Difference between revisions of "User:Hawk"

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[[The API relation with Highcharts]]
 
[[The API relation with Highcharts]]
  
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= What is the maximal rows and columns ZSS supports?=
 
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ZSS renders cells on demand instead of rendering all cells at once in a browser, but it loads a file's whole content into the memory. So the bigger memory your server has, the more rows and columns ZSS can load. But the max column index is 16384 and the max row index is 1048576.
 
  
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Even if you have sufficient memory, loading time could be an issue. Because loading time grows linearly with cell number. Under our test machine, loading 1 million cells with texts takes 65 seconds, loading 2 million cells takes 139 seconds and loading 4 million cells takes 315 seconds. As the cell number grows, the time could be too long to be acceptable by users. You can measure the loading time on your machine first.
 
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https://potix.freshdesk.com/helpdesk/tickets/3331
 
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check org.zkoss.poi.ss.SpreadsheetVersion for max row / column index
 
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Revision as of 03:17, 18 November 2016

About Me

My Blog

Documentation

Under Editing

The API relation with Highcharts



Under Review

Ready for Publish

Suspend

Already published

  1. Small_Talks/2011/December/MVVM_in_ZK6:in_Contrast_to_MVC
  2. Small Talks/2012/January/Ajax GSP with ZK
  3. Small Talks/2012/January/Enrich Grails Server Pages (GSPs) with ZK
  4. Small_Talks/2012/January/MVVM_Extension:_Access_UI_Components_Inside_ViewModel
  5. Small_Talks/2012/February/MVVM_in_ZK6:_Form_Binding
  6. Small_Talks/2012/February/MVVM_in_ZK6:_Work_with_Spring
  7. ZK Developer's Reference/MVVM (whole chapter)
  8. Small Talks/2012/April/The Dawn of ZK Application Test Suite:Mimic Library
  9. Small Talks/2012/April/Shining ZATS Mimic
  10. ZATS Essentials
  11. ZK Getting Started/Learn ZK in 10 Minutes
  12. ZK Getting Started/Get ZK Up and Running with MVC
  13. ZK Getting Started/Get ZK Up and Running with MVVM
  14. Small Talks/2012/October/Binding with Collection and Selection
  15. Small_Talks/2012/November/How_to_Apply_Responsive_Design
  16. ZK Developer's Reference/Integration/Middleware Layer/Spring
  17. ZK Developer's Reference/Integration/Middleware Layer/CDI
  18. ZK Developer's Reference/Integration/Persistence Layer/Hibernate
  19. ZK Developer's Reference/Integration/Persistence Layer/JPA
  20. Small_Talks/2013/January/Building_User_Interface_Programmatically_with_Richlet
  21. ZK Developer's Reference/Integration/Security/Spring Security
  22. ZK Essentials
  23. Small_Talks/2013/April/New_Features_of_ZK_Studio_2.0.0
  24. ZK_Studio_Essentials
  25. Small_Talks/2013/April/New_Features_of_ZATS_Mimic_1.1.0
  26. Small_Talks/2013/June/ZK Binding Tracker - A Chrome Extension
  27. ZK_Spreadsheet_Essentials (since 3.0.0)
  28. http://books.zkoss.org/wiki/ZK_Getting_Started/Create_a_Project_with_Eclipse
  29. Small_Talks/2015/March/Testing_ZK-based_Application_with_QF_Test

Technical Writing

My Practice of Writing Documents

Preparation :

  1. list assumptions for readers. To know which knowledge base which you build on and to decide which content the document should have.
  2. write outline first.
    to be reviewed and discuss in bird's eye view
    check order of topic should have logical dependency
  3. Pre-write quickly first.
  4. need a technical proofreader to check technical concept
  5. need an editor to check grammar and style.
  6. Arrange topics with logic dependent orders, but leave some clues for those readers who skim a document
    1. Title
    2. Bold text
    3. Pictures
    4. Code highlight

Writing:

  1. Topic sentence first, then supporting sentences
  2. Describe the purpose or context at the beginning.
  3. To start from a basic, simple concept or fewer concepts.
  4. 1 paragraph presents 1 idea.
  5. overall concept first, an example, then technical detail
  6. keep consistent style in code or describing way in multiple related articles
  7. keep consistent wording or terminology.
  8. Summary at the end. (for small talk)
  9. Choose Active, Precise Verbs
  10. Check header, footer, TOC, subsections, references
  11. Picture is better than words.
    1. Picture should be elegant.
    2. Picture should present just exactly enough information.
    3. Set align to center.
    4. Shrink size if a picture's width is wider than page width.
  12. Code example:
    1. Re-using same application as an example. It can reduce user's burden to realize your article.
    2. Focus on a general case not a specific one.
    3. Keep as short as possible. Just extract the key part
    4. Demonstrate only key concepts and remove irrelevant codes.
    5. Demonstrate the correct API usage instead of work-around
    6. Keep number of codes as fewer as possible to reduce readers' burden.
    7. Highlight key points in descriptions of code example. (Because most engineers read code first instead of text)
    8. give short description for a code snippet for its purpose
    9. leave related variables declaration
    10. Line number first, then description because it's easier to look up descriptions upon lines, e.g. Line 13: this line's description
  13. In Wiki page style, words before TOC is like preface. The "overview" should belong to one part of content and should be made as a header.
  14. When using third party library, specify its version
  15. Store example codes in a version control repository. They can be changed or verified in the future.
  16. use an editor with a spell checker
  17. Write directly on wiki page instead of writing in a word processor.
  18. create a separate book for new version instead of modifying original books
    e.g. for version 3.0.0 - http://books.zkoss.org/wiki/Documentation:Books/ZK_Spreadsheet_Essentials_3

Learning Resource

English Writing:

Technical Writing:

Problem

  • no offline editor
  • no version control
  • verbose syntax
  • pdf edition cuts code

potential tool: http://gitbookio.github.io/javascript/basics/comments.html

ZK Documentation Format


Message Template

Standard:

Icon info.png Note: note message


Deprecated:

[i] Note: note message


Warning: warning message


Not Work sample:

/_w/images/e/e2/Icon_info.png

Font design

http://3.7designs.co/blog/2008/06/10-examples-of-beautiful-css-typography-and-how-they-did-it/

Deprecated

User:Hawk/Simple ZK deprecated

User:Hawk/ZK Brief Intro and Simple Architecture

User:Hawk/temp

Supplement

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