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Click once on a polygonal object to select it, which puts the polygonal object into edit mode. The outer shape of the polygonal object is defined by a series of edges. Each edge is represented by an end vertex at each end, shown as a solid white square, and a center vertex in the middle, shown as a hollow white square. Each end vertex represents the location where two edges meet.
Two or more polygon pour objects can be combined by performing the following sequence of actions:
Combining two existing polygon pours to make a single polygon pour.
One or more polygon pour objects can be subtracted from another 'base' polygon pour by performing the following sequence of actions:
Subtracting an existing polygon pour from an existing 'base' polygon pour.
In addition to the vertex editing, the Modify Polygon Border command allows you to easily change the shape of polygons. The command is performed by right-clicking on the desired polygon then selecting Polygon Actions » Modify Polygon Border. Once the command is launched, the cursor becomes a crosshair. Each time you click, a new vertex is added. As during polygon placement, the Shift+Spacebar keys can be used to change corner shapes.
Similarly to the Modify Polygon Border command, the Modify Board Shape command allows you to easily change the shape of the board. The command is accessed in Board Planning Mode (View » Board Planning Mode) by clicking Design » Modify Board Shape. Once the command is launched, the cursor becomes a crosshair. Each time you click, a new vertex is added. The Shift+Spacebar keys can be used to change corner shapes.
In addition to the vertex editing, the Modify Region Border command allows you to easily change the shape of polygons. The command is run by right-clicking on the desired region then selecting Polygon Actions » Modify Polygon Border. Once the command is launched, the cursor becomes a crosshair. Each time you click, a new vertex is added. The Shift+Spacebar keys can be used to change corner shapes.
When editing polygons, there are three editing modes available: Miter, Incurvate (arc) and Move. The current mode can be changed while dragging a vertex by pressing the Shift+Spacebar keys to cycle through the modes. Feedback about where the cursor is on the board and which editing mode is currently active can be viewed on the Status bar and in the Heads-Up display.
In this mode, click and drag on the center vertex to break that edge into two edges. The cursor displays a double-arrow indicating the Break mode. Note that the mouse cursor has four arrow heads that indicate that you can drag this vertex in all four directions.
Breaking an arc into two arcs.
Breaking a straight edge into two straight edges.
In this mode, click and drag on the center vertex to incurvate, or arc, that edge. Note that the mouse cursor has two arrow heads indicating that you can drag this vertex in two directions.
Arcing an arc edge into a larger or smaller arc.
In this mode, click and drag on the center vertex to move that edge, maintaining the edge length. Note that the mouse cursor has four arrow heads, indicating that you can drag this vertex in all four directions.
Moving an arc while maintaining its length.
Moving a straight edge while maintaining its length.
The three editing modes are also available when moving a corner vertex.
The left image shows the mouse hovering over the corner vertex; the right image shows the vertex moving in Moving Vertex mode.
The left image shows the vertex moving in Mitering to Arc mode; the right image shows the vertex moving in Mitering to Segment mode.
When you hover over an edge, that edge displays as a thick white line. Click+drag on the edge to slide it, shrink or grow the moving edge to maintain the position of adjoining edges.
Sliding the arc edge while maintaining the size and position of adjoining edges.
Sliding the straight edge while maintaining the size and position of adjoining edges.
You can interactively add a vertex or delete a vertex using the following techniques:
Ctrl, hover, then click to add a vertex (left image), or click & hold on an existing vertex and use the Delete key to remove that vertex (right image).
As you move a vertex around, green alignment guides appear. These appear at useful locations, for example, when the vertex location will result in the new edge aligning with an existing edge or when an arc chord aligns with the adjacent edge. There is a slight stickiness when the guidelines appear, making it easy to maintain that vertex position.
Left - using the guideline to remove an arc (incurvate mode). Right - using the guidelines to align a new arc to existing edges.
Left - using the guidelines to help align the breaking edge with existing edges. Right - using the guidelines to align the new vertex location to existing vertices.
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