Quickly that you will not even notice it. When you push the "Trace" button, the "Progress" will show, though on fast computers this could be gone so Location indicator allows you to choose the best dened location to pick the color to trace. The color location indicator (blue) tells DataThief which color to trace. So we locate it at the right side of the red line. Line, but more important it prevents DataThief from retracing the path in reverse direction once the end of the It allows us to stop tracing in the middle of a The redindicator is the end location indicator. So we shall locate it at the extreme left of the red line with the direction pointer pointing right and up. Idea about the direction to start tracing (this allows you to start tracing somewhere in the middle of a line). With the small extension at the right side is the start location indicator with the extension giving DataThief an Let us follow the red line that starts at. Then you see three greyed out indicators Prev, Right from these you see the Start EndĪnd Color point indicator. It is the zoom indicator, telling you the image is at it's original size. Actually it will always display the color that is underneath the color location indicator. This is the area where you can see the color you
Next to the zoom buttons you see the trace color indicator. Notice that the quality indicator now is fully green, showing perfect quality. Once these steps are taken, our example looks like Fine tune the reference location indicators (by zooming in on them) Fill the coordinates corresponding with the location in the reference point coordinate text elds.ģ. The location indicator will ash three times through black,Ģ. You can nd the location indicatorīy clicking on the reference point indicator. Position the three reference location indicators over appropriate points. SoĪctually they even only dene a point, and certainly not a valid system of axes.ġ. If you look at the values that are the coordinates for the three reference points, you will see these are all 0. Right from these you see the message area stating that the "Reference Right from the quality indicator you see the zoom in button and zoom out button. As we have not yet dened the axes, the quality indicator is red which It gives an assessmentof the quality of your axis denition. The shallow red vertical bar is the quality indicator. After each indicator are two text elds where the coordinates of the
Which is a button that allows you to nd the location indicator and one or two text elds that allow you toĮnter the coordinates for the location. Note theĭifference between a location indicator, which is a circle giving a position on your graph, and a point indicator, In the tool bar you see from left to right the three reference point indicators, each with it's own color. The other three are the Start location indicator (green), the Stop location indicator (red) and theĬolor location indicator (blue). In the image area you see the "Dump", that is the small gray window with the The light gray area underneath it is the tool bar, and the white area with the Once you have a running DataThief, select "Open." from the File menu, and select the le you want to takeĭata from. On Macintoshes with MacOS 8 or MacOS 9, double click the Datathief application icon.On Macintoshes with MacOS X and on Linux or Unix either double click the Datathief icon, or go to theĭirectory where you installed DataThief and type Datathief. On Windows, double click the Datathief.jar icon. Once the virtual machine is installed, you may start DataThief. Instructions that are appropriate for your machine. The Java Virtual Machine can be downloaded from Follow the This means, that apart from the "executable" called Datathief.jar, you will have A quick introductionDataThief III is written in Java. Systems withouth three well dened points 7ġ. Systems with three well dened points 7Ģ.2.2.
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