Profiles

In Renga you can create arbitrary forms of a profile for beams, columns, plates and holes by using the Profiles editor. In the editor you can create profile of fixed size or parametric profile.

To create and edit profiles, use Manage styles – Profiles on the Primary panel.

In order to create a new profile:

1. In the Profiles editor, create a new style by clicking the New Profile button.
2. Set the new style name.
3. In the right part of window create the profile using the Outline and the Hole tools and also using constraints set.
4. Click OK.

When changing/deleting the styles in the editor, keep in mind that if you click ОК, all the objects in which these styles are used will be changed irrevocably.

Outline and hole

The Outline and Hole tools include the following construction modes:

	Line by specifying two points.
	Arc by specifying three points.
	Arc by specifying start, center, end points.
	Circle by specifying a center point and radius.

Combine the Line by specifying two points, Arc by specifying three points and Arc by the start, center and end points modes during creating an outline (hole). The outline (hole) is completed by pressing the ENTER key.

Mind that the outline (hole) cannot be created correctly if its borders are criss-cross.

In Renga, one profile can consist of several outlines and contain several holes. If a solid body will be created from the profile, create it with a single contour.

All the universal operations are available for profiles construction. The following actions are available with each selected outline (group of outlines):

	Direct array.
	Circular array.
	Mirror.
	Rotate.
	Move.
	Create copy.
	Apply constraints automatically. When applying an action to the selected outline, the parametric constraints are created automatically based on its shape.

Actions to Edit Outline (hole)

Outlines and holes have handles and vertices which are intended to edit them by the following actions:

Constraints

Apply constraints only for those cases when the created profile will serve as a prototype for creating new styles of beams, columns, plates or holes. That is, when changing profile parameters, only its dimensions should change, but the appearance remains unchanged.

The following geometric constraints can be applied to the outlines and holes:

	Horizontal.
	Vertical.
	Equal lengths.
	Perpendicular.
	Align point vertical.
	Align point horizontal.
	Tangent.
	Parallel.
	Equal radius.
	Fix point.

Depending on the chosen geometric constraint, apply it sequentially or in pairs. All created constraints are conditionally displayed next to those parts of the outline to which they are applied.

To delete the geometry constraint, do the following:

1. Select constraint symbol.
2. Click DELETE.

To allow the profile to be assigned different parameters when creating beam and column styles, you can set the following dimensional constraints:

	Horizontal distance between points.
	Vertical distance between points.
	Distance between points.
	Angular.
	Radius.
	Diameter.

To set the dimensional constraint do the following:

1. Select the dimensional constraint that you want to apply.
2. Using tips specify the points between which the dimension will be determined.
3. Select the dimension using the Select tool.
4. Set the following parameters of dimensional constraint:
   

	Constraint name. Can be used to formulate an expression of another constraint.
	Constraint description. Used when assign parameters in the Beam styles, Column styles, Plate styles, and Hole styles editors.
	Constraint expression. It can consist of a number or a formula. When composing a formula, you can use the constraint names that exist in the current profile, arithmetic operators, constants, functions and logical operators, for details, see Formulas.
	Constraint value. Determined automatically by preset parameters.

5. Change the constraint expression and verify that the profile is built correctly.

If there are already constraints on the part of outline, then the new constraints will be applied based on the existing ones.

When the actions are performed, the applied constraints are retained.