Phần mềm Universal Maps Downloader tải ảnh viễn thám vệ tinh

Hướng dẫn tải ảnh viễn thám, vệ tinh bằng phần mềm Universal Maps Downloader

How to download?

See the screenshot. It is very easy to use.

1, Select a Maps type from the left tree view. There are 2400+ maps types. You can goto here to see all tiles samples.

2, Enter a task name, such like “Mytask.umd”. All task files are saved as *.umd.
If you want to continue an old task, click button “Open task… “.

3, Drag the trackbar to define the zoom level. The zoom level defines the image precision. For trial version, the max zoom level is 13, so you can not download high precision images.

4, There are 4 parameters (Left Longitude, Right Longitude, Top Latitude, Bottom Latitude) to define the area scope of images that you want to download.

Left Longitude: -180<=value<=180, for East, the value is positive, for West, the value is negative.
Right Longitude:-180<=value<=180, for East, the value is positive, for West, the value is negative.
Top Latitude:-85<=value<=85,for North, the value is positive, for South, the value is negative.
Bottom Latitude:-85<=value<=85,for North, the value is positive, for South, the value is negative.

For longitude and latitude, the input measurement is degree. You can convert the measurement of “Degrees, Minutes,Seconds” to “Degrees” by click menu “Tools->Convert ‘Degrees,Minutes,Seconds’ to ‘Degrees’…”.

Note: the really downloaded area will be extented a little than you inputed coordinates, to ensure that we get each whole tile.

5, Select a path to save the project and downloaded images

6, Then click button “Start“, OK, start downloading now … !

When downloading, the log window will display the downloading process. When finished, the log will be saved to a file.

Note: for some maps type, the button “Custom Parameters” will be enabled, you can click it to set parameters.

Quý doanh nghiệp cần mua bản quyền phần mềm  Universal Maps Downloader
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