1 00:00:00,000 --> 00:00:08,719 Alright, let's sum it up now. So we were able to generate graphs and you saw that 2 00:00:08,719 --> 00:00:15,179 until now we generated like single graphs so for instance here you'll see 3 00:00:15,179 --> 00:00:22,289 a line graph. Now if you want to combine multiple glyphs in one plot, that 4 00:00:22,289 --> 00:00:30,359 would be very simple. So let's say you've got two plots. You add a scatter plot 5 00:00:30,359 --> 00:00:36,840 there so you'll need to add a circle glyph, so just below this line glyph, or above 6 00:00:36,840 --> 00:00:40,680 that, it doesn't matter. So circles and with these coordinates or 7 00:00:40,680 --> 00:00:49,070 we can change them so let's say place double this X axis. I times 2 8 00:00:49,070 --> 00:00:59,219 for I in this, a list which closes here, so and then this should be the size. 9 00:00:59,219 --> 00:01:11,030 Size let's say eight and olive, so this is how you get multiple glyphs in one plot. 10 00:01:11,030 --> 00:01:15,869 That was very easy and so I believe I gave you a good introduction to the 11 00:01:15,869 --> 00:01:22,140 Bokeh library and I believe you see its potential so it's great to actually 12 00:01:22,140 --> 00:01:26,790 use Bokeh for generating visualizations. Now if you want to go 13 00:01:26,790 --> 00:01:32,150 deeper into Bokeh, so you may want to have to plot different types of graphs, 14 00:01:32,150 --> 00:01:37,619 I'd point you first to this resource, so this is the documentation, Bokeh 15 00:01:37,619 --> 00:01:42,360 documentation and this is about plotting with glyphs, so what you have here is 16 00:01:42,360 --> 00:01:48,540 various examples, there, we used this one actually and other ones as well, lines, 17 00:01:48,540 --> 00:01:54,720 and you can also close patches, so basically you pass the coordinates of 18 00:01:54,720 --> 00:02:01,979 each of the points of the polygon here and Bokeh will draw the polygon there. 19 00:02:01,979 --> 00:02:09,869 All these are the basic things, and here I'd like to stop a little bit, so this is 20 00:02:09,869 --> 00:02:15,780 called a quadrant plot actually. This one here, so instead of passing a circle 21 00:02:15,780 --> 00:02:23,760 or line you'll pass a quad and what this consists of is the top, so the upper 22 00:02:23,760 --> 00:02:29,310 corner of your quadrant so for instance this first quadrant here has a 23 00:02:29,310 --> 00:02:35,819 top border of 2 and the bottom of 1. So it's bordered with 1 and 2 and 24 00:02:35,819 --> 00:02:44,459 then left would be 1, and right 1.2. So 1 left and 1.2 right. 25 00:02:44,459 --> 00:02:50,670 And then you have the next quadrant which is this one here with its 26 00:02:50,670 --> 00:02:57,060 coordinate as well and so one. And here's the colors, so you can use CSS color 27 00:02:57,060 --> 00:03:02,910 codes if you want besides the, besides using the color strings like red, 28 00:03:02,910 --> 00:03:08,250 orange, and yellow and so on. So the reason I stopped at this plot is that we 29 00:03:08,250 --> 00:03:13,130 will be using this plot to actually visualize the times for our video 30 00:03:13,130 --> 00:03:18,810 program, so the times when an object enters the video frame and when the 31 00:03:18,810 --> 00:03:22,470 object exits the video frame, so it would be great if you start thinking about 32 00:03:22,470 --> 00:03:28,320 this now how you're going to use, make use of the CSV file that we generated in 33 00:03:28,320 --> 00:03:34,820 the video program earlier and plot that file in in a similar graph like this one. 34 00:03:34,820 --> 00:03:39,870 So there are some tricks there and I don't expect you to fully solve it but 35 00:03:39,870 --> 00:03:46,590 it's good to think about that. And you also have this gallery here so the 36 00:03:46,590 --> 00:03:52,410 Bokeh gallery. Here you have some beautiful plots, so you've got the 37 00:03:52,410 --> 00:04:00,600 histogram. If you click one of these so for instance how to make this map, so you 38 00:04:00,600 --> 00:04:05,040 can simply copy this code and paste it in your script and run it and you'll get 39 00:04:05,040 --> 00:04:10,290 the same map. That's what I wanted to teach you about Bokeh and we'll be 40 00:04:10,290 --> 00:04:14,430 using it later as I said for visualizing these times 41 00:04:14,430 --> 00:04:20,000 when an object is moving in our video frame in front of our webcam, so I'll 42 00:04:20,400 --> 00:04:21,000 talk to you later.