always one layer that is active in the editor. The active layer is drawn on top of other layers and will be the layer assigned to newly-created objects. The active layer is indicated in the layer selector highlighted in the appearance panel. To change the active layer, you can left-click a layer name in the appearance panel, use the drop-down layer selector in the top toolbar, or use a hotkey. Layers can hide a layer even if it is the active layer. Display order for board layers The display order for board layers is dynamic and depends on which layer is selected as the active layer. The active layer is

always one layer that is active in the editor. The active layer is drawn on top of other layers and will be the layer assigned to newly-created objects. The active layer is indicated in the layer selector highlighted in the appearance panel. To change the active layer, you can left-click a layer name in the appearance panel, use the drop-down layer selector in the top toolbar, or use a hotkey. Layers can hide a layer even if it is the active layer. Display order for board layers The display order for board layers is dynamic and depends on which layer is selected as the active layer. The active layer is

always one layer that is active in the editor. The active layer is drawn on top of other layers and will be the layer assigned to newly-created objects. The active layer is indicated in the layer selector highlighted in the appearance panel. To change the active layer, you can left-click a layer name in the appearance panel, use the drop-down layer selector in the top toolbar, or use a hotkey. Layers can can be hidden to simplify the board view. You can hide a layer even if it is the active layer. Display order for board layers NOTE TODO: Explain this. The appearance panel The appearance panel provides

always one layer that is active in the editor. The active layer is drawn on top of other layers and will be the layer assigned to newly-created objects. The active layer is indicated in the layer selector highlighted in the appearance panel. To change the active layer, you can left-click a layer name in the appearance panel, use the drop-down layer selector in the top toolbar, or use a hotkey. Layers can can be hidden to simplify the board view. You can hide a layer even if it is the active layer. Display order for board layers NOTE TODO: Explain this. The appearance panel The appearance panel provides

dynamic and depends on which layer is selected as the active layer. The active layer is always drawn on top of other layers. In addition, layers that are related to the active layer are drawn on top of layers layers that are unrelated. For example, if you make B.Silkscreen the active layer, then all of the other back layers (B.Cu, B.Adhesive, B.Paste, B.Mask, B.Fab, and B.Courtyard) will be drawn on top of the to the front. NOTE Selected objects are always drawn on top, even if they are not on the active layer. 外观面板 外观面板提供了管理 PCB 编辑器绘图画布中的对象的可见性、颜色和不透明度的控制。 它有三个标签：层标签包含 电路板层的控制，对象标签包含不同类型图形对象的控制，网络标签包含飞线和铜对象的外观控制。

curved ratsnest lines. Switches the non-active layer display mode between Normal and Dim. Note: this button will be highlighted when the non-active layer display mode is either Dim or Hide. In both cases cases, pressing the button will change the layer display mode to Normal. The Hide mode can only be accessed via the controls in the Appearance Panel or via the hotkey + . When a net has been selected side of the board with the hotkey. Any parts of the footprint on a front layer will be swapped to the corresponding back layer, and vice versa. Rotate a footprint counter-clockwise using the hotkey

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 5.3 Layer Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 5.4 Selection of the active layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 5.4.1 Selection using the layer manager . . . . . . . . . . . . . editable) of the element under the cursor. • Centre button/wheel – Rapid zoom and some commands in layer manager. – Hold down the centre button and draw a rectangle to zoom to the described area. Rotation

editable) of the element under the cursor. Centre button/wheel Rapid zoom and some commands in layer manager. Hold down the centre button and draw a rectangle to zoom to the described area. Rotation active) V: if the track tool is active switches working layer or place via, if a track is in progress. + and -: select next or previous layer. ?: display the list of all hot keys. Space: reset relative compiling). DRC (Design Rule Check): Automatic check of the tracks. Selection of the working layer. Selection of layer pair (for vias) Footprint mode: when active this enables footprint options in the pop-up

and drag starts a block selection operation. Center button/wheel Rapid zoom and some commands in layer manager. Hold down the center button and draw a rectangle to zoom to the described area. Rotation active) V: if the track tool is active switches working layer or place via, if a track is in progress. + and -: select next or previous layer. Ctrl+F1: display the list of all hot keys. Space: reset compiling). DRC (Design Rule Check): Automatic check of the tracks. Selection of the working layer. Selection of layer pair (for vias) Footprint mode: when active this enables footprint options in the pop-up

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 5.3 Layer Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 5.4 Selection of the active layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 5.4.1 Selection using the layer manager . . . . . . . . . . . . . . . starts a block selection operation. 3.2.1.2 Center button/wheel • Rapid zoom and some commands in layer manager. • Hold down the center button and draw a rectangle to zoom to the described area. Rotation