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Documentation Altium Designer 文档 ... ((PCB Query Functions))_AD PCB Query((Attribute Checks))_AD

Query_Lang-PCBFunctions_AttributeChecks_NetLengthNetLength_AD

Created: 九月 11, 2015 | Updated: 八月 10, 2021 | Applies to versions: 15.1, 16.0, 16.1, 17.0, 17.1, 18.0, 18.1, 19.0, 19.1, 20.0, 20.1 and 20.2
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Parent page: PCB Query Functions - Attribute Checks

Summary Copy Link Copied

Returns Net objects where the total length of arcs and tracks in those nets complies with the Query.

The length of each track is the (Pythagorean) distance between its end points, and is equal to SQRT(SQR(X1 - X2) + SQR(Y1 - Y2)), where X1,Y1 are the coordinates of one end of the track, and X2,Y2 are the coordinates of its other end. The length of each arc is the product of its Radius and the difference between its End Angle and Start Angle, when that difference is measured in units of radians. (180 degrees = pi radians.)

Syntax Copy Link Copied

NetLength : Number

The entered length is always in units of mils, irrespective of the measurement unit chosen for the board. (1 mil = 0.001 inch).

Example Usage Copy Link Copied

NetLength = 30000
Returns all Net objects where the total length of arcs and tracks in those nets is equal to 30000mil.

NetLength >= 15000
Returns all Net objects where the total length of arcs and tracks in those nets is greater than or equal to 15000mil.

NetLength <> 5500
Returns all Net objects where the total length of arcs and tracks in those nets is not equal to 5500mil.

Tips Copy Link Copied

  1. The associated child objects of the complying Net objects are also returned.

 

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注

软件的功能取决于您购买的Altium产品级别。您可以比较Altium Designer软件订阅的各个级别中包含的功能，以及通过Altium 365平台提供的应用程序所能实现的功能。

如果您在软件中找不到某个讨论过的功能，请联系Altium销售团队以获取更多信息。