godot/doc/classes/Line2D.xml

<?xml version="1.0" encoding="UTF-8" ?>
<class name="Line2D" inherits="Node2D" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
	<brief_description>
		A 2D line.
	</brief_description>
	<description>
		A line through several points in 2D space. Supports varying width and color over the line's length, texturing, and several cap/joint types.
		[b]Note:[/b] By default, Godot can only draw up to 4,096 polygon points at a time. To increase this limit, open the Project Settings and increase [member ProjectSettings.rendering/limits/buffers/canvas_polygon_buffer_size_kb] and [member ProjectSettings.rendering/limits/buffers/canvas_polygon_index_buffer_size_kb].
	</description>
	<tutorials>
		<link title="Matrix Transform Demo">https://godotengine.org/asset-library/asset/584</link>
		<link title="2.5D Demo">https://godotengine.org/asset-library/asset/583</link>
	</tutorials>
	<methods>
		<method name="add_point">
			<return type="void" />
			<argument index="0" name="position" type="Vector2" />
			<argument index="1" name="index" type="int" default="-1" />
			<description>
				Adds a point with the specified [code]position[/code] relative to the line's own position. Appends the new point at the end of the point list.
				If [code]index[/code] is given, the new point is inserted before the existing point identified by index [code]index[/code]. Every existing point starting from [code]index[/code] is shifted further down the list of points. The index must be greater than or equal to [code]0[/code] and must not exceed the number of existing points in the line. See [method get_point_count].
			</description>
		</method>
		<method name="clear_points">
			<return type="void" />
			<description>
				Removes all points from the line.
			</description>
		</method>
		<method name="get_point_count" qualifiers="const">
			<return type="int" />
			<description>
				Returns the amount of points in the line.
			</description>
		</method>
		<method name="get_point_position" qualifiers="const">
			<return type="Vector2" />
			<argument index="0" name="index" type="int" />
			<description>
				Returns the position of the point at index [code]index[/code].
			</description>
		</method>
		<method name="remove_point">
			<return type="void" />
			<argument index="0" name="index" type="int" />
			<description>
				Removes the point at index [code]index[/code] from the line.
			</description>
		</method>
		<method name="set_point_position">
			<return type="void" />
			<argument index="0" name="index" type="int" />
			<argument index="1" name="position" type="Vector2" />
			<description>
				Overwrites the position of the point at index [code]index[/code] with the supplied [code]position[/code].
			</description>
		</method>
	</methods>
	<members>
		<member name="antialiased" type="bool" setter="set_antialiased" getter="get_antialiased" default="false">
			If [code]true[/code], the line's border will attempt to perform antialiasing by drawing thin OpenGL smooth lines on the line's edges.
			[b]Note:[/b] Line2D is not accelerated by batching if [member antialiased] is [code]true[/code].
			[b]Note:[/b] Due to how it works, built-in antialiasing will not look correct for translucent lines and may not work on certain platforms. As a workaround, install the [url=https://github.com/godot-extended-libraries/godot-antialiased-line2d]Antialiased Line2D[/url] add-on then create an AntialiasedLine2D node. That node relies on a texture with custom mipmaps to perform antialiasing. 2D batching is also still supported with those antialiased lines.
		</member>
		<member name="begin_cap_mode" type="int" setter="set_begin_cap_mode" getter="get_begin_cap_mode" enum="Line2D.LineCapMode" default="0">
			Controls the style of the line's first point. Use [enum LineCapMode] constants.
		</member>
		<member name="default_color" type="Color" setter="set_default_color" getter="get_default_color" default="Color( 0.4, 0.5, 1, 1 )">
			The line's color. Will not be used if a gradient is set.
		</member>
		<member name="end_cap_mode" type="int" setter="set_end_cap_mode" getter="get_end_cap_mode" enum="Line2D.LineCapMode" default="0">
			Controls the style of the line's last point. Use [enum LineCapMode] constants.
		</member>
		<member name="gradient" type="Gradient" setter="set_gradient" getter="get_gradient">
			The gradient is drawn through the whole line from start to finish. The default color will not be used if a gradient is set.
		</member>
		<member name="joint_mode" type="int" setter="set_joint_mode" getter="get_joint_mode" enum="Line2D.LineJointMode" default="0">
			The style for the points between the start and the end.
		</member>
		<member name="points" type="PoolVector2Array" setter="set_points" getter="get_points" default="PoolVector2Array(  )">
			The points that form the lines. The line is drawn between every point set in this array. Points are interpreted as local vectors.
		</member>
		<member name="round_precision" type="int" setter="set_round_precision" getter="get_round_precision" default="8">
			The smoothness of the rounded joints and caps. Higher values result in smoother corners, but are more demanding to render and update. This is only used if a cap or joint is set as round.
			[b]Note:[/b] The default value is tuned for lines with the default [member width]. For thin lines, this value should be reduced to a number between [code]2[/code] and [code]4[/code] to improve performance.
		</member>
		<member name="sharp_limit" type="float" setter="set_sharp_limit" getter="get_sharp_limit" default="2.0">
			The direction difference in radians between vector points. This value is only used if [member joint_mode] is set to [constant LINE_JOINT_SHARP].
		</member>
		<member name="texture" type="Texture" setter="set_texture" getter="get_texture">
			The texture used for the line's texture. Uses [code]texture_mode[/code] for drawing style.
		</member>
		<member name="texture_mode" type="int" setter="set_texture_mode" getter="get_texture_mode" enum="Line2D.LineTextureMode" default="0">
			The style to render the [code]texture[/code] on the line. Use [enum LineTextureMode] constants.
		</member>
		<member name="width" type="float" setter="set_width" getter="get_width" default="10.0">
			The line's width.
		</member>
		<member name="width_curve" type="Curve" setter="set_curve" getter="get_curve">
			The line's width varies with the curve. The original width is simply multiply by the value of the Curve.
		</member>
	</members>
	<constants>
		<constant name="LINE_JOINT_SHARP" value="0" enum="LineJointMode">
			The line's joints will be pointy. If [code]sharp_limit[/code] is greater than the rotation of a joint, it becomes a bevel joint instead.
		</constant>
		<constant name="LINE_JOINT_BEVEL" value="1" enum="LineJointMode">
			The line's joints will be bevelled/chamfered.
		</constant>
		<constant name="LINE_JOINT_ROUND" value="2" enum="LineJointMode">
			The line's joints will be rounded.
		</constant>
		<constant name="LINE_CAP_NONE" value="0" enum="LineCapMode">
			Don't draw a line cap.
		</constant>
		<constant name="LINE_CAP_BOX" value="1" enum="LineCapMode">
			Draws the line cap as a box.
		</constant>
		<constant name="LINE_CAP_ROUND" value="2" enum="LineCapMode">
			Draws the line cap as a circle.
		</constant>
		<constant name="LINE_TEXTURE_NONE" value="0" enum="LineTextureMode">
			Takes the left pixels of the texture and renders it over the whole line.
		</constant>
		<constant name="LINE_TEXTURE_TILE" value="1" enum="LineTextureMode">
			Tiles the texture over the line. The texture must be imported with [b]Repeat[/b] enabled for it to work properly.
		</constant>
		<constant name="LINE_TEXTURE_STRETCH" value="2" enum="LineTextureMode">
			Stretches the texture across the line. Import the texture with [b]Repeat[/b] disabled for best results.
		</constant>
	</constants>
</class>