Generating Scalar Values for Meshes

You can add measurements and other values to meshes with Dragonfly's Scalar Generator.

Right-click the mesh to which you want to add scalar values and then choose Scalar Generator in the pop-up menu to open the Scalar Generator dialog, shown below.

Scalar Generator dialog

Scalar Generator dialog

The following categories and items are available in the Scalar Generator for meshes.

Measurements and other values for meshes
  Description

Constant Vertex

Adds a constant vertex value. You can enter a title for the measurement and choose the constant value.

Curvature

Adds curvature measurements computed with the Mean and/or Gaussian method.

Distance from Points

Adds distance measurements computed from the mean position of a series of points.

Note You must first create a points set with the Points tool to enable this option.

Distance from Center of Mass

Adds distance measurements computed from the mesh's center of mass.

Intersection with ROI or Shape

Lets you identify mesh edges that intersect with a region of interest or a shape, such as a box, capsule, cylinder, or sphere. You can enter a title for the measurement and choose the object to intersect with.

Mapping from

Lets you map the scalar values from another object, such as an image, multi-ROI, or scalar mesh. You can enter a title for the measurement, as well as chose the object to map from and a default

scalar value.

Note Mapping from meshes is done with by closest face matching, while mapping from images and multi-ROIs is done through corresponding world coordinates. For best results, the number of distinct objects in the selected mesh and multi-ROI should be equivalent.

Ray-Tracing Thickness

Adds thickness values computed with the normal ray-tracing method.