LineSegs

from panda3d.core import LineSegs
class LineSegs

Bases: Namable

Encapsulates creation of a series of connected or disconnected line segments or points, for drawing paths or rays. This class doesn’t attempt to be the smartest it could possibly be; it’s intended primarily as a visualization and editing tool.

Inheritance diagram

Inheritance diagram of LineSegs

__init__(*args, **kwargs)
create()

C++ Interface: create(const LineSegs self) create(const LineSegs self, GeomNode previous, bool dynamic) create(const LineSegs self, bool dynamic)

/**

  • Creates a new GeomNode that will render the series of line segments and

  • points described via calls to move_to() and draw_to(). The lines and

  • points are created with the color and thickness established by calls to

  • set_color() and set_thickness().

  • If dynamic is true, the line segments will be created with the dynamic Geom

  • setting, optimizing them for runtime vertex animation.

*/

/**

  • Appends to an existing GeomNode a new Geom that will render the series of

  • line segments and points described via calls to move_to() and draw_to().

  • The lines and points are created with the color and thickness established

  • by calls to set_color() and set_thickness().

  • If dynamic is true, the line segments will be created with the dynamic Geom

  • setting, optimizing them for runtime vertex animation.

*/

drawTo()

C++ Interface: draw_to(const LineSegs self, const LVecBase3f v) draw_to(const LineSegs self, float x, float y, float z)

/**

  • Draws a line segment from the pen’s last position (the last call to move_to

  • or draw_to) to the indicated point. move_to() and draw_to() only update

  • tables; the actual drawing is performed when create() is called.

*/

/**

  • Draws a line segment from the pen’s last position (the last call to move_to

  • or draw_to) to the indicated point. move_to() and draw_to() only update

  • tables; the actual drawing is performed when create() is called.

*/

draw_to()

C++ Interface: draw_to(const LineSegs self, const LVecBase3f v) draw_to(const LineSegs self, float x, float y, float z)

/**

  • Draws a line segment from the pen’s last position (the last call to move_to

  • or draw_to) to the indicated point. move_to() and draw_to() only update

  • tables; the actual drawing is performed when create() is called.

*/

/**

  • Draws a line segment from the pen’s last position (the last call to move_to

  • or draw_to) to the indicated point. move_to() and draw_to() only update

  • tables; the actual drawing is performed when create() is called.

*/

getCurrentPosition()

C++ Interface: get_current_position(const LineSegs self)

/**

  • Returns the pen’s current position. The next call to draw_to() will draw a

  • line segment from this point.

*/

getNumVertices()

C++ Interface: get_num_vertices(LineSegs self)

// Functions to move the line vertices after they have been created.

// Functions to move the line vertices after they have been created.

// Functions to move the line vertices after they have been created.

/**

  • Returns the total number of line segment and point vertices generated by

  • the last call to create(). The positions of these vertices may be read and

  • adjusted through get_vertex() and set_vertex().

*/

getVertex()

C++ Interface: get_vertex(LineSegs self, int n)

/**

  • Returns the nth point or vertex of the line segment sequence generated by

  • the last call to create(). The first move_to() generates vertex 0;

  • subsequent move_to() and draw_to() calls generate consecutively higher

  • vertex numbers.

*/

getVertexColor()

C++ Interface: get_vertex_color(LineSegs self, int vertex)

/**

  • Returns the color of the nth point or vertex.

*/

getVertexColors()
getVertices()
get_current_position()

C++ Interface: get_current_position(const LineSegs self)

/**

  • Returns the pen’s current position. The next call to draw_to() will draw a

  • line segment from this point.

*/

get_num_vertices()

C++ Interface: get_num_vertices(LineSegs self)

// Functions to move the line vertices after they have been created.

// Functions to move the line vertices after they have been created.

// Functions to move the line vertices after they have been created.

/**

  • Returns the total number of line segment and point vertices generated by

  • the last call to create(). The positions of these vertices may be read and

  • adjusted through get_vertex() and set_vertex().

*/

get_vertex()

C++ Interface: get_vertex(LineSegs self, int n)

/**

  • Returns the nth point or vertex of the line segment sequence generated by

  • the last call to create(). The first move_to() generates vertex 0;

  • subsequent move_to() and draw_to() calls generate consecutively higher

  • vertex numbers.

*/

get_vertex_color()

C++ Interface: get_vertex_color(LineSegs self, int vertex)

/**

  • Returns the color of the nth point or vertex.

*/

get_vertex_colors()
get_vertices()
isEmpty()

C++ Interface: is_empty(const LineSegs self)

/**

  • Returns true if move_to() or draw_to() have not been called since the last

  • reset() or create(), false otherwise.

*/

is_empty()

C++ Interface: is_empty(const LineSegs self)

/**

  • Returns true if move_to() or draw_to() have not been called since the last

  • reset() or create(), false otherwise.

*/

moveTo()

C++ Interface: move_to(const LineSegs self, const LVecBase3f v) move_to(const LineSegs self, float x, float y, float z)

/**

  • Moves the pen to the given point without drawing a line. When followed by

  • draw_to(), this marks the first point of a line segment; when followed by

  • move_to() or create(), this creates a single point.

*/

/**

  • Moves the pen to the given point without drawing a line. When followed by

  • draw_to(), this marks the first point of a line segment; when followed by

  • move_to() or create(), this creates a single point.

*/

move_to()

C++ Interface: move_to(const LineSegs self, const LVecBase3f v) move_to(const LineSegs self, float x, float y, float z)

/**

  • Moves the pen to the given point without drawing a line. When followed by

  • draw_to(), this marks the first point of a line segment; when followed by

  • move_to() or create(), this creates a single point.

*/

/**

  • Moves the pen to the given point without drawing a line. When followed by

  • draw_to(), this marks the first point of a line segment; when followed by

  • move_to() or create(), this creates a single point.

*/

reset()

C++ Interface: reset(const LineSegs self)

/**

  • Removes any lines in progress and resets to the initial empty state.

*/

setColor()

C++ Interface: set_color(const LineSegs self, const LVecBase4f color) set_color(const LineSegs self, float r, float g, float b, float a)

/**

  • Establishes the color that will be assigned to all vertices created by

  • future calls to move_to() and draw_to().

*/

/**

  • Establishes the color that will be assigned to all vertices created by

  • future calls to move_to() and draw_to().

*/

setThickness()

C++ Interface: set_thickness(const LineSegs self, float thick)

/**

  • Establishes the line thickness or point size in pixels that will be

  • assigned to all lines and points created by future calls to create().

*/

setVertex()

C++ Interface: set_vertex(const LineSegs self, int n, const LPoint3f vert) set_vertex(const LineSegs self, int vertex, float x, float y, float z)

/**

  • Moves the nth point or vertex of the line segment sequence generated by the

  • last call to create(). The first move_to() generates vertex 0; subsequent

  • move_to() and draw_to() calls generate consecutively higher vertex numbers.

*/

/**

  • Moves the nth point or vertex of the line segment sequence generated by the

  • last call to create(). The first move_to() generates vertex 0; subsequent

  • move_to() and draw_to() calls generate consecutively higher vertex numbers.

*/

setVertexColor()

C++ Interface: set_vertex_color(const LineSegs self, int vertex, const LVecBase4f c) set_vertex_color(const LineSegs self, int vertex, float r, float g, float b, float a)

/**

  • Changes the vertex color of the nth point or vertex. See set_vertex().

*/

/**

  • Changes the vertex color of the nth point or vertex. See set_vertex().

*/

set_color()

C++ Interface: set_color(const LineSegs self, const LVecBase4f color) set_color(const LineSegs self, float r, float g, float b, float a)

/**

  • Establishes the color that will be assigned to all vertices created by

  • future calls to move_to() and draw_to().

*/

/**

  • Establishes the color that will be assigned to all vertices created by

  • future calls to move_to() and draw_to().

*/

set_thickness()

C++ Interface: set_thickness(const LineSegs self, float thick)

/**

  • Establishes the line thickness or point size in pixels that will be

  • assigned to all lines and points created by future calls to create().

*/

set_vertex()

C++ Interface: set_vertex(const LineSegs self, int n, const LPoint3f vert) set_vertex(const LineSegs self, int vertex, float x, float y, float z)

/**

  • Moves the nth point or vertex of the line segment sequence generated by the

  • last call to create(). The first move_to() generates vertex 0; subsequent

  • move_to() and draw_to() calls generate consecutively higher vertex numbers.

*/

/**

  • Moves the nth point or vertex of the line segment sequence generated by the

  • last call to create(). The first move_to() generates vertex 0; subsequent

  • move_to() and draw_to() calls generate consecutively higher vertex numbers.

*/

set_vertex_color()

C++ Interface: set_vertex_color(const LineSegs self, int vertex, const LVecBase4f c) set_vertex_color(const LineSegs self, int vertex, float r, float g, float b, float a)

/**

  • Changes the vertex color of the nth point or vertex. See set_vertex().

*/

/**

  • Changes the vertex color of the nth point or vertex. See set_vertex().

*/