def draw(self):
if self.dae.scene is None:
logging.debug('Empty draw, DAE has no scene.')
return
gl.glBegin(gl.GL_TRIANGLES)
normal = [0.0, 0.0, 1.0]
for geometry in self.dae.scene.objects('geometry'):
for primitive in geometry.primitives():
# Use primitive-specific ways to get triangles.
primitive_type = type(primitive).__name__
if primitive_type == 'BoundTriangleSet':
triangles = primitive
elif primitive_type == 'BoundPolylist':
triangles = primitive.triangleset()
else:
logging.warning(f'Unsupported mesh used: {primitive_type}')
break
# Add triangles to the display list.
for triangle in triangles:
nidx = 0
for vidx in triangle.indices:
if triangle.normals is None:
normal = [0.0, 0.0, 1.0]
else:
normal = triangle.normals[nidx]
nidx += 1
self.add_vertex(primitive.vertex[vidx], normal)
get_gl_error()
gl.glEnd()
def draw_rect(x, y, width, height): gl.glBegin(gl.GL_QUADS) gl.glVertex2f(x, y) gl.glVertex2f(x + width, y) gl.glVertex2f(x + width, y + height) gl.glVertex2f(x, y + height) gl.glEnd()
def on_draw():
# clears the background with the background color
gl.glClearColor(*background)
gl.glClear(gl.GL_COLOR_BUFFER_BIT)
# draw in a loop
boundary = winsize - 100
gap = (winsize - boundary) / 2
i_width = boundary / len(rgb1)
i_height = boundary / 2
# the first line
for idx, rgb in enumerate(rgb1):
gl.glColor3f(*rgb)
gl.glBegin(
gl.GL_QUADS
) # start drawing a rectangle in counter-clockwise (CCW) order
gl.glVertex2f(gap + idx * i_width,
gap + i_height) # bottom left point
gl.glVertex2f(gap + (idx + 1) * i_width,
gap + i_height) # bottom right point
gl.glVertex2f(gap + (idx + 1) * i_width,
gap + boundary) # top right point
gl.glVertex2f(gap + idx * i_width,
gap + boundary) # top left point
gl.glEnd()
label = pyglet.text.Label(str(color1[idx]),
font_size=7,
x=gap + idx * i_width,
y=gap + boundary + 20)
label.draw()
# # # the second line
for idx, rgb in enumerate(rgb2):
gl.glColor3f(*rgb)
gl.glBegin(
gl.GL_QUADS
) # start drawing a rectangle in counter-clockwise (CCW) order
gl.glVertex2f(gap + idx * i_width, gap) # bottom left point
gl.glVertex2f(gap + (idx + 1) * i_width,
gap) # bottom right point
gl.glVertex2f(gap + (idx + 1) * i_width,
gap + i_height) # top right point
gl.glVertex2f(gap + idx * i_width,
gap + i_height) # top left point
gl.glEnd()
label = pyglet.text.Label(str(color2[idx]),
font_size=7,
x=gap + idx * i_width,
y=gap - 20)
label.draw()
def on_draw():
window.clear()
# create a line context
glBegin(GL_LINES)
# create a line, x,y,z
global drawing_vec
if not drawing_vec == None:
for bstart, bend, estart, eend in drawing_vec:
glVertex3f(bstart, bend, 0.0)
glVertex3f(estart, eend, 0.0)
glEnd()
def circle(x, y, radius, color):
iterations = 20
s = sin(2*pi / iterations)
c = cos(2*pi / iterations)
dx, dy = radius, 0
glColor4f(*color)
glBegin(GL_TRIANGLE_FAN)
glVertex2f(x, y)
for i in range(iterations+1):
glVertex2f(x+dx, y+dy)
dx, dy = (dx*c - dy*s), (dy*c + dx*s)
glEnd()
def draw(self):
def add_uv_vertex(u, v):
self.add_vertex(*self.get_vertex_normal(u, v))
def add_tl_triangle(u, v):
add_uv_vertex(u - 1, v - 1)
add_uv_vertex(u, v)
add_uv_vertex(u - 1, v)
def add_br_triangle(u, v):
add_uv_vertex(u - 1, v - 1)
add_uv_vertex(u, v - 1)
add_uv_vertex(u, v)
gl.glBegin(gl.GL_TRIANGLES)
for u in range(1, self.num_u):
for v in range(1, self.num_v):
add_br_triangle(u, v)
add_tl_triangle(u, v)
get_gl_error()
gl.glEnd()
def drawChessBoardGl(self):
self.setupGl()
# clears the background with the background color
gl.glClear(gl.GL_COLOR_BUFFER_BIT)
# square color
gl.glColor3f(*self.greenF3)
squareWidth = 0.4
minF = -1.6
maxF = 1.6
for h in np.arange(0.0, 2 * maxF, 2 * squareWidth):
#Draws the chess board 2 lines by 2 lines
for i in np.arange(minF, maxF, 2 * squareWidth):
# draws a square
gl.glBegin(gl.GL_QUADS)
gl.glVertex3f(i + squareWidth, minF + squareWidth + h, 0)
gl.glVertex3f(i, minF + squareWidth + h, 0)
gl.glVertex3f(i, minF + h, 0)
gl.glVertex3f(i + squareWidth, minF + h, 0)
gl.glEnd()
gl.glBegin(gl.GL_QUADS)
gl.glVertex3f(i + 2 * squareWidth, minF + 2 * squareWidth + h,
0)
gl.glVertex3f(i + squareWidth, minF + 2 * squareWidth + h, 0)
gl.glVertex3f(i + squareWidth, minF + squareWidth + h, 0)
gl.glVertex3f(i + 2 * squareWidth, minF + squareWidth + h, 0)
gl.glEnd()
pyglet.graphics.draw(
8, pyglet.gl.GL_LINES,
("v2f", (minF, minF, minF, maxF, maxF, minF, maxF, maxF, minF,
minF, maxF, minF, minF, maxF, maxF, maxF)),
('c3B', (0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0,
255, 0, 0, 255, 0, 0, 255, 0)))