Good day
I am learning Orca 3D software to eventually modify a semi-planing hull
Do anyone knows how can i manipulate the hull with Orca 3D
Do let me know (ideally with pictures) on (if it is possible) on using the Hull Assistant to develop and manipulate hull shape
Regards
Dominnic Tan
Hi Dominic,
From within the Orca3D hull wizard, you can work with the many hull parameters and sliders.
From within the Rhino graphical interface, I invite you to edit the Control Polygon (Command OrcaPointsOn), and manipulate the control points:
It is always more “efficient” to select control points by group, rather than individual control points. Commands such as move, scale 1D/2D/3D, SetPt, SelU, SelV, moveUVN etc are useful or this work. I also find the Gumball particularly useful.
Your work will probably be rather “experimental” at the beginning. When self-learning the process, it is common to wander around and try different things. Do not hesitate to save incrementally and regularly your work, or use Rhino layers, so that you can more easily step back to a prvious iteration of your own work.
It is often more convenient to work with a half-model. When running real-time hydrostatics, or stability or powering, you will be offered to mirror geometry about centreplane.
I hoep this helps.
Thank you for this kind advice.
Is there any way to control this movements other than mouse dragging?
I find it abit… difficult to achieve measurable changes
Hi Dominic,
Rhino3D offers several options to edit control points. from coarse movements (mouse dragging) to fine accurate and quantified: MoveUVN, Gumball, SetPt, keyboard nudge keys, etc.
understood!
I will experiment!
Thank you very much!
When using the gumball you can click the arrow in the direction you want to go and type the distance you want to move, the same can be achieve with the commands that were listed, but the typing will occur on the command line.
Other way to achieve this modification is using orca3d hull assistant and creating a new surface while you existing model is active, this way you can take measures and generate the hull with the same parameters and then start modifying it on the hull assistant itself to achieve the major changes.
I find that control point modification is better for fine work adjustments, I always use hull assistant to achieve 95% of the hull form and only fine tune the last 5% with control points.
Edit. A few videos showing what I meant.
This one is Old but Gold
