Units/ru: Difference between revisions
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Некоторые сведения об единицах измерения: |
Некоторые сведения об единицах измерения: |
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*[http://ru.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F Метрология] - наука об измерениях, методах и средствах обеспечения их единства и способах достижения требуемой точности. |
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*[https://ru.wikipedia.org/wiki/%D0%9C%D0%B5%D0%B6%D0%B4%D1%83%D0%BD%D0%B0%D1%80%D0%BE%D0%B4%D0%BD%D0%B0%D1%8F_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0_%D0%B5%D0%B4%D0%B8%D0%BD%D0%B8%D1%86 Международная система СИ] |
*[https://ru.wikipedia.org/wiki/%D0%9C%D0%B5%D0%B6%D0%B4%D1%83%D0%BD%D0%B0%D1%80%D0%BE%D0%B4%D0%BD%D0%B0%D1%8F_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0_%D0%B5%D0%B4%D0%B8%D0%BD%D0%B8%D1%86 Международная система СИ] |
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*[https://ru.wikipedia.org/wiki/%D0%90%D0%BD%D0%B3%D0%BB%D0%B8%D0%B9%D1%81%D0%BA%D0%B0%D1%8F_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0_%D0%BC%D0%B5%D1%80 Английская система мер] |
*[https://ru.wikipedia.org/wiki/%D0%90%D0%BD%D0%B3%D0%BB%D0%B8%D0%B9%D1%81%D0%BA%D0%B0%D1%8F_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0_%D0%BC%D0%B5%D1%80 Английская система мер] |
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*[https://ru.wikipedia.org/wiki/%D0%93%D1%80%D0%B0%D0%B4%D1%83%D1%81_(%D0%B3%D0%B5%D0%BE%D0%BC%D0%B5%D1%82%D1%80%D0%B8%D1%8F) Градусы] |
*[https://ru.wikipedia.org/wiki/%D0%93%D1%80%D0%B0%D0%B4%D1%83%D1%81_(%D0%B3%D0%B5%D0%BE%D0%BC%D0%B5%D1%82%D1%80%D0%B8%D1%8F) Градусы] |
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*[https://github.com/3drepo/occt/blob/master/src/UnitsAPI/Units.dat Единицы измерения реализованные в OCC] |
*[https://github.com/3drepo/occt/blob/master/src/UnitsAPI/Units.dat Единицы измерения реализованные в OCC] |
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== Примеры == |
== Примеры == |
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== Поддерживаемые единицы измерения == |
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== Supported units == |
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A complete list of all supported units can be [[Expressions#Units |found here]]. |
A complete list of all supported units can be [[Expressions#Units |found here]]. |
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Latest revision as of 16:21, 15 August 2022
Некоторые сведения об единицах измерения:
- Метрология - наука об измерениях, методах и средствах обеспечения их единства и способах достижения требуемой точности.
- Международная система СИ
- Английская система мер
- Производные единицы СИ
- Градусы
- Единицы измерения реализованные в OCC
Примеры
# -- some examples of the FreeCAD unit translation system --
# make a shortcut for the examples
pq = FreeCAD.Units.parseQuantity
# 10 meters in internal numbers
pq('10 m')
# doing math
pq('3/8 in')
# combined stuff
pq('100 km/h')
# transfer to other units
pq('100 km/h')/tu('m/s')
# derived units (Ohm)
pq('m^2*kg*s^-3*A^-2')
# or
pq('(m^2*kg)/(A^2*s^3)')
# angles
pq('2*pi rad') # full circle
# as gon
pq('2*pi rad') / tu('gon')
# more imperial
tu('1ft (3+7/16)in')
# or
pq('1\' (3+7/16)"') # the ' we have to escape because of python
# trigonometry
pq('sin(pi)')
# Using translated units as parameters, this command will create a 50.8mm x 20mm x 10mm box
b = Part.makeBox(pq('2in'), pq('2m')/100, 10)
Поддерживаемые единицы измерения
A complete list of all supported units can be found here.
Смотрите Также
- The Expressions page for a list of all known units.
- The documentation of Quantity.
- The Std UnitsCalculator tool.
Power user documentation
- FreeCAD scripting: Python, Introduction to Python, Python scripting tutorial, FreeCAD Scripting Basics
- Modules: Builtin modules, Units, Quantity
- Workbenches: Workbench creation, Gui Commands, Commands, Installing more workbenches
- Meshes and Parts: Mesh Scripting, Topological data scripting, Mesh to Part, PythonOCC
- Parametric objects: Scripted objects, Viewproviders (Custom icon in tree view)
- Scenegraph: Coin (Inventor) scenegraph, Pivy
- Graphical interface: Interface creation, Interface creation completely in Python (1, 2, 3, 4, 5), PySide, PySide examples beginner, intermediate, advanced
- Macros: Macros, How to install macros
- Embedding: Embedding FreeCAD, Embedding FreeCADGui
- Other: Expressions, Code snippets, Line drawing function, FreeCAD vector math library (deprecated)
- Hubs: User hub, Power users hub, Developer hub