interactive

问题 I implemented my own custom container view controller and I try to make it compatible with iOS 7 view controller transitions. I make my custom container view controller conform to UIViewControllerContextTransitioning and I send self when I call transitionDuration: and animateTransition: . It all works fine as long as I use only animated transitions. Now I want to make it work with interactive transitions, so I call the interaction controller's startInteractiveTransition: instead of the

问题 While looking for a way to make animated interactive plot using matplotlib, I encountered this piece of code on Stack overflow documentation: import numpy as np import matplotlib.pyplot as plt import matplotlib.animation as animation from matplotlib.widgets import Slider TWOPI = 2*np.pi fig, ax = plt.subplots() t = np.arange(0.0, TWOPI, 0.001) initial_amp = .5 s = initial_amp*np.sin(t) l, = plt.plot(t, s, lw=2) ax = plt.axis([0,TWOPI,-1,1]) axamp = plt.axes([0.25, .03, 0.50, 0.02]) # Slider

问题 I have a list of pictures: pictures = {im1,im2,im3,im4,im5,im6} Where im1: im2: im3: im4: im5: im6: I want to assign the pictures to labels (1,2,3,4 etc.) For instance, here pictures 1 to 3 belong to label 1, picture 4 belongs to label 2, picture 5 to label 3, and picture 6 to label 4. -> label = {1,1,1,2,3,4} Since I need to see the images when I label them, I need a method to do that while labeling them. I was thinking of creating an array of images: And then I define the ranges by clicking

问题 I have written a program in Python 2.7 with networkX which draws a tree with black and white nodes. Here is a minimal example: import networkx as nx import matplotlib.pyplot as plt import numpy T = nx.Graph() ### Nodes white, black = [1, 4, 5, 6, 7], [2, 3] allNodes = white+black for node in allNodes: T.add_node(node) ### Edges T.add_edge(1, 2) T.add_edge(1, 3) T.add_edge(2, 4) T.add_edge(2, 5) T.add_edge(3, 6) T.add_edge(3, 7) ### Positions of the nodes pos={} pos[1]=numpy.array([ 0,0]) pos

问题 I'm currently generating 3D graphs in R using the persp -command. To change the viewpoint one has to set the parameters theta and phi . To evaluate (a good viewpoint on) the graph, one has to try lots of combinations for these parameters. I was wondering if one can define an interactive output device that allows to rotate the graph using the mouse. It would be also nice if this device gives the current values for theta and phi . Is there such a device/package? 回答1: See the rgl package: http:/

问题 I was wondering why is there a different rule for blank lines in Python between interactive prompt and when the program is run from shell as an executable. Since blank lines are ignored, I enjoy using them abundantly. However, in the interactive prompt, a blank line is used to terminate a loop. Thus, I keep running into indentation errors when I paste a chunk of code into the interactive prompt as I would have blank lines throughout my loops. Consequently, this makes the interactive debugging

问题 I'm pretty new to Haskell, so I'm looking for a simple-ish way to detect keypresses, rather than using getLine . If anyone knows any libraries, or some trick to doing this, it would be great! And if there is a better place to ask this, please direct me there, I'd appreciate it. 回答1: If you don't want blocking you can use hReady to detect whether a key has been pressed yet. This is useful for games where you want the program to run and pick up a key press whenever it has happened without

问题 Some functions like browser only make sense when used interactively. It is widely regarded that the subset function should only be used interactively. Similarly, sapply isn't good for programmatic use since it doesn't simplify the result for zero length inputs. I'm trying to make an exhaustive list of functions that are only not suitable for programmatic use. The plan is to make a tool for package checking to see if any of these functions are called and give a warning. There are other

问题 I use a couple of software packages (like gitlab) that you install by cloning from their git repo. They typically come with some config.example (under version control), which you copy to your own config file (not under version control or even ignored in .gitignore ) and adapt to your needs. When the upstream package is updated and for example changes the config file options that will obviously only be reflected in config.example . Is there a chain of git commands that i'm missing that can

问题 I wrote the code below in Ipython notebook to generate a sigmoid function controlled by parameters a which defines the position of the sigmoid center, and b which defines its width: %matplotlib inline import numpy as np import matplotlib.pyplot as plt def sigmoid(x,a,b): #sigmoid function with parameters a = center; b = width s= 1/(1+np.exp(-(x-a)/b)) return 100.0*(s-min(s))/(max(s)-min(s)) # normalize sigmoid to 0-100 x = np.linspace(0,10,256) sigm = sigmoid(x, a=5, b=1) fig = plt.figure