Frequently Asked Questions
How does Grab It work?
Grab It loads pictures, prompts the user to define the boundaries of the chart or picture, asks for the scale information and is then ready to use. Simply follow the on-screen prompts and click the picture to retrieve your data.
Does Grab It handle a tilted graph (i.e. not scanned in straight)?
YES. This is automatically incorporated into the data grabbing process. No re-alignment, or measurements of tilt are needed. Grab It! performs all of the calculations as you click.
Is there a Macintosh version of Grab It?
No. Grab It functions by using Active X controls that are currently only available in Microsoft Excel 97 for pc's. MS Excel 98 for Macintosh does not support these controls.
What is the maximum resolution of the data?
Resolution is dependent on 2 things:
- Scan/image quality (pixels/inch or dots per inch, dpi).
- The zoom of the screen (in Excel 97).
Because Excel is "zoom-able", it is impossible to calculate the exact resolution of any given case. For this reason, Grab It! is not well suited for exacting error analysis oriented tasks. Grab It is ideal for digitization of data for re-publication, data comparisons, or convenience.
What if there are different symbols or noise in the scanned picture?
Since Grab It depends on user clicks, simply click the data you want, and avoid the data you don't. To separate data sets (with different symbols), retrieve one whole set, then click the button and retrieve the second set.
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