← circus
Simple camera zoom
Smoothly zooming in or out of the scene
Python Code
from svan2d.component.state.circle import CircleState
from svan2d.component.state.square import SquareState
from svan2d.converter.converter_type import ConverterType
from svan2d.core.color import Color
from svan2d.core.logger import configure_logging
from svan2d.core.point2d import Point2D
from svan2d.transition import easing
from svan2d.velement import VElement
from svan2d.vscene import VScene
from svan2d.vscene.vscene_exporter import VSceneExporter
configure_logging(level="INFO")
OUTER_COLOR = Color("#FDBE02")
CENTER_COLOR = Color("#AA0000")
def main():
# Simple zoom-out with animate_camera()
scene = VScene(width=600, height=600, background=Color("#000017")).animate_camera(
scale=(6.0, 1.0), # Start zoomed in, end at normal
easing=easing.in_out,
)
# Create circles in a grid pattern
elements = []
for i in range(-2, 3):
for j in range(-2, 3):
dist = (i**2 + j**2) ** 0.5
t = dist / (2 * 2**0.5)
dist = (i**2 + j**2) ** 0.5
t = dist / (2 * 2**0.5)
s1 = CircleState(
radius=30,
pos=Point2D(i * 80, j * 80),
fill_color=CENTER_COLOR.interpolate(OUTER_COLOR, t),
)
s2 = SquareState(
size=60,
pos=Point2D(i * 80, j * 80),
fill_color=CENTER_COLOR.interpolate(OUTER_COLOR, t),
)
elements.append(VElement().keystates([s1, s2]))
scene = scene.add_elements(elements)
# Export
exporter = VSceneExporter(
scene=scene,
converter=ConverterType.INKSCAPE,
output_dir="output/",
)
exporter.to_mp4(
filename="simple_camera_zoom",
total_frames=60,
framerate=30,
png_width_px=1024,
)
if __name__ == "__main__":
main()