shortcuts, please refer to > Shortcut Instructions in the top right corner of the interface.

From Features¶

Create new circle features based on the intersection of existing cones or cylinders with planes.

Note

Before creating circle features using this method, please import a reference model or a measured model, and ensure that there exists at least one created cone / cylinder and plane features.
This method does not support defining features: If the selected feature is a reference / measured feature, the created new feature can only be a reference / measured feature.
If a reference feature is created, then you can extract the measured feature to generate feature pairs before importing at least one measured model.

The steps for creating circle features from features as well as extracting measured features are as follows:

Select From Features > Intersection of Plane and Cone / Intersection of Plane and Cylinder in the drop-down list of Circle to open the corresponding window.
Select the corresponding created reference feature, and click Confirm to save the new circle feature, which will be displayed in the feature module in the left-side tree view ( indicates the feature group created through this method).
Note
- Please select the cone / cylinder and plane features that are both reference features or measured features, or it will prompt “ The selected features must include reference features or measured features”.
- If it prompts “ Feature Creation Failed”，please check whether the selected cone / cylinder does not intersect with the plane, intersects at a single point, or is parallel with the plane.
Right-click on that circle feature group in the left-side tree view, select Extract Measured Feature to create the corresponding measured circle feature.
The measured circle object will be displayed in the corresponding circle feature group in the left-side tree view.

From Cross-Section¶

Create circle features based on existing cross-sections.

Note

Before creating circle features using this method, please ensure that there exists at least one created cross-section.
This method supports specifying features as reference features or measured features
If you Define the Feature as Reference Feature, then you can extract the measured featureeast one measured model.

The steps for creating circle features from cross-sections are as follows:

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Select From Cross-Section in the drop-down list of Circle to open the corresponding window.
Select cross-section and edit parameters including remove outliers, as well as define the feature as reference feature or measured feature.
Click Confirm to save the circle feature, which will be displayed in the feature module in the left-side tree view.

Note

If you check Extract Measured Feature (you can enable Auto Extract Measured Features in Setting > Feature), then the corresponding measured feature will be the automatically extracted after you create a reference circle feature.

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