Nicholas-Furness的最新贡献

嗨，Anoop，好问题。这已经超出了这个帖子和论坛的范围，但是我会试着给你一些建议。我不知道什么是泛化，我们的服务器版本是9.31。这是我们应该在服务器端实现的东西?是的,服务器端。我们怎么知道一个层是不是广义的呢?泛化只是将矢量数据的“分辨率”降低到适合您的目的的水平(在本例中，在给定的缩放级别上呈现)的过程。例如，一条包含数千个点的折线适合绘制墙壁大小的地图，但在小屏幕上看起来完全相同只需要十分之一的点。一个更好的问题可能是:您如何知道一个特性类是否需要泛化?让我们只考虑查看数据(编辑是另一个问题，一般规则是不要直接编辑泛化数据)。 And remember this discussion is for dynamic layers only (i.e. not tiled layers). [INDENT] Ex. 1: You could have a problem if you zoom in on a polyline or polygon layer much further than your app needs and can still see a lot of detail. That means that when you're zoomed at a working level, the data is too detailed for what you can see at that scale. Ex. 2: You could perhaps have a polygon that is the right level of detail, but that is much larger than your visible working area. The single polygon still needs to be pulled over in its entirety for rendering. Solving that can be a whole separate discussion. Ex. 3: You might find (as is possibly the case here) that the data is more detailed than your client specifications allow for, and so you'd want to create a generalized set of that data just for that client app. [/INDENT] There is a lot to consider. Client limitations, bandwidth, managing the data, data updates, editing. The 9.3 documentation has a short discussion on the topic and overview of the operations . You will need an ArcInfo license to use most of the tools (you'll probably need " Simplify Polygon "). For 10.0, the toolset is arranged differently but attacks the same problems. I do work with many complex layers with boundary of various states, municipalities etc. To be exact all the layers have some kind of complex irregular graphics in it If it were me, the first thing I would do is try to show that it is these complex layers that are causing your memory issue. Either use the profiler, or create a test set of generalized layers and use those. If so, try to categorize your feature classes: "Needs generalizing" (causes a memory warning), "could do with generalizing" (takes a while to load, but doesn't cause a memory warning), and "fine as it is". That should put you in a better position to work out your next steps (and longer term data management goals if necessary). Hope this helps a little, Nick. ．.．查看更多

嗨，伙计们，我有下一个代码，其中answerText是UITextField if (answerText。text == @"1") {NSLog(@"YES");} else NSLog(@"NO");这段代码总是返回NO时，我键入textField“1”(在iOS模拟器)，它只返回YES时，我键入Xcode answerText。Text = @"1"，为什么?你好。你在比较指向两个字符串的指针。记住，@"1"只是一个快捷方式来创建一个全新的NSString对象，其中包含单个字符"1"。两个字符串看起来一样，但它们是独立的对象。相反，请使用isEqualToString:(参见Apple的文档)。如果([answerText。text isEqualToString:@"1"]) {NSLog(@"YES"); } else NSLog(@"NO"); Cheers, Nick. UPDATE: I just happened across this road map from Apple , and this page seems particularly relevant. ．.．查看更多

嗨Patrick，如果你在你的半透明覆盖UIView的属性检查器上取消选择“用户交互启用”复选框，你应该让交互气泡通过底层的AGSMapView。注意，在标识检查器的可访问性部分下也有一个“用户交互启用”设置，但你不应该修改这个设置，除非你在同一部分启用了可访问性。到目前为止，我只在模拟器中测试了这一点，但可以点击，平移和捏。我还没有尝试过任何更复杂的手势，但我怀疑它们会被传递下去。干杯,尼克。附注:我附上了一个最小的XCode 4.2/iOS 5示例项目来展示这一点。 ．.．查看更多