3D Topology Preprocessing
Instructions for use
Before using Topology Dataset to perform Topology Check on a Relation, it is necessary to perform Topological preprocessing on the Topology Check data, and adjust the problem data within the tolerance range through preprocessing. Failure to perform Topological preprocessing may result in errors in the results of Topology Check. 3D Topology Preprocessing provides Node Snap processing, which currently only supports 3D Line Dataset.
Function entrance
- Data Tab-> Topology Group-> Topology Preprocessing Drop-down Button-> 3D Topology Preprocessing.
Operation steps
- Click the 3D preprocessing function, click the Add button in the toolbar, and add the 3D Line Dataset requiring Topological preprocessing in the Dataset List box.
- Set Tolerance for the tolerance value of Topological preprocessing. It is a distance value, which means that all nodes or (and) lines are considered to be coincident and identical within the range of this value. For example, if the node of a line object is within tolerance from the node of another line object, the two nodes are considered to be coincident; if the node of a line object is within tolerance from a point object, the point is considered to be on the line. Topological preprocessing is performed when the distance between nodes or (and) lines is less than tolerance value. See Tolerance description for details.
- Node Snap: Snap the nodes within the tolerance range together (that is, change the nodes snapped together to the same 2D coordinates), where "Node" means all the control nodes of the pointing object, line object and face object. When the Node Snap checkbox is selected, a Dataset can be selected at the Reference dataset ", and the node position of the Dataset can be used as a reference for snapping. After snapping, the adjacent points of line objects and face objects within the tolerance range will be removed. The effect of Node Snap processing is shown in the following figure. Topology Preprocessing Topology Preprocessing
Before After - Click OK to perform DatasetTopological preprocessing.