Vertex Intersect

Location: MANIPULATION section → Vertex Intersect

Description

The Vertex Intersect tool creates vertices at the intersection points of extended edges. It supports multiple modes for different workflows, from simple two-edge intersections to complex multi-edge batch operations.

Usage Modes

Normal Mode (Click)

1. Activate the tool from the MANIPULATION section
2. Click the first edge (highlighted in blue)
3. Click the second edge (highlighted in green, must not be parallel)
4. Intersection vertex created automatically (marked with red square and yellow cross)
5. Use Q/W keys for additional operations:
6. Q: Create connecting edges to nearest endpoints
7. W: Fill face between all created vertices
8. Press Space/Enter to confirm and finish

Auto Mode (Alt+Click)

1. Alt+Click the tool to activate auto mode
2. Select two edges as in normal mode
3. Tool automatically:
4. Creates intersection vertex
5. Adds connecting edges (Q)
6. Fills face (W)
7. Closes tool

Multi-Edge Mode (Ctrl+Click)

1. Ctrl+Click the tool to activate multi-edge mode
2. Click multiple edges (3, 4, or more - highlighted in cyan)
3. Press Space to calculate all possible intersections
4. Use Q/W keys for batch operations:
5. Q: Create all connecting edges for all intersections
6. W: Create all faces for all intersections
7. Press Space/Enter to confirm and finish

Fast Multi Mode (Ctrl+Alt+Click)

1. Ctrl+Alt+Click the tool to activate fast multi mode
2. Select multiple edges as in multi-edge mode
3. Press Space and tool automatically:
4. Calculates all intersections
5. Creates all connecting edges
6. Creates all faces
7. Closes tool

Visual Feedback

• Red edge: Hovered edge (during selection)
• Blue edge: First selected edge
• Green edge: Second selected edge
• Cyan edges: Selected edges in multi mode
• Red square + yellow cross: Intersection vertex location
• White dashed lines: Generated edges and face boundaries

Controls

During Selection

• Left Click: Select edge
• Space: Calculate intersections (multi mode only)
• ESC/Right Click: Cancel operation

During Apply Phase

• Q: Create connecting edges
• W: Fill faces
• Space/Enter: Confirm and finish
• ESC/Right Click: Cancel operation

Features

• Automatic parallel detection: Prevents selection of parallel edges
• Mathematical precision: Uses line-line intersection algorithms
• Visual highlighting: Clear feedback for all selected elements
• Batch processing: Handle multiple intersections simultaneously
• Smart endpoint detection: Automatically finds nearest edge endpoints

Tips

• Works with edges from different objects
• All intersection calculations are done in 3D space
• The tool skips parallel edge pairs in multi mode
• Generated vertices are placed exactly at mathematical intersection points
• Face creation attempts to use all available vertices

Technical Notes

• Creates new mesh objects with intersection vertices
• Supports both coplanar and skew line intersections
• Uses tolerance-based duplicate detection
• Generated geometry includes proper normals and connectivity