VisualLab VisualLab — dcsDigitiser — dcsDigitiser

Digitize FTIR spectrum

Two simple steps to digitize a graph

Digitize share graph

Hundreds data points are automatically digitized in a second.

1) Click this button

2) move crosshair on graph and click, done!


VisualLab is not only a powerful software product for mathematics computations, it is also a powerful graph digitizing tool. This web page shows some examples of VisualLab's applications for graph digitizing and gel digitizing. More information about "How to digitize graphs" can be found in: pdf icon

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Example 1: To digitize a graph of Australian share market history, simply 1) click the digitizing tool button, 2) move crosshair over the graph and click.
Digitize Australian share graph

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Example 2: The graph of Australian Share Market History is then automatically digitized to obtain 830 x-y numbers.
share graph is digitized

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Example 3: click Cruve fitting and chose a polynominal function, the digitized graph is curve fitted as shown is the following figure.
share graph Curve fitting

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Example 4: A strain-stress curve for mechanical testing of an alloy is simply digitized. To calculate the work for breaking the testing specimen, two more points are added by clicking on the graph.
Digitize stress-strain curve

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Example 5: This button enables computation of the area size enclosed by all the points on the graph. Click it leading to calculation of the work per volumn for breaking the specimen under testing, expressed as shaded area size, S, which is 3.34 x 106 J/m3. The breaking work can then be calculated as follows, given that the cross section area, A, and initial specimen length, L0, are known:
W = A L0 S

breaking energy of stress strain curve

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Example 6: A single peak DSC curve is digitised and its equation is obtained by curving fitting; X-Y numbers of a multiple peak curve is imported to VisualLab - dcsDigitiser, the curve is then fitted by curve fitting to obtain the eqution: its multiple components are deconvoluted.
multi peak curve fitting

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Example 7: Simply by a few clicks, VisualLab-dcsDigitiser ditigises a contour line. The area size enclosed by the contour line is then calculated by a click.
measure area size of a map

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Example 8: VisualLab digitizes a drawing with irregrular boundaries, and calculates the area size enclosed inside.
measure area size of building drawing

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Example 9: VisualLab measures the area size enclosed inside for a civic drawing of building plan.
measure area size of drawing plan

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Example 10: Google Earth satellite photo of the Caspian Sea was copied and pasted to dcsDigitiser, with a scale bar of 200 km being attached. The coast line of the Caspian Sea was then manually clicked against the photo. When the distance between the first-last points is close enough, dcsDigitiser automatically calculates the area and perimeter of Caspian Sea, being around 367,153 km2 and 3,727 km, respectively (no curvature of the Earth ground surface has been taken into consideration in this case).
measure area size of Caspian Sea

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Example 11: Formula 1 Qantas Australia Grand Prix car racing is held along the Albert Lake in Melbourne. The lake's area size and circumference are: 510,598 m2 and 4842 m respectively.
measure area size of Albert Lake

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Example 12: VisualLab find the line with equal color for a contour graph.
digitize contour graph

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Example 13: VisualLab - dcsDigitiser can be used for gel analysis as well: Both novelist Brown and historian Hart are interested in reviewing the forensic records of Mr. Kennedy's assassination, and have the hair DNA testing results of 4 then suspects in hand. Using dcsDigitiser, Brown and Hart digitized the hair DNA gel and obtained numerical density profiles for peer analysis by their own eyes, which are often, though not always, sharper than that of CIA and FBI detectives.
digitize gels of human hair

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