# Plotting: Composite plotter with shared axes¶

Contents

Classes used:

Models:

Plotting:

Composite plotter can be used to compare larger sets of data, and sometimes you want to share *x* or *y* axes or even both. Furthermore, you may want to share *x* axes column-wise and *y* axes row-wise. All this is possible, as shown below in a rather lengthly recipe. Just use the part you are interested in for your own purposes.

## Recipe¶

Shown below is the entire recipe. As this is quite lengthly, separate parts will be detailed below in the “Results” section.

```
1format:
2 type: ASpecD recipe
3 version: '0.2'
4
5settings:
6 autosave_plots: False
7
8tasks:
9 - kind: model
10 type: Zeros
11 properties:
12 parameters:
13 shape: 1001
14 range: [-10, 10]
15 result: dummy-1
16
17 - kind: model
18 type: Zeros
19 properties:
20 parameters:
21 shape: 1001
22 range: [-8, 8]
23 result: dummy-2
24
25 - kind: model
26 type: NormalisedGaussian
27 from_dataset: dummy-1
28 result: gaussian-1
29 comment: >
30 Create normalised Gaussian profile with default parameters
31
32 - kind: model
33 type: NormalisedGaussian
34 from_dataset: dummy-1
35 properties:
36 parameters:
37 width: 1.5
38 result: gaussian-2
39 comment: >
40 Create normalised Gaussian profile with width=1.5
41
42 - kind: model
43 type: NormalisedGaussian
44 from_dataset: dummy-2
45 properties:
46 parameters:
47 width: 2.0
48 result: gaussian-3
49 comment: >
50 Create normalised Gaussian profile with width=2.0
51
52 - kind: model
53 type: NormalisedGaussian
54 from_dataset: dummy-2
55 properties:
56 parameters:
57 width: 0.5
58 result: gaussian-4
59 comment: >
60 Create normalised Gaussian profile with width=0.5
61
62 - kind: singleplot
63 type: SinglePlotter1D
64 properties:
65 properties:
66 axes:
67 xlabel: "$position$ / a.u."
68 parameters:
69 tight_layout: True
70 apply_to:
71 - gaussian-1
72 - gaussian-2
73 - gaussian-3
74 - gaussian-4
75 result:
76 - plot-1
77 - plot-2
78 - plot-3
79 - plot-4
80 comment: >
81 Plotters used in CompositePlotter below
82
83 - kind: compositeplot
84 type: CompositePlotter
85 properties:
86 properties:
87 grid_spec:
88 wspace: 0
89 parameters:
90 tight_layout: True
91 plotter:
92 - plot-1
93 - plot-2
94 - plot-3
95 - plot-4
96 grid_dimensions: [2, 2]
97 subplot_locations:
98 - [0, 0, 1, 1]
99 - [0, 1, 1, 1]
100 - [1, 0, 1, 1]
101 - [1, 1, 1, 1]
102 filename: plotting-compositeplotter-share-y-axes.pdf
103 sharey: True
104 comment: >
105 Composite plotter with shared y axes
106
107 - kind: compositeplot
108 type: CompositePlotter
109 properties:
110 properties:
111 grid_spec:
112 wspace: 0
113 parameters:
114 tight_layout: True
115 plotter:
116 - plot-2
117 - plot-1
118 - plot-4
119 - plot-3
120 grid_dimensions: [2, 2]
121 subplot_locations:
122 - [0, 1, 1, 1]
123 - [0, 0, 1, 1]
124 - [1, 1, 1, 1]
125 - [1, 0, 1, 1]
126 filename: plotting-compositeplotter-share-y-axes-wo-inner-ticks.pdf
127 sharey: True
128 comment: >
129 Composite plotter with shared y axes and no inner ticks
130
131 - kind: compositeplot
132 type: CompositePlotter
133 properties:
134 properties:
135 grid_spec:
136 hspace: 0
137 parameters:
138 tight_layout: True
139 plotter:
140 - plot-1
141 - plot-2
142 - plot-3
143 - plot-4
144 grid_dimensions: [2, 2]
145 subplot_locations:
146 - [0, 0, 1, 1]
147 - [0, 1, 1, 1]
148 - [1, 0, 1, 1]
149 - [1, 1, 1, 1]
150 filename: plotting-compositeplotter-share-x-axes.pdf
151 sharex: True
152 comment: >
153 Composite plotter with shared x axes
154
155 - kind: compositeplot
156 type: CompositePlotter
157 properties:
158 properties:
159 grid_spec:
160 hspace: 0
161 parameters:
162 tight_layout: True
163 plotter:
164 - plot-1
165 - plot-3
166 - plot-2
167 - plot-4
168 grid_dimensions: [2, 2]
169 subplot_locations:
170 - [0, 0, 1, 1]
171 - [0, 1, 1, 1]
172 - [1, 0, 1, 1]
173 - [1, 1, 1, 1]
174 filename: plotting-compositeplotter-share-x-axes-column-wise.pdf
175 sharex: column-wise
176 comment: >
177 Composite plotter with column-wise shared x axes
178
179 - kind: compositeplot
180 type: CompositePlotter
181 properties:
182 properties:
183 grid_spec:
184 wspace: 0
185 parameters:
186 tight_layout: True
187 plotter:
188 - plot-1
189 - plot-3
190 - plot-2
191 - plot-4
192 grid_dimensions: [2, 2]
193 subplot_locations:
194 - [0, 0, 1, 1]
195 - [0, 1, 1, 1]
196 - [1, 0, 1, 1]
197 - [1, 1, 1, 1]
198 filename: plotting-compositeplotter-share-y-axes-row-wise.pdf
199 sharey: row-wise
200 comment: >
201 Composite plotter with row-wise shared y axes
202
203 - kind: compositeplot
204 type: CompositePlotter
205 properties:
206 properties:
207 grid_spec:
208 wspace: 0
209 hspace: 0
210 axes:
211 ylim: [-0.05, 0.85]
212 parameters:
213 tight_layout: True
214 plotter:
215 - plot-1
216 - plot-2
217 - plot-3
218 - plot-4
219 grid_dimensions: [2, 2]
220 subplot_locations:
221 - [0, 0, 1, 1]
222 - [0, 1, 1, 1]
223 - [1, 0, 1, 1]
224 - [1, 1, 1, 1]
225 filename: plotting-compositeplotter-share-x-y-axes.pdf
226 sharex: True
227 sharey: True
228 comment: >
229 Composite plotter with shared x and y axes
```

## Comments¶

As usual, a series of model datasets are created at the beginning, to have something to show. These are all normalised Gaussians with different line widths, resulting in different amplitudes.

For demonstration purposes, two different

*x*ranges have been used for the Gaussians.For simplicity, all datasets are plotted using the same plotter. Hence, to address the individual plotters in the

`CompositePlotter`

, you need to provide labels using the`result`

key.The sequence of defining subplot locations and plotter for the

`CompositePlotter`

does matter, as the first defined axes (of a row/column) serves as reference for sharing axes with the other subplots.When sharing axes, only the outer labels are shown. For sharing

*x*axes and plotting from top to bottom, this usually means that you do*not*see the*x*ticks for any but the lowest subplots. For sharing*y*axes and plotting left to right, as usual, you will see the*y*ticks of all axes, as they are not hidden by the other axes.The space between the subplots can be set using the keys

`wspace`

and`hspace`

for the total amount of width or height for spacing between subplots. Set either to zero for axes directly next to each other.

## Results¶

Examples for the figures created in the recipe are given below. While in the recipe, the output format has been set to PDF, for rendering them here they have been converted to PNG.

Note

The command line magic used to convert the PDF images to PNG images was:

```
for k in plotting-compositeplotter-share*pdf; do echo ${k%.*}; convert -density 180 $k ${k%.*}.png; done
```

As this is a rather lengthly recipe demonstrating many different scenarios, the individual cases are shown separately, each with the corresponding section of the recipe.

### All *y* axes shared¶

As a first example, all *y* axes are shared. With no further adjusting of the *y* axes, this may lead to unwanted effects, as shown in the corresponding figure. Furthermore, the *y* ticks of the right subplots are shown, due to the sequence of subplots from left to right. The right panels are plotted after the left ones, and hence their *y* ticks not hidden below the left panels. For shared *x* axes and plotting from top to bottom, all *x* ticks except of the lowest are usually hidden when the spacing between the subplots is set to zero.

```
83 - kind: compositeplot
84 type: CompositePlotter
85 properties:
86 properties:
87 grid_spec:
88 wspace: 0
89 parameters:
90 tight_layout: True
91 plotter:
92 - plot-1
93 - plot-2
94 - plot-3
95 - plot-4
96 grid_dimensions: [2, 2]
97 subplot_locations:
98 - [0, 0, 1, 1]
99 - [0, 1, 1, 1]
100 - [1, 0, 1, 1]
101 - [1, 1, 1, 1]
102 filename: plotting-compositeplotter-share-y-axes.pdf
103 sharey: True
104 comment: >
105 Composite plotter with shared y axes
```

### All *y* axes shared, no inner ticks¶

As mentioned above, with a typical plot sequence from left to right and no horizontal spacing between the panels, the ticks of the right panels are shown. To have these ticks hidden below the left panels, define the subplot locations differently, starting with the right column. Note, however, that this way another axes takes precedence as reference for the shared axes.

```
107 - kind: compositeplot
108 type: CompositePlotter
109 properties:
110 properties:
111 grid_spec:
112 wspace: 0
113 parameters:
114 tight_layout: True
115 plotter:
116 - plot-2
117 - plot-1
118 - plot-4
119 - plot-3
120 grid_dimensions: [2, 2]
121 subplot_locations:
122 - [0, 1, 1, 1]
123 - [0, 0, 1, 1]
124 - [1, 1, 1, 1]
125 - [1, 0, 1, 1]
126 filename: plotting-compositeplotter-share-y-axes-wo-inner-ticks.pdf
127 sharey: True
128 comment: >
129 Composite plotter with shared y axes and no inner ticks
```

### All *x* axes shared¶

Analogously to sharing *y* axes, you can share all *x* axes. Typically, you want to set the vertical distance to zero, hence the height of the figure reserved for spacing between panels: `hspace`

.

```
131 - kind: compositeplot
132 type: CompositePlotter
133 properties:
134 properties:
135 grid_spec:
136 hspace: 0
137 parameters:
138 tight_layout: True
139 plotter:
140 - plot-1
141 - plot-2
142 - plot-3
143 - plot-4
144 grid_dimensions: [2, 2]
145 subplot_locations:
146 - [0, 0, 1, 1]
147 - [0, 1, 1, 1]
148 - [1, 0, 1, 1]
149 - [1, 1, 1, 1]
150 filename: plotting-compositeplotter-share-x-axes.pdf
151 sharex: True
152 comment: >
153 Composite plotter with shared x axes
```

### Column-wise shared *x* axes¶

Depending on the use-case, you may want to share *x* axes not for all panels of a figure in a composite plot, but only column-wise. This can be done by setting the `sharex`

key to one of `["col", "columns", "column-wise"]`

.

```
155 - kind: compositeplot
156 type: CompositePlotter
157 properties:
158 properties:
159 grid_spec:
160 hspace: 0
161 parameters:
162 tight_layout: True
163 plotter:
164 - plot-1
165 - plot-3
166 - plot-2
167 - plot-4
168 grid_dimensions: [2, 2]
169 subplot_locations:
170 - [0, 0, 1, 1]
171 - [0, 1, 1, 1]
172 - [1, 0, 1, 1]
173 - [1, 1, 1, 1]
174 filename: plotting-compositeplotter-share-x-axes-column-wise.pdf
175 sharex: column-wise
176 comment: >
177 Composite plotter with column-wise shared x axes
```

### Row-wise shared *y* axes¶

Similarly to sharing *x* axes column-wise, you can share *y* axes row-wise instead of for all panels in a composite plot. This can be done by setting the `sharey`

key to one of `["row", "rows", "row-wise"]`

.

```
179 - kind: compositeplot
180 type: CompositePlotter
181 properties:
182 properties:
183 grid_spec:
184 wspace: 0
185 parameters:
186 tight_layout: True
187 plotter:
188 - plot-1
189 - plot-3
190 - plot-2
191 - plot-4
192 grid_dimensions: [2, 2]
193 subplot_locations:
194 - [0, 0, 1, 1]
195 - [0, 1, 1, 1]
196 - [1, 0, 1, 1]
197 - [1, 1, 1, 1]
198 filename: plotting-compositeplotter-share-y-axes-row-wise.pdf
199 sharey: row-wise
200 comment: >
201 Composite plotter with row-wise shared y axes
```

### Share *x* and *y* axes¶

Finally, an example for sharing both, *x* and *y* axes. In this case, you may want to set the spacing in both directions to zero. Furthermore, to *not* cut any line in this particular case, the `ylim`

axes properties of the `CompositePlotter`

are set, and these settings on this level always apply to *all* panels of the composite plot.

```
203 - kind: compositeplot
204 type: CompositePlotter
205 properties:
206 properties:
207 grid_spec:
208 wspace: 0
209 hspace: 0
210 axes:
211 ylim: [-0.05, 0.85]
212 parameters:
213 tight_layout: True
214 plotter:
215 - plot-1
216 - plot-2
217 - plot-3
218 - plot-4
219 grid_dimensions: [2, 2]
220 subplot_locations:
221 - [0, 0, 1, 1]
222 - [0, 1, 1, 1]
223 - [1, 0, 1, 1]
224 - [1, 1, 1, 1]
225 filename: plotting-compositeplotter-share-x-y-axes.pdf
226 sharex: True
227 sharey: True
228 comment: >
229 Composite plotter with shared x and y axes
```