Update the book

Author: 38

code/2_11_timeseries.rs

@@ -1,35 +1,33 @@
+use chrono::{TimeZone, Utc};
 use plotters::prelude::*;
-use chrono::{Utc, TimeZone};
 
 fn main() {
-	let root_area = BitMapBackend::new("images/2.11.png", (600, 400)).into_drawing_area();
-	root_area.fill(&WHITE).unwrap();
+    let root_area = BitMapBackend::new("images/2.11.png", (600, 400)).into_drawing_area();
+    root_area.fill(&WHITE).unwrap();
 
-	let start_date = Utc.ymd(2019, 10, 1);
-	let end_date = Utc.ymd(2019, 10, 18);
+    let start_date = Utc.ymd(2019, 10, 1);
+    let end_date = Utc.ymd(2019, 10, 18);
 
     let mut ctx = ChartBuilder::on(&root_area)
         .set_label_area_size(LabelAreaPosition::Left, 40)
         .set_label_area_size(LabelAreaPosition::Bottom, 40)
         .caption("MSFT daily close price", ("Arial", 40))
         .build_ranged(start_date..end_date, 130.0..145.0)
         .unwrap();
-    
-    ctx.configure_mesh().draw().unwrap();
 
-    ctx.draw_series(
-        LineSeries::new(
-            (0..).zip(DATA.iter()).map(|(idx, price)| {
-                let day = (idx / 5) * 7 + idx % 5 + 1;
-                let date = Utc.ymd(2019,10, day);
-                (date, *price)
-            }),
-            &BLUE,
-        )
-    ).unwrap();
+    ctx.configure_mesh().draw().unwrap();
 
+    ctx.draw_series(LineSeries::new(
+        (0..).zip(DATA.iter()).map(|(idx, price)| {
+            let day = (idx / 5) * 7 + idx % 5 + 1;
+            let date = Utc.ymd(2019, 10, day);
+            (date, *price)
+        }),
+        &BLUE,
+    ))
+    .unwrap();
 }
 const DATA: [f64; 14] = [
     137.24, 136.37, 138.43, 137.41, 139.69, 140.41, 141.58, 139.55, 139.68, 139.10, 138.24, 135.67,
-    137.12, 138.12
+    137.12, 138.12,
 ];

src/SUMMARY.md

@@ -10,6 +10,7 @@
 	- [Animation and realtime rendering](./basic/animate.md)
 - [Tweaking the figure](./tweak/overview.md)
 	- [Layout tweak](./tweak/layout.md) 
+	- [Font, color and styles](./tweak/font_color_style.md)
 	- [Axis, mesh and label tweaks](./tweak/aixs_mesh_labels.md) 
 	- [Relative sizing](./tweak/relative_sizing.md)
 - [Drawing APIs](./drawing/overview.md)
@@ -18,11 +19,13 @@
 		- [Coordinate decorators](./drawing/coord_decorator.md)
 	- [Elements](./drawing/elements.md)
 	- [Drawing backends](./drawing/backends.md)
-- [Webassembly support](./wasm/overview.md)
-	- [Canvas Drawing Backend](./wasm/canvas_backend.md)
+- [Targeting different backends](./backends/overview.md)
+	- [HTML5 Canvas](./backends/canvas_backend.md)
+	- [Framebuffer](./backends/fb.md)
 - [Performance](./perf/overview.md)
 	- [Parallel Rendering with Bitmap Blit](./perf/parallel_blit.md)
 	- [Inplace Parallel Rendering](./perf/inplace_rendering.md)
+	- [Incremental Rendering](./perf/incremental_rendering.md)
 - [Extend Plotters](./extend/overview.md)
 	- [Adding coordinate type](./extend/coord.md)
 	- [Adding series types](./extend/series.md)

src/backends/canvas_backend.md

@@ -0,0 +1 @@
+# HTML5 Canvas

src/backends/fb.md

@@ -0,0 +1 @@
+# Framebuffer

src/backends/overview.md

@@ -0,0 +1 @@
+# Targeting different backends

src/basic/basic_data_plotting.md

@@ -238,9 +238,17 @@ Result image:
 
 ![2.11.png](../../images/2.11.png)
 
-## Error bar
-## Heatmap
 ## Customized series
+
+Plotters allows you draw abitrary types of series, even the one isn't built into the Plotters crate. 
+Plotters uses a really simple abstraction for a data series: An iterator of drawable elements. 
+Thus if you can make your own series an iterator of drawable element, it's a valid data series and can be
+draw on a figure.
+
+
+
+
+
 ## Mutiple Data Series
 
 By calling `draw_series` multiple time, Plotters is able to produce the multiple series plot. 

src/intro/introduction.md

@@ -18,6 +18,13 @@ To try it yourself, please clone the book repo and use the following command to
 cargo run --bin <example-name>
 ```
 
+### FAQ List
+
+1. Why the example just exits without any figure poping up?
+
+You should be table to find the output under `images` directory under the user's guide repository. 
+The filename for the output is the defined in the example code. 
+
 ## API Docs
 
 This book is a developer's guide for Plotters. You may also want the API reference, please go to [docs.rs](https://docs.rs/plotters).

src/perf/incremental_rendering.md

@@ -0,0 +1 @@
+# Incremental Rendering

src/tweak/font_color_style.md

@@ -0,0 +1 @@
+# Font, color and styles