带有 ObjectiveC 的形状文件 [英] Shapefile with ObjectiveC

问题描述

我想知道在objective-C中是否有一个类可以操作shapefile(读/写/编辑)?

I like to know if there is a Class, in objective-C, that manipulates shapefile (read/write/edit)?

我在kml文件上发现了一堆东西，但对shp文件一无所知，但绝对想避免转换文件格式(shp->kml)的需要.

I have found a bunch of stuff on kml files but nothing about shp files, but definitely want to avoid the need of converting files format (shp->kml).

谢谢

推荐答案

Pascal Brandt 有一个方案，...(有点简单，但对我来说确实有用)... CocoaShapeFile.他只是把 C 函数装扮成 Objective-C 的衣服，但它很适合阅读.如果您是为 iOS 而不是 Cocoa 拍摄，那么您只需要自己进行一些转码/转换.

There's one from Pascal Brandt, ... (it's a little simplistic, but it certainly does the trick for me) ... CocoaShapeFile. He's just dressed up the C functions in Objective-C clothes, but it works just fine for reading. If you're shooting for iOS instead of Cocoa then you'll have to do just a little transcoding/conversion yourself.

只用了一点点努力，我就能够在 iPad 上运行它，使用 MapKit，并使用引用计数代替垃圾收集(iOS 上不可用).

With only a little bit of effort, I was able to get it running on the iPad, using MapKit, and using reference counting instead of garbage collection (not available on iOS).

为了潜在地减轻你的痛苦(当然，我不知道你打算用 shapefile 做什么)，但我已经发布了一个快速而肮脏的 git 存储库，iOS-Shapefile，向您展示了如何将 shapefile 形状(如点和多边形/折线)放入 iOS MKMapView.

To potentially ease your pain a little (granted, I don't know what you plan to do with shapefiles), but I've released a quick and dirty git repository, iOS-Shapefile, that shows you how to get shapefile shapes (like points and polygons/polylines) into an iOS MKMapView.

至于写作和编辑，(因为这超出了我的兴趣)，我认为您可能不得不推出自己的方法，与我在这里提供的有所不同.

As for writing and editing, (since that was beyond my interest), I think you'll likely have to roll your own methods, deviating from what I've provided here.

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