Scripted Geometry Plug-ins

A scripted Geometry plug-in is declared by specifying the <superclass> as geometry .

Scripted Geometry plug-ins require a create tool unless they are invisible, temporary, or extend another plug-in.

If the plug-in extends another plug-in, and a create tool is specified, it will override the delegate's create tool.

EXAMPLE:

   plugin geometry foo_plugin_def
   name:"FooBar"
   category:"Scripted Primitives"
   (
   local boxes = #()
   local clickAt
   tool create
   (
   on mousePoint click do
   (
   clickAt = worldPoint
   boxes =for i in 1 to 10 collect box pos:([i*20,0,0] + clickAt)
   #stop
   )
   )
   rollout frab "Parameters"
   (
   spinner frab_value "Frabulate" range:[-1000,1000,20]
   on frab_value changed val do
   for i in 1 to boxes.count do
   boxes[i].pos = [i*val,0,0] + clickAt
   )
   )

This adds a new geometry category with one button to the Create panel. Pressing the FooBar button starts a mouse command mode that creates a row of 10 boxes where you click and adds a rollout to the command panel with one spinner that lets you adjust the separation of the boxes. This is very similar to a System object like the RingArray, except it lives in the Geometry tab. This is the simplest type of scripted of plug-in; it has no specific scene object and no storable parameters.

In the tool handlers, you can set the delegate properties as needed.

FOR EXAMPLE:

   plugin geometry Cuboid
   name:"Cuboid"
   classID:#(0x133067, 0x54374)
   category:"Scripted Primitives"
   extends:Box
   (
   fn fmax val1 val2 = if val1 > val2 then val1 else val2
   tool create
   (
   on mousePoint click do
   case click of
   (
   1: nodeTM.translation = gridPoint
   2: #stop
   )
   on mouseMove click do
   if click == 2 then
   delegate.width = delegate.length =
   delegate.height = 2 * fmax (abs gridDist.x) (abs gridDist.y)
   )
   )