64dfdeb3-c6bb-4bf5-bcb6-dd8ea08cde1e 50 Shape containers for Modeller Andrey Ivashov This example shows how it is possible to handle Shapes as containers for others. Which means possibility to add Shapes on another Shapes to support one Shapes dependence from others. SMath, http://smath.info/ 4 5 decimal
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This example shows how it is possible to handle Shapes as containers for others. Which means possibility to add Shapes on another Shapes to support one Shapes dependence from others.

 <p>Objects</p>

Template of Rectangle Shape.

rect Rectangle 0 1 1 0 0 0 0 1 1 0 2 5 mat transpose Black 2 1 3 mat 1 60 60 2 1 mat 30 30 2 1 mat 0 3 1 7 mat :

Important note: the last argument (arg #7) determins container template supported by current Shape template. I.e. Modeller's palette will show button for current Shape only if required container is focused. Value of this argument must be equal to the # of Shape templates in templates variable for Modeller. So, button for "Rectangle" Shape will be shown on Modeller's palette only if "id" argument of "predifined()" function will be equal to "3" (see description of "id" for "predefined()" below).

Template of Arrow Shape.

arrow Arrow 0 0 0 1 2 2 mat Black 1 1 - 0.5 0 1 1 0.5 3 2 mat Brown 2 2 3 mat 1 20 40 2 1 mat 10 40 2 1 mat 0 1 1 7 mat : <p>Settings</p>

List of templates supported by Modeller.

templates rect arrow 2 1 sys :

Scale of the Modeller.

layout 0 100 1 2 mat :

Function to provide logic for Modeller before output variable composing. Every argument value can be changed within function to affect Modeller's logic. objs - Matrix of drawn shapes. It will be returned as output variable of Modeller. Change it to control Shapes drawn on the canvas. ratio - Zoom ratio of Modeller canvas. x - X position of the canvas. y - Y position of the canvas. id - If positive: id of the Shape to be used as container and current context (every next added Shape become a child of container). If negative: value means template # to be used as current context (to limit tempates shown on pallette at right). Returns - list of predefined static (with no possibility to interact) Shapes to be drawn on canvas.

objs ratio x y id predefined objs 0 ≠ selected objs 1 6 findrows : selected 0 ≠ selected 1 1 el 1 ≡ id selected 1 8 el : 0 if id 3 - : if 2 1 line id 3 - : if 0 2 1 line :

if objs≠0 - no need to do anything if no Shapes drawn | selected:=findrows(objs;1;6) - searching for currently focused Shape | if selected≠0 - ensures at least one Shape is focused | | if selected 1 1 = 1 - checks if current type of the Shape is "Rectangle" | | id:=selected 1 8 - sets "id" of currently selected Shape to make it a container | | else | | 0 - otherwise leave "id" as is | else | id:=-3 - if no Shape focused sets context to container # supported by else "Rectangle" Shape (see last argument of "Rectengle" Template) id:=-3 - if no Shapes drawn palette should show only "Rectangle" Shape (see also comment for previous line) 0 - no need to draw any static predefined Shape

Modeller Region with canvas to draw Shapes on and palette to add new Shapes from.

 output 0