FORMULA_SURFACE

This element creates a surface defined by a mathematical formula (z=f(x,y)).

	Name	Description	Default
	formula	Mathematical formula for the curveThe formula can reference any parameter, curve or surface available in the skin	empty
	x_variable	name of the "x" variable in the formulaYou can customize the name of the traditional "x" variable in z=f(x,y) formula so that it becomes z=f(variable,y)	x
	y_variable	name of the "y" variable in the formulaYou can customize the name of the traditional "y" variable in z=f(x,y) formula so that it becomes z=f(x,variable)	y
Events
	value_changed	the event is triggered anytime the value of the object has changed
Common attributes
	id	Identifier of the elementThe id of an element has to be globally unique. Don't start with a digit for AngelScript compatibility.	empty

	Name	Value type	Default	Description	Comment
	formula	Math Formula	empty	Mathematical formula for the curve	The formula can reference any parameter, curve or surface available in the skin
	x_variable	string	x	name of the "x" variable in the formula	You can customize the name of the traditional "x" variable in z=f(x,y) formula so that it becomes z=f(variable,y)
	y_variable	string	y	name of the "y" variable in the formula	You can customize the name of the traditional "y" variable in z=f(x,y) formula so that it becomes z=f(x,variable)
Events
	value_changed	event		the event is triggered anytime the value of the object has changed
Common attributes
	id	identifier	empty	Identifier of the element	The id of an element has to be globally unique. Don't start with a digit for AngelScript compatibility.

Examples

The code below creates a surface that is displayed on a 3D graph.

<FORMULA_SURFACE id="demo_surface" formula="tanh(y)*tanh(x*3)" x_min="-2" x_max="2" x_default="0" y_min="-2" y_max="2" y_default="0" z_min="-1" z_max="1" z_default="0"/>
<VIEW_3D id="my_3d_view" width="400" height="250" x_ratio="1" y_ratio="0.8" z_ratio="0.8" transform.tx="0.02" transform.ty="0.02" transform.tz="-1.6" transform.rx="30" transform.ry="0" transform.rz="40" cursor="system::open_hand" persistent_viewpoint="false">
<GRID_3D id="my_3d_view.grid" x_param_info_id="demo_surface.x_info" y_param_info_id="demo_surface.y_info" z_param_info_id="demo_surface.z_info" y_positions_count="11" x_positions_count="11" z_positions_count="11" x_position="-0.5" y_position="-0.5" z_position="-0.5" opacity="0.4" />
<COLOR_SURFACE_3D id="my_3d_view.surface" surface_id="demo_surface" visible="true" draw_style="solid" high_color="#ff0000" low_color="#000030" opacity=".8" x_positions_count="100" y_positions_count="100" x_position="-.5" y_position="-.5" z_position="-.5"/>
</VIEW_3D>

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