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en:processing:персистентная_длина [2012/07/04 11:14] Анастасия Большакова |
en:processing:персистентная_длина [2012/09/05 21:31] Анастасия Большакова [Evaluate] |
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- | ====== Persistent lenght calculation ====== | + | ====== Persistence length calculation ====== |
+ | ===== Add curve ===== | ||
- | For pesistent lenght calculation first, you need to choose a curve, using the tool [[Выделение кривых|Curve selection]]. | + | For pesistence length calculation, first you need to choose a curve, using the tool [[Выделение кривых|Curve selection]]. |
- | After curve selection, press the button "Add curve to list" | + | After selecting the curve, press the button "Add curve to list" {{:en:processing:perslen_big.png|}}. |
- | {{:en:processing:perslen_big.png|}}. | ||
- | Then choose (or create) data file with curves. | + | The dialog with data file name will be shown. You can choose an existing file or enter a new file name - if no such file exist, it will be created. |
+ | The coordinates of the curve points will be stored in this file. | ||
{{:en:processing:list_curves.png|}} | {{:en:processing:list_curves.png|}} | ||
- | Press the button "Ok". | + | Press the "Ok" button. |
- | After that, choose other curve, and add it into the data file with list of curves. | + | |
+ | After that, choose other curve, and add it into the data file with the curves list. | ||
For reliable result you need to collect in data file at least 100 curves. | For reliable result you need to collect in data file at least 100 curves. | ||
- | For persistent lenght calculation go [[меню Математика|Mathematics]]->Persistent lenght->Evaluate | + | ===== Evaluate ===== |
- | {{:en:processing:perlen-evaluate.png|}} | + | For persistence length calculation go to the menu [[меню Математика|Mathematics]]->Persistence length->Evaluate: |
- | After this operation in the main window will appeare three new windows: | + | {{:en:processing:perlen-evaluate.png?400|}} |
- | 1) with calculated persistent length. | + | |
- | {{:en:processing:perlen-value.png?|}} | + | After this operation three new windows will appear in the main window: |
- | 2) with the graph theta<sup>2</sup> from length of the curve | ||
- | {{:en:processing:perlen-graph.png?|}} | + | - with calculated persistence length |
+ | - with the graph %%<%%Theta<sup>2</sup>%%>%% from contour length of the curve, where Theta is an angle of the curvature along the curve | ||
+ | - with the setup menu of the graph window | ||
- | 3) with the setup menu of the graph window. | + | {{:en:processing:perlen-value.png?300|}}(1) |
+ | {{:en:processing:perlen-graph.png?300|}}(2) | ||
+ | {{:en:processing:perlen-data.png?200|}}(3) | ||
- | {{:en:processing:perlen-data.png|}} | + | Where "Maximum curve length" is a limit on the horizintal axis, |
- | + | ||
- | Where Theta is an angle of curvature of the curve, | + | |
- | "Maximum curve length" is a limit on the horizintal axes, | + | |
"Averaging step" is a value of the step averaging. | "Averaging step" is a value of the step averaging. | ||
+ | For more details see our video tutorial: http://youtu.be/dWqAfaWDqZc |