Search In: Doc:Documentation: Altium Designer
Altium DesignerAltium 365Altium MCAD CoDesignerAltium On-Prem Enterprise ServerCompany Dashboard
Ver: Version: 22
222120.220.120.019.119.018.118.017.117.016.116.015.1
Close
搜索 Search on Documentation
Documentation Altium Designer 文档 ... 对话框参考 Dialogs((G to L))_AD

PCB_Dlg-LayerDirectionsLayer Directions_AD

Created: 一月 17, 2023 | Updated: 一月 17, 2023 | Applies to version: 22

This document is no longer available beyond version 22. Information can now be found here: Layer Directions for version 25

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。

The Layer Directions dialog
The Layer Directions dialog

Summary Copy Link Copied

This dialog is used to specify preferred routing directions for all enabled signal layers (defined in the layer stack).

Access Copy Link Copied

The dialog is accessed by clicking Edit Layer Directions in the Situs Routing Strategies dialog (click Route » Auto Route » Setup or Route » Auto Route » All).

Options/Controls Copy Link Copied

The dialog presents a grid listing each signal layer as defined in the layer stack. Each layer is presented in terms of the following:

  • Layer - the name of the signal layer.
  • Current Setting - the currently chosen preferred routing direction for the layer. This field is editable. Use the drop-down to select from the following options: Not Used, Horizontal, Vertical, Any, 1 O'Clock, 2 O'Clock, 4 O'Clock, 5 O'Clock, 45 Up, 45 Down, Fan Out, and Automatic.
Choose appropriate layer directions to suit the flow of the connection lines. The Autorouter uses topological mapping to define routing paths so it is not constrained to route in only the horizontal or vertical direction. Typically it is best to have outer layers as Horizontal and Vertical. If, however, the design consists of a multi-layer board with a large number of connections at a '2 O'Clock' angle, then set one or more internal layers to have this as the preferred routing direction.
  • Actual Direction - the direction for routing that the Autorouter is actually using. This field is read-only. It will follow the preferred routing direction chosen for the layer in the Current Setting field, unless Automatic is chosen, in which case it will calculate the best direction to be used, based on the defined routing directions for other layers.
Avoid using the Any direction option on multi-layered boards. The Autorouter will usually attempt to route a connection on the layer whose direction most closely matches it, so a layer marked as 'any direction' becomes the layer of last resort. The Any direction option is typically only used on single-sided boards.
The Layer Patterns pass in a routing strategy makes use of preferred routing direction information and choosing the right direction can make a significant difference to routing performance in terms of both time and quality.
Note that when angled layers are being used, there is no requirement that they have a partner layer running at 90 degrees to this layer since the router will typically route horizontally or vertically if it needs to avoid an obstacle on an angled layer.
中文(简体)
If you find an issue, select the text/image and pressCtrl + Enterto send us your feedback.
适合打印版本
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。