January 2012
Intermediate to advanced
584 pages
11h 56m
Chinese
Content preview from 操作介面設計模式 第二版
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316
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第七章
區域縮放（
Local Zooming
）
圖
7
-
31
The DateLens
日曆
這是什麼
在一個緊密的頁面中顯示所有的資料，每個資料項目都很小。滑鼠游標移到的任何
地方，即放大該處的項目，使項目容易閱讀。
何時使用
在使 用任 何有 組 織的 形式 來展 示 大 型 資料 集合 時 — 不 管是 採用 圖 表 、 地圖 、網
絡、甚至表格 — 可能展示在大型或小型的螢幕上。使用者可以用滑鼠游標或觸控
式螢幕「指向」感興趣的地方。
使用者將在組織良好的結構中瀏覽資料或搜尋興趣點（例如，找出日曆中的某個日
期）。提供概觀是有必要的，以便找出興趣點，但是使用者不需要一次看見所有資
料點的細節 — 拉近（zooming）就足以讓使用者取得足夠細節。
某些形式的區域縮放，特別是魚眼透鏡（fisheye lens），只有在使用者願意學習新
的互動技巧、以求熟練使用某個程式時才適合採用。使用區域縮放需要耐性。
為何使用
尋常的縮放對於大多數的高密度資訊圖形作用良好，但是會佔用環境背景：一個完
整放大的檢 視畫面、不 再顯示整體 資料集合的 概觀。區 域 縮 放 的 焦點放在 局 部細
節，同時環境背景固定不變，使用者也會停留在同一個概念空間裡。
DI_2e_ch07.indd 316 2012/1/5 下午 04:00:44
模式
|
317
然而，區域縮放的成本有可能包括了概念空間的扭曲。請注意魚眼透鏡如何改變圖
7- 31 的景物（魚眼透鏡是一種區域縮放方式，能維持縮放區域與畫面其餘
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.