Tolerance Cube

Equivalence the whole model using tolerance cube.

Tolerance Sphere

Equivalence the whole model using tolerance sphere.

Tolerance Cube

Equivalence only nodes in groups specified using tolerance cube.

Tolerance Sphere

Equivalence only nodes in groups specified using tolerance sphere.

Tolerance Cube

Equivalence nodes in user-defined lists by cube tolerance.

Tolerance Sphere

Equivalence nodes in user-defined lists by sphere tolerance.

For information on the Equivalence action, see Introduction to Equivalencing, 200.

Use this option to have all nodes in the model considered for equivalencing.

The equivalencing procedure which uses a cube and is the default method used for equivalencing. If Tolerance Cube is selected, then two node points are equivalenced if all of their coordinates in the global Cartesian frame lie within the tolerance of each other. The node with the lower ID is always retained.

Uses a sphere for equivalencing. If Tolerance Sphere is chosen, two node points are equivalenced if the distance between them is within the tolerance.

All selected nodes will be excluded from equivalencing.

A user-definable tolerance parameter used to determine whether two nodes are sufficiently close to be considered coincident, and therefore are subject to nodal equivalencing. By default, this parameter is equal to the Global Model Tolerance set in Global Preferences. The value in the Equivalencing Tolerance databox is used for equivalencing, but the value set in Global Preferences will continue to appear every time equivalencing is reselected.

The tolerance should never be set too low (less than 10.E‑7) since computational round‑off can cause two otherwise identical points to be slightly offset. As part of the equivalencing computations, Patran internally calculates the minimum tolerance that will ensure that no element edges will collapse. If this calculated tolerance is less than the user selected tolerance, then the calculated tolerance is used and a message is issued.

You can display Free Edges or Free Faces

The Verify button does what we have in verify/element/boundaries, and "Preview" button highlights the duplicate nodes Patran has found and would be equivalencing if the apply button is pressed.

For information on the Equivalence action, see Introduction to Equivalencing, 200.

Use this option to have only those nodes belonging to a particular set of groups considered for equivalencing.

Uses a cube and is the default method used for equivalencing. If Tolerance Cube is selected, then two node points are equivalenced if all of their coordinates in the global Cartesian frame lie within the tolerance of each other. The node with the lower ID is always retained.

Uses a sphere for equivalencing. If Tolerance Sphere is chosen, two node points are equivalenced if the distance between them is within the tolerance.

All selected nodes will be excluded from equivalencing.

A user-definable tolerance parameter used to determine whether two nodes are sufficiently close to be considered coincident and therefore are subject to nodal equivalencing. By default, this parameter is equal to the Global Model Tolerance set in Global Preferences. The value in the Equivalencing Tolerance databox is used for equivalencing, but the value set in Global Preferences will continue to appear every time equivalencing is reselected. The tolerance should never be set too low (less than 10.E‑7) since computational round‑off can cause two otherwise identical points to be slightly offset. As part of the equivalencing computations, Patran internally calculates the minimum tolerance that will ensure that no element edges will collapse. If this calculated tolerance is less than the user selected tolerance, then the calculated tolerance is used and a message is issued.

For information on the Equivalence action, see Introduction to Equivalencing, 200.

Use this option to have all nodes in the model considered for equivalencing.

Uses a cube and is the default method used for equivalencing. If Tolerance Cube is selected, then two node points are equivalenced if all of their coordinates in the global Cartesian frame lie within the tolerance of each other. The node with the lower ID is always retained.

Uses a sphere for equivalencing. If Tolerance Sphere is chosen, two node points are equivalenced if the distance between them is within the tolerance.

All selected nodes will be excluded from equivalencing.

A user-definable tolerance parameter used to determine whether two nodes are sufficiently close to be considered coincident and therefore are subject to nodal equivalencing. By default, this parameter is equal to the Global Model Tolerance set in Global Preferences. The value in the Equivalencing Tolerance databox is used for equivalencing, but the value set in Global Preferences will continue to appear every time equivalencing is reselected.

The tolerance should never be set too low (less than 10.E‑7) since computational round‑off can cause two otherwise identical points to be slightly offset. As part of the equivalencing computations, Patran internally calculates the minimum tolerance that will ensure that no element edges will collapse. If this calculated tolerance is less than the user selected tolerance, then the calculated tolerance is used and a message is issued.

Toggle to control entities to preview.

All selected entities associated to a free edge in the posted groups will be added to the display.

All selected entities associated to a free face in the posted groups will be added to the display. Only 3D elements will be used.

Erase all nodes and elements. This button is intended to be used first. It will enable the other options and start out with no nodes and elements visible.

Plot all nodes and elements.

Preview nodes and/or associated elements which are going to be deleted by the equivalence function. This button previews the action taking place by using the apply button.