VisualLab VisualLab — dcsDigitiser — dcsDigitiser

Digitize FTIR spectrum

Two simple steps to digitize a graph

Digitize FTIR spectrum

Hundreds data points are automatically digitized in a second.

1) Click this button

2) move crosshair on graph and click, done!

3) A graph is digitized in a second.

VisualLab is not only a powerful software product for computations of mathematics, 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 can be found in:  How to digitize graphs 





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 share record graph


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


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


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


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

Calculation of breaking energy


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


Example 7: Data can come from literature graphs, also from equation computations. It is so easy to solve a differentail equation system. Input the equation and inital values in, then click "Solve".
VisualLab solve differential equations


Example 8: 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.
VisualLab measures size of map


Example 9: VisualLab digitizes a drawing with irregrular boundaries, and calculates the area size enclosed inside.
VisualLab measures size of drawing


Example 10: VisualLab measures the area size enclosed inside for a civic drawing of building plan.
VisualLab measures size of drawing plan


Example 11: 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).
VisualLab measures area size of Caspian Sea


Example 12: 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.
VisualLab measures area size of Albert Lake


Example 13: VisualLab find the line with equal color for a contour graph.
VisualLab digitizes contour graph


Example 14: 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.
VisualLab digitizes gels of human hair


Example 15: A probability curve of normal distribution with its mean μ = 10, σ = 13 is displayed. Probability for a sample falling in range 4 <= x < 13 is computed as the area size.
VisualLab calculates normal distribution probability


Example 16: Type (copy paste) your data to VisualLab, click "Run" to obtain two-way ANOVA results.
VisualLab ANOVA statistics


Example 17: Data can come from literature graphs, from equation computations and also directly from instruments. VisualLab > Point Generation > By serial devices... to use serial communication (RS232c or USB) to collect data from an electronic balance.
VisualLab records data by serial communication





VisualLab: format-free computational math...   automatic graph digitizing...   freely computating area size enclosed by points...

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