def get_animation_frame(image_format, physical_size, scale, newick,
eigenvector_index, yaw, pitch):
"""
This function is about drawing the tree.
@param image_format: the image extension
@param physical_size: the width and height of the image in pixels
@param scale: a scaling factor
@return: the animation frame as an image as a string
"""
# before we begin drawing we need to create the cairo surface and context
cairo_helper = CairoUtil.CairoHelper(image_format)
surface = cairo_helper.create_surface(physical_size[0], physical_size[1])
ctx = cairo.Context(surface)
# draw a white background
ctx.save()
ctx.set_source_rgb(1, 1, 1)
ctx.paint()
ctx.restore()
# define some helper variables
x0 = physical_size[0] / 2.0
y0 = physical_size[1] / 2.0
# translate to the center of the frame
ctx.translate(x0, y0)
ctx.scale(1, -1)
# draw the info
TreeProjection.draw_cairo_frame(ctx, scale, newick, eigenvector_index, yaw,
pitch)
# create the image
return cairo_helper.get_image_string()
def get_animation_frame(
image_format, physical_size, scale,
newick, eigenvector_index, yaw, pitch):
"""
This function is about drawing the tree.
@param image_format: the image extension
@param physical_size: the width and height of the image in pixels
@param scale: a scaling factor
@return: the animation frame as an image as a string
"""
# before we begin drawing we need to create the cairo surface and context
cairo_helper = CairoUtil.CairoHelper(image_format)
surface = cairo_helper.create_surface(physical_size[0], physical_size[1])
ctx = cairo.Context(surface)
# draw a white background
ctx.save()
ctx.set_source_rgb(1, 1, 1)
ctx.paint()
ctx.restore()
# define some helper variables
x0 = physical_size[0] / 2.0
y0 = physical_size[1] / 2.0
# translate to the center of the frame
ctx.translate(x0, y0)
ctx.scale(1, -1)
# draw the info
TreeProjection.draw_cairo_frame(
ctx, scale, newick, eigenvector_index, yaw, pitch)
# create the image
return cairo_helper.get_image_string()
