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# -*- coding: utf-8 -*-
# -----------------------------------------------------------------------------
# Copyright (c) Vispy Development Team. All Rights Reserved.
# Distributed under the (new) BSD License. See LICENSE.txt for more info.
# -----------------------------------------------------------------------------
from ..geometry import create_plane
from .visual import CompoundVisual
from .mesh import MeshVisual
class PlaneVisual(CompoundVisual):
"""Visual that displays a plane.
Parameters
----------
width : float
Plane width.
height : float
Plane height.
width_segments : int
Plane segments count along the width.
height_segments : float
Plane segments count along the height.
direction: unicode
``{'-x', '+x', '-y', '+y', '-z', '+z'}``
Direction the plane will be facing.
vertex_colors : ndarray
Same as for `MeshVisual` class. See `create_plane` for vertex ordering.
face_colors : ndarray
Same as for `MeshVisual` class. See `create_plane` for vertex ordering.
color : Color
The `Color` to use when drawing the cube faces.
edge_color : tuple or Color
The `Color` to use when drawing the cube edges. If `None`, then no
cube edges are drawn.
"""
def __init__(self, width=1, height=1, width_segments=1, height_segments=1,
direction='+z', vertex_colors=None, face_colors=None,
color=(0.5, 0.5, 1, 1), edge_color=None):
vertices, filled_indices, outline_indices = create_plane(
width, height, width_segments, height_segments, direction)
self._mesh = MeshVisual(vertices['position'], filled_indices,
vertex_colors, face_colors, color)
self._mesh.update_gl_state(polygon_offset=(1, 1),
polygon_offset_fill=True)
self._outline = None
CompoundVisual.__init__(self, [self._mesh])
if edge_color:
self._outline = MeshVisual(vertices['position'], outline_indices,
color=edge_color, mode='lines')
self.add_subvisual(self._outline)
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