Point - SatCO2

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The data analysis tab provides the function of making analysis on the points, lines, or areas of interest in the target image. One example is shown in Figure 2-25.

Figure 2‑25. Data analysis tab

2.4.1 Point

Click the “point” button, and the query dialog box will pop up (Figure 2-26). The query mode has three types: 1) click directly on the image to select points of interest; 2) enter the longitude and latitude information of interested points in the dialog box; and 3) import a file with multiple points of latitude and longitude information from user’s local computer, such as the stations’ positions or underway information.
Click “import” to load the .txt format file of lon/lat information recorded in “longitude, latitude” format. Click “export,” and export the information of the selected point in batches (Figure 2-27). The user can select the .txt file exported from the previous layer, and read the information of the same latitude and longitude points from the current layer.
This function only queries the spatially matching information in a single layer. If the user needs to match multiple satellite data files from different times, use the “comparison analysis” menu.

Figure 2‑26. Point analysis dialog

Figure 2‑27. Export .txt file

2.4.1 Point

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