Vi:JOSM/Guide
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Bắt đầu | Cơ bản(en) | Nâng cao(en) | Upload changes to openstreetmap.org(en) | Plugins(en) | Phím tắt | |||||||||||||||
Chào mừng bạn đến với trang hướng dẫn sử dụng JOSM.Trang này được chia nhỏ thành nhiều mục (xem các thẻ ở phía trên), bắt đầu từ một số giới thiệu dành cho người mới bắt đầu. Bài viết giả sử bạn đã biết một số khái niệm cơ bản về OpenStreetMap nên chỉ tập trung toàn bộ vào việc sử dụng JOSM chứ không dàn trải các nội dung khác. Để tìm hiểu các khái niệm cơ bản, bạn có thể đọc phần tổng quan tại đây hoặc tại đây Bắt đầu với JOSM
Nếu không thích dùng file jar, bạn có thể sử dụng bản chạy trên web tại địa chỉ sau: Phiên bản trên Web Về vấn đề cài đặt và cách khắc phục khi gặp lỗi xin xem tại Cài đặt JOSM Khi JOSM khởi động, bạn sẽ thấy một số dòng chữ nói về phiên bản cũng như các thông tin cập nhật của JOSM. Các thông tin này được tự động cập nhật. Tải dữ liệu về máyClick the download toolbar button () to open the download dialog window. Initially the 'slippy map' tab is selected. Slip around the map by dragging with the right mouse button, and zoom using the mouse scrollwheel or by double-clicking. Zoom in on the bit of the map you're interested in editing. Finally use the left mouse button to drag a box around the area you want to download. You should download an area encompassing the editing you will be doing, but avoid downloading too much map data (the OpenStreetMap server will take a long time to respond, and JOSM may slow down or run out of memory) You probably want to zoom right in close to the maximum zoom level. Pick a handful of streets around the area you are interested in. Start small, because you can download more data as you need it. When you click 'OK', the data should appear in the main editing area. Di chuyển và Thu/PhóngWithin the main editing area, you can pan around and zoom in and out.
If you can't see anything you probably need to zoom out (scroll backwards) until things come back into view. While zooming in you need to point the mouse at the data you wish to zoom towards. Yellow hatching (diagonal lines) indicates areas which are not loaded into JOSM at the moment. You should see a rectangular area with a plain black background. This is area you have downloaded. Within this area (and trailing off the edges of it) you will see the OpenStreetMap data. Hướng dẫn nâng cao về việc tải dữ liệuNow that JOSM knows where it is, it's quite easy to request a little bit more data to extend the downloaded area. Use the zooming and panning features described above to position the visible area. The rectangular area of the screen which is currently in view, will be the default selected area next time you click the download toolbar button ([[[File:JOSM-Icon-download.svg|24px]]) Try downloading a little bit more data in a second rectangular patch of a about the same size alongside the area you already downloaded. To do this you will need to zoom in and out until the width of the first downloaded area is about the same as the visible screen width, and then pan off to one side to position the view on some new territory (a patch with yellow hatching), then click download. This time you don't need to do anything within the download dialog. Just click 'OK'. Zoom out a little bit to see the result. Remember, always avoid downloading too much data in one go. Đọc file GPXAbove we described using the download dialog 'slippy map' tab to choose an area to download when we first start JOSM. Another approach is to load in a GPX file before downloading data. If you want to do some editing without using GPS traces, skip this section. Here we will assume you have figured out how to get data off your GPS device and into a GPX file (or NMEA file) on your local disk (See Making GPX Tracks) Opening your GPX file is very straightforward. Click 'File' menu -> 'Open...' () and choose the file. When JOSM is displaying a GPS trace, you can zoom and pan using the scrollwheel and right mouse button as described above. Now you can follow exactly the same procedure to download some map data alongside your GPS trace. As described in the previous section, position the visible area of the screen, and click the download button to get some data. As always, you should take care to avoid downloading too much data. If your GPS trace is from a short walk, then you might typically download an area encompassing the whole thing, but if it is a longer trace, travelling through a dense complex area of the map (e.g. a car journey driving through a city) then this might be too much data. Instead you should zoom in on just one end of your trace and grab a small rectangular area to start with. Tải file GPS của người khác về máyOpenStreetMap has a database which is separate from the main map data, especially for sharing raw GPS data. You can download any raw GPS data which others have contributed in the area you are looking at. This is an additional tickbox option in the 'Download' dialog. Working with other people's traces, is not required and often may not be very useful (especially anywhere with Yahoo! Aerial Imagery coverage), but it can give a useful indication of how accurate your own trace is, and how existing data has been positioned. Where several traces have been taken along the same road, it may be useful to judge the position of an average line, to compensate for inaccuracies of any one trace. As well as viewing other people's traces, you can upload your own. Again this is not required. Now you're ready to begin some basic editing. |