《GetData 图数字化仪使用方法.docx》由会员分享，可在线阅读，更多相关《GetData 图数字化仪使用方法.docx（3页珍藏版）》请在三一办公上搜索。
1、GetData 图数字化仪使用方法GetData Graph Digitizer用法 GetData Graph Digitizer 2.22 Quick Start Step 1 Step 2 Open image file (File=Open Image). Set the scale by setting four points Xmin, Xmax, Ymin and Ymax, and by assigning logical coordinates to these points (Xmin value, etc.). To set the scale use Operation
2、s=Set the scale menu or context menu (right mouse button). Picture below illustrates how Xmin, Xmax, etc., can be set in the case of sample graph. Xmin and Xmax are assigned values 20 and 80 respectively, Ymin and Ymax are assigned values 1e+14 and 1e+15. The scale is logarithmic along Y axis, this
3、can be set in Adjust scale window under Operations=Adjust scale menu. Step 3 Digitize graph. Automatically digitize, using one of the two methods. 1) Operations=Auto trace lines. Choose starting point by clicking left mouse button, or right mouse button to additionally choose direction for line trac
4、ing. The same can be done through context menu (Auto trace lines item). 2) Operations=Digitize area. First you will be asked to set grid type, distance between grid lines, and other options. Then choose the area to digitize by holding left mouse button and dragging the grid (in case of rectangular g
5、rid hold down Shift to rotate the grid). You can move the grid by holding down Ctrl. Manually digitize, using point capture mode (Operations=Point capture mode). In this mode data points can be also moved; to move a point first select it with right mouse button, and then set it at a new location by
6、left button. Data points can be also set by double clicking left mouse button in Magnifier window, or Shift + clicking in main window or in Magnifier window. To remove points it is convenient to use eraser tool (Operations=Data points eraser). Step 4 Copy obtained data to the clipboard (File=Copy da
7、ta to buffer or Ctrl+Alt+C) or export to one of the following formats: TXT, XLS, XML, DXF or EPS (File=Export data). Data can also be copied to buffer directly from Information window (Ctrl+C or Ctrl+INS). Settings for export to the buffer and for export to the text file can be changed in the Option
8、s window under Settings=Options menu. GetData 图数字化仪 2.22 快速启动步骤 1 步骤 2 打开图像文件 。通过设置四个点 Xmin，Xmax，Ymin 和 Ymax，并分配到这些点 的逻辑坐标设置规模。若要设置规模使用操作 = 设置缩放菜单或上下文菜单 。下面的图片说明了如何 Xmin、 Xmax 等，都可以设置在示例图。Xmin 和 Xmax 分别分配值 20 和 80、 Ymin 和 Ymax 分配值 1e + 14 和 1e + 15。规模是沿 Y 轴对数，这可以在业务项下的调整分摊比额表窗口中设置 = 调整分摊比额表菜单。第 3 步数
9、字化图形。自动数字化，使用这两种方法之一。1） 操作 = 自动跟踪行。选择通过单击鼠标左键或鼠标右按钮，另外选择方向线追踪的起始点。同样可以通过上下文菜单 。2） 操作 = 数字化领域。首先会问你要设置网格类型、 网格线和其他选项之间的距离。然后，选择要通过按住鼠标按钮并拖动 网格数字化的区域。您可以移动，请按住手动网格数字化，使用点的捕获模式 。 ctrl 键。在此模式下可以还移动数据点 ；移动点的第一选择权与它鼠标中键，并将其设置在新位置由左侧的按钮。数据点，可以还通过双点击鼠标左键在放大镜窗口，或 Shift + 单击在主窗口或放大镜窗口中的设置。若要删除点很方便，使用橡皮擦工具 。第 4 步副本获取到剪贴板中的数据 。也可以将数据复制缓冲区直接从信息窗口 (Ctrl + C 或 Ctrl + INS)。可以在设置下的选项窗口中更改设置导出到缓冲区和导出到文本文件中 = 选项菜单。
