FerrariSketch

When using the surface pull film plug-in, you need to pay attention to the operation process: < br / >Create a film drawing surface: draw 1-2 closed contour lines → generate skin → calculate surface; < br / >Edit film surface: switch edit mode → edit cable / edit film surface → calculate surface.

Generate skin: < br / >Select 1 or 2 closed contour lines, set inflation pressure, warp weft tension ratio, default sideline cable tension, subdivision and accuracy settings after executing the command, and then confirm to finish skinning and continue to calculate the surface.

Calculated surface: < br / >After skinning or editing the cable sidelines and membrane surfaces, execute the command to complete the surface calculation and generate the results.

Switch edit mode: < br / >After selecting the group of membranes to be adjusted, execute the command to enter the editing state, and you can continue to edit the cable or membrane surface.

Edit cable: < br / >After switching to editing mode, execute the command to select the corresponding sideline of the cable to be edited, set the cable tension and whether to straighten the sideline, and recalculate the surface after editing.

Edit membrane surface: < br / >After the command is executed, the inflation pressure, tension ratio between warp and weft, warp direction and accuracy are set. After the editing, the surface needs to be recalculated.

Parameter Description: < br / >1. Setting a higher subdivision or inflation pressure value will increase the calculation time of the surface, please wait patiently.
2. The meridian direction is only valid when the sideline is polygon, and the direction angle is the angle between the red axis and the sideline, which is along the meridian direction by default.
3. Increasing the value of the default side cable tension will increase the boundary tension and make the boundary curve more straight.
4, the subdivision default value is 20, which is used for rectangular patch structure. When the shape of the resulting film is not ideal, it is recommended to improve the subdivision value.
5, radial subdivision / angle subdivision default values of 12 and 36 are used for circular patch structure. When subsection shape is not ideal, subdivision value is recommended.
6. The accuracy value is judged as the termination of surface calculation according to Dmax & lt; H.10 ^ - A, where Dmax is the maximum offset of two iterations, h is the height of membrane surface, and a is the accuracy value. The higher the value is, the higher the calculation accuracy is.

Please note: the generated surface is drawn, and it cannot be edited again if it is reopened after saving.