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Calculating the count and total length of selected lines, polylines, circles, arcs, and splines
Call options
- ModPlus floating menu or palette
- Menu, toolbar, or ribbon in nanoCAD
- Command line: _mncSumLength
Icon
Using
The plugin calculates the total length of selected lines, polylines, circles, arcs, ellipses, and splines. Objects can be selected either before launching the plugin or while the plugin window is open. Calculation results are displayed in the plugin window:

The upper part of the plugin window displays the total length of the selected objects, the multiplier, the scale, and the final length calculated using the multiplier and scale. The final value field cannot be edited manually. Clicking it copies the final value to the clipboard.
When entering multiplier and scale values manually, either a period or a comma can be used as the decimal separator.
The contents of the Length by Objects section, as well as the blocks for individual object types, can be collapsed and expanded using the buttons on the right side of the corresponding headers.
– insert the result as single-line text:Insertion point: – specify the insertion point for the single-line text.
– insert the result into a table cell:Select table: – select a table.
Select cell: – select the cell in which to insert the result.
– export the arithmetic mean (including rounded results) for each object type and for all selected objects to a txt file.
– export the result to a txt file.Entities – list of selected objects.
– zoom to fit the current object on the screen.The
button in the upper-right corner opens the plugin settings:
Decimal separator – specifies the decimal separator used when displaying results.
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Change history forYear
2026 Year
nanoCAD: Sum of lengths 1.3.6.0 (15.10.2026)
NewAdded the choice of the decimal separator.NewAdded copying of the total value to the clipboard by clicking the result field.NewAdded the ability to collapse the window content.ImprovedAdded the ability to use both a dot and a comma to separate the fractional part in coefficients.ImprovedProhibited manual editing of the field with the total value.FixFixed an error where fractional coefficients were not saved when the window was opened again.FixFixed an error where a fractional coefficient selected from the list was not applied with some Windows regional settings.FixFixed an error where a scale with a fractional part gave an incorrect total value with some Windows regional settings.nanoCAD: Sum of lengths 1.0.1.0 (13.09.2026)
ImprovedThe interface was migrated to the current version of the ModPlus styling library. -