Every time you double click a point, Origin auto traces to find more points along the curve. Let's pick more red points for Line 1 using the Auto Trace Line by Points method.Ĭlick the Auto Trace Line by Points button.ĭouble-click on red points to the left side of the peak and the right side of the peak. Multiple digitizing methods can be used on same line as long as the line is highlighted on the Data tab of the Digitizer dialog. You can click the Manually Pick Points button again to pick more points for line 1. Use the arrow keys on the keyboard to move the point or press the Delete key to delete it. If you want to move or delete a captured point,click the captured point in the image to select it. The Number of Points on Line 1 of the Data tab shows the number of points that were captured for Line 1. Pick several more points and click the Done button.You can also use the Zoom and Pan tool mentioned in the Edit Axes section to zoom and pan the image to pick points more precisely. The Magnifier window on the Data tab of the Digitizer dialog provides a blown up view of where the cursor is. Let's manually capture some points on the red line.ĭouble click on the red curve to pick a point. Similar to the Auto Trace Area button except that points are created only within the selected area. Data points will automatically be captured along the curve. Drag a rectangle on a desired area of the image. This is a hybrid of the previous two methods. They are all under the Digitize menu and have corresponding buttons.ĭouble click on every spot you want to capture a point.ĭouble click on a curve on the image and data points will automatically be captured along the curve.ĭrag a rectangle on a desired area of the image and data points will be captured where ever the gridlines in rectangle intersect with the image curve. After editing Axes, you can right click and save Axes settings in order to load them in the future for similar images.īesides the Manually Pick Data Points method, the Enhanced Digitizer provides four automatic digitizing methods to capture data points.Press Ctrl+W to restore the original image size. Use the Zoom and Pan button on the Tools toolbar or hold down A and use the mouse wheel to zoom in and pan the image. Drag each line so that it lines up at a location where you know the axis values and enter the axis value in the corresponding row in the Digitizer dialog. and Image: Clear Background menus to rotate the image and clear background noise and color fills.īefore capturing data points, you need to setup axes on the image so that there is a reference for calculating the XY coordinates of the data points that will be captured later.Ĭlick the Edit Axes button or make sure it is pressed.įour lines will appear framing the image. Select Image:Remove Cartesian Gridlines to remove the gridlines.
In the Digitizer dialog, there are hints at the bottom of the Axes tab to guide you through each step.There are three line plots in the image: the black plot is the baseline and the red and blue plots are spectra.
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