Examples
Examples
Try the starting example
- JSON Two guide lines represented by four points [[x1,y1],[x2,y2],[x3,y3],[x4,y4]] (drawing units)
- [[0,0],[10,10],[0,10],[10,0]]
- Guide intersection x
- 5
- Guide intersection y
- 5
Try another scenario
- JSON Two guide lines represented by four points [[x1,y1],[x2,y2],[x3,y3],[x4,y4]] (drawing units)
- [[0,0],[10,5],[0,10],[10,5]]
- Guide intersection x
- 10
- Guide intersection y
- 5
Calculation method
Calculation method
Guide intersection x
Line determinant formula; parallel/coincident lines return explicit text.
Guide intersection y
Line determinant formula; parallel/coincident lines return explicit text.
Symbols and units
- a
- JSON Two guide lines represented by four points [[x1,y1],[x2,y2],[x3,y3],[x4,y4]] (drawing units)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Intersection of two infinite perspective guide lines in a single Cartesian drawing plane. No camera calibration; coincident/parallel lines explicitly unsupported for finite vanishing point. Supported limits: Finite coordinates; determinant tolerance 1e−12 drawing-unit².
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.