mirror of
https://github.com/apache/zeppelin
synced 2026-05-24 09:38:26 +00:00
641a641c31
### What is this PR for?
Currently `display_formula.png` (added by #1606) is broken in here: http://zeppelin.apache.org/docs/0.7.0-SNAPSHOT/displaysystem/basicdisplaysystem.html#mathematical-expressions
Fixed it by using relative path for the image. But have no idea why the other image files are not broken in that page.
### What type of PR is it?
Documentation | Hot Fix
### Todos
* [ ] - Task
### What is the Jira issue?
N/A
### How should this be tested?
It can't be reproduced using docs dev mode. Needs to be tested with below steps.
```
1) build gh-pages (website) branch
JEKYLL_ENV=production bundle exec jekyll build
cp -r _site/ /tmp/zeppelin_website/
mkdir -p /tmp/zeppelin_website/docs/0.7.0-SNAPSHOT
2) build this patch (docs) and copy it under docs/0.7.0-SNAPSHOT of website
cd docs
bundle exec jekyll build --safe
cp -r _site/ /tmp/zeppelin_website/0.7.0-SNAPSHOT/
3) start httpserver and browse http://localhost:8000/docs/0.7.0-SNAPSHOT/
cd /tmp/zeppelin_website
python -m SimpleHTTPServer
```
### Screenshots (if appropriate)
**Before**
- In the official website
<img width="938" alt="screen shot 2016-12-13 at 7 07 27 pm" src="https://cloud.githubusercontent.com/assets/10060731/21136061/72c230b6-c167-11e6-9805-12d6f11f3270.png">
```
GET http://zeppelin.apache.org/assets/themes/zeppelin/img/screenshots/display_formula.png 404 (Not Found)
```
**After**
- test locally using same with production path
<img width="877" alt="screen shot 2016-12-13 at 7 09 42 pm" src="https://cloud.githubusercontent.com/assets/10060731/21136136/bbff660e-c167-11e6-9ed3-384e609886fe.png">
### Questions:
* Does the licenses files need update?
* Is there breaking changes for older versions?
* Does this needs documentation?
Author: AhyoungRyu <fbdkdud93@hanmail.net>
Closes #1752 from AhyoungRyu/fix-img-path and squashes the following commits:
4be330b [AhyoungRyu] Fix broken display_formula.png by using relative path
63 lines
2.3 KiB
Markdown
63 lines
2.3 KiB
Markdown
---
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layout: page
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title: "Basic Display System in Apache Zeppelin"
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description: "There are 3 basic display systems in Apache Zeppelin. By default, Zeppelin prints interpreter responce as a plain text using text display system. With %html directive, Zeppelin treats your output as HTML. You can also simply use %table display system to leverage Zeppelin's built in visualization."
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group: display
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---
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<!--
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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{% include JB/setup %}
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# Basic Display System in Apache Zeppelin
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<div id="toc"></div>
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## Text
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By default, Apache Zeppelin prints interpreter response as a plain text using `text` display system.
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<img src="../assets/themes/zeppelin/img/screenshots/display_text.png" />
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You can explicitly say you're using `text` display system.
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<img src="../assets/themes/zeppelin/img/screenshots/display_text1.png" />
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## Html
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With `%html` directive, Zeppelin treats your output as HTML
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<img src="../assets/themes/zeppelin/img/screenshots/display_html.png" />
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### Mathematical expressions
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HTML display system automatically formats mathematical expression using [MathJax](https://www.mathjax.org/). You can use
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`\\( INLINE EXPRESSION \\)` and `$$ EXPRESSION $$` to format. For example
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<img src="../assets/themes/zeppelin/img/screenshots/display_formula.png" />
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## Table
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If you have data that row separated by `\n` (newline) and column separated by `\t` (tab) with first row as header row, for example
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<img src="../assets/themes/zeppelin/img/screenshots/display_table.png" />
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You can simply use `%table` display system to leverage Zeppelin's built in visualization.
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<img src="../assets/themes/zeppelin/img/screenshots/display_table1.png" />
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If table contents start with `%html`, it is interpreted as an HTML.
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<img src="../assets/themes/zeppelin/img/screenshots/display_table_html.png" />
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> **Note :** Display system is backend independent.
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