animation

问题 I am studying Animation in Core Animation Programming Guide and I get stuck on comprehending pause and resume animation on a layer. The document tells me how to pause and resume animation without clear explanation. I think the key is to understand what is timeOffset and beginTime method of CAlayer . These code is pause and resume animation. In resumeLayer method, layer.beginTime = timeSincePause; this line really make me confused. -(void)pauseLayer:(CALayer*)layer { CFTimeInterval pausedTime

问题 I'm trying to blit an image to the screen when the event K_SPACE is triggered. However, when I press space nothing happens. I've tried moving where the screen is updated or flipped, but i've hit a brick wall. Here is my code: def Play(): background = pygame.image.load(bifPlay).convert() char = pygame.image.load(mif).convert_alpha() bullet = pygame.image.load(bulletLoad).convert() zombie = pygame.image.load(zombieLoad).convert_alpha() #converting images needed so pygame can use them x,y = 115

问题 I'm trying to blit an image to the screen when the event K_SPACE is triggered. However, when I press space nothing happens. I've tried moving where the screen is updated or flipped, but i've hit a brick wall. Here is my code: def Play(): background = pygame.image.load(bifPlay).convert() char = pygame.image.load(mif).convert_alpha() bullet = pygame.image.load(bulletLoad).convert() zombie = pygame.image.load(zombieLoad).convert_alpha() #converting images needed so pygame can use them x,y = 115

问题 I'm trying to blit an image to the screen when the event K_SPACE is triggered. However, when I press space nothing happens. I've tried moving where the screen is updated or flipped, but i've hit a brick wall. Here is my code: def Play(): background = pygame.image.load(bifPlay).convert() char = pygame.image.load(mif).convert_alpha() bullet = pygame.image.load(bulletLoad).convert() zombie = pygame.image.load(zombieLoad).convert_alpha() #converting images needed so pygame can use them x,y = 115

问题 I am trying to make an animation using pyglet. So first I tried a simple animation, moving the image in a strait line. Idealy I would like it to bounce around from left to right. Here is my code: import pyglet def center_image(image): """Sets an image's anchor point to its center""" image.anchor_x = image.width // 2 image.anchor_y = image.height // 2 # Make window. window = pyglet.window.Window(width=640, height=480) # Load image. pyglet.resource.path = ['images'] pyglet.resource.reindex()

问题 I want to make a slideshow where the pictures transition through fade in fade out opacity. it just glooms on the screen and switches to the next picture. I got it to work but added the other brower webkits and it stopped working. Can't seem to find my mistake.. The slideshow still works. This is the code: /* Fading animation in css */ .fade { -webkit-animation-name: fade 5s; animation-name: fade 5s; -moz-animation: fade 5s; -o-animation: fade 5s; } @-webkit-keyframes fade { 0% {opacity: 0.2}

问题 Hello everyone i am trying to animate some data using Mayavi mlab.points3d and having some issues. Here is my code: import numpy as np from mayavi import mlab ##Some lists to animate px=np.arange(0,10000,1) py=np.arange(0,50000,5) ##Animation function def run(px,py): cc = mlab.gcf().scene.camera cc.position[-1] = 10 T_max = len(px) delayer=40 @mlab.animate(delay=delayer) def anim_loc(): f = mlab.gcf() while True: for i in np.arange(0,T_max,1): s=0.5 mlab.points3d(px[i],py[i],s,color=(0,0,0)

问题 Hello everyone i am trying to animate some data using Mayavi mlab.points3d and having some issues. Here is my code: import numpy as np from mayavi import mlab ##Some lists to animate px=np.arange(0,10000,1) py=np.arange(0,50000,5) ##Animation function def run(px,py): cc = mlab.gcf().scene.camera cc.position[-1] = 10 T_max = len(px) delayer=40 @mlab.animate(delay=delayer) def anim_loc(): f = mlab.gcf() while True: for i in np.arange(0,T_max,1): s=0.5 mlab.points3d(px[i],py[i],s,color=(0,0,0)

问题 I'm using react transition group to handle animated CSSTransitions when a component is rendered. I want a simple fade in of a component. The transition out seems to work properly, but the in transition does not. If I put a debugger on the onEnter property, I can see that the transition actually "should" work as expected. The enter-active state is triggered, the element starts at 0.1 opacity, and if I resume the debugger, the transition takes place. But without the debugger, when the component

问题 I am looking to create a UI that displays an animated popup while another task is being carried out. That will exit upon completion. I am using PYSimpleGUI and am using the example listed here to base my work off. I can get a single frame of the animation to display once I start the code and exit upon completion of the task but can't get it to play the entire gif. Code: import queue import threading import time import PySimpleGUI as sg # ############################# User callable CPU